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Document and Entity Information - shares	3 Months Ended
Document and Entity Information - shares	Mar. 31, 2018	Apr. 18, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1
Trading Symbol	TBK
Entity Registrant Name	TRIUMPH BANCORP, INC.
Entity Central Index Key	0001539638
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		26,242,376

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
ASSETS
Cash and due from banks	$ 45,887	$ 59,114
Interest bearing deposits with other banks	60,159	75,015
Total cash and cash equivalents	106,046	134,129
Securities - available for sale	192,916	250,603
Securities - equity investments	4,925	5,006
Securities - held to maturity, fair value of $8,111 and $7,527, respectively	8,614	8,557
Loans, net of allowance for loan and lease losses of $20,022 and $18,748, respectively	2,853,963	2,792,108
Assets held for sale		71,362
Federal Home Loan Bank stock, at cost	16,508	16,006
Premises and equipment, net	62,826	62,861
Other real estate owned, net	9,186	9,191
Goodwill	45,373	44,126
Intangible assets, net	18,550	19,652
Bank-owned life insurance	44,534	44,364
Deferred tax assets, net	8,849	8,959
Other assets	32,720	32,109
Total assets	3,405,010	3,499,033
Liabilities
Noninterest bearing	548,991	564,225
Interest bearing	1,984,507	2,057,123
Total deposits	2,533,498	2,621,348
Customer repurchase agreements	6,751	11,488
Federal Home Loan Bank advances	355,000	365,000
Subordinated notes	48,853	48,828
Junior subordinated debentures	38,734	38,623
Other liabilities	19,230	22,048
Total liabilities	3,002,066	3,107,335
Commitments and contingencies - See Note 8 and Note 9
Stockholders' equity - See Note 12
Preferred Stock	9,658	9,658
Common stock, 20,824,509 and 20,820,445 shares outstanding, respectively	209	209
Additional paid-in-capital	265,406	264,855
Treasury stock, at cost	(1,853)	(1,784)
Retained earnings	131,234	119,356
Accumulated other comprehensive income (loss)	(1,710)	(596)
Total stockholders’ equity	402,944	391,698
Total liabilities and stockholders' equity	$ 3,405,010	$ 3,499,033

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Statement Of Financial Position [Abstract]
Securities - Held to maturity, Fair value	$ 8,111	$ 7,527
Allowance for loan and lease losses	$ 20,022	$ 18,748	$ 19,093	$ 15,405
Common stock, outstanding	20,824,509	20,820,445

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended
CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	Mar. 31, 2018	Mar. 31, 2017
Interest and dividend income:
Loans, including fees	$ 36,883	$ 25,185
Factored receivables, including fees	15,303	9,167
Securities	1,310	1,611
FHLB stock	105	42
Cash deposits	517	327
Total interest income	54,118	36,332
Interest expense:
Deposits	4,277	2,869
Subordinated notes	837	835
Junior subordinated debentures	597	465
Other borrowings	1,277	344
Total interest expense	6,988	4,513
Net interest income	47,130	31,819
Provision for loan losses	2,548	7,678
Net interest income after provision for loan losses	44,582	24,141
Noninterest income:
Service charges on deposits	1,145	980
Card income	1,244	827
Net OREO gains (losses) and valuation adjustments	(88)	11
Net gains (losses) on sale of securities	(272)
Fee income	800	583
Insurance commissions	714	590
Asset management fees		1,717
Gain on sale of subsidiary or division	1,071	20,860
Other	558	1,717
Total noninterest income	5,172	27,285
Noninterest expense:
Salaries and employee benefits	19,404	21,958
Occupancy, furniture and equipment	3,054	2,359
FDIC insurance and other regulatory assessments	199	226
Professional fees	1,640	1,968
Amortization of intangible assets	1,117	1,111
Advertising and promotion	1,029	938
Communications and technology	3,359	2,174
Other	4,240	4,103
Total noninterest expense	34,042	34,837
Net income before income tax	15,712	16,589
Income tax expense	3,644	6,116
Net income	12,068	10,473
Dividends on preferred stock	(190)	(192)
Net income available to common stockholders	$ 11,878	$ 10,281
Earnings per common share
Basic	$ 0.57	$ 0.57
Diluted	$ 0.56	$ 0.55

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 12,068	$ 10,473
Unrealized gains (losses) on securities:
Unrealized holding gains (losses) arising during the period	(1,708)	335
Reclassification of amount realized through sale of securities	272
Tax effect	322	(125)
Total other comprehensive income (loss)	(1,114)	210
Comprehensive income	$ 10,954	$ 10,683

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Series A Preferred Dividends	Series B Preferred Dividends	Preferred Stock	Common Stock	Additional Paid-in-Capital	Treasury Stock	Retained Earnings	Retained Earnings Series A Preferred Dividends	Retained Earnings Series B Preferred Dividends	Accumulated Other Comprehensive Income
Beginning Balance at Dec. 31, 2016	$ 289,345			$ 9,746	$ 182	$ 197,157	$ (1,374)	$ 83,910			$ (276)
Beginning Balance (in shares) at Dec. 31, 2016					18,078,247		76,118
Issuance of restricted stock awards (in shares)					5,174
Stock based compensation	702					702
Forfeiture of restricted stock awards						7	$ (7)
Forfeiture of restricted stock awards (in shares)					(251)		251
Purchase of treasury stock	(113)						$ (113)
Purchase of treasury stock (in shares)					4,401		(4,401)
Preferred dividends		$ (90)	$ (102)						$ (90)	$ (102)
Net income	10,473							10,473
Other comprehensive income	210										210
Ending Balance at Mar. 31, 2017	300,425			9,746	$ 182	197,866	$ (1,494)	94,191			(66)
Ending Balance (in shares) at Mar. 31, 2017					18,078,769		80,770
Beginning Balance at Dec. 31, 2017	391,698			9,658	$ 209	264,855	$ (1,784)	119,356			(596)
Beginning Balance (in shares) at Dec. 31, 2017					20,820,445		91,951
Issuance of restricted stock awards (in shares)					5,492
Stock based compensation	486					486
Forfeiture of restricted stock awards						69	$ (69)
Forfeiture of restricted stock awards (in shares)					(1,574)		1,574
Stock options exercised	(4)					(4)
Stock option exercises, net (in shares)					146
Preferred dividends		$ (90)	$ (100)						$ (90)	$ (100)
Net income	12,068							12,068
Other comprehensive income	(1,114)										(1,114)
Ending Balance at Mar. 31, 2018	$ 402,944			$ 9,658	$ 209	$ 265,406	$ (1,853)	$ 131,234			$ (1,710)
Ending Balance (in shares) at Mar. 31, 2018					20,824,509		93,525

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net income	$ 12,068,000	$ 10,473,000
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation	1,216,000	958,000
Net accretion on loans and deposits	(1,977,000)	(1,080,000)
Amortization of subordinated notes issuance costs	25,000	23,000
Amortization of junior subordinated debentures	111,000	100,000
Net amortization on securities	331,000	644,000
Amortization of intangible assets	1,117,000	1,111,000
Deferred taxes	439,000	3,023,000
Provision for loan losses	2,548,000	7,678,000
Stock based compensation	486,000	702,000
Net (gains) losses on sale of securities	272,000
Net (gain) loss on loans transferred to loans held for sale		46,000
Net OREO (gains) losses and valuation adjustments	88,000	(11,000)
Gain on sale of subsidiary or division	(1,071,000)	(20,860,000)
Income from CLO warehouse investments		(964,000)
(Increase) decrease in other assets	(1,705,000)	509,000
Increase (decrease) in other liabilities	(4,498,000)	1,262,000
Net cash provided by (used in) operating activities	9,450,000	3,614,000
Cash flows from investing activities:
Purchases of securities available for sale		(4,817,000)
Proceeds from sales of securities available for sale	34,196,000
Proceeds from maturities, calls, and pay downs of securities available for sale	21,210,000	24,706,000
Proceeds from maturities, calls, and pay downs of securities held to maturity	185,000	4,109,000
Proceeds from sale of loans	0	1,919,000
Net change in loans	(62,509,000)	(7,947,000)
Purchases of premises and equipment, net	(1,181,000)	(405,000)
Net proceeds from sale of OREO		683,000
(Purchases) redemptions of FHLB stock, net	(502,000)	1,263,000
Proceeds from sale of subsidiary or division, net	73,849,000	10,269,000
Net cash provided by (used in) investing activities	65,248,000	29,780,000
Cash flows from financing activities:
Net increase (decrease) in deposits	(87,850,000)	8,503,000
Increase (decrease) in customer repurchase agreements	(4,737,000)	(22,000)
Increase (decrease) in Federal Home Loan Bank advances	(10,000,000)	(30,000,000)
Stock option exercises	(4,000)
Purchase of treasury stock		(113,000)
Dividends on preferred stock	(190,000)	(192,000)
Net cash provided by (used in) financing activities	(102,781,000)	(21,824,000)
Net increase (decrease) in cash and cash equivalents	(28,083,000)	11,570,000
Cash and cash equivalents at beginning of period	134,129,000	114,514,000
Cash and cash equivalents at end of period	106,046,000	126,084,000
Supplemental cash flow information:
Interest paid	7,562,000	5,269,000
Income taxes paid (refunds received), net	48,000	(917,000)
Supplemental noncash disclosures:
Loans transferred to OREO	$ 83,000	5,960,000
Premises transferred to OREO		273,000
Loans transferred to loans held for sale		1,965,000
Securities held to maturity purchased, not settled		3,260,000
Consideration received from sale of subsidiary		$ 12,123,000

Summary of Significant Accounting Policies	3 Months Ended
Summary of Significant Accounting Policies	Mar. 31, 2018
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	NOTE 1 – SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Nature of Operations Triumph Bancorp, Inc. (collectively with its subsidiaries, “Triumph”, or the “Company” as applicable) is a financial holding company headquartered in Dallas, Texas. The accompanying consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries Triumph CRA Holdings, LLC (“TCRA”), TBK Bank, SSB (“TBK Bank”), TBK Bank’s wholly owned subsidiary Advance Business Capital LLC, which currently operates under the d/b/a of Triumph Business Capital (“TBC”), and TBK Bank’s wholly owned subsidiary Triumph Insurance Group, Inc. (“TIG”). On March 16, 2018, the Company sold the assets of Triumph Healthcare Finance (“THF”) and exited its healthcare asset-based lending line of business. THF operated within the Company’s TBK Bank subsidiary. See Note 2 – Business Combinations and Divestitures for details of the THF sale and its impact on our consolidated financial statements. On March 31, 2017 the Company sold its membership interests in its wholly owned subsidiary Triumph Capital Advisors, LLC (“TCA”). See Note 2 – Business Combinations and Divestitures for details of the TCA sale and its impact on our consolidated financial statements. Principles of Consolidation and Basis of Presentation The accompanying unaudited condensed consolidated financial statements of the Company have been prepared in accordance with United States Generally Accepted Accounting Principles (“GAAP”) for interim financial information and in accordance with guidance provided by the Securities and Exchange Commission. Accordingly, the condensed financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates. In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all normal and recurring adjustments considered necessary for a fair presentation. Transactions between the subsidiaries have been eliminated. These condensed consolidated financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2017. Operating results for the three months ended March 31, 2018 are not necessarily indicative of the results that may be expected for the year ending December 31, 2018. The Company has three reportable segments consisting of Banking, Factoring, and Corporate. The Company’s Chief Executive Officer uses segment results to make operating and strategic decisions. Revenue from Contracts with Customers The Company records revenue from contracts with customers in accordance with Accounting Standards Codification Topic 606, “Revenue from Contracts with Customers” (“Topic 606”). Under Topic 606, the Company must identify the contract with a customer, identify the performance obligations in the contract, determine the transaction price, allocate the transaction price to the performance obligations in the contract, and recognize revenue when (or as) the Company satisfies a performance obligation. Significant revenue has not been recognized in the current reporting period that results from performance obligations satisfied in previous periods. The Company’s primary sources of revenue are derived from interest and dividends earned on loans, investment securities, and other financial instruments that are not within the scope of Topic 606. The Company has evaluated the nature of its contracts with customers and determined that further disaggregation of revenue from contracts with customers into more granular categories beyond what is presented in the Consolidated Statements of Income was not necessary. The Company generally fully satisfies its performance obligations on its contracts with customers as services are rendered and the transaction prices are typically fixed; charged either on a periodic basis or based on activity. Because performance obligations are satisfied as services are rendered and the transaction prices are fixed, there is little judgment involved in applying Topic 606 that significantly affects the determination of the amount and timing of revenue from contracts with customers. Income Taxes On December 22, 2017, the United States enacted tax reform legislation commonly known as the Tax Cuts and Jobs Act (the “Tax Act”), resulting in significant modifications to existing law. Authoritative guidance and interpretation by regulatory bodies is ongoing, and as such, the accounting for the effects of the Tax Act is not final and the full impact of the new regulation is still being evaluated. Adoption of New Accounting Standards In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, “Revenue from Contracts with Customers” (“ASU 2014-09”), which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The ASU replaces most existing revenue recognition guidance in GAAP. The new standard was effective for the Company on January 1, 2018. Adoption of ASU 2014-09 did not have a material impact on the Company’s consolidated financial statements and related disclosures as the Company’s primary sources of revenues are derived from interest and dividends earned on loans, investment securities, and other financial instruments that are not within the scope of ASU 2014-09. The Company’s revenue recognition pattern for revenue streams within the scope of ASU 2014-09, including but not limited to service charges on deposit accounts and gains/losses on the sale of OREO, did not change significantly from current practice. The standard permits the use of either the full retrospective or modified retrospective transition method. The Company elected to use the modified retrospective transition method which requires application of ASU 2014-09 to uncompleted contracts at the date of adoption however, periods prior to the date of adoption will not be retrospectively revised as the impact of the ASU on uncompleted contracts at the date of adoption was not material. In January 2016, the FASB issued ASU No. 2016-01, “Financial Instruments – Overall: Recognition and Measurement of Financial Assets and Financial Liabilities” (“ASU 2016-01”). The guidance affects the accounting for equity investments, financial liabilities under the fair value option and the presentation and disclosure requirements of financial instruments. ASU 2016-01 was effective for the Company on January 1, 2018 and resulted in separate classification of equity securities previously included in available for sale securities on the consolidated balance sheets with changes in the fair value of the equity securities captured in the consolidated statements of income. See Note 3 – Securities for disclosures related to equity securities. Adoption of the standard also resulted in the use of an exit price rather than an entrance price to determine the fair value of loans not measured at fair value on a non-recurring basis in the consolidated balance sheets. See Note 10 – Fair Value Disclosures for further information regarding the valuation of these loans. In January 2017, the FASB issued ASU 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business,” (“ASU 2017-01”) to improve such definition and, as a result, assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or as business combinations. The definition of a business impacts many areas of accounting including acquisitions, disposals, goodwill and consolidation. ASU 2017-01 was effective for the Company on January 1, 2018 and is to be applied under a prospective approach. The Company expects the adoption of this new guidance to impact the determination of whether future acquisitions are considered business combinations. Newly Issued, But Not Yet Effective Accounting Standards In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842)” (“ASU 2016-02”). The FASB issued this ASU to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet by lessees for those leases classified as operating leases under current U.S. GAAP and disclosing key information about leasing arrangements. The amendments in this ASU are effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2018. Early application of this ASU is permitted for all entities. Adoption of ASU 2016-02 is not expected to have a material impact on the Company’s consolidated financial statements. The Company leases certain properties and equipment under operating leases that will result in the recognition of lease assets and lease liabilities on the Company’s balance sheet under the ASU, however, the majority of the Company’s properties and equipment are owned, not leased. At March 31, 2018, the Company had contractual operating lease commitments of approximately $10,222,000, before considering renewal options that are generally present. In June 2016, the FASB issued ASU 2016-13, “Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”). Among other things, ASU 2016-13 requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Financial institutions and other organizations will now use forward-looking information to form their credit loss estimates. Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. In addition, ASU 2016-13 amends the accounting for credit losses on debt securities and purchased financial assets with credit deterioration. The amendments in ASU 2016-13 are effective for fiscal years beginning after December 31, 2019, and interim periods within those years for public business entities that are SEC filers. Early adoption is permitted for fiscal years, and interim periods within those years, beginning after December 15, 2018, however, the Company does not currently plan to early adopt the ASU. The Company has formed a cross functional team that is assessing the Company’s data and system needs and evaluating the impact that adoption of this standard will have on the financial condition and results of operations of the Company.

Business Combinations and Divestitures

3 Months Ended

Mar. 31, 2018

Business Combinations [Abstract]

Business Combinations and Divestitures

NOTE 2 – Business combinations AND DIVESTITURES

Triumph Healthcare Finance

On January 19, 2018, the Company entered into an agreement to sell the assets (the “Disposal Group”) of Triumph Healthcare Finance (“THF”) and exit its healthcare asset-based lending line of business. At December 31, 2017, the carrying amount of the Disposal Group was transferred to assets held for sale. The sale closed on March 16, 2018.

A summary of the carrying amount of the assets in the Disposal Group and the gain on sale is as follows:

(Dollars in thousands)
Carrying amount of assets in the disposal group:
Loans	$	70,147
Premises and equipment, net		19
Goodwill		1,457
Intangible assets, net		958
Other assets		197
Total carrying amount		72,778
Total consideration received		74,017
Gain on sale of division		1,239
Transaction costs		168
Gain on sale of division, net of transaction costs	$	1,071

The Disposal Group was included in the Banking segment, and the loans in the Disposal Group were previously included in the commercial loan portfolio.

Valley Bancorp, Inc.

Effective December 9, 2017, the Company acquired Valley Bancorp, Inc. (“Valley”) and its community banking subsidiary, Valley Bank & Trust, in an all-cash transaction. Valley Bank & Trust serves individuals and business customers from seven locations across the northern front range including Brighton, Dacono, Denver, Hudson, Westminster and Strasburg, Colorado. Valley Bank & Trust was merged into TBK Bank upon closing. The acquisition expanding the Company’s market in Colorado and further diversified the Company’s loan, customer, and deposit base.

A summary of the estimated fair values of assets acquired, liabilities assumed, consideration transferred, and the resulting goodwill is as follows:

	Initial Values		Measurement
	Recorded at		Period			Adjusted
(Dollars in thousands)	Acquisition Date		Adjustments			Values
Assets acquired:
Cash and cash equivalents	$	38,473	$	—		$	38,473
Securities		97,687		—			97,687
Loans		171,199		—			171,199
FHLB stock		315		—			315
Premises and equipment		6,238		—			6,238
Other real estate owned		2,282		—			2,282
Intangible assets		6,072		—			6,072
Bank-owned life insurance		7,153		—			7,153
Other assets		1,882		—			1,882
		331,301		—			331,301
Liabilities assumed:
Deposits		293,398		—			293,398
Junior subordinated debentures		5,470		—			5,470
Other liabilities		2,881		1,680			4,561
		301,749		1,680			303,429
Fair value of net assets acquired		29,552		(1,680	)		27,872
Consideration transferred		40,075		—			40,075
Goodwill	$	10,523	$	1,680		$	12,203

The Company has recognized goodwill of $12,203,000, which included a measurement period adjustment for a post-retirement benefit obligation related to an acquired split-dollar bank-owned life insurance policy. Goodwill was calculated as the excess of both the consideration exchanged and the liabilities assumed as compared to the fair value of identifiable net assets acquired and was allocated to the Company’s Banking segment. The goodwill in this acquisition resulted from expected synergies and expansion in the Colorado market. The goodwill will be deducted for tax purposes. The intangible assets recognized in the transaction will be amortized utilizing an accelerated method over their ten year estimated useful lives. The initial accounting for the acquisition has not been completed because the fair values of the assets acquired and liabilities assumed have not yet been finalized.

In connection with the acquisition, the Company acquired loans both with and without evidence of credit quality deterioration since origination. The acquired loans were initially recorded at fair value with no carryover of any allowance for loan and lease losses. Acquired loans were segregated between those considered to be purchased credit impaired (“PCI”) loans and those without credit impairment at acquisition. The following table presents details of the estimated fair value of acquired loans at the acquisition date:

	Loans,
	Excluding		PCI		Total
(Dollars in thousands)	PCI Loans		Loans		Loans
Commercial real estate	$	73,273	$	254	$	73,527
Construction, land development, land		19,770		1,199		20,969
1-4 family residential properties		26,264		—		26,264
Farmland		16,934		—		16,934
Commercial		31,893		—		31,893
Factored receivables		—		—		—
Consumer		1,612		—		1,612
Mortgage warehouse		—		—		—
	$	169,746	$	1,453	$	171,199

The operations of Valley are included in the Company’s operating results beginning December 9, 2017.

Expenses related to the acquisition, including professional fees and other transaction costs, totaling $1,251,000 were recorded in noninterest expense in the consolidated statements of income during the three months ended December 31, 2017.

Independent Bank – Colorado Branches

On October 6, 2017, the Company completed its acquisition of nine branch locations in Colorado from Independent Bank Group, Inc.’s banking subsidiary Independent Bank for an aggregate deposit premium of $6,771,000 or 4.2%. The branches were merged into TBK Bank upon closing. The primary purpose of the acquisition was to improve the Company’s core deposit base and continue to build upon the diversification of the Company’s loan portfolio.

A summary of the estimated fair values of assets acquired, liabilities assumed, consideration transferred, and the resulting goodwill is as follows:

(Dollars in thousands)
Assets acquired:
Cash and cash equivalents	$	1,611
Loans		95,794
Premises and equipment		7,524
Intangible assets		3,255
Other assets		1,644
		109,828
Liabilities assumed:
Deposits		160,702
Other liabilities		249
		160,951
Fair value of net assets acquired		(51,123	)
Cash received from seller, net of $6,771 deposit premium		45,306
Goodwill	$	5,817

The Company has recognized goodwill of $5,817,000, which was calculated as the excess of both the consideration exchanged and the liabilities assumed as compared to the fair value of identifiable net assets acquired and was allocated to the Company’s Banking segment. The goodwill in this acquisition resulted from expected synergies and expansion in the Colorado market. The goodwill will be deducted for tax purposes. The intangible assets recognized in the transaction will be amortized utilizing an accelerated method over their ten year estimated useful lives. The initial accounting for the acquisition has not been completed because the fair values of the assets acquired and liabilities assumed have not yet been finalized.

The following table presents details of the estimated fair value of acquired loans at the acquisition date:

(Dollars in thousands)
Commercial real estate	$	13,382
Construction, land development, land		537
1-4 family residential properties		6,986
Farmland		31,490
Commercial		43,104
Factored receivables		—
Consumer		295
Mortgage warehouse		—
	$	95,794

The operations of the branches acquired are included in the Company’s operating results beginning October 6, 2017.

Expenses related to the acquisition, including professional fees and other transaction costs, totaling $437,000 were recorded in noninterest expense in the consolidated statements of income during the three months ended December 31, 2017.

Triumph Capital Advisors, LLC

On March 31, 2017, the Company sold its wholly owned asset management subsidiary, Triumph Capital Advisors, LLC, to an unrelated third party. The transaction was completed to enhance shareholder value and provide a platform for TCA to operate without the impact of regulations intended for depository institutions.

A summary of the consideration received and the gain on sale is as follows:

(Dollars in thousands)
Consideration received (fair value):
Cash	$	10,554
Loan receivable		10,500
Revenue share		1,623
Total consideration received		22,677
Carrying value of TCA membership interest		1,417
Gain on sale of subsidiary		21,260
Transaction costs		400
Gain on sale of subsidiary, net of transaction costs	$	20,860

The Company financed a portion of the consideration received with a $10,500,000 term credit facility. Terms of the floating rate credit facility provide for quarterly principal and interest payments with an interest rate floor of 5.50%, maturing on March 31, 2023. The Company received a $25,000 origination fee associated with the term credit facility that was deferred and will be accreted over the contractual life of the loan as a yield adjustment.

In addition, the Company is entitled to receive an annual earn-out payment representing 3% of TCA’s future annual gross revenue, with a total maximum earn-out amount of $2,500,000. The revenue share earn-out is considered contingent consideration which the Company elected to record as an asset at its estimated fair value of $1,623,000 on the date of sale. The fair value of the revenue share asset was $1,737,000 at March 31, 2018.

The Company incurred pre-tax expenses related to the transaction, including professional fees and other direct transaction costs, totaling $400,000 which were netted against the gain on sale of subsidiary in the consolidated statements of income during the three months ended March 31, 2017.

Securities

3 Months Ended

Mar. 31, 2018

Investments Debt And Equity Securities [Abstract]

Securities

NOTE 3 - SECURITIES

Equity Securities

The Company held equity securities with fair values of $4,925,000 and $5,006,000 at March 31, 2018 and December 31, 2017, respectively. During the three months ended March 31, 2018, the Company recognized an unrealized loss of $75,000 on the equity securities held at March 31, 2018, which was recorded in noninterest income in the consolidated statements of income. There were no sales of equity securities during the three months ended March 31, 2018.

Debt Securities

Debt securities have been classified in the financial statements as available for sale or held to maturity. The amortized cost of debt securities and their approximate fair values at March 31, 2018 and December 31, 2017 are as follows:

			Gross		Gross
(Dollars in thousands)	Amortized		Unrealized		Unrealized			Fair
March 31, 2018	Cost		Gains		Losses			Value
Available for sale securities:
U.S. Government agency obligations	$	99,885	$	7	$	(1,157	)	$	98,735
U.S. Treasury notes		1,944		—		(28	)		1,916
Mortgage-backed securities, residential		31,965		227		(445	)		31,747
Asset backed securities		11,292		46		(91	)		11,247
State and municipal		36,806		7		(729	)		36,084
Corporate bonds		9,744		38		(78	)		9,704
SBA pooled securities		3,494		4		(15	)		3,483
Total available for sale securities	$	195,130	$	329	$	(2,543	)	$	192,916

			Gross		Gross
	Amortized		Unrecognized		Unrecognized			Fair
	Cost		Gains		Losses			Value
Held to maturity securities:
CLO securities	$	8,614	$	—	$	(503	)	$	8,111

			Gross		Gross
(Dollars in thousands)	Amortized		Unrealized		Unrealized			Fair
December 31, 2017	Cost		Gains		Losses			Value
Available for sale securities:
U.S. Government agency obligations	$	110,531	$	76	$	(717	)	$	109,890
U.S. Treasury notes		1,940		—		(6	)		1,934
Mortgage-backed securities, residential		33,537		306		(180	)		33,663
Asset backed securities		11,883		47		(85	)		11,845
State and municipal		74,684		150		(443	)		74,391
Corporate bonds		15,271		52		(3	)		15,320
SBA pooled securities		3,535		27		(2	)		3,560
Total available for sale securities	$	251,381	$	658	$	(1,436	)	$	250,603

			Gross		Gross
	Amortized		Unrecognized		Unrecognized			Fair
	Cost		Gains		Losses			Value
Held to maturity securities:
CLO securities	$	8,557	$	—	$	(1,030	)	$	7,527

The amortized cost and estimated fair value of debt securities at March 31, 2018, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	Available for Sale Securities				Held to Maturity Securities
	Amortized		Fair		Amortized		Fair
(Dollars in thousands)	Cost		Value		Cost		Value
Due in one year or less	$	13,901	$	13,874	$	—	$	—
Due from one year to five years		103,224		101,922		—		—
Due from five years to ten years		18,622		18,198		—		—
Due after ten years		12,632		12,445		8,614		8,111
		148,379		146,439		8,614		8,111
Mortgage-backed securities, residential		31,965		31,747		—		—
Asset backed securities		11,292		11,247		—		—
SBA pooled securities		3,494		3,483		—		—
	$	195,130	$	192,916	$	8,614	$	8,111

Proceeds from sales of debt securities and the associated gross gains and losses for the three months ended March 31, 2018 and 2017 are as follows:

	Three Months Ended March 31,
(Dollars in thousands)	2018			2017
Proceeds	$	34,196		$	—
Gross gains	$	5		$	—
Gross losses	$	(277	)	$	—

Debt securities with a carrying amount of approximately $68,550,000 and $85,985,000 at March 31, 2018 and December 31, 2017, respectively, were pledged to secure public deposits, customer repurchase agreements, and for other purposes required or permitted by law.

Information pertaining to debt securities with gross unrealized and unrecognized losses at March 31, 2018 and December 31, 2017, aggregated by investment category and length of time that individual securities have been in a continuous loss position, are summarized as follows:

	Less than 12 Months					12 Months or More					Total
(Dollars in thousands)	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
March 31, 2018	Value		Losses			Value		Losses			Value		Losses
Available for sale securities:
U.S. Government agency obligations	$	59,525	$	(521	)	$	34,271	$	(636	)	$	93,796	$	(1,157	)
U.S. Treasury notes		1,916		(28	)		—		—			1,916		(28	)
Mortgage-backed securities, residential		12,473		(202	)		6,023		(243	)		18,496		(445	)
Asset backed securities		—		—			4,901		(91	)		4,901		(91	)
State and municipal		27,000		(541	)		8,058		(188	)		35,058		(729	)
Corporate bonds		6,142		(76	)		373		(2	)		6,515		(78	)
SBA pooled securities		2,563		(15	)		—		—			2,563		(15	)
	$	109,619	$	(1,383	)	$	53,626	$	(1,160	)	$	163,245	$	(2,543	)

	Less than 12 Months					12 Months or More					Total
(Dollars in thousands)	Fair		Unrecognized			Fair		Unrecognized			Fair		Unrecognized
March 31, 2018	Value		Losses			Value		Losses			Value		Losses
Held to maturity securities:
CLO securities	$	1,701	$	(152	)	$	6,410	$	(351	)	$	8,111	$	(503	)

	Less than 12 Months					12 Months or More					Total
(Dollars in thousands)	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
December 31, 2017	Value		Losses			Value		Losses			Value		Losses
Available for sale securities:
U.S. Government agency obligations	$	47,605	$	(166	)	$	40,053	$	(551	)	$	87,658	$	(717	)
U.S. Treasury notes		1,934		(6	)		—		—			1,934		(6	)
Mortgage-backed securities, residential		10,349		(21	)		6,200		(159	)		16,549		(180	)
Asset backed securities		4,898		(85	)		—		—			4,898		(85	)
State and municipal		32,257		(216	)		12,138		(227	)		44,395		(443	)
Corporate bonds		4,073		(2	)		149		(1	)		4,222		(3	)
SBA pooled securities		1,654		(2	)		—		—			1,654		(2	)
	$	102,770	$	(498	)	$	58,540	$	(938	)	$	161,310	$	(1,436	)

	Less than 12 Months					12 Months or More					Total
(Dollars in thousands)	Fair		Unrecognized			Fair		Unrecognized			Fair		Unrecognized
December 31, 2017	Value		Losses			Value		Losses			Value		Losses
Held to maturity securities:
CLO securities	$	1,835	$	(28	)	$	5,692	$	(1,002	)	$	7,527	$	(1,030	)

Management evaluates debt securities for other than temporary impairment at least on a quarterly basis, and more frequently when economic or market concerns warrant such evaluation. Consideration is given to (1) the length of time and the extent to which the fair value has been less than cost, (2) the financial condition and near-term prospects of the issuer, and (3) the intent and ability of the Company to retain its investment in the security for a period of time sufficient to allow for any anticipated recovery in fair value.

At March 31, 2018, the Company had 162 debt securities in an unrealized loss position. Management does not have the intent to sell any of these securities and believes that it is more likely than not that the Company will not have to sell any such securities before a recovery of cost. The fair value is expected to recover as the securities approach their maturity date or repricing date or if market yields for such investments decline. Management does not believe that any of the securities are impaired due to reasons of credit quality. Accordingly, as of March 31, 2018, management believes that the unrealized losses detailed in the previous table are temporary and no other than temporary impairment loss has been recognized in the Company’s consolidated statements of income.

Loans and Allowance for Loan and Lease Losses

3 Months Ended

Mar. 31, 2018

Loans And Leases Receivable Disclosure [Abstract]

Loans and Allowance for Loan and Lease Losses

NOTE 4 - LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES

The following table presents the recorded investment and unpaid principal for loans at March 31, 2018 and December 31, 2017:

	March 31, 2018								December 31, 2017
	Recorded			Unpaid					Recorded			Unpaid
(Dollars in thousands)	Investment			Principal		Difference			Investment			Principal		Difference
Commercial real estate	$	781,006		$	788,458	$	(7,452	)	$	745,893		$	753,803	$	(7,910	)
Construction, land development, land		143,876			146,493		(2,617	)		134,812			138,045		(3,233	)
1-4 family residential properties		122,979			124,558		(1,579	)		125,827			127,499		(1,672	)
Farmland		184,064			187,585		(3,521	)		180,141			184,006		(3,865	)
Commercial		930,283			932,878		(2,595	)		920,812			924,133		(3,321	)
Factored receivables		397,145			398,911		(1,766	)		374,410			376,046		(1,636	)
Consumer		29,244			29,254		(10	)		31,131			31,144		(13	)
Mortgage warehouse		285,388			285,388		—			297,830			297,830		—
Total		2,873,985		$	2,893,525	$	(19,540	)		2,810,856		$	2,832,506	$	(21,650	)
Allowance for loan and lease losses		(20,022	)							(18,748	)
	$	2,853,963							$	2,792,108

The difference between the recorded investment and the unpaid principal is primarily (1) premiums and discounts associated with acquisition date fair value adjustments on acquired loans (both PCI and non-PCI) totaling $16,746,000 and $18,706,000 at March 31, 2018 and December 31, 2017, respectively, and (2) net deferred origination and factoring fees totaling $2,794,000 and $2,944,000 at March 31, 2018 and December 31, 2017, respectively.

At March 31, 2018 and December 31, 2017, the Company had $37,174,000 and $32,459,000, respectively, of customer reserves associated with factored receivables. These amounts represent customer reserves held to settle any payment disputes or collection shortfalls, may be used to pay customers’ obligations to various third parties as directed by the customer, are periodically released to or withdrawn by customers, and are reported as deposits in the consolidated balance sheets.

Loans with carrying amounts of $735,632,000 and $596,230,000 at March 31, 2018 and December 31, 2017, respectively, were pledged to secure Federal Home Loan Bank borrowing capacity.

During the three months ended March 31, 2017, loans with carrying amounts of $1,965,000 were transferred to loans held for sale as the Company made the decision to sell the loans. These loans were subsequently sold resulting in proceeds of $1,919,000 and losses on sale of loans of $46,000, which were recorded as other noninterest income in the consolidated statements of income. There were no loans sold during the three months ended March 31, 2018 other than those included in the sale of THF. See Note 2 – Business Combinations and Divestitures for details of the THF sale and its impact on our consolidated financial statements.

Allowance for Loan and Lease Losses

The activity in the allowance for loan and lease losses (“ALLL”) during the three months ended March 31, 2018 and 2017 is as follows:

(Dollars in thousands)	Beginning										Ending
Three months ended March 31, 2018	Balance		Provision			Charge-offs			Recoveries		Balance
Commercial real estate	$	3,435	$	33		$	—		$	—	$	3,468
Construction, land development, land		883		107			—			8		998
1-4 family residential properties		293		(48	)		—			3		248
Farmland		310		308			—			—		618
Commercial		8,150		1,420			(439	)		62		9,193
Factored receivables		4,597		469			(584	)		11		4,493
Consumer		783		271			(443	)		108		719
Mortgage warehouse		297		(12	)		—			—		285
	$	18,748	$	2,548		$	(1,466	)	$	192	$	20,022

(Dollars in thousands)	Beginning										Ending
Three months ended March 31, 2017	Balance		Provision			Charge-offs			Recoveries		Balance
Commercial real estate	$	1,813	$	567		$	(137	)	$	—	$	2,243
Construction, land development, land		465		513			(419	)		7		566
1-4 family residential properties		253		(70	)		(28	)		5		160
Farmland		170		44			—			—		214
Commercial		8,014		5,793			(2,852	)		222		11,177
Factored receivables		4,088		519			(580	)		37		4,064
Consumer		420		372			(299	)		54		547
Mortgage warehouse		182		(60	)		—			—		122
	$	15,405	$	7,678		$	(4,315	)	$	325	$	19,093

The following table presents loans individually and collectively evaluated for impairment, as well as purchased credit impaired (“PCI”) loans, and their respective ALLL allocations:

(Dollars in thousands)	Loan Evaluation								ALLL Allocations
March 31, 2018	Individually		Collectively		PCI		Total loans		Individually		Collectively		PCI		Total ALLL
Commercial real estate	$	881	$	770,376	$	9,749	$	781,006	$	123	$	3,345	$	—	$	3,468
Construction, land development, land		139		139,824		3,913		143,876		21		977		—		998
1-4 family residential properties		2,332		119,570		1,077		122,979		141		107		—		248
Farmland		4,154		179,803		107		184,064		200		418		—		618
Commercial		28,697		900,919		667		930,283		1,636		7,557		—		9,193
Factored receivables		3,742		393,403		—		397,145		484		4,009		—		4,493
Consumer		429		28,815		—		29,244		112		607		—		719
Mortgage warehouse		—		285,388		—		285,388		—		285		—		285
	$	40,374	$	2,818,098	$	15,513	$	2,873,985	$	2,717	$	17,305	$	—	$	20,022

(Dollars in thousands)	Loan Evaluation								ALLL Allocations
December 31, 2017	Individually		Collectively		PCI		Total loans		Individually		Collectively		PCI		Total ALLL
Commercial real estate	$	1,013	$	735,118	$	9,762	$	745,893	$	123	$	3,312	$	—	$	3,435
Construction, land development, land		136		130,732		3,944		134,812		—		883		—		883
1-4 family residential properties		2,638		122,093		1,096		125,827		152		141		—		293
Farmland		3,800		176,232		109		180,141		—		310		—		310
Commercial		26,616		893,509		687		920,812		1,409		6,741		—		8,150
Factored receivables		4,726		369,684		—		374,410		949		3,648		—		4,597
Consumer		384		30,747		—		31,131		80		703		—		783
Mortgage warehouse		—		297,830		—		297,830		—		297		—		297
	$	39,313	$	2,755,945	$	15,598	$	2,810,856	$	2,713	$	16,035	$	—	$	18,748

The following is a summary of information pertaining to impaired loans. PCI loans that have not deteriorated subsequent to acquisition are not considered impaired and therefore do not require an allowance and are excluded from these tables.

	Impaired Loans and Purchased Credit						Impaired Loans
	Impaired Loans With a Valuation Allowance						Without a Valuation Allowance
(Dollars in thousands)	Recorded		Unpaid		Related		Recorded		Unpaid
March 31, 2018	Investment		Principal		Allowance		Investment		Principal
Commercial real estate	$	157	$	157	$	123	$	724	$	741
Construction, land development, land		88		88		21		51		51
1-4 family residential properties		362		374		141		1,970		2,075
Farmland		1,114		1,100		200		3,040		3,342
Commercial		17,065		17,167		1,636		11,632		11,707
Factored receivables		3,742		3,742		484		—		—
Consumer		367		354		112		62		37
Mortgage warehouse		—		—		—		—		—
PCI		—		—		—		—		—
	$	22,895	$	22,982	$	2,717	$	17,479	$	17,953

	Impaired Loans and Purchased Credit						Impaired Loans
	Impaired Loans With a Valuation Allowance						Without a Valuation Allowance
(Dollars in thousands)	Recorded		Unpaid		Related		Recorded		Unpaid
December 31, 2017	Investment		Principal		Allowance		Investment		Principal
Commercial real estate	$	165	$	165	$	123	$	848	$	881
Construction, land development, land		—		—		—		136		136
1-4 family residential properties		237		235		152		2,401		2,519
Farmland		—		—		—		3,800		4,071
Commercial		9,194		9,191		1,409		17,422		17,605
Factored receivables		4,726		4,726		949		—		—
Consumer		271		267		80		113		115
Mortgage warehouse		—		—		—		—		—
PCI		—		—		—		—		—
	$	14,593	$	14,584	$	2,713	$	24,720	$	25,327

The following table presents average impaired loans and interest recognized on impaired loans for the three months ended March 31, 2018 and 2017:

	Three Months Ended				Three Months Ended
	March 31, 2018				March 31, 2017
	Average		Interest		Average		Interest
(Dollars in thousands)	Impaired Loans		Recognized		Impaired Loans		Recognized
Commercial real estate	$	947	$	—	$	1,090	$	—
Construction, land development, land		137		—		389		—
1-4 family residential properties		2,485		2		1,180		1
Farmland		3,977		7		2,127		9
Commercial		27,657		490		29,096		122
Factored receivables		4,234		—		3,452		—
Consumer		406		1		103		—
Mortgage warehouse		—		—		—		—
PCI		—		—		1,613		—
	$	39,843	$	500	$	39,050	$	132

Past Due and Nonaccrual Loans

The following is a summary of contractually past due and nonaccrual loans at March 31, 2018 and December 31, 2017:

	Past Due		Past Due 90
(Dollars in thousands)	30-89 Days		Days or More
March 31, 2018	Still Accruing		Still Accruing		Nonaccrual		Total
Commercial real estate	$	5,925	$	—	$	881	$	6,806
Construction, land development, land		—		—		139		139
1-4 family residential properties		1,260		—		2,255		3,515
Farmland		1,161		—		3,385		4,546
Commercial		6,300		—		25,172		31,472
Factored receivables		17,823		1,468		—		19,291
Consumer		615		—		404		1,019
Mortgage warehouse		165		—		—		165
PCI		—		—		2,335		2,335
	$	33,249	$	1,468	$	34,571	$	69,288

	Past Due		Past Due 90
(Dollars in thousands)	30-89 Days		Days or More
December 31, 2017	Still Accruing		Still Accruing		Nonaccrual		Total
Commercial real estate	$	1,374	$	—	$	1,012	$	2,386
Construction, land development, land		—		—		136		136
1-4 family residential properties		1,378		62		2,625		4,065
Farmland		250		109		3,412		3,771
Commercial		6,630		39		22,247		28,916
Factored receivables		20,858		1,454		—		22,312
Consumer		947		—		384		1,331
Mortgage warehouse		165		—		—		165
PCI		72		—		2,333		2,405
	$	31,674	$	1,664	$	32,149	$	65,487

The following table presents information regarding nonperforming loans at the dates indicated:

(Dollars in thousands)	March 31, 2018		December 31, 2017
Nonaccrual loans⁽¹⁾	$	34,571	$	32,149
Factored receivables greater than 90 days past due		1,468		1,454
Troubled debt restructurings accruing interest		4,396		5,128
	$	40,435	$	38,731

⁽¹⁾

Includes troubled debt restructurings of $7,648,000 and $14,009,000 at March 31, 2018 and December 31, 2017, respectively.

Credit Quality Information

The Company categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt, including: current collateral and financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. The Company analyzes loans individually by classifying the loans as to credit risk on a regular basis. Large groups of smaller balance homogeneous loans, such as consumer loans, are analyzed primarily based on payment status. The Company uses the following definitions for risk ratings:

Pass:

Loans classified as pass are loans with low to average risk and not otherwise classified as substandard or doubtful.

Substandard:

Loans classified as substandard are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the repayment of the debt. They are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected.

Doubtful:

Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable.

PCI:

At acquisition, PCI loans had the characteristics of substandard loans and it was probable, at acquisition, that all contractually required principal and interest payments would not be collected. The Company evaluates these loans on a projected cash flow basis with this evaluation performed quarterly.

As of March 31, 2018 and December 31, 2017, based on the most recent analysis performed, the risk category of loans is as follows:

(Dollars in thousands)
March 31, 2018	Pass		Substandard		Doubtful		PCI		Total
Commercial real estate	$	766,811	$	4,446	$	—	$	9,749	$	781,006
Construction, land development, land		139,824		139		—		3,913		143,876
1-4 family residential		119,505		2,397		—		1,077		122,979
Farmland		178,052		5,905		—		107		184,064
Commercial		887,738		41,878		—		667		930,283
Factored receivables		393,959		2,477		709		—		397,145
Consumer		28,841		403		—		—		29,244
Mortgage warehouse		285,388		—		—		—		285,388
	$	2,800,118	$	57,645	$	709	$	15,513	$	2,873,985

(Dollars in thousands)
December 31, 2017	Pass		Substandard		Doubtful		PCI		Total
Commercial real estate	$	732,175	$	3,956	$	—	$	9,762	$	745,893
Construction, land development, land		130,732		136		—		3,944		134,812
1-4 family residential		122,044		2,687		—		1,096		125,827
Farmland		171,017		9,015		—		109		180,141
Commercial		878,957		41,168		—		687		920,812
Factored receivables		370,839		2,325		1,246		—		374,410
Consumer		30,739		392		—		—		31,131
Mortgage warehouse		297,830		—		—		—		297,830
	$	2,734,333	$	59,679	$	1,246	$	15,598	$	2,810,856

Troubled Debt Restructurings

The Company had a recorded investment in troubled debt restructurings of $12,044,000 and $19,137,000 as of March 31, 2018 and December 31, 2017, respectively. The Company had allocated specific allowances for these loans of $574,000 and $535,000 at March 31, 2018 and December 31, 2017, respectively, and had not committed to lend additional amounts. Troubled debt restructurings are the result of extending amortization periods, reducing contractual interest rates, or a combination thereof. The Company did not grant principal reductions on any restructured loans.

The following table presents loans modified as troubled debt restructurings that occurred during the three months ended March 31, 2018 and 2017:

			Pre-Modification		Post-Modification
			Outstanding		Outstanding
(Dollars in thousands)	Number of		Recorded		Recorded
March 31, 2018	Loans		Investment		Investment
Commercial		2	$	75	$	75
1-4 family residential properties		3	$	110	$	110
		5	$	185	$	185

Pre-Modification

Post-Modification

Outstanding

(Dollars in thousands)

Number of

Recorded

March 31, 2017

Loans

Investment

Commercial

186

During the three months ended March 31, 2018, the Company had one loan modified as a troubled debt restructuring with a recorded investment of $156,000 for which there was a payment default within twelve months following the modification. During the three months ended March 31, 2017, the Company had three loans modified as troubled debt restructurings with a recorded investment of $2,987,000 for which there were payment defaults within twelve months following the modification. The full recorded investment in one of these loans of $2,702,000 was charged off during the period. Default is determined at 90 or more days past due.

Residential Real Estate Loans In Process of Foreclosure

At March 31, 2018, the Company had $316,000 in 1-4 family residential real estate loans for which formal foreclosure proceedings were in process.

Purchased Credit Impaired Loans

The Company has loans that were acquired, for which there was, at acquisition, evidence of deterioration of credit quality since origination and for which it was probable, at acquisition, that all contractually required payments would not be collected. The outstanding contractually required principal and interest and the carrying amount of these loans included in the balance sheet amounts of loans at March 31, 2018 and December 31, 2017, are as follows:

	March 31,		December 31,
	2018		2017
Contractually required principal and interest:
Real estate loans	$	16,150	$	16,360
Commercial loans		3,353		3,501
Outstanding contractually required principal and interest	$	19,503	$	19,861
Gross carrying amount included in loans receivable	$	15,513	$	15,598

The changes in accretable yield during the three months ended March 31, 2018 and 2017 in regard to loans transferred at acquisition for which it was probable that all contractually required payments would not be collected are as follows:

	Three Months Ended March 31,
	2018			2017
Accretable yield, beginning balance	$	2,793		$	4,261
Additions		—			—
Accretion		(384	)		(472	)
Reclassification from nonaccretable to accretable yield		33			83
Disposals		—			(440	)
Accretable yield, ending balance	$	2,442		$	3,432

- Definition

The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses.

+ References + Details

Goodwill and Intangible Assets

3 Months Ended

Mar. 31, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

NOTE 5 - GOODWILL AND INTANGIBLE ASSETS

Goodwill and intangible assets consist of the following:

(Dollars in thousands)		March 31, 2018				December 31, 2017
Goodwill		$	45,373			$	44,126

	March 31, 2018							December 31, 2017
	Gross Carrying		Accumulated			Net Carrying		Gross Carrying		Accumulated			Net Carrying
(Dollars in thousands)	Amount		Amortization			Amount		Amount		Amortization			Amount
Core deposit intangibles	$	29,511	$	(12,397	)	$	17,114	$	29,511	$	(11,335	)	$	18,176
Other intangible assets		1,779		(343	)		1,436		1,764		(288	)		1,476
	$	31,290	$	(12,740	)	$	18,550	$	31,275	$	(11,623	)	$	19,652

The changes in goodwill and intangible assets during the three months ended March 31, 2018 and 2017 are as follows:

	Three Months Ended March 31,
(Dollars in thousands)	2018			2017
Beginning balance	$	63,778		$	46,531
Acquired goodwill, measurement period adjustment		1,680			—
Acquired intangibles		15			152
Divestiture		(433	)		(1,339	)
Amortization of intangibles		(1,117	)		(1,111	)
Ending balance	$	63,923		$	44,233

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

Variable Interest Entities

3 Months Ended

Mar. 31, 2018

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Variable Interest Entities

NOTE 6 – Variable Interest Entities

Collateralized Loan Obligation Funds – Closed

The Company, through its subsidiary Triumph Capital Advisors, acted as the asset manager or provided certain middle and back office staffing and services to the asset manager of various CLO funds. TCA earned asset management fees in accordance with the terms of its asset management or staffing and services agreements associated with the CLO funds. TCA earned asset management fees totaling $1,717,000 for the three months ended March 31, 2017. On March 31, 2017 the Company sold its membership interests in TCA as discussed in Note 2 – Business Combinations and Divestitures. As a result of the TCA sale, as of March 31, 2017 the Company no longer acted as asset manager or staffing and services provider for any CLO funds.

The Company holds investments in the subordinated notes of the following closed CLO funds:

	Offering	Offering
(Dollars in thousands)	Date	Amount
Trinitas CLO IV, LTD (Trinitas IV)	June 2, 2016	$	406,650
Trinitas CLO V, LTD (Trinitas V)	September 22, 2016	$	409,000
Trinitas CLO VI, LTD (Trinitas VI)	June 20, 2017	$	717,100

The carrying amounts of the Company’s investments in the subordinated notes of the CLO funds, which represent the Company’s maximum exposure to loss as a result of its involvement with the CLO funds, totaled $8,614,000 and $8,557,000 at March 31, 2018 and December 31, 2017, respectively, and are classified as held to maturity securities within the Company’s consolidated balance sheets.

The Company performed a consolidation analysis to confirm whether the Company was required to consolidate the assets, liabilities, equity or operations of the closed CLO funds in its financial statements. The Company concluded that the closed CLO funds were variable interest entities and that the Company holds variable interests in the entities in the form of its investments in the subordinated notes of entities. However, the Company also concluded that the Company does not have the power to direct the activities that most significantly impact the entities’ economic performance. As a result, the Company was not the primary beneficiary and therefore was not required to consolidate the assets, liabilities, equity, or operations of the closed CLO funds in the Company’s financial statements.

Collateralized Loan Obligation Funds – Warehouse Phase

From time to time, the Company may invest in the subordinated debt of entities formed to be the issuers of CLO offerings during their warehouse phases. The Company’s investments in these CLO funds are repaid when the CLO funds’ warehouse phases are closed and the CLO offerings are issued. The Company’s maximum exposure to loss as a result of its involvement with these CLO funds is limited to the carrying amount of its investments in the subordinated debt of the CLO funds. The Company did not hold any investments in the subordinated debt of CLO funds during their warehouse phase at December 31, 2017 or during the three months ended March 31, 2018. Income from the Company’s investments in CLO warehouse entities totaled $964,000 during the three months ended March 31, 2017, which is included in other noninterest income within the Company’s consolidated statements of income.

The Company performed a consolidation analysis of CLO funds during their warehouse phases and concluded that the CLO funds were variable interest entities and that the Company held a variable interest in the entities that could potentially be significant to the entities in the form of its investments in the subordinated notes of the entities. However, the Company also concluded that the Company does not have the power to direct the activities that most significantly impact the entities’ economic performance. As a result, the Company is not the primary beneficiary and therefore is not required to consolidate the assets, liabilities, equity, or operations of the entities in the Company’s financial statements.

Deposits

3 Months Ended

Mar. 31, 2018

Deposits [Abstract]

Deposits

NOTE 7 - Deposits

Deposits at March 31, 2018 and December 31, 2017 are summarized as follows:

(Dollars in thousands)	March 31, 2018		December 31, 2017
Noninterest bearing demand	$	548,991	$	564,225
Interest bearing demand		392,947		403,244
Individual retirement accounts		105,558		108,505
Money market		283,354		283,969
Savings		244,103		235,296
Certificates of deposit		783,651		837,384
Brokered deposits		174,894		188,725
Total Deposits	$	2,533,498	$	2,621,348

At March 31, 2018, scheduled maturities of certificates of deposit, individual retirement accounts and brokered deposits are as follows:

(Dollars in thousands)	March 31, 2018
Within one year	$	789,585
After one but within two years		180,772
After two but within three years		43,229
After three but within four years		31,137
After four but within five years		19,380
After five years		—
Total	$	1,064,103

Time deposits, including individual retirement accounts, certificates of deposit, and brokered deposits, with individual balances of $250,000 and greater totaled $144,874,000 and $158,197,000 at March 31, 2018 and December 31, 2017, respectively.

Legal Contingencies	3 Months Ended
Legal Contingencies	Mar. 31, 2018
Commitments And Contingencies Disclosure [Abstract]
Legal Contingencies	NOTE 8 - Legal Contingencies Various legal claims have arisen from time to time in the normal course of business which, in the opinion of management, do not have a material effect on the Company’s consolidated financial statements.

Off-Balance Sheet Loan Commitments

3 Months Ended

Mar. 31, 2018

Commitments And Contingencies Disclosure [Abstract]

Off-Balance Sheet Loan Commitments

NOTE 9 - OFF-BALANCE SHEET LOAN COMMITMENTS

From time to time, the Company is a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit. Those instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the balance sheet. The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit and standby letters of credit is represented by the contractual amount of those instruments.

The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet financial instruments.

The contractual amounts of financial instruments with off-balance sheet risk were as follows:

	March 31, 2018				December 31, 2017
(Dollars in thousands)	Fixed Rate		Variable Rate		Fixed Rate		Variable Rate
Unused lines of credit	$	117,111	$	247,753	$	133,634	$	242,236
Standby letters of credit		2,486		8,180		1,998		8,169
Mortgage warehouse commitments		28,530		293,325		9,411		230,221

Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being fully drawn upon, the total commitment amounts disclosed above do not necessarily represent future cash requirements. The Company evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if considered necessary by the Company, upon extension of credit, is based on management’s credit evaluation of the customer.

Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. In the event of nonperformance by the customer, the Company has rights to the underlying collateral, which can include commercial real estate, physical plant and property, inventory, receivables, cash and marketable securities. The credit risk to the Company in issuing letters of credit is essentially the same as that involved in extending loan facilities to its customers.

Mortgage warehouse commitments are unconditionally cancellable and represent the unused capacity on mortgage warehouse facilities the Company has approved. The Company reserves the right to refuse to buy any mortgage loans offered for sale by a customer, for any reason, at the Company’s sole and absolute discretion.

The Company funds an allowance for loan and lease losses on off-balance sheet lending-related commitments through a charge to other noninterest expense on the Company’s consolidated statements of income. At March 31, 2018 and December 31, 2017, the allowance for loan and lease losses on off-balance sheet lending-related commitments totaled $369,000 and $501,000, respectively, and was included in other liabilities on the Company’s consolidated balance sheets.

In addition to the commitments above, the Company had overdraft protection available in the amounts of $2,417,000 and $2,397,000 at March 31, 2018 and December 31, 2017, respectively.

Fair Value Disclosures

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Fair Value Disclosures

NOTE 10 - Fair Value Disclosures

Fair value is the exchange price that would be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. There are three levels of inputs that may be used to measure fair values:

Level 1 – Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date.

Level 2 – Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.

Level 3 – Significant unobservable inputs that reflect a company’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.

The methods of determining the fair value of assets and liabilities presented in this note are consistent with our methodologies disclosed in Note 15 of the Company’s 2017 Form 10-K, except for the valuation of loans held for investment which was impact by the adoption of ASU 2016-01. In accordance with ASU 2016-01, the fair value of loans held for investment, excluding previously presented impaired loans measured at fair value on a non-recurring basis, is estimated using discounted cash flow analyses. The discount rates used to determine fair value use interest rate spreads that reflect factors such as liquidity, credit, and nonperformance risk of the loans. Loans are considered a Level 3 classification.

Assets measured at fair value on a recurring basis are summarized in the table below. There were no liabilities measured at fair value on a recurring basis at March 31, 2018 and December 31, 2017.

(Dollars in thousands)	Fair Value Measurements Using						Total
March 31, 2018	Level 1		Level 2		Level 3		Fair Value
Securities available for sale
U.S. Government agency obligations	$	—	$	98,735	$	—	$	98,735
U.S. Treasury notes		—		1,916		—		1,916
Mortgage-backed securities, residential		—		31,747		—		31,747
Asset backed securities		—		11,247		—		11,247
State and municipal		—		36,084		—		36,084
Corporate bonds		—		9,704		—		9,704
SBA pooled securities		—		3,483		—		3,483
	$	—	$	192,916	$	—	$	192,916
Equity securities
Mutual fund	$	4,925	$	—	$	—	$	4,925

(Dollars in thousands)	Fair Value Measurements Using						Total
December 31, 2017	Level 1		Level 2		Level 3		Fair Value
Securities available for sale
U.S. Government agency obligations	$	—	$	109,890	$	—	$	109,890
U.S. Treasury notes		—	$	1,934		—		1,934
Mortgage-backed securities, residential		—		33,663		—		33,663
Asset backed securities		—		11,845		—		11,845
State and municipal		—		74,391		—		74,391
Corporate bonds		—		15,320		—		15,320
SBA pooled securities		—		3,560		—		3,560
	$	—	$	250,603	$	—	$	250,603
Equity securities
Mutual fund	$	5,006	$	—	$	—	$	5,006

There were no transfers between levels during 2018 or 2017.

Assets measured at fair value on a non-recurring basis are summarized in the table below. There were no liabilities measured at fair value on a non-recurring basis at March 31, 2018 and December 31, 2017.

(Dollars in thousands)	Fair Value Measurements Using						Total
March 31, 2018	Level 1		Level 2		Level 3		Fair Value
Impaired loans
Commercial real estate	$	—	$	—	$	34	$	34
Construction, land development, land		—		—		67		67
1-4 family residential properties		—		—		221		221
Farmland		—		—		914		914
Commercial		—		—		15,429		15,429
Factored receivables		—		—		3,258		3,258
Consumer		—		—		255		255
Other real estate owned⁽¹⁾
Commercial		—		—		5,582		5,582
	$	—	$	—	$	25,760	$	25,760

(Dollars in thousands)	Fair Value Measurements Using						Total
December 31, 2017	Level 1		Level 2		Level 3		Fair Value
Impaired loans
Commercial real estate	$	—	$	—	$	42	$	42
1-4 family residential properties		—		—		85		85
Commercial		—		—		7,785		7,785
Factored receivables		—		—		3,777		3,777
Consumer		—		—		191		191
Other real estate owned⁽¹⁾
Commercial		—		—		138		138
Construction, land development, land		—		—		202		202
	$	—	$	—	$	12,220	$	12,220

⁽¹⁾ Represents the fair value of OREO that was adjusted during the period and subsequent to its initial classification as OREO

Impaired Loans with Specific Allocation of ALLL: A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due pursuant to the contractual terms of the loan agreement. Impairment is measured by estimating the fair value of the loan based on the present value of expected cash flows, the market price of the loan, or the underlying fair value of the loan’s collateral. For real estate loans, fair value of the impaired loan’s collateral is determined by third party appraisals, which are then adjusted for the estimated selling and closing costs related to liquidation of the collateral. For this asset class, the actual valuation methods (income, sales comparable, or cost) vary based on the status of the project or property. For example, land is generally based on the sales comparable method while construction is based on the income and/or sales comparable methods. The unobservable inputs may vary depending on the individual assets with no one of the three methods being the predominant approach. The Company reviews the third party appraisal for appropriateness and adjusts the value downward to consider selling and closing costs, which typically range from 5% to 8% of the appraised value. For non-real estate loans, fair value of the impaired loan’s collateral may be determined using an appraisal, net book value per the borrower’s financial statements, or aging reports, adjusted or discounted based on management’s historical knowledge, changes in market conditions from the time of the valuation, and management’s expertise and knowledge of the client and client’s business.

OREO: OREO is primarily comprised of real estate acquired in partial or full satisfaction of loans. OREO is recorded at its estimated fair value less estimated selling and closing costs at the date of transfer, with any excess of the related loan balance over the fair value less expected selling costs charged to the ALLL. Subsequent changes in fair value are reported as adjustments to the carrying amount and are recorded against earnings. The Company outsources the valuation of OREO with material balances to third party appraisers. For this asset class, the actual valuation methods (income, sales comparable, or cost) vary based on the status of the project or property. For example, land is generally based on the sales comparable method while construction is based on the income and/or sales comparable methods. The unobservable inputs may vary depending on the individual assets with no one of the three methods being the predominant approach. The Company reviews the third party appraisal for appropriateness and adjusts the value downward to consider selling and closing costs, which typically range from 5% to 8% of the appraised value.

The estimated fair values of the Company’s financial instruments not measured at fair value on a recurring or non-recurring basis at March 31, 2018 and December 31, 2017 were as follows:

(Dollars in thousands)	Carrying		Fair Value Measurements Using						Total
March 31, 2018	Amount		Level 1		Level 2		Level 3		Fair Value
Financial assets:
Cash and cash equivalents	$	106,046	$	106,046	$	—	$	—	$	106,046
Securities - held to maturity		8,614		—		—		8,111		8,111
Loans not previously presented, gross		2,851,090		—		—		2,838,892		2,838,892
FHLB stock		16,508	N/A		N/A		N/A		N/A
Accrued interest receivable		14,036		14,036		—		—		14,036

Financial liabilities:
Deposits		2,533,498		—		2,526,007		—		2,526,007
Customer repurchase agreements		6,751		—		6,751		—		6,751
Federal Home Loan Bank advances		355,000		—		355,000		—		355,000
Subordinated notes		48,853		—		50,980		—		50,980
Junior subordinated debentures		38,734		—		40,638		—		40,638
Accrued interest payable		2,613		2,613		—		—		2,613

(Dollars in thousands)	Carrying		Fair Value Measurements Using						Total
December 31, 2017	Amount		Level 1		Level 2		Level 3		Fair Value
Financial assets:
Cash and cash equivalents	$	134,129	$	134,129	$	—	$	—	$	134,129
Securities - held to maturity		8,557		—		—		7,527		7,527
Loans not previously presented, net		2,780,228		—		—		2,800,362		2,800,362
Loans included in assets held for sale, net		68,668		—		—		69,268		69,268
FHLB stock		16,006	N/A		N/A		N/A		N/A
Accrued interest receivable		15,517		15,517		—		—		15,517

Financial liabilities:
Deposits		2,621,348		—		2,616,034		—		2,616,034
Customer repurchase agreements		11,488		—		11,488		—		11,488
Federal Home Loan Bank advances		365,000		—		365,000		—		365,000
Subordinated notes		48,828		—		52,310		—		52,310
Junior subordinated debentures		38,623		—		41,563		—		41,563
Accrued interest payable		3,323		3,323		—		—		3,323

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Regulatory Matters

3 Months Ended

Mar. 31, 2018

Regulatory Capital Requirements [Abstract]

Regulatory Matters

NOTE 11 - Regulatory Matters

The Company (on a consolidated basis) and TBK Bank are subject to various regulatory capital requirements administered by federal and state banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s or TBK Bank’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company and TBK Bank must meet specific capital guidelines that involve quantitative measures of their assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors.

Quantitative measures established by regulation to ensure capital adequacy require the Company and TBK Bank to maintain minimum amounts and ratios (set forth in the table below) of total, common equity Tier 1, and Tier 1 capital to risk weighted assets, and of Tier 1 capital to average assets. Management believes, as of March 31, 2018 and December 31, 2017, the Company and TBK Bank meet all capital adequacy requirements to which they are subject.

As of March 31, 2018 and December 31, 2017, TBK Bank’s capital ratios exceeded those levels necessary to be categorized as “well capitalized” under the regulatory framework for prompt corrective action. To be categorized as “well capitalized,” TBK Bank must maintain minimum total risk based, common equity Tier 1 risk based, Tier 1 risk based, and Tier 1 leverage ratios as set forth in the table below. There are no conditions or events since March 31, 2018 that management believes have changed TBK Bank’s category.

The actual capital amounts and ratios for the Company and TBK Bank as of March 31, 2018 and December 31, 2017 are presented in the following table.

								To Be Well
								Capitalized Under
				Minimum for Capital				Prompt Corrective
(Dollars in thousands)	Actual			Adequacy Purposes				Action Provisions
As of March 31, 2018	Amount		Ratio	Amount		Ratio		Amount		Ratio
Total capital (to risk weighted assets)
Triumph Bancorp, Inc.	$	444,789	13.7%	$	260,439		8.0%	N/A		N/A
TBK Bank, SSB	$	372,889	11.9%	$	250,546		8.0%	$	313,183		10.0%

Tier 1 capital (to risk weighted assets)
Triumph Bancorp, Inc.	$	375,545	11.5%	$	195,330		6.0%	N/A		N/A
TBK Bank, SSB	$	352,600	11.3%	$	187,910		6.0%	$	250,546		8.0%

Common equity Tier 1 capital (to risk weighted assets)
Triumph Bancorp, Inc.	$	327,153	10.0%	$	146,497		4.5%	N/A		N/A
TBK Bank, SSB	$	352,600	11.3%	$	140,932		4.5%	$	203,569		6.5%

Tier 1 capital (to average assets)
Triumph Bancorp, Inc.	$	375,545	12.1%	$	124,559		4.0%	N/A		N/A
TBK Bank, SSB	$	352,600	10.6%	$	132,470		4.0%	$	165,588		5.0%

As of December 31, 2017
Total capital (to risk weighted assets)
Triumph Bancorp, Inc.	$	436,036	13.2%	$	264,026		8.0%	N/A		N/A
TBK Bank, SSB	$	361,068	11.4%	$	254,139		8.0%	$	317,674		10.0%

Tier 1 capital (to risk weighted assets)
Triumph Bancorp, Inc.	$	367,958	11.1%	$	198,019		6.0%	N/A		N/A
TBK Bank, SSB	$	341,910	10.8%	$	190,603		6.0%	$	254,137		8.0%

Common equity Tier 1 capital (to risk weighted assets)
Triumph Bancorp, Inc.	$	320,265	9.7%	$	148,514		4.5%	N/A		N/A
TBK Bank, SSB	$	341,910	10.8%	$	142,952		4.5%	$	206,486		6.5%

Tier 1 capital (to average assets)
Triumph Bancorp, Inc.	$	367,958	11.8%	$	124,754		4.0%	N/A		N/A
TBK Bank, SSB	$	341,910	11.1%	$	123,088		4.0%	$	153,860		5.0%

Dividends paid by banks are limited to, without prior regulatory approval, current year earnings and earnings less dividends paid during the preceding two years.

Beginning in January 2016, the implementation of the capital conservation buffer set forth by the Basel III regulatory capital framework was effective for the company starting at 0.625% of risk weighed assets above the minimum risk based capital ratio requirements and increasing 0.625% each year thereafter, until it reaches 2.5% on January 1, 2019. The capital conservation buffer was 1.875% and 1.25% at March 31, 2018 and December 31, 2017, respectively. The capital conservation buffer is designed to absorb losses during periods of economic stress and requires increased capital levels for the purpose of capital distributions and other payments. Failure to meet the full amount of the buffer will result in restrictions on the Company’s ability to make capital distributions, including dividend payments and stock repurchases, and to pay discretionary bonuses to executive officers. At March 31, 2018 and December 31, 2017, the Company’s and TBK Bank’s risk based capital exceeded the required capital conservation buffer.

- Definition

The entire disclosure for banks, savings institutions, and credit unions, for regulatory capital requirements imposed by the Federal Reserve System (FRB), the Federal Deposit Insurance Corporation (FDIC), the Office of Thrift Supervision (OTS) or for any state imposed capital requirements, as applicable. The disclosure may include (1) a description of regulatory capital requirements (a) for capital adequacy purposes and (b) established by the prompt corrective action provisions of Section 38 of the Federal Depository Insurance Act; (2) the actual or possible material effects of noncompliance with such requirements; (3) whether the entity is in compliance with the regulatory capital requirements including (a) required and actual ratios and amounts of Tier 1 leverage, Tier 1 risk-based, and total risk-based capital, tangible capital (for savings institutions), and Tier 3 capital for market risk (for certain banks and bank holding companies), (b) factors that may significantly affect capital adequacy; (4) the prompt corrective action category in which the entity was classified as of its most recent notification; (5) whether management believes any conditions or events since notification have changed the entity's category. Also may include additional information that might be disclosed in situations where substantial doubt about the entity's ability to continue as a going concern for a reasonable period of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1G
-URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958577-112826

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1C
-URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958572-112826

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1E
-URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958574-112826

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1H
-URI http://asc.fasb.org/extlink&oid=84167132&loc=d3e65071-112826

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958569-112826

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958570-112826

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1F
-URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958575-112826

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958568-112826

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1D
-URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958573-112826

+ Details

Stockholders' Equity

3 Months Ended

Mar. 31, 2018

Equity [Abstract]

Stockholders' Equity

NOTE 12 – STOCKHOLDERS’ EQUITY

The following summarizes the capital structure of Triumph Bancorp, Inc.

Common Stock

	Common Stock
	March 31, 2018			December 31, 2017
Shares authorized		50,000,000			50,000,000
Shares issued		20,918,034			20,912,396
Treasury shares		(93,525	)		(91,951	)
Shares outstanding		20,824,509			20,820,445
Par value per share	$	0.01		$	0.01

Preferred Stock

	Preferred Stock
	Series A						Series B
(Dollars in thousands, except per share amounts)	March 31, 2018			December 31, 2017			March 31, 2018			December 31, 2017
Shares authorized		50,000			50,000			115,000			115,000
Shares issued		45,500			45,500			51,076			51,076
Shares outstanding		45,500			45,500			51,076			51,076
Par value per share	$	0.01		$	0.01		$	0.01		$	0.01
Liquidation preference per share	$	100		$	100		$	100		$	100
Liquidation preference amount	$	4,550		$	4,550		$	5,108		$	5,108
Dividend rate	Prime + 2%			Prime + 2%				8.00	%		8.00	%
Dividend rate - floor		8.00	%		8.00	%	N/A			N/A
Subsequent dividend payment dates	Quarterly			Quarterly			Quarterly			Quarterly
Convertible to common stock	Yes			Yes			Yes			Yes
Conversion period	Anytime			Anytime			Anytime			Anytime
Conversion ratio - preferred to common	6.94008			6.94008			6.94008			6.94008

Stock Based Compensation

3 Months Ended

Mar. 31, 2018

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock Based Compensation

NOTE 13 – STOCK BASED COMPENSATION

Stock based compensation expense that has been charged against income was $486,000 and $702,000 for the three months ended March 31, 2018 and 2017, respectively.

2014 Omnibus Incentive Plan

The Company’s 2014 Omnibus Incentive Plan (“Omnibus Incentive Plan”) provides for the grant of nonqualified and incentive stock options, stock appreciation rights, restricted stock awards, restricted stock units, and other awards that may be settled in, or based upon the value of, the Company’s common stock. The aggregate number of shares of common stock available for issuance under the Omnibus Incentive Plan is 1,200,000 shares.

Restricted Stock Awards

A summary of changes in the Company’s nonvested Restricted Stock Awards (“RSAs”) under the Omnibus Incentive Plan for the three months ended March 31, 2018 were as follows:

				Weighted-Average
				Grant-Date
Nonvested RSAs	Shares			Fair Value
Nonvested at January 1, 2018		102,776		$	18.68
Granted		5,492			38.50
Vested		(5,492	)		38.50
Forfeited		(1,574	)		20.61
Nonvested at March 31, 2018		101,202		$	18.65

RSAs granted to employees under the Omnibus Incentive Plan typically vest over three to four years. Compensation expense for RSAs granted under the Omnibus Incentive Program will be recognized over the vesting period of the awards based on the fair value of the stock at the issue date. As of March 31, 2018, there was $572,000 of unrecognized compensation cost related to nonvested RSAs granted under the Omnibus Incentive Plan. The cost is expected to be recognized over a remaining period of 2.74 years.

Stock Options

A summary of the changes in the Company’s stock options under the Omnibus Incentive Plan as of and for the three months ended March 31, 2018 were as follows:

						Weighted-Average
						Remaining		Aggregate
				Weighted-Average		Contractual Term		Intrinsic Value
Stock Options	Shares			Exercise Price		(In Years)		(In Thousands)
Outstanding at January 1, 2018		185,328		$	18.97
Granted		—			—
Exercised		(374	)		15.87
Forfeited or expired		(3,186	)		18.98
Outstanding at March 31, 2018		181,768		$	18.98		8.32	$	4,039

Fully vested shares and shares expected to vest at March 31, 2018		181,768		$	18.98		8.32	$	4,039

Shares exercisable at March 31, 2018		31,368		$	15.87		8.01	$	795

	Three Months Ended March 31,
(Dollars in thousands, except per share amounts)	2018		2017
Aggregate intrinsic value of options exercised	$	10	$	—
Cash received from option exercises	$	—	$	—
Tax benefit realized from option exercises	$	2	$	—
Weighted average fair value of options granted	$	—	$	—

Stock options awarded to employees under the Omnibus Incentive Plan are generally granted with an exercise price equal to the market price of the Company’s common stock at the date of grant, vest over four years, and have ten year contractual terms. Contractual terms of exercisable options may be shortened due to termination of a participant’s employment. The fair value of stock options granted is estimated at the date of grant using the Black-Scholes option-pricing model. Expected volatilities are determined based on a blend of the Company’s historical volatility and historical volatilities of a peer group of companies with a similar size, industry, stage of life cycle, and capital structure. The expected term of options granted is determined based on the SEC simplified method, which calculates the expected term as the mid-point between the weighted average time to vesting and the contractual term. The risk-free interest rate for the expected term of options is derived from the Treasury constant maturity yield curve on the valuation date.

As of March 31, 2018, there was $387,000 of unrecognized compensation cost related to nonvested stock options granted under the Omnibus Incentive Plan. The cost is expected to be recognized over a remaining period of 2.62 years.

Earnings Per Share

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Earnings Per Share

NOTE 14 – EARNINGS PER SHARE

The factors used in the earnings per share computation follow:

	Three Months Ended March 31,
(Dollars in thousands)	2018		2017
Basic
Net income to common stockholders	$	11,878	$	10,281
Weighted average common shares outstanding		20,721,363		17,955,144
Basic earnings per common share	$	0.57	$	0.57
Diluted
Net income to common stockholders	$	11,878	$	10,281
Dilutive effect of preferred stock		190		192
Net income to common stockholders - diluted	$	12,068	$	10,473
Weighted average common shares outstanding		20,721,363		17,955,144
Add: Dilutive effects of restricted stock		85,045		87,094
Add: Dilutive effects of assumed exercises of stock warrants		—		145,896
Add: Dilutive effects of assumed exercises of stock options		83,872		47,873
Add: Dilutive effects of assumed conversion of Preferred A		315,773		315,773
Add: Dilutive effects of assumed conversion of Preferred B		354,471		360,578
Average shares and dilutive potential common shares		21,560,524		18,912,358
Diluted earnings per common share	$	0.56	$	0.55

There were no antidilutive shares for the three months ended March 31, 2018 and 2017.

Business Segment Information

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Business Segment Information

NOTE 15 – BUSINESS SEGMENT INFORMATION

The following table presents the Company’s operating segments. The accounting policies of the segments are substantially similar to those described in the “Summary of Significant Accounting Policies” in Note 1 of the Company’s 2017 Form 10-K. Transactions between segments consist primarily of borrowed funds. Intersegment interest expense is allocated to the Factoring segment based on the Company’s prime rate. The provision for loan loss is allocated based on the segment’s allowance for loan loss determination. Noninterest income and expense directly attributable to a segment are assigned to it. Taxes are paid on a consolidated basis but not allocated for segment purposes. The Factoring segment includes only factoring originated by TBC. General factoring services not originated through TBC are included in the Banking segment. On March 31, 2017, the Company sold its 100% membership interest in Triumph Capital Advisors, LLC (“TCA”) and discontinued fee based asset management services. TCA operations were not material during the year ended December 31, 2017 and are reflected in the Corporate segment, along with the gain on sale of the Company’s membership interest in TCA.

(Dollars in thousands)
Three Months Ended March 31, 2018	Banking		Factoring			Corporate			Consolidated
Total interest income	$	38,905	$	14,780		$	433		$	54,118
Intersegment interest allocations		2,932		(2,932	)		—			—
Total interest expense		5,554		—			1,434			6,988
Net interest income (expense)		36,283		11,848			(1,001	)		47,130
Provision for loan losses		2,144		393			11			2,548
Net interest income after provision		34,139		11,455			(1,012	)		44,582
Gain on sale of subsidiary or division		1,071		—			—			1,071
Other noninterest income		3,588		590			(77	)		4,101
Noninterest expense		26,538		6,854			650			34,042
Operating income (loss)	$	12,260	$	5,191		$	(1,739	)	$	15,712

(Dollars in thousands)
Three Months Ended March 31, 2017	Banking		Factoring			Corporate			Consolidated
Total interest income	$	27,499	$	8,705		$	128		$	36,332
Intersegment interest allocations		1,289		(1,289	)		—			—
Total interest expense		3,214		—			1,299			4,513
Net interest income (expense)		25,574		7,416			(1,171	)		31,819
Provision for loan losses		7,021		582			75			7,678
Net interest income after provision		18,553		6,834			(1,246	)		24,141
Gain on sale of subsidiary or division		—		—			20,860			20,860
Other noninterest income		3,531		670			2,224			6,425
Noninterest expense		21,969		5,595			7,273			34,837
Operating income (loss)	$	115	$	1,909		$	14,565		$	16,589

(Dollars in thousands)
March 31, 2018	Banking		Factoring		Corporate		Eliminations			Consolidated
Total assets	$	3,346,394	$	386,610	$	514,144	$	(842,138	)	$	3,405,010
Gross loans	$	2,766,383	$	372,771	$	11,582	$	(276,751	)	$	2,873,985

(Dollars in thousands)
December 31, 2017	Banking		Factoring		Corporate		Eliminations			Consolidated
Total assets	$	3,444,322	$	360,922	$	504,656	$	(810,867	)	$	3,499,033
Gross loans	$	2,784,147	$	346,293	$	11,936	$	(331,520	)	$	2,810,856

Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	NOTE 16 – SUBSEQUENT EVENTS On April 9, 2018 the Company entered into agreements to acquire (i) First Bancorp of Durango, Inc. and its community banking subsidiaries, First National Bank of Durango and Bank of New Mexico and (ii) Southern Colorado Corp. and its community banking subsidiary, Citizens Bank of Pagosa Springs. At December 31, 2017, First Bancorp of Durango, Inc. had $646,000,000 in assets, including $271,000,000 in loans, and $574,000,000 in deposits, and Southern Colorado Corp. had $88,000,000 in assets, including $37,000,000 in loans, and $79,000,000 in deposits. On April 9, 2018 the Company entered into an agreement to acquire the transportation factoring assets of Interstate Capital Corporation. At December 31, 2017, Interstate Capital Corporation had $112,000,000 in gross factored receivables. On April 12, 2018 the Company completed a public offering of 5,405,000 shares of the Company’s common stock, including 705,000 shares sold pursuant to the underwriters’ full exercise of their option to purchase additional shares, at $37.50 per share for total gross proceeds of $202,688,000. Net proceeds from the offering, after deducting the underwriting discount and offering expenses, were approximately $192,100,000.

Summary of Significant Accounting Policies (Policies)	3 Months Ended
Summary of Significant Accounting Policies (Policies)	Mar. 31, 2018
Accounting Policies [Abstract]
Nature of Operations	Nature of Operations Triumph Bancorp, Inc. (collectively with its subsidiaries, “Triumph”, or the “Company” as applicable) is a financial holding company headquartered in Dallas, Texas. The accompanying consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries Triumph CRA Holdings, LLC (“TCRA”), TBK Bank, SSB (“TBK Bank”), TBK Bank’s wholly owned subsidiary Advance Business Capital LLC, which currently operates under the d/b/a of Triumph Business Capital (“TBC”), and TBK Bank’s wholly owned subsidiary Triumph Insurance Group, Inc. (“TIG”). On March 16, 2018, the Company sold the assets of Triumph Healthcare Finance (“THF”) and exited its healthcare asset-based lending line of business. THF operated within the Company’s TBK Bank subsidiary. See Note 2 – Business Combinations and Divestitures for details of the THF sale and its impact on our consolidated financial statements. On March 31, 2017 the Company sold its membership interests in its wholly owned subsidiary Triumph Capital Advisors, LLC (“TCA”). See Note 2 – Business Combinations and Divestitures for details of the TCA sale and its impact on our consolidated financial statements.
Principles of Consolidation and Basis of Presentation	Principles of Consolidation and Basis of Presentation The accompanying unaudited condensed consolidated financial statements of the Company have been prepared in accordance with United States Generally Accepted Accounting Principles (“GAAP”) for interim financial information and in accordance with guidance provided by the Securities and Exchange Commission. Accordingly, the condensed financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates. In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all normal and recurring adjustments considered necessary for a fair presentation. Transactions between the subsidiaries have been eliminated. These condensed consolidated financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2017. Operating results for the three months ended March 31, 2018 are not necessarily indicative of the results that may be expected for the year ending December 31, 2018. The Company has three reportable segments consisting of Banking, Factoring, and Corporate. The Company’s Chief Executive Officer uses segment results to make operating and strategic decisions.
Revenue from Contracts with Customers	Revenue from Contracts with Customers The Company records revenue from contracts with customers in accordance with Accounting Standards Codification Topic 606, “Revenue from Contracts with Customers” (“Topic 606”). Under Topic 606, the Company must identify the contract with a customer, identify the performance obligations in the contract, determine the transaction price, allocate the transaction price to the performance obligations in the contract, and recognize revenue when (or as) the Company satisfies a performance obligation. Significant revenue has not been recognized in the current reporting period that results from performance obligations satisfied in previous periods. The Company’s primary sources of revenue are derived from interest and dividends earned on loans, investment securities, and other financial instruments that are not within the scope of Topic 606. The Company has evaluated the nature of its contracts with customers and determined that further disaggregation of revenue from contracts with customers into more granular categories beyond what is presented in the Consolidated Statements of Income was not necessary. The Company generally fully satisfies its performance obligations on its contracts with customers as services are rendered and the transaction prices are typically fixed; charged either on a periodic basis or based on activity. Because performance obligations are satisfied as services are rendered and the transaction prices are fixed, there is little judgment involved in applying Topic 606 that significantly affects the determination of the amount and timing of revenue from contracts with customers.
Income Taxes	Income Taxes On December 22, 2017, the United States enacted tax reform legislation commonly known as the Tax Cuts and Jobs Act (the “Tax Act”), resulting in significant modifications to existing law. Authoritative guidance and interpretation by regulatory bodies is ongoing, and as such, the accounting for the effects of the Tax Act is not final and the full impact of the new regulation is still being evaluated.
Adoption of New Accounting Standards	Adoption of New Accounting Standards In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, “Revenue from Contracts with Customers” (“ASU 2014-09”), which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The ASU replaces most existing revenue recognition guidance in GAAP. The new standard was effective for the Company on January 1, 2018. Adoption of ASU 2014-09 did not have a material impact on the Company’s consolidated financial statements and related disclosures as the Company’s primary sources of revenues are derived from interest and dividends earned on loans, investment securities, and other financial instruments that are not within the scope of ASU 2014-09. The Company’s revenue recognition pattern for revenue streams within the scope of ASU 2014-09, including but not limited to service charges on deposit accounts and gains/losses on the sale of OREO, did not change significantly from current practice. The standard permits the use of either the full retrospective or modified retrospective transition method. The Company elected to use the modified retrospective transition method which requires application of ASU 2014-09 to uncompleted contracts at the date of adoption however, periods prior to the date of adoption will not be retrospectively revised as the impact of the ASU on uncompleted contracts at the date of adoption was not material. In January 2016, the FASB issued ASU No. 2016-01, “Financial Instruments – Overall: Recognition and Measurement of Financial Assets and Financial Liabilities” (“ASU 2016-01”). The guidance affects the accounting for equity investments, financial liabilities under the fair value option and the presentation and disclosure requirements of financial instruments. ASU 2016-01 was effective for the Company on January 1, 2018 and resulted in separate classification of equity securities previously included in available for sale securities on the consolidated balance sheets with changes in the fair value of the equity securities captured in the consolidated statements of income. See Note 3 – Securities for disclosures related to equity securities. Adoption of the standard also resulted in the use of an exit price rather than an entrance price to determine the fair value of loans not measured at fair value on a non-recurring basis in the consolidated balance sheets. See Note 10 – Fair Value Disclosures for further information regarding the valuation of these loans. In January 2017, the FASB issued ASU 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business,” (“ASU 2017-01”) to improve such definition and, as a result, assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or as business combinations. The definition of a business impacts many areas of accounting including acquisitions, disposals, goodwill and consolidation. ASU 2017-01 was effective for the Company on January 1, 2018 and is to be applied under a prospective approach. The Company expects the adoption of this new guidance to impact the determination of whether future acquisitions are considered business combinations.
Newly Issued But Not Yet Effective Accounting Standards	Newly Issued, But Not Yet Effective Accounting Standards In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842)” (“ASU 2016-02”). The FASB issued this ASU to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet by lessees for those leases classified as operating leases under current U.S. GAAP and disclosing key information about leasing arrangements. The amendments in this ASU are effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2018. Early application of this ASU is permitted for all entities. Adoption of ASU 2016-02 is not expected to have a material impact on the Company’s consolidated financial statements. The Company leases certain properties and equipment under operating leases that will result in the recognition of lease assets and lease liabilities on the Company’s balance sheet under the ASU, however, the majority of the Company’s properties and equipment are owned, not leased. At March 31, 2018, the Company had contractual operating lease commitments of approximately $10,222,000, before considering renewal options that are generally present. In June 2016, the FASB issued ASU 2016-13, “Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”). Among other things, ASU 2016-13 requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Financial institutions and other organizations will now use forward-looking information to form their credit loss estimates. Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. In addition, ASU 2016-13 amends the accounting for credit losses on debt securities and purchased financial assets with credit deterioration. The amendments in ASU 2016-13 are effective for fiscal years beginning after December 31, 2019, and interim periods within those years for public business entities that are SEC filers. Early adoption is permitted for fiscal years, and interim periods within those years, beginning after December 15, 2018, however, the Company does not currently plan to early adopt the ASU. The Company has formed a cross functional team that is assessing the Company’s data and system needs and evaluating the impact that adoption of this standard will have on the financial condition and results of operations of the Company.

- Definition

Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.

+ References + Details

Business Combinations and Divestitures (Tables)

3 Months Ended

Mar. 31, 2018

Valley Bancorp, Inc.

Business Acquisition [Line Items]

Summary of Fair Values of the Identifiable Assets Acquired and Liabilities Assumed

A summary of the estimated fair values of assets acquired, liabilities assumed, consideration transferred, and the resulting goodwill is as follows:

	Initial Values		Measurement
	Recorded at		Period			Adjusted
(Dollars in thousands)	Acquisition Date		Adjustments			Values
Assets acquired:
Cash and cash equivalents	$	38,473	$	—		$	38,473
Securities		97,687		—			97,687
Loans		171,199		—			171,199
FHLB stock		315		—			315
Premises and equipment		6,238		—			6,238
Other real estate owned		2,282		—			2,282
Intangible assets		6,072		—			6,072
Bank-owned life insurance		7,153		—			7,153
Other assets		1,882		—			1,882
		331,301		—			331,301
Liabilities assumed:
Deposits		293,398		—			293,398
Junior subordinated debentures		5,470		—			5,470
Other liabilities		2,881		1,680			4,561
		301,749		1,680			303,429
Fair value of net assets acquired		29,552		(1,680	)		27,872
Consideration transferred		40,075		—			40,075
Goodwill	$	10,523	$	1,680		$	12,203

Summary of Acquired Loans

	Loans,
	Excluding		PCI		Total
(Dollars in thousands)	PCI Loans		Loans		Loans
Commercial real estate	$	73,273	$	254	$	73,527
Construction, land development, land		19,770		1,199		20,969
1-4 family residential properties		26,264		—		26,264
Farmland		16,934		—		16,934
Commercial		31,893		—		31,893
Factored receivables		—		—		—
Consumer		1,612		—		1,612
Mortgage warehouse		—		—		—
	$	169,746	$	1,453	$	171,199

Independent Bank - Colorado Branches

Business Acquisition [Line Items]

Summary of Fair Values of the Identifiable Assets Acquired and Liabilities Assumed

A summary of the estimated fair values of assets acquired, liabilities assumed, consideration transferred, and the resulting goodwill is as follows:

(Dollars in thousands)
Assets acquired:
Cash and cash equivalents	$	1,611
Loans		95,794
Premises and equipment		7,524
Intangible assets		3,255
Other assets		1,644
		109,828
Liabilities assumed:
Deposits		160,702
Other liabilities		249
		160,951
Fair value of net assets acquired		(51,123	)
Cash received from seller, net of $6,771 deposit premium		45,306
Goodwill	$	5,817

Summary of Acquired Loans

The following table presents details of the estimated fair value of acquired loans at the acquisition date:

(Dollars in thousands)
Commercial real estate	$	13,382
Construction, land development, land		537
1-4 family residential properties		6,986
Farmland		31,490
Commercial		43,104
Factored receivables		—
Consumer		295
Mortgage warehouse		—
	$	95,794

Triumph Healthcare Finance

Business Acquisition [Line Items]

Summary of Assets Held for Sale and Consideration Received and Gain on Sale

A summary of the carrying amount of the assets in the Disposal Group and the gain on sale is as follows:

(Dollars in thousands)
Carrying amount of assets in the disposal group:
Loans	$	70,147
Premises and equipment, net		19
Goodwill		1,457
Intangible assets, net		958
Other assets		197
Total carrying amount		72,778
Total consideration received		74,017
Gain on sale of division		1,239
Transaction costs		168
Gain on sale of division, net of transaction costs	$	1,071

Triumph Capital Advisors, LLC

Business Acquisition [Line Items]

Summary of Assets Held for Sale and Consideration Received and Gain on Sale

A summary of the consideration received and the gain on sale is as follows:

(Dollars in thousands)
Consideration received (fair value):
Cash	$	10,554
Loan receivable		10,500
Revenue share		1,623
Total consideration received		22,677
Carrying value of TCA membership interest		1,417
Gain on sale of subsidiary		21,260
Transaction costs		400
Gain on sale of subsidiary, net of transaction costs	$	20,860

- Definition

Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=65878427&loc=SL51721533-107759

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 4B
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721665-107760

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1474-107760

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1361-107760

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721683-107760

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3A
-URI http://asc.fasb.org/extlink&oid=84176398&loc=SL51724579-110230

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5C
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721675-107760

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 4A
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721663-107760

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=84176398&loc=d3e2941-110230

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5B
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721673-107760

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 3A
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721659-107760

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5A
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721671-107760

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5D
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721677-107760

+ Details

Securities (Tables)

3 Months Ended

Mar. 31, 2018

Schedule Of Debt Securities [Line Items]

Schedule of Amortized Cost and Estimated Fair Value of Debt Securities by Contractual Maturity

	Available for Sale Securities				Held to Maturity Securities
	Amortized		Fair		Amortized		Fair
(Dollars in thousands)	Cost		Value		Cost		Value
Due in one year or less	$	13,901	$	13,874	$	—	$	—
Due from one year to five years		103,224		101,922		—		—
Due from five years to ten years		18,622		18,198		—		—
Due after ten years		12,632		12,445		8,614		8,111
		148,379		146,439		8,614		8,111
Mortgage-backed securities, residential		31,965		31,747		—		—
Asset backed securities		11,292		11,247		—		—
SBA pooled securities		3,494		3,483		—		—
	$	195,130	$	192,916	$	8,614	$	8,111

Schedule of Proceeds from Sales of Debt Securities and the Associated Gross Gains and Losses

Proceeds from sales of debt securities and the associated gross gains and losses for the three months ended March 31, 2018 and 2017 are as follows:

	Three Months Ended March 31,
(Dollars in thousands)	2018			2017
Proceeds	$	34,196		$	—
Gross gains	$	5		$	—
Gross losses	$	(277	)	$	—

Schedule of Information Pertaining to Debt Securities with Gross Unrealized and Unrecognized Losses

	Less than 12 Months					12 Months or More					Total
(Dollars in thousands)	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
March 31, 2018	Value		Losses			Value		Losses			Value		Losses
Available for sale securities:
U.S. Government agency obligations	$	59,525	$	(521	)	$	34,271	$	(636	)	$	93,796	$	(1,157	)
U.S. Treasury notes		1,916		(28	)		—		—			1,916		(28	)
Mortgage-backed securities, residential		12,473		(202	)		6,023		(243	)		18,496		(445	)
Asset backed securities		—		—			4,901		(91	)		4,901		(91	)
State and municipal		27,000		(541	)		8,058		(188	)		35,058		(729	)
Corporate bonds		6,142		(76	)		373		(2	)		6,515		(78	)
SBA pooled securities		2,563		(15	)		—		—			2,563		(15	)
	$	109,619	$	(1,383	)	$	53,626	$	(1,160	)	$	163,245	$	(2,543	)

	Less than 12 Months					12 Months or More					Total
(Dollars in thousands)	Fair		Unrecognized			Fair		Unrecognized			Fair		Unrecognized
March 31, 2018	Value		Losses			Value		Losses			Value		Losses
Held to maturity securities:
CLO securities	$	1,701	$	(152	)	$	6,410	$	(351	)	$	8,111	$	(503	)

	Less than 12 Months					12 Months or More					Total
(Dollars in thousands)	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
December 31, 2017	Value		Losses			Value		Losses			Value		Losses
Available for sale securities:
U.S. Government agency obligations	$	47,605	$	(166	)	$	40,053	$	(551	)	$	87,658	$	(717	)
U.S. Treasury notes		1,934		(6	)		—		—			1,934		(6	)
Mortgage-backed securities, residential		10,349		(21	)		6,200		(159	)		16,549		(180	)
Asset backed securities		4,898		(85	)		—		—			4,898		(85	)
State and municipal		32,257		(216	)		12,138		(227	)		44,395		(443	)
Corporate bonds		4,073		(2	)		149		(1	)		4,222		(3	)
SBA pooled securities		1,654		(2	)		—		—			1,654		(2	)
	$	102,770	$	(498	)	$	58,540	$	(938	)	$	161,310	$	(1,436	)

	Less than 12 Months					12 Months or More					Total
(Dollars in thousands)	Fair		Unrecognized			Fair		Unrecognized			Fair		Unrecognized
December 31, 2017	Value		Losses			Value		Losses			Value		Losses
Held to maturity securities:
CLO securities	$	1,835	$	(28	)	$	5,692	$	(1,002	)	$	7,527	$	(1,030	)

Debt Securities [Member]

Schedule Of Debt Securities [Line Items]

Schedule of Amortized Cost of Securities and Their Approximate Fair Values

			Gross		Gross
(Dollars in thousands)	Amortized		Unrealized		Unrealized			Fair
March 31, 2018	Cost		Gains		Losses			Value
Available for sale securities:
U.S. Government agency obligations	$	99,885	$	7	$	(1,157	)	$	98,735
U.S. Treasury notes		1,944		—		(28	)		1,916
Mortgage-backed securities, residential		31,965		227		(445	)		31,747
Asset backed securities		11,292		46		(91	)		11,247
State and municipal		36,806		7		(729	)		36,084
Corporate bonds		9,744		38		(78	)		9,704
SBA pooled securities		3,494		4		(15	)		3,483
Total available for sale securities	$	195,130	$	329	$	(2,543	)	$	192,916

			Gross		Gross
	Amortized		Unrecognized		Unrecognized			Fair
	Cost		Gains		Losses			Value
Held to maturity securities:
CLO securities	$	8,614	$	—	$	(503	)	$	8,111

			Gross		Gross
(Dollars in thousands)	Amortized		Unrealized		Unrealized			Fair
December 31, 2017	Cost		Gains		Losses			Value
Available for sale securities:
U.S. Government agency obligations	$	110,531	$	76	$	(717	)	$	109,890
U.S. Treasury notes		1,940		—		(6	)		1,934
Mortgage-backed securities, residential		33,537		306		(180	)		33,663
Asset backed securities		11,883		47		(85	)		11,845
State and municipal		74,684		150		(443	)		74,391
Corporate bonds		15,271		52		(3	)		15,320
SBA pooled securities		3,535		27		(2	)		3,560
Total available for sale securities	$	251,381	$	658	$	(1,436	)	$	250,603

			Gross		Gross
	Amortized		Unrecognized		Unrecognized			Fair
	Cost		Gains		Losses			Value
Held to maturity securities:
CLO securities	$	8,557	$	—	$	(1,030	)	$	7,527

Loans and Allowance for Loan and Lease Losses (Tables)

3 Months Ended

Mar. 31, 2018

Loans And Leases Receivable Disclosure [Abstract]

Schedule of Recorded Investment and Unpaid Principal

The following table presents the recorded investment and unpaid principal for loans at March 31, 2018 and December 31, 2017:

	March 31, 2018								December 31, 2017
	Recorded			Unpaid					Recorded			Unpaid
(Dollars in thousands)	Investment			Principal		Difference			Investment			Principal		Difference
Commercial real estate	$	781,006		$	788,458	$	(7,452	)	$	745,893		$	753,803	$	(7,910	)
Construction, land development, land		143,876			146,493		(2,617	)		134,812			138,045		(3,233	)
1-4 family residential properties		122,979			124,558		(1,579	)		125,827			127,499		(1,672	)
Farmland		184,064			187,585		(3,521	)		180,141			184,006		(3,865	)
Commercial		930,283			932,878		(2,595	)		920,812			924,133		(3,321	)
Factored receivables		397,145			398,911		(1,766	)		374,410			376,046		(1,636	)
Consumer		29,244			29,254		(10	)		31,131			31,144		(13	)
Mortgage warehouse		285,388			285,388		—			297,830			297,830		—
Total		2,873,985		$	2,893,525	$	(19,540	)		2,810,856		$	2,832,506	$	(21,650	)
Allowance for loan and lease losses		(20,022	)							(18,748	)
	$	2,853,963							$	2,792,108

Summary of Allowance for Loan and Lease Losses

Allowance for Loan and Lease Losses

The activity in the allowance for loan and lease losses (“ALLL”) during the three months ended March 31, 2018 and 2017 is as follows:

(Dollars in thousands)	Beginning										Ending
Three months ended March 31, 2018	Balance		Provision			Charge-offs			Recoveries		Balance
Commercial real estate	$	3,435	$	33		$	—		$	—	$	3,468
Construction, land development, land		883		107			—			8		998
1-4 family residential properties		293		(48	)		—			3		248
Farmland		310		308			—			—		618
Commercial		8,150		1,420			(439	)		62		9,193
Factored receivables		4,597		469			(584	)		11		4,493
Consumer		783		271			(443	)		108		719
Mortgage warehouse		297		(12	)		—			—		285
	$	18,748	$	2,548		$	(1,466	)	$	192	$	20,022

(Dollars in thousands)	Beginning										Ending
Three months ended March 31, 2017	Balance		Provision			Charge-offs			Recoveries		Balance
Commercial real estate	$	1,813	$	567		$	(137	)	$	—	$	2,243
Construction, land development, land		465		513			(419	)		7		566
1-4 family residential properties		253		(70	)		(28	)		5		160
Farmland		170		44			—			—		214
Commercial		8,014		5,793			(2,852	)		222		11,177
Factored receivables		4,088		519			(580	)		37		4,064
Consumer		420		372			(299	)		54		547
Mortgage warehouse		182		(60	)		—			—		122
	$	15,405	$	7,678		$	(4,315	)	$	325	$	19,093

Summary of Individual and Collective Allowance for Loan Losses and Loan Balances by Class

The following table presents loans individually and collectively evaluated for impairment, as well as purchased credit impaired (“PCI”) loans, and their respective ALLL allocations:

(Dollars in thousands)	Loan Evaluation								ALLL Allocations
March 31, 2018	Individually		Collectively		PCI		Total loans		Individually		Collectively		PCI		Total ALLL
Commercial real estate	$	881	$	770,376	$	9,749	$	781,006	$	123	$	3,345	$	—	$	3,468
Construction, land development, land		139		139,824		3,913		143,876		21		977		—		998
1-4 family residential properties		2,332		119,570		1,077		122,979		141		107		—		248
Farmland		4,154		179,803		107		184,064		200		418		—		618
Commercial		28,697		900,919		667		930,283		1,636		7,557		—		9,193
Factored receivables		3,742		393,403		—		397,145		484		4,009		—		4,493
Consumer		429		28,815		—		29,244		112		607		—		719
Mortgage warehouse		—		285,388		—		285,388		—		285		—		285
	$	40,374	$	2,818,098	$	15,513	$	2,873,985	$	2,717	$	17,305	$	—	$	20,022

(Dollars in thousands)	Loan Evaluation								ALLL Allocations
December 31, 2017	Individually		Collectively		PCI		Total loans		Individually		Collectively		PCI		Total ALLL
Commercial real estate	$	1,013	$	735,118	$	9,762	$	745,893	$	123	$	3,312	$	—	$	3,435
Construction, land development, land		136		130,732		3,944		134,812		—		883		—		883
1-4 family residential properties		2,638		122,093		1,096		125,827		152		141		—		293
Farmland		3,800		176,232		109		180,141		—		310		—		310
Commercial		26,616		893,509		687		920,812		1,409		6,741		—		8,150
Factored receivables		4,726		369,684		—		374,410		949		3,648		—		4,597
Consumer		384		30,747		—		31,131		80		703		—		783
Mortgage warehouse		—		297,830		—		297,830		—		297		—		297
	$	39,313	$	2,755,945	$	15,598	$	2,810,856	$	2,713	$	16,035	$	—	$	18,748

Summary of Information Pertaining to Impaired Loans

	Impaired Loans and Purchased Credit						Impaired Loans
	Impaired Loans With a Valuation Allowance						Without a Valuation Allowance
(Dollars in thousands)	Recorded		Unpaid		Related		Recorded		Unpaid
March 31, 2018	Investment		Principal		Allowance		Investment		Principal
Commercial real estate	$	157	$	157	$	123	$	724	$	741
Construction, land development, land		88		88		21		51		51
1-4 family residential properties		362		374		141		1,970		2,075
Farmland		1,114		1,100		200		3,040		3,342
Commercial		17,065		17,167		1,636		11,632		11,707
Factored receivables		3,742		3,742		484		—		—
Consumer		367		354		112		62		37
Mortgage warehouse		—		—		—		—		—
PCI		—		—		—		—		—
	$	22,895	$	22,982	$	2,717	$	17,479	$	17,953

	Impaired Loans and Purchased Credit						Impaired Loans
	Impaired Loans With a Valuation Allowance						Without a Valuation Allowance
(Dollars in thousands)	Recorded		Unpaid		Related		Recorded		Unpaid
December 31, 2017	Investment		Principal		Allowance		Investment		Principal
Commercial real estate	$	165	$	165	$	123	$	848	$	881
Construction, land development, land		—		—		—		136		136
1-4 family residential properties		237		235		152		2,401		2,519
Farmland		—		—		—		3,800		4,071
Commercial		9,194		9,191		1,409		17,422		17,605
Factored receivables		4,726		4,726		949		—		—
Consumer		271		267		80		113		115
Mortgage warehouse		—		—		—		—		—
PCI		—		—		—		—		—
	$	14,593	$	14,584	$	2,713	$	24,720	$	25,327

The following table presents average impaired loans and interest recognized on impaired loans for the three months ended March 31, 2018 and 2017:

	Three Months Ended				Three Months Ended
	March 31, 2018				March 31, 2017
	Average		Interest		Average		Interest
(Dollars in thousands)	Impaired Loans		Recognized		Impaired Loans		Recognized
Commercial real estate	$	947	$	—	$	1,090	$	—
Construction, land development, land		137		—		389		—
1-4 family residential properties		2,485		2		1,180		1
Farmland		3,977		7		2,127		9
Commercial		27,657		490		29,096		122
Factored receivables		4,234		—		3,452		—
Consumer		406		1		103		—
Mortgage warehouse		—		—		—		—
PCI		—		—		1,613		—
	$	39,843	$	500	$	39,050	$	132

Summary of Contractually Past Due and Nonaccrual Loans

Past Due and Nonaccrual Loans

The following is a summary of contractually past due and nonaccrual loans at March 31, 2018 and December 31, 2017:

	Past Due		Past Due 90
(Dollars in thousands)	30-89 Days		Days or More
March 31, 2018	Still Accruing		Still Accruing		Nonaccrual		Total
Commercial real estate	$	5,925	$	—	$	881	$	6,806
Construction, land development, land		—		—		139		139
1-4 family residential properties		1,260		—		2,255		3,515
Farmland		1,161		—		3,385		4,546
Commercial		6,300		—		25,172		31,472
Factored receivables		17,823		1,468		—		19,291
Consumer		615		—		404		1,019
Mortgage warehouse		165		—		—		165
PCI		—		—		2,335		2,335
	$	33,249	$	1,468	$	34,571	$	69,288

	Past Due		Past Due 90
(Dollars in thousands)	30-89 Days		Days or More
December 31, 2017	Still Accruing		Still Accruing		Nonaccrual		Total
Commercial real estate	$	1,374	$	—	$	1,012	$	2,386
Construction, land development, land		—		—		136		136
1-4 family residential properties		1,378		62		2,625		4,065
Farmland		250		109		3,412		3,771
Commercial		6,630		39		22,247		28,916
Factored receivables		20,858		1,454		—		22,312
Consumer		947		—		384		1,331
Mortgage warehouse		165		—		—		165
PCI		72		—		2,333		2,405
	$	31,674	$	1,664	$	32,149	$	65,487

Schedule of Nonperforming Loans

The following table presents information regarding nonperforming loans at the dates indicated:

(Dollars in thousands)	March 31, 2018		December 31, 2017
Nonaccrual loans⁽¹⁾	$	34,571	$	32,149
Factored receivables greater than 90 days past due		1,468		1,454
Troubled debt restructurings accruing interest		4,396		5,128
	$	40,435	$	38,731

⁽¹⁾

Includes troubled debt restructurings of $7,648,000 and $14,009,000 at March 31, 2018 and December 31, 2017, respectively.

Summary of Risk Category of Loans

As of March 31, 2018 and December 31, 2017, based on the most recent analysis performed, the risk category of loans is as follows:

(Dollars in thousands)
March 31, 2018	Pass		Substandard		Doubtful		PCI		Total
Commercial real estate	$	766,811	$	4,446	$	—	$	9,749	$	781,006
Construction, land development, land		139,824		139		—		3,913		143,876
1-4 family residential		119,505		2,397		—		1,077		122,979
Farmland		178,052		5,905		—		107		184,064
Commercial		887,738		41,878		—		667		930,283
Factored receivables		393,959		2,477		709		—		397,145
Consumer		28,841		403		—		—		29,244
Mortgage warehouse		285,388		—		—		—		285,388
	$	2,800,118	$	57,645	$	709	$	15,513	$	2,873,985

(Dollars in thousands)
December 31, 2017	Pass		Substandard		Doubtful		PCI		Total
Commercial real estate	$	732,175	$	3,956	$	—	$	9,762	$	745,893
Construction, land development, land		130,732		136		—		3,944		134,812
1-4 family residential		122,044		2,687		—		1,096		125,827
Farmland		171,017		9,015		—		109		180,141
Commercial		878,957		41,168		—		687		920,812
Factored receivables		370,839		2,325		1,246		—		374,410
Consumer		30,739		392		—		—		31,131
Mortgage warehouse		297,830		—		—		—		297,830
	$	2,734,333	$	59,679	$	1,246	$	15,598	$	2,810,856

Schedule of Loans Modified as Troubled Debt Restructurings

The following table presents loans modified as troubled debt restructurings that occurred during the three months ended March 31, 2018 and 2017:

			Pre-Modification		Post-Modification
			Outstanding		Outstanding
(Dollars in thousands)	Number of		Recorded		Recorded
March 31, 2018	Loans		Investment		Investment
Commercial		2	$	75	$	75
1-4 family residential properties		3	$	110	$	110
		5	$	185	$	185

Pre-Modification

Post-Modification

Outstanding

(Dollars in thousands)

Number of

Recorded

March 31, 2017

Loans

Investment

Commercial

186

Schedule of Outstanding Contractually Required Principal and Interest and Carrying Amount of PCI Loans Receivable

The outstanding contractually required principal and interest and the carrying amount of these loans included in the balance sheet amounts of loans at March 31, 2018 and December 31, 2017, are as follows:

	March 31,		December 31,
	2018		2017
Contractually required principal and interest:
Real estate loans	$	16,150	$	16,360
Commercial loans		3,353		3,501
Outstanding contractually required principal and interest	$	19,503	$	19,861
Gross carrying amount included in loans receivable	$	15,513	$	15,598

Schedule of Changes in Accretable Yield for the PCI Loans

	Three Months Ended March 31,
	2018			2017
Accretable yield, beginning balance	$	2,793		$	4,261
Additions		—			—
Accretion		(384	)		(472	)
Reclassification from nonaccretable to accretable yield		33			83
Disposals		—			(440	)
Accretable yield, ending balance	$	2,442		$	3,432

Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill

Goodwill and intangible assets consist of the following:

(Dollars in thousands)		March 31, 2018				December 31, 2017
Goodwill		$	45,373			$	44,126

	March 31, 2018							December 31, 2017
	Gross Carrying		Accumulated			Net Carrying		Gross Carrying		Accumulated			Net Carrying
(Dollars in thousands)	Amount		Amortization			Amount		Amount		Amortization			Amount
Core deposit intangibles	$	29,511	$	(12,397	)	$	17,114	$	29,511	$	(11,335	)	$	18,176
Other intangible assets		1,779		(343	)		1,436		1,764		(288	)		1,476
	$	31,290	$	(12,740	)	$	18,550	$	31,275	$	(11,623	)	$	19,652

Schedule of Changes in Goodwill and Intangible Assets

The changes in goodwill and intangible assets during the three months ended March 31, 2018 and 2017 are as follows:

	Three Months Ended March 31,
(Dollars in thousands)	2018			2017
Beginning balance	$	63,778		$	46,531
Acquired goodwill, measurement period adjustment		1,680			—
Acquired intangibles		15			152
Divestiture		(433	)		(1,339	)
Amortization of intangibles		(1,117	)		(1,111	)
Ending balance	$	63,923		$	44,233

Variable Interest Entities (Tables)

3 Months Ended

Mar. 31, 2018

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Schedule of Variable Interest Entities

The Company holds investments in the subordinated notes of the following closed CLO funds:

	Offering	Offering
(Dollars in thousands)	Date	Amount
Trinitas CLO IV, LTD (Trinitas IV)	June 2, 2016	$	406,650
Trinitas CLO V, LTD (Trinitas V)	September 22, 2016	$	409,000
Trinitas CLO VI, LTD (Trinitas VI)	June 20, 2017	$	717,100

- Definition

Tabular disclosure of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide.

+ References + Details

Deposits (Tables)

3 Months Ended

Mar. 31, 2018

Deposits [Abstract]

Summary of Deposits

Deposits at March 31, 2018 and December 31, 2017 are summarized as follows:

(Dollars in thousands)	March 31, 2018		December 31, 2017
Noninterest bearing demand	$	548,991	$	564,225
Interest bearing demand		392,947		403,244
Individual retirement accounts		105,558		108,505
Money market		283,354		283,969
Savings		244,103		235,296
Certificates of deposit		783,651		837,384
Brokered deposits		174,894		188,725
Total Deposits	$	2,533,498	$	2,621,348

Scheduled Maturities of Certificate of Deposits, Individual Retirement Accounts and Brokered Deposits

At March 31, 2018, scheduled maturities of certificates of deposit, individual retirement accounts and brokered deposits are as follows:

(Dollars in thousands)	March 31, 2018
Within one year	$	789,585
After one but within two years		180,772
After two but within three years		43,229
After three but within four years		31,137
After four but within five years		19,380
After five years		—
Total	$	1,064,103

Off-Balance Sheet Loan Commitments (Tables)

3 Months Ended

Mar. 31, 2018

Commitments And Contingencies Disclosure [Abstract]

Summary of Financial Instruments with Off-Balance Sheet Risk

The contractual amounts of financial instruments with off-balance sheet risk were as follows:

	March 31, 2018				December 31, 2017
(Dollars in thousands)	Fixed Rate		Variable Rate		Fixed Rate		Variable Rate
Unused lines of credit	$	117,111	$	247,753	$	133,634	$	242,236
Standby letters of credit		2,486		8,180		1,998		8,169
Mortgage warehouse commitments		28,530		293,325		9,411		230,221

Fair Value Disclosures (Tables)

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Assets Measured at Fair Value on a Recurring Basis

There were no liabilities measured at fair value on a recurring basis at March 31, 2018 and December 31, 2017.

(Dollars in thousands)	Fair Value Measurements Using						Total
March 31, 2018	Level 1		Level 2		Level 3		Fair Value
Securities available for sale
U.S. Government agency obligations	$	—	$	98,735	$	—	$	98,735
U.S. Treasury notes		—		1,916		—		1,916
Mortgage-backed securities, residential		—		31,747		—		31,747
Asset backed securities		—		11,247		—		11,247
State and municipal		—		36,084		—		36,084
Corporate bonds		—		9,704		—		9,704
SBA pooled securities		—		3,483		—		3,483
	$	—	$	192,916	$	—	$	192,916
Equity securities
Mutual fund	$	4,925	$	—	$	—	$	4,925

(Dollars in thousands)	Fair Value Measurements Using						Total
December 31, 2017	Level 1		Level 2		Level 3		Fair Value
Securities available for sale
U.S. Government agency obligations	$	—	$	109,890	$	—	$	109,890
U.S. Treasury notes		—	$	1,934		—		1,934
Mortgage-backed securities, residential		—		33,663		—		33,663
Asset backed securities		—		11,845		—		11,845
State and municipal		—		74,391		—		74,391
Corporate bonds		—		15,320		—		15,320
SBA pooled securities		—		3,560		—		3,560
	$	—	$	250,603	$	—	$	250,603
Equity securities
Mutual fund	$	5,006	$	—	$	—	$	5,006

Fair Value of Assets Measured on Non-recurring Basis

There were no liabilities measured at fair value on a non-recurring basis at March 31, 2018 and December 31, 2017.

(Dollars in thousands)	Fair Value Measurements Using						Total
March 31, 2018	Level 1		Level 2		Level 3		Fair Value
Impaired loans
Commercial real estate	$	—	$	—	$	34	$	34
Construction, land development, land		—		—		67		67
1-4 family residential properties		—		—		221		221
Farmland		—		—		914		914
Commercial		—		—		15,429		15,429
Factored receivables		—		—		3,258		3,258
Consumer		—		—		255		255
Other real estate owned⁽¹⁾
Commercial		—		—		5,582		5,582
	$	—	$	—	$	25,760	$	25,760

(Dollars in thousands)	Fair Value Measurements Using						Total
December 31, 2017	Level 1		Level 2		Level 3		Fair Value
Impaired loans
Commercial real estate	$	—	$	—	$	42	$	42
1-4 family residential properties		—		—		85		85
Commercial		—		—		7,785		7,785
Factored receivables		—		—		3,777		3,777
Consumer		—		—		191		191
Other real estate owned⁽¹⁾
Commercial		—		—		138		138
Construction, land development, land		—		—		202		202
	$	—	$	—	$	12,220	$	12,220

⁽¹⁾ Represents the fair value of OREO that was adjusted during the period and subsequent to its initial classification as OREO

Estimated Fair Value of Company's Financial Assets and Financial Liabilities

The estimated fair values of the Company’s financial instruments not measured at fair value on a recurring or non-recurring basis at March 31, 2018 and December 31, 2017 were as follows:

(Dollars in thousands)	Carrying		Fair Value Measurements Using						Total
March 31, 2018	Amount		Level 1		Level 2		Level 3		Fair Value
Financial assets:
Cash and cash equivalents	$	106,046	$	106,046	$	—	$	—	$	106,046
Securities - held to maturity		8,614		—		—		8,111		8,111
Loans not previously presented, gross		2,851,090		—		—		2,838,892		2,838,892
FHLB stock		16,508	N/A		N/A		N/A		N/A
Accrued interest receivable		14,036		14,036		—		—		14,036

Financial liabilities:
Deposits		2,533,498		—		2,526,007		—		2,526,007
Customer repurchase agreements		6,751		—		6,751		—		6,751
Federal Home Loan Bank advances		355,000		—		355,000		—		355,000
Subordinated notes		48,853		—		50,980		—		50,980
Junior subordinated debentures		38,734		—		40,638		—		40,638
Accrued interest payable		2,613		2,613		—		—		2,613

(Dollars in thousands)	Carrying		Fair Value Measurements Using						Total
December 31, 2017	Amount		Level 1		Level 2		Level 3		Fair Value
Financial assets:
Cash and cash equivalents	$	134,129	$	134,129	$	—	$	—	$	134,129
Securities - held to maturity		8,557		—		—		7,527		7,527
Loans not previously presented, net		2,780,228		—		—		2,800,362		2,800,362
Loans included in assets held for sale, net		68,668		—		—		69,268		69,268
FHLB stock		16,006	N/A		N/A		N/A		N/A
Accrued interest receivable		15,517		15,517		—		—		15,517

Financial liabilities:
Deposits		2,621,348		—		2,616,034		—		2,616,034
Customer repurchase agreements		11,488		—		11,488		—		11,488
Federal Home Loan Bank advances		365,000		—		365,000		—		365,000
Subordinated notes		48,828		—		52,310		—		52,310
Junior subordinated debentures		38,623		—		41,563		—		41,563
Accrued interest payable		3,323		3,323		—		—		3,323

Regulatory Matters (Tables)

3 Months Ended

Mar. 31, 2018

Regulatory Capital Requirements [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations

The actual capital amounts and ratios for the Company and TBK Bank as of March 31, 2018 and December 31, 2017 are presented in the following table.

								To Be Well
								Capitalized Under
				Minimum for Capital				Prompt Corrective
(Dollars in thousands)	Actual			Adequacy Purposes				Action Provisions
As of March 31, 2018	Amount		Ratio	Amount		Ratio		Amount		Ratio
Total capital (to risk weighted assets)
Triumph Bancorp, Inc.	$	444,789	13.7%	$	260,439		8.0%	N/A		N/A
TBK Bank, SSB	$	372,889	11.9%	$	250,546		8.0%	$	313,183		10.0%

Tier 1 capital (to risk weighted assets)
Triumph Bancorp, Inc.	$	375,545	11.5%	$	195,330		6.0%	N/A		N/A
TBK Bank, SSB	$	352,600	11.3%	$	187,910		6.0%	$	250,546		8.0%

Common equity Tier 1 capital (to risk weighted assets)
Triumph Bancorp, Inc.	$	327,153	10.0%	$	146,497		4.5%	N/A		N/A
TBK Bank, SSB	$	352,600	11.3%	$	140,932		4.5%	$	203,569		6.5%

Tier 1 capital (to average assets)
Triumph Bancorp, Inc.	$	375,545	12.1%	$	124,559		4.0%	N/A		N/A
TBK Bank, SSB	$	352,600	10.6%	$	132,470		4.0%	$	165,588		5.0%

As of December 31, 2017
Total capital (to risk weighted assets)
Triumph Bancorp, Inc.	$	436,036	13.2%	$	264,026		8.0%	N/A		N/A
TBK Bank, SSB	$	361,068	11.4%	$	254,139		8.0%	$	317,674		10.0%

Tier 1 capital (to risk weighted assets)
Triumph Bancorp, Inc.	$	367,958	11.1%	$	198,019		6.0%	N/A		N/A
TBK Bank, SSB	$	341,910	10.8%	$	190,603		6.0%	$	254,137		8.0%

Common equity Tier 1 capital (to risk weighted assets)
Triumph Bancorp, Inc.	$	320,265	9.7%	$	148,514		4.5%	N/A		N/A
TBK Bank, SSB	$	341,910	10.8%	$	142,952		4.5%	$	206,486		6.5%

Tier 1 capital (to average assets)
Triumph Bancorp, Inc.	$	367,958	11.8%	$	124,754		4.0%	N/A		N/A
TBK Bank, SSB	$	341,910	11.1%	$	123,088		4.0%	$	153,860		5.0%

Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2018

Equity [Abstract]

Summary of Capital Structure

The following summarizes the capital structure of Triumph Bancorp, Inc.

Common Stock

	Common Stock
	March 31, 2018			December 31, 2017
Shares authorized		50,000,000			50,000,000
Shares issued		20,918,034			20,912,396
Treasury shares		(93,525	)		(91,951	)
Shares outstanding		20,824,509			20,820,445
Par value per share	$	0.01		$	0.01

Preferred Stock

	Preferred Stock
	Series A						Series B
(Dollars in thousands, except per share amounts)	March 31, 2018			December 31, 2017			March 31, 2018			December 31, 2017
Shares authorized		50,000			50,000			115,000			115,000
Shares issued		45,500			45,500			51,076			51,076
Shares outstanding		45,500			45,500			51,076			51,076
Par value per share	$	0.01		$	0.01		$	0.01		$	0.01
Liquidation preference per share	$	100		$	100		$	100		$	100
Liquidation preference amount	$	4,550		$	4,550		$	5,108		$	5,108
Dividend rate	Prime + 2%			Prime + 2%				8.00	%		8.00	%
Dividend rate - floor		8.00	%		8.00	%	N/A			N/A
Subsequent dividend payment dates	Quarterly			Quarterly			Quarterly			Quarterly
Convertible to common stock	Yes			Yes			Yes			Yes
Conversion period	Anytime			Anytime			Anytime			Anytime
Conversion ratio - preferred to common	6.94008			6.94008			6.94008			6.94008

Stock Based Compensation (Tables)

3 Months Ended

Mar. 31, 2018

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Changes in Company's Nonvested Restricted Stock Awards

A summary of changes in the Company’s nonvested Restricted Stock Awards (“RSAs”) under the Omnibus Incentive Plan for the three months ended March 31, 2018 were as follows:

				Weighted-Average
				Grant-Date
Nonvested RSAs	Shares			Fair Value
Nonvested at January 1, 2018		102,776		$	18.68
Granted		5,492			38.50
Vested		(5,492	)		38.50
Forfeited		(1,574	)		20.61
Nonvested at March 31, 2018		101,202		$	18.65

Summary of Changes in Company's Stock Options

A summary of the changes in the Company’s stock options under the Omnibus Incentive Plan as of and for the three months ended March 31, 2018 were as follows:

						Weighted-Average
						Remaining		Aggregate
				Weighted-Average		Contractual Term		Intrinsic Value
Stock Options	Shares			Exercise Price		(In Years)		(In Thousands)
Outstanding at January 1, 2018		185,328		$	18.97
Granted		—			—
Exercised		(374	)		15.87
Forfeited or expired		(3,186	)		18.98
Outstanding at March 31, 2018		181,768		$	18.98		8.32	$	4,039

Fully vested shares and shares expected to vest at March 31, 2018		181,768		$	18.98		8.32	$	4,039

Shares exercisable at March 31, 2018		31,368		$	15.87		8.01	$	795

Schedule of Information Related to Stock Options

	Three Months Ended March 31,
(Dollars in thousands, except per share amounts)	2018		2017
Aggregate intrinsic value of options exercised	$	10	$	—
Cash received from option exercises	$	—	$	—
Tax benefit realized from option exercises	$	2	$	—
Weighted average fair value of options granted	$	—	$	—

Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Factors Used in Computation of Earnings Per Share

The factors used in the earnings per share computation follow:

	Three Months Ended March 31,
(Dollars in thousands)	2018		2017
Basic
Net income to common stockholders	$	11,878	$	10,281
Weighted average common shares outstanding		20,721,363		17,955,144
Basic earnings per common share	$	0.57	$	0.57
Diluted
Net income to common stockholders	$	11,878	$	10,281
Dilutive effect of preferred stock		190		192
Net income to common stockholders - diluted	$	12,068	$	10,473
Weighted average common shares outstanding		20,721,363		17,955,144
Add: Dilutive effects of restricted stock		85,045		87,094
Add: Dilutive effects of assumed exercises of stock warrants		—		145,896
Add: Dilutive effects of assumed exercises of stock options		83,872		47,873
Add: Dilutive effects of assumed conversion of Preferred A		315,773		315,773
Add: Dilutive effects of assumed conversion of Preferred B		354,471		360,578
Average shares and dilutive potential common shares		21,560,524		18,912,358
Diluted earnings per common share	$	0.56	$	0.55

Business Segment Information (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Schedule of Segment Reporting Information

(Dollars in thousands)
Three Months Ended March 31, 2018	Banking		Factoring			Corporate			Consolidated
Total interest income	$	38,905	$	14,780		$	433		$	54,118
Intersegment interest allocations		2,932		(2,932	)		—			—
Total interest expense		5,554		—			1,434			6,988
Net interest income (expense)		36,283		11,848			(1,001	)		47,130
Provision for loan losses		2,144		393			11			2,548
Net interest income after provision		34,139		11,455			(1,012	)		44,582
Gain on sale of subsidiary or division		1,071		—			—			1,071
Other noninterest income		3,588		590			(77	)		4,101
Noninterest expense		26,538		6,854			650			34,042
Operating income (loss)	$	12,260	$	5,191		$	(1,739	)	$	15,712

(Dollars in thousands)
Three Months Ended March 31, 2017	Banking		Factoring			Corporate			Consolidated
Total interest income	$	27,499	$	8,705		$	128		$	36,332
Intersegment interest allocations		1,289		(1,289	)		—			—
Total interest expense		3,214		—			1,299			4,513
Net interest income (expense)		25,574		7,416			(1,171	)		31,819
Provision for loan losses		7,021		582			75			7,678
Net interest income after provision		18,553		6,834			(1,246	)		24,141
Gain on sale of subsidiary or division		—		—			20,860			20,860
Other noninterest income		3,531		670			2,224			6,425
Noninterest expense		21,969		5,595			7,273			34,837
Operating income (loss)	$	115	$	1,909		$	14,565		$	16,589

(Dollars in thousands)
March 31, 2018	Banking		Factoring		Corporate		Eliminations			Consolidated
Total assets	$	3,346,394	$	386,610	$	514,144	$	(842,138	)	$	3,405,010
Gross loans	$	2,766,383	$	372,771	$	11,582	$	(276,751	)	$	2,873,985

(Dollars in thousands)
December 31, 2017	Banking		Factoring		Corporate		Eliminations			Consolidated
Total assets	$	3,444,322	$	360,922	$	504,656	$	(810,867	)	$	3,499,033
Gross loans	$	2,784,147	$	346,293	$	11,936	$	(331,520	)	$	2,810,856

Summary of Significant Accounting Policies - Additional Information (Details)	3 Months Ended
	Mar. 31, 2018 USD ($) Segments
Summary Of Significant Accounting Policies [Line Items]
Number of reportable segments \| Segments	3
Operating Lease Commitments
Summary Of Significant Accounting Policies [Line Items]
Contractual obligation \| $	$ 10,222,000

Business Combinations and Divestitures - Additional Information (Details)					3 Months Ended
	Jan. 19, 2018	Dec. 09, 2017 USD ($) locations	Oct. 06, 2017 USD ($) Branch	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)	Mar. 31, 2018 USD ($)
Business Acquisition [Line Items]
Goodwill					$ 44,126,000	$ 45,373,000
Origination fees					2,944,000	2,794,000
Valley Bank & Trust
Business Acquisition [Line Items]
Number of locations \| locations		7
Valley Bancorp, Inc.
Business Acquisition [Line Items]
Date of acquisition completion date		Dec. 09, 2017
Goodwill						12,203,000
Business acquisition, related costs					1,251,000
Valley Bancorp, Inc. \| Banking
Business Acquisition [Line Items]
Goodwill		$ 12,203,000
Finite lived intangible assets, Amortization period		10 years
Independent Bank - Colorado Branches
Business Acquisition [Line Items]
Date of acquisition completion date			Oct. 06, 2017
Goodwill			$ 5,817,000
Finite lived intangible assets, Amortization period			10 years
Business acquisition, related costs					$ 437,000
Number of branches acquired \| Branch			9
Aggregate deposit premium			$ 6,771,000
Aggregate deposit premium, percentage			4.20%
Triumph Healthcare Finance
Business Acquisition [Line Items]
Disposal of group agreement date	Jan. 19, 2018
Disposal of group closing date	Mar. 16, 2018
Triumph Capital Advisors, LLC
Business Acquisition [Line Items]
Business acquisition, related costs				$ 400,000
Portion of consideration received				$ 10,500,000
Percentage of annual earn-out payment				3.00%
Maximum earn-out amount				$ 2,500,000
Contingent consideration asset, estimated fair value				1,623,000		$ 1,737,000
Triumph Capital Advisors, LLC \| Loans Receivable
Business Acquisition [Line Items]
Portion of consideration received				$ 10,500,000
Term credit facility, maturity date				Mar. 31, 2023
Origination fees				$ 25,000
Triumph Capital Advisors, LLC \| Interest Rate Floor \| Loans Receivable
Business Acquisition [Line Items]
Term credit facility, interest rate				5.50%

Business Combinations and Divestitures - Summary of Assets Held for Sale and Consideration Received and Gain on Sale (Details) - USD ($)			3 Months Ended
	Mar. 16, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Business Acquisition [Line Items]
Total carrying amount					$ 71,362,000
Gain on sale of subsidiary or division, net of transaction costs			$ 1,071,000	$ 20,860,000
Triumph Healthcare Finance
Business Acquisition [Line Items]
Loans	$ 70,147,000
Premises and equipment, net	19,000
Goodwill	1,457,000
Intangible assets, net	958,000
Other assets	197,000
Total carrying amount	72,778,000
Total consideration received	74,017,000
Gain on sale of subsidiary or division	1,239,000
Transaction costs	168,000
Gain on sale of subsidiary or division, net of transaction costs	$ 1,071,000
Triumph Capital Advisors, LLC
Business Acquisition [Line Items]
Cash		$ 10,554,000		10,554,000
Loan receivable		10,500,000		10,500,000
Revenue share		1,623,000	$ 1,737,000	1,623,000
Total consideration received		22,677,000		$ 22,677,000
Carrying value of TCA membership interest		1,417,000
Gain on sale of subsidiary or division		21,260,000
Transaction costs		400,000
Gain on sale of subsidiary or division, net of transaction costs		$ 20,860,000

Business Combinations and Divestitures - Summary of Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($)			3 Months Ended
	Dec. 09, 2017	Oct. 06, 2017	Mar. 31, 2018	Dec. 31, 2017
Liabilities assumed:
Goodwill			$ 45,373,000	$ 44,126,000
Valley Bancorp, Inc.
Assets acquired:
Cash and cash equivalents			38,473,000
Securities			97,687,000
Loans			171,199,000
FHLB stock			315,000
Premises and equipment			6,238,000
Other real estate owned			2,282,000
Intangible assets			6,072,000
Bank-owned life insurance			7,153,000
Other assets			1,882,000
Total Assets Acquired			331,301,000
Liabilities assumed:
Deposits			293,398,000
Junior subordinated debentures			5,470,000
Other liabilities			4,561,000
Total liabilities			303,429,000
Fair value of net assets acquired			27,872,000
Consideration transferred			40,075,000
Goodwill			12,203,000
Independent Bank - Colorado Branches
Assets acquired:
Cash and cash equivalents		$ 1,611,000
Loans		95,794,000
Premises and equipment		7,524,000
Intangible assets		3,255,000
Other assets		1,644,000
Total Assets Acquired		109,828,000
Liabilities assumed:
Deposits		160,702,000
Other liabilities		249,000
Total liabilities		160,951,000
Fair value of net assets acquired		(51,123,000)
Consideration transferred		45,306,000
Goodwill		$ 5,817,000
Initial Values Recorded at Acquisition Date \| Valley Bancorp, Inc.
Assets acquired:
Cash and cash equivalents	$ 38,473,000
Securities	97,687,000
Loans	171,199,000
FHLB stock	315,000
Premises and equipment	6,238,000
Other real estate owned	2,282,000
Intangible assets	6,072,000
Bank-owned life insurance	7,153,000
Other assets	1,882,000
Total Assets Acquired	331,301,000
Liabilities assumed:
Deposits	293,398,000
Junior subordinated debentures	5,470,000
Other liabilities	2,881,000
Total liabilities	301,749,000
Fair value of net assets acquired	29,552,000
Consideration transferred	40,075,000
Goodwill	$ 10,523,000
Measurement Period Adjustments \| Valley Bancorp, Inc.
Liabilities assumed:
Other liabilities			1,680,000
Total liabilities			1,680,000
Fair value of net assets acquired			(1,680,000)
Goodwill			$ 1,680,000

Business Combinations and Divestitures - Summary of Acquired Loans (Details) - USD ($) $ in Thousands	Dec. 09, 2017	Oct. 06, 2017
Valley Bancorp, Inc.
Business Acquisition [Line Items]
Acquired loans at acquisition	$ 171,199
Valley Bancorp, Inc. \| Non-Purchase Credit Impaired Loans
Business Acquisition [Line Items]
Acquired loans at acquisition	169,746
Valley Bancorp, Inc. \| PCI Loans
Business Acquisition [Line Items]
Acquired loans at acquisition	1,453
Valley Bancorp, Inc. \| Commercial real estate
Business Acquisition [Line Items]
Acquired loans at acquisition	73,527
Valley Bancorp, Inc. \| Commercial real estate \| Non-Purchase Credit Impaired Loans
Business Acquisition [Line Items]
Acquired loans at acquisition	73,273
Valley Bancorp, Inc. \| Commercial real estate \| PCI Loans
Business Acquisition [Line Items]
Acquired loans at acquisition	254
Valley Bancorp, Inc. \| Construction, land development, land
Business Acquisition [Line Items]
Acquired loans at acquisition	20,969
Valley Bancorp, Inc. \| Construction, land development, land \| Non-Purchase Credit Impaired Loans
Business Acquisition [Line Items]
Acquired loans at acquisition	19,770
Valley Bancorp, Inc. \| Construction, land development, land \| PCI Loans
Business Acquisition [Line Items]
Acquired loans at acquisition	1,199
Valley Bancorp, Inc. \| 1-4 family residential properties
Business Acquisition [Line Items]
Acquired loans at acquisition	26,264
Valley Bancorp, Inc. \| 1-4 family residential properties \| Non-Purchase Credit Impaired Loans
Business Acquisition [Line Items]
Acquired loans at acquisition	26,264
Valley Bancorp, Inc. \| Farmland
Business Acquisition [Line Items]
Acquired loans at acquisition	16,934
Valley Bancorp, Inc. \| Farmland \| Non-Purchase Credit Impaired Loans
Business Acquisition [Line Items]
Acquired loans at acquisition	16,934
Valley Bancorp, Inc. \| Commercial
Business Acquisition [Line Items]
Acquired loans at acquisition	31,893
Valley Bancorp, Inc. \| Commercial \| Non-Purchase Credit Impaired Loans
Business Acquisition [Line Items]
Acquired loans at acquisition	31,893
Valley Bancorp, Inc. \| Consumer
Business Acquisition [Line Items]
Acquired loans at acquisition	1,612
Valley Bancorp, Inc. \| Consumer \| Non-Purchase Credit Impaired Loans
Business Acquisition [Line Items]
Acquired loans at acquisition	$ 1,612
Independent Bank - Colorado Branches
Business Acquisition [Line Items]
Acquired loans at acquisition		$ 95,794
Independent Bank - Colorado Branches \| Commercial real estate
Business Acquisition [Line Items]
Acquired loans at acquisition		13,382
Independent Bank - Colorado Branches \| Construction, land development, land
Business Acquisition [Line Items]
Acquired loans at acquisition		537
Independent Bank - Colorado Branches \| 1-4 family residential properties
Business Acquisition [Line Items]
Acquired loans at acquisition		6,986
Independent Bank - Colorado Branches \| Farmland
Business Acquisition [Line Items]
Acquired loans at acquisition		31,490
Independent Bank - Colorado Branches \| Commercial
Business Acquisition [Line Items]
Acquired loans at acquisition		43,104
Independent Bank - Colorado Branches \| Consumer
Business Acquisition [Line Items]
Acquired loans at acquisition		$ 295

Securities - Additional Information (Details)	3 Months Ended
Securities - Additional Information (Details)	Mar. 31, 2018 USD ($) securities	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)
Schedule Of Equity Securities [Line Items]
Sale of equity securities	$ 0	$ 0
Equity securities, Fair Value	4,925,000		$ 5,006,000
Pledged debt securities, at carrying value	$ 68,550,000		85,985,000
Number of securities which is in unrealized loss position \| securities	162
Mutual Fund
Schedule Of Equity Securities [Line Items]
Equity securities, Fair Value	$ 4,925,000		$ 5,006,000
Equity securities, Gross Unrealized Losses	$ (75,000)

Securities - Schedule of Amortized Cost of Debt Securities and Their Approximate Fair Values (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Available for sale securities:
Available for sale securities, Fair Value	$ 192,916	$ 250,603
Total Available for sale securities, Amortized Cost	195,130	251,381
Total Available for sale securities, Gross Unrealized Gains	329	658
Total Available for sale securities, Gross Unrealized Losses	(2,543)	(1,436)
Total Available for sale securities, Fair Value	192,916	250,603
Held to maturity securities:
Held to maturity securities, Amortized Cost	8,614	8,557
Held to maturity securities, Fair Value	8,111	7,527
U.S. Treasury Notes
Available for sale securities:
Available for sale securities, Amortized Cost	1,944	1,940
Available for sale securities, Gross Unrealized Losses	(28)	(6)
Available for sale securities, Fair Value	1,916	1,934
U.S. Government Agency Obligations
Available for sale securities:
Available for sale securities, Amortized Cost	99,885	110,531
Available for sale securities, Gross Unrealized Gains	7	76
Available for sale securities, Gross Unrealized Losses	(1,157)	(717)
Available for sale securities, Fair Value	98,735	109,890
Mortgage-backed Securities, Residential
Available for sale securities:
Available for sale securities, Amortized Cost	31,965	33,537
Available for sale securities, Gross Unrealized Gains	227	306
Available for sale securities, Gross Unrealized Losses	(445)	(180)
Available for sale securities, Fair Value	31,747	33,663
Asset Backed Securities
Available for sale securities:
Available for sale securities, Amortized Cost	11,292	11,883
Available for sale securities, Gross Unrealized Gains	46	47
Available for sale securities, Gross Unrealized Losses	(91)	(85)
Available for sale securities, Fair Value	11,247	11,845
State and Municipal
Available for sale securities:
Available for sale securities, Amortized Cost	36,806	74,684
Available for sale securities, Gross Unrealized Gains	7	150
Available for sale securities, Gross Unrealized Losses	(729)	(443)
Available for sale securities, Fair Value	36,084	74,391
Corporate Bonds
Available for sale securities:
Available for sale securities, Amortized Cost	9,744	15,271
Available for sale securities, Gross Unrealized Gains	38	52
Available for sale securities, Gross Unrealized Losses	(78)	(3)
Available for sale securities, Fair Value	9,704	15,320
SBA Pooled Securities
Available for sale securities:
Available for sale securities, Amortized Cost	3,494	3,535
Available for sale securities, Gross Unrealized Gains	4	27
Available for sale securities, Gross Unrealized Losses	(15)	(2)
Available for sale securities, Fair Value	3,483	3,560
CLO Securities
Held to maturity securities:
Held to maturity securities, Amortized Cost	8,614	8,557
Held to maturity securities, Gross Unrealized Losses	(503)	(1,030)
Held to maturity securities, Fair Value	$ 8,111	$ 7,527

Securities - Schedule of Amortized Cost and Estimated Fair Value of Debt Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Available for Sale Securities, Amortized Cost
Due in one year or less, Amortized Cost	$ 13,901
Due from one year to five years, Amortized Cost	103,224
Due from five years to ten years, Amortized Cost	18,622
Due after ten years, Amortized Cost	12,632
Available for Sale Securities, with single maturity date, Amortized Cost	148,379
Total Available for sale securities, Amortized Cost	195,130	$ 251,381
Available for Sale Securities, Fair Value
Due in one year or less, Fair Value	13,874
Due from one year to five years, Fair Value	101,922
Due from five years to ten years, Fair Value	18,198
Due after ten years, Fair Value	12,445
Available for Sale Securities, with single maturity date, Fair Value	146,439
Available for Sale Securities, Fair Value	192,916	250,603
Held to Maturity Securities, Amortized Cost
Due after ten years, Amortized Cost	8,614
Held to Maturity Securities, with single maturity date, Amortized Cost	8,614
Held to maturity securities, Amortized Cost	8,614	8,557
Held to Maturity Securities, Fair Value
Due after ten years, Fair Value	8,111
Held to Maturity Securities, with single maturity date, Fair Value	8,111
Held to Maturity Securities, Fair Value	8,111	$ 7,527
Mortgage-backed Securities, Residential
Available for Sale Securities, Amortized Cost
Available for Sale Securities, without single maturity date, Amortized Cost	31,965
Available for Sale Securities, Fair Value
Available for Sale Securities, without single maturity date, Fair Value	31,747
Asset Backed Securities
Available for Sale Securities, Amortized Cost
Available for Sale Securities, without single maturity date, Amortized Cost	11,292
Available for Sale Securities, Fair Value
Available for Sale Securities, without single maturity date, Fair Value	11,247
SBA Pooled Securities
Available for Sale Securities, Amortized Cost
Available for Sale Securities, without single maturity date, Amortized Cost	3,494
Available for Sale Securities, Fair Value
Available for Sale Securities, without single maturity date, Fair Value	$ 3,483

Securities - Schedule of Proceeds from Sales of Debt Securities and the Associated Gross Gains and Losses (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($)
Investments Debt And Equity Securities [Abstract]
Proceeds	$ 34,196
Gross gains	5
Gross losses	$ (277)

Securities - Schedule of Information Pertaining to Debt Securities with Gross Unrealized and Unrecognized Losses (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Schedule Of Available For Sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 109,619	$ 102,770
Less than 12 Months, Unrealized Losses	(1,383)	(498)
12 Months or More, Fair Value	53,626	58,540
12 Months or More, Unrealized Losses	(1,160)	(938)
Total, Fair Value	163,245	161,310
Total, Unrealized Losses	(2,543)	(1,436)
U.S. Treasury Notes
Schedule Of Available For Sale Securities [Line Items]
Less than 12 Months, Fair Value	1,916	1,934
Less than 12 Months, Unrealized Losses	(28)	(6)
Total, Fair Value	1,916	1,934
Total, Unrealized Losses	(28)	(6)
U.S. Government Agency Obligations
Schedule Of Available For Sale Securities [Line Items]
Less than 12 Months, Fair Value	59,525	47,605
Less than 12 Months, Unrealized Losses	(521)	(166)
12 Months or More, Fair Value	34,271	40,053
12 Months or More, Unrealized Losses	(636)	(551)
Total, Fair Value	93,796	87,658
Total, Unrealized Losses	(1,157)	(717)
Mortgage-backed Securities, Residential
Schedule Of Available For Sale Securities [Line Items]
Less than 12 Months, Fair Value	12,473	10,349
Less than 12 Months, Unrealized Losses	(202)	(21)
12 Months or More, Fair Value	6,023	6,200
12 Months or More, Unrealized Losses	(243)	(159)
Total, Fair Value	18,496	16,549
Total, Unrealized Losses	(445)	(180)
Asset Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Less than 12 Months, Fair Value		4,898
Less than 12 Months, Unrealized Losses		(85)
12 Months or More, Fair Value	4,901
12 Months or More, Unrealized Losses	(91)
Total, Fair Value	4,901	4,898
Total, Unrealized Losses	(91)	(85)
State and Municipal
Schedule Of Available For Sale Securities [Line Items]
Less than 12 Months, Fair Value	27,000	32,257
Less than 12 Months, Unrealized Losses	(541)	(216)
12 Months or More, Fair Value	8,058	12,138
12 Months or More, Unrealized Losses	(188)	(227)
Total, Fair Value	35,058	44,395
Total, Unrealized Losses	(729)	(443)
Corporate Bonds
Schedule Of Available For Sale Securities [Line Items]
Less than 12 Months, Fair Value	6,142	4,073
Less than 12 Months, Unrealized Losses	(76)	(2)
12 Months or More, Fair Value	373	149
12 Months or More, Unrealized Losses	(2)	(1)
Total, Fair Value	6,515	4,222
Total, Unrealized Losses	(78)	(3)
SBA Pooled Securities
Schedule Of Available For Sale Securities [Line Items]
Less than 12 Months, Fair Value	2,563	1,654
Less than 12 Months, Unrealized Losses	(15)	(2)
Total, Fair Value	2,563	1,654
Total, Unrealized Losses	(15)	(2)
CLO Securities
Held to maturity securities:
Less than 12 Months, Fair Value	1,701	1,835
Less than 12 Months, Unrealized Losses	(152)	(28)
12 Months or More, Fair Value	6,410	5,692
12 Months or More, Unrealized Losses	(351)	(1,002)
Total, Fair Value	8,111	7,527
Total, Unrealized Losses	$ (503)	$ (1,030)

Loans and Allowance for Loan and Lease Losses - Schedule of Recorded Investment and Unpaid Principal for Impaired Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Accounts Notes And Loans Receivable [Line Items]
Loan, Total	$ 2,873,985	$ 2,810,856
Unpaid Principal	2,893,525	2,832,506
Difference	(19,540)	(21,650)
Allowance for loan and lease losses	(20,022)	(18,748)	$ (19,093)	$ (15,405)
Loans, net	2,853,963	2,792,108
Commercial real estate
Accounts Notes And Loans Receivable [Line Items]
Loan, Total	781,006	745,893
Unpaid Principal	788,458	753,803
Difference	(7,452)	(7,910)
Allowance for loan and lease losses	(3,468)	(3,435)	(2,243)	(1,813)
Construction, land development, land
Accounts Notes And Loans Receivable [Line Items]
Loan, Total	143,876	134,812
Unpaid Principal	146,493	138,045
Difference	(2,617)	(3,233)
Allowance for loan and lease losses	(998)	(883)	(566)	(465)
1-4 family residential properties
Accounts Notes And Loans Receivable [Line Items]
Loan, Total	122,979	125,827
Unpaid Principal	124,558	127,499
Difference	(1,579)	(1,672)
Allowance for loan and lease losses	(248)	(293)	(160)	(253)
Farmland
Accounts Notes And Loans Receivable [Line Items]
Loan, Total	184,064	180,141
Unpaid Principal	187,585	184,006
Difference	(3,521)	(3,865)
Allowance for loan and lease losses	(618)	(310)	(214)	(170)
Commercial Loans
Accounts Notes And Loans Receivable [Line Items]
Loan, Total	930,283	920,812
Unpaid Principal	932,878	924,133
Difference	(2,595)	(3,321)
Allowance for loan and lease losses	(9,193)	(8,150)	(11,177)	(8,014)
Factored receivables
Accounts Notes And Loans Receivable [Line Items]
Loan, Total	397,145	374,410
Unpaid Principal	398,911	376,046
Difference	(1,766)	(1,636)
Allowance for loan and lease losses	(4,493)	(4,597)	(4,064)	(4,088)
Consumer
Accounts Notes And Loans Receivable [Line Items]
Loan, Total	29,244	31,131
Unpaid Principal	29,254	31,144
Difference	(10)	(13)
Allowance for loan and lease losses	(719)	(783)	(547)	(420)
Mortgage warehouse
Accounts Notes And Loans Receivable [Line Items]
Loan, Total	285,388	297,830
Unpaid Principal	285,388	297,830
Allowance for loan and lease losses	$ (285)	$ (297)	$ (122)	$ (182)

Loans and Allowance for Loan and Lease Losses - Additional Information (Details)	3 Months Ended
	Mar. 31, 2018 USD ($) loan	Mar. 31, 2017 USD ($) loan	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Accounts Notes And Loans Receivable [Line Items]
Premiums and discounts on acquired loans	$ 16,746,000		$ 18,706,000
Net deferred origination and factoring fees	2,794,000		2,944,000
Pledged loans	735,632,000		596,230,000
Loans transferred to loans held for sale		$ 1,965,000
Proceeds from loans transferred to loans held for sale	0	1,919,000
Losses on transfer of loans to loans held for sale		(46,000)
Recorded investments in troubled debt restructurings	12,044,000		19,137,000
Allowance for loan and lease losses	$ 20,022,000	$ 19,093,000	18,748,000	$ 15,405,000
Number of defaults on modified loans \| loan	1	3
Recorded investments in troubled debt restructurings	$ 156,000	$ 2,987,000
Recorded investment charged off amount	1,466,000	4,315,000
Troubled Debt Restructuring
Accounts Notes And Loans Receivable [Line Items]
Allowance for loan and lease losses	574,000		535,000
Recorded investment charged off amount		2,702,000
Other non interest income
Accounts Notes And Loans Receivable [Line Items]
Losses on transfer of loans to loans held for sale		(46,000)
Factored receivables
Accounts Notes And Loans Receivable [Line Items]
Customer reserves	37,174,000		32,459,000
Allowance for loan and lease losses	4,493,000	4,064,000	4,597,000	4,088,000
Recorded investment charged off amount	584,000	580,000
1-4 family residential properties
Accounts Notes And Loans Receivable [Line Items]
Allowance for loan and lease losses	248,000	160,000	$ 293,000	$ 253,000
Recorded investment charged off amount		$ 28,000
1-4 family residential properties \| Real Eatate Loans
Accounts Notes And Loans Receivable [Line Items]
Residential real estate loans in process of foreclosure	$ 316,000

Loans and Allowance for Loan and Lease Losses - Summary of Allowance for Loan and Lease Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	$ 18,748	$ 15,405
Provision for loan losses	2,548	7,678
Charge-offs	(1,466)	(4,315)
Recoveries	192	325
Ending Balance	20,022	19,093
Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	3,435	1,813
Provision for loan losses	33	567
Charge-offs		(137)
Ending Balance	3,468	2,243
Construction, land development, land
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	883	465
Provision for loan losses	107	513
Charge-offs		(419)
Recoveries	8	7
Ending Balance	998	566
1-4 family residential properties
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	293	253
Provision for loan losses	(48)	(70)
Charge-offs		(28)
Recoveries	3	5
Ending Balance	248	160
Farmland
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	310	170
Provision for loan losses	308	44
Ending Balance	618	214
Commercial Loans
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	8,150	8,014
Provision for loan losses	1,420	5,793
Charge-offs	(439)	(2,852)
Recoveries	62	222
Ending Balance	9,193	11,177
Factored receivables
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	4,597	4,088
Provision for loan losses	469	519
Charge-offs	(584)	(580)
Recoveries	11	37
Ending Balance	4,493	4,064
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	783	420
Provision for loan losses	271	372
Charge-offs	(443)	(299)
Recoveries	108	54
Ending Balance	719	547
Mortgage warehouse
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	297	182
Provision for loan losses	(12)	(60)
Ending Balance	$ 285	$ 122

Loans and Allowance for Loan and Lease Losses - Summary of Individual and Collective Allowance for Loan Losses and Loan Balances by Class (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable Allowance For Credit Losses [Line Items]
Loan Evaluation, Individually	$ 40,374	$ 39,313
Loan Evaluation, Collectively	2,818,098	2,755,945
Loans	2,873,985	2,810,856
ALLL Allocations, Individually	2,717	2,713
ALLL Allocations, Collectively	17,305	16,035
ALLL Allocations, Total ALLL	20,022	18,748	$ 19,093	$ 15,405
Purchased Credit Impaired Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Loans	15,513	15,598
Commercial real estate
Financing Receivable Allowance For Credit Losses [Line Items]
Loan Evaluation, Individually	881	1,013
Loan Evaluation, Collectively	770,376	735,118
Loans	781,006	745,893
ALLL Allocations, Individually	123	123
ALLL Allocations, Collectively	3,345	3,312
ALLL Allocations, Total ALLL	3,468	3,435	2,243	1,813
Commercial real estate \| Purchased Credit Impaired Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Loans	9,749	9,762
Construction, land development, land
Financing Receivable Allowance For Credit Losses [Line Items]
Loan Evaluation, Individually	139	136
Loan Evaluation, Collectively	139,824	130,732
Loans	143,876	134,812
ALLL Allocations, Individually	21
ALLL Allocations, Collectively	977	883
ALLL Allocations, Total ALLL	998	883	566	465
Construction, land development, land \| Purchased Credit Impaired Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Loans	3,913	3,944
1-4 family residential properties
Financing Receivable Allowance For Credit Losses [Line Items]
Loan Evaluation, Individually	2,332	2,638
Loan Evaluation, Collectively	119,570	122,093
Loans	122,979	125,827
ALLL Allocations, Individually	141	152
ALLL Allocations, Collectively	107	141
ALLL Allocations, Total ALLL	248	293	160	253
1-4 family residential properties \| Purchased Credit Impaired Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Loans	1,077	1,096
Farmland
Financing Receivable Allowance For Credit Losses [Line Items]
Loan Evaluation, Individually	4,154	3,800
Loan Evaluation, Collectively	179,803	176,232
Loans	184,064	180,141
ALLL Allocations, Individually	200
ALLL Allocations, Collectively	418	310
ALLL Allocations, Total ALLL	618	310	214	170
Farmland \| Purchased Credit Impaired Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Loans	107	109
Commercial Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Loan Evaluation, Individually	28,697	26,616
Loan Evaluation, Collectively	900,919	893,509
Loans	930,283	920,812
ALLL Allocations, Individually	1,636	1,409
ALLL Allocations, Collectively	7,557	6,741
ALLL Allocations, Total ALLL	9,193	8,150	11,177	8,014
Commercial Loans \| Purchased Credit Impaired Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Loans	667	687
Factored receivables
Financing Receivable Allowance For Credit Losses [Line Items]
Loan Evaluation, Individually	3,742	4,726
Loan Evaluation, Collectively	393,403	369,684
Loans	397,145	374,410
ALLL Allocations, Individually	484	949
ALLL Allocations, Collectively	4,009	3,648
ALLL Allocations, Total ALLL	4,493	4,597	4,064	4,088
Consumer
Financing Receivable Allowance For Credit Losses [Line Items]
Loan Evaluation, Individually	429	384
Loan Evaluation, Collectively	28,815	30,747
Loans	29,244	31,131
ALLL Allocations, Individually	112	80
ALLL Allocations, Collectively	607	703
ALLL Allocations, Total ALLL	719	783	547	420
Mortgage warehouse
Financing Receivable Allowance For Credit Losses [Line Items]
Loan Evaluation, Collectively	285,388	297,830
Loans	285,388	297,830
ALLL Allocations, Collectively	285	297
ALLL Allocations, Total ALLL	$ 285	$ 297	$ 122	$ 182

Loans and Allowance for Loan and Lease Losses - Summary of Information Pertaining to Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Financing Receivable Impaired [Line Items]
Recorded Investment, With Valuation Allowance	$ 22,895		$ 14,593
Unpaid Principal, With Valuation Allowance	22,982		14,584
Related Allowance, With Valuation Allowance	2,717		2,713
Recorded Investment, Without Valuation Allowance	17,479		24,720
Unpaid Principal, Without Valuation Allowance	17,953		25,327
Average Impaired Loans	39,843	$ 39,050
Interest Recognized	500	132
Purchased Credit Impaired Loans
Financing Receivable Impaired [Line Items]
Average Impaired Loans		1,613
Commercial real estate
Financing Receivable Impaired [Line Items]
Recorded Investment, With Valuation Allowance	157		165
Unpaid Principal, With Valuation Allowance	157		165
Related Allowance, With Valuation Allowance	123		123
Recorded Investment, Without Valuation Allowance	724		848
Unpaid Principal, Without Valuation Allowance	741		881
Average Impaired Loans	947	1,090
Construction, land development, land
Financing Receivable Impaired [Line Items]
Recorded Investment, With Valuation Allowance	88
Unpaid Principal, With Valuation Allowance	88
Related Allowance, With Valuation Allowance	21
Recorded Investment, Without Valuation Allowance	51		136
Unpaid Principal, Without Valuation Allowance	51		136
Average Impaired Loans	137	389
1-4 family residential properties
Financing Receivable Impaired [Line Items]
Recorded Investment, With Valuation Allowance	362		237
Unpaid Principal, With Valuation Allowance	374		235
Related Allowance, With Valuation Allowance	141		152
Recorded Investment, Without Valuation Allowance	1,970		2,401
Unpaid Principal, Without Valuation Allowance	2,075		2,519
Average Impaired Loans	2,485	1,180
Interest Recognized	2	1
Farmland
Financing Receivable Impaired [Line Items]
Recorded Investment, With Valuation Allowance	1,114
Unpaid Principal, With Valuation Allowance	1,100
Related Allowance, With Valuation Allowance	200
Recorded Investment, Without Valuation Allowance	3,040		3,800
Unpaid Principal, Without Valuation Allowance	3,342		4,071
Average Impaired Loans	3,977	2,127
Interest Recognized	7	9
Commercial Loans
Financing Receivable Impaired [Line Items]
Recorded Investment, With Valuation Allowance	17,065		9,194
Unpaid Principal, With Valuation Allowance	17,167		9,191
Related Allowance, With Valuation Allowance	1,636		1,409
Recorded Investment, Without Valuation Allowance	11,632		17,422
Unpaid Principal, Without Valuation Allowance	11,707		17,605
Average Impaired Loans	27,657	29,096
Interest Recognized	490	122
Factored receivables
Financing Receivable Impaired [Line Items]
Recorded Investment, With Valuation Allowance	3,742		4,726
Unpaid Principal, With Valuation Allowance	3,742		4,726
Related Allowance, With Valuation Allowance	484		949
Average Impaired Loans	4,234	3,452
Consumer
Financing Receivable Impaired [Line Items]
Recorded Investment, With Valuation Allowance	367		271
Unpaid Principal, With Valuation Allowance	354		267
Related Allowance, With Valuation Allowance	112		80
Recorded Investment, Without Valuation Allowance	62		113
Unpaid Principal, Without Valuation Allowance	37		$ 115
Average Impaired Loans	406	$ 103
Interest Recognized	$ 1

Loans and Allowance for Loan and Lease Losses - Summary of Contractually Past Due and Nonaccrual Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Accounts Notes And Loans Receivable [Line Items]
30-89 Days Past Due	$ 33,249	$ 31,674
Past Due 90 Days or More Still Accruing	1,468	1,664
Nonaccrual	34,571	32,149
Total Past Due	69,288	65,487
Purchased Credit Impaired Loans
Accounts Notes And Loans Receivable [Line Items]
30-89 Days Past Due		72
Nonaccrual	2,335	2,333
Total Past Due	2,335	2,405
Commercial real estate
Accounts Notes And Loans Receivable [Line Items]
30-89 Days Past Due	5,925	1,374
Nonaccrual	881	1,012
Total Past Due	6,806	2,386
Construction, land development, land
Accounts Notes And Loans Receivable [Line Items]
Nonaccrual	139	136
Total Past Due	139	136
1-4 family residential properties
Accounts Notes And Loans Receivable [Line Items]
30-89 Days Past Due	1,260	1,378
Past Due 90 Days or More Still Accruing		62
Nonaccrual	2,255	2,625
Total Past Due	3,515	4,065
Farmland
Accounts Notes And Loans Receivable [Line Items]
30-89 Days Past Due	1,161	250
Past Due 90 Days or More Still Accruing		109
Nonaccrual	3,385	3,412
Total Past Due	4,546	3,771
Commercial Loans
Accounts Notes And Loans Receivable [Line Items]
30-89 Days Past Due	6,300	6,630
Past Due 90 Days or More Still Accruing		39
Nonaccrual	25,172	22,247
Total Past Due	31,472	28,916
Factored receivables
Accounts Notes And Loans Receivable [Line Items]
30-89 Days Past Due	17,823	20,858
Past Due 90 Days or More Still Accruing	1,468	1,454
Total Past Due	19,291	22,312
Consumer
Accounts Notes And Loans Receivable [Line Items]
30-89 Days Past Due	615	947
Nonaccrual	404	384
Total Past Due	1,019	1,331
Mortgage warehouse
Accounts Notes And Loans Receivable [Line Items]
30-89 Days Past Due	165	165
Total Past Due	$ 165	$ 165

Loans and Allowance for Loan and Lease Losses - Schedule of Nonperforming Loans (Details) - USD ($)
$ in Thousands

Mar. 31, 2018

Dec. 31, 2017

Accounts Notes And Loans Receivable [Line Items]

Nonaccrual loans

$ 34,571

$ 32,149

Past Due 90 Days or More Still Accruing

1,468

1,664

Factored receivables

Accounts Notes And Loans Receivable [Line Items]

Past Due 90 Days or More Still Accruing

1,468

1,454

Nonperforming Loans

Accounts Notes And Loans Receivable [Line Items]

Nonaccrual loans

^[1]

34,571

32,149

Troubled debt restructurings accruing interest

4,396

5,128

Total loans

40,435

38,731

Nonperforming Loans | Factored receivables

Accounts Notes And Loans Receivable [Line Items]

Past Due 90 Days or More Still Accruing

$ 1,468

$ 1,454

[1]	Includes troubled debt restructurings of $7,648,000 and $14,009,000 at March 31, 2018 and December 31, 2017, respectively.

Loans and Allowance for Loan and Lease Losses - Schedule of Nonperforming Loans (Parenthetical) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Accounts Notes And Loans Receivable [Line Items]
Nonaccrual loans	$ 34,571	$ 32,149
Troubled Debt Restructuring
Accounts Notes And Loans Receivable [Line Items]
Nonaccrual loans	$ 7,648	$ 14,009

Loans and Allowance for Loan and Lease Losses - Summary of Analysis Performed Risk category Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Accounts Notes And Loans Receivable [Line Items]
Loans	$ 2,873,985	$ 2,810,856
Commercial real estate
Accounts Notes And Loans Receivable [Line Items]
Loans	781,006	745,893
Construction, land development, land
Accounts Notes And Loans Receivable [Line Items]
Loans	143,876	134,812
1-4 family residential properties
Accounts Notes And Loans Receivable [Line Items]
Loans	122,979	125,827
Farmland
Accounts Notes And Loans Receivable [Line Items]
Loans	184,064	180,141
Commercial Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	930,283	920,812
Factored receivables
Accounts Notes And Loans Receivable [Line Items]
Loans	397,145	374,410
Consumer
Accounts Notes And Loans Receivable [Line Items]
Loans	29,244	31,131
Mortgage warehouse
Accounts Notes And Loans Receivable [Line Items]
Loans	285,388	297,830
Purchased Credit Impaired Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	15,513	15,598
Purchased Credit Impaired Loans \| Commercial real estate
Accounts Notes And Loans Receivable [Line Items]
Loans	9,749	9,762
Purchased Credit Impaired Loans \| Construction, land development, land
Accounts Notes And Loans Receivable [Line Items]
Loans	3,913	3,944
Purchased Credit Impaired Loans \| 1-4 family residential properties
Accounts Notes And Loans Receivable [Line Items]
Loans	1,077	1,096
Purchased Credit Impaired Loans \| Farmland
Accounts Notes And Loans Receivable [Line Items]
Loans	107	109
Purchased Credit Impaired Loans \| Commercial Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	667	687
Pass
Accounts Notes And Loans Receivable [Line Items]
Loans	2,800,118	2,734,333
Pass \| Commercial real estate
Accounts Notes And Loans Receivable [Line Items]
Loans	766,811	732,175
Pass \| Construction, land development, land
Accounts Notes And Loans Receivable [Line Items]
Loans	139,824	130,732
Pass \| 1-4 family residential properties
Accounts Notes And Loans Receivable [Line Items]
Loans	119,505	122,044
Pass \| Farmland
Accounts Notes And Loans Receivable [Line Items]
Loans	178,052	171,017
Pass \| Commercial Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	887,738	878,957
Pass \| Factored receivables
Accounts Notes And Loans Receivable [Line Items]
Loans	393,959	370,839
Pass \| Consumer
Accounts Notes And Loans Receivable [Line Items]
Loans	28,841	30,739
Pass \| Mortgage warehouse
Accounts Notes And Loans Receivable [Line Items]
Loans	285,388	297,830
Substandard
Accounts Notes And Loans Receivable [Line Items]
Loans	57,645	59,679
Substandard \| Commercial real estate
Accounts Notes And Loans Receivable [Line Items]
Loans	4,446	3,956
Substandard \| Construction, land development, land
Accounts Notes And Loans Receivable [Line Items]
Loans	139	136
Substandard \| 1-4 family residential properties
Accounts Notes And Loans Receivable [Line Items]
Loans	2,397	2,687
Substandard \| Farmland
Accounts Notes And Loans Receivable [Line Items]
Loans	5,905	9,015
Substandard \| Commercial Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	41,878	41,168
Substandard \| Factored receivables
Accounts Notes And Loans Receivable [Line Items]
Loans	2,477	2,325
Substandard \| Consumer
Accounts Notes And Loans Receivable [Line Items]
Loans	403	392
Doubtful
Accounts Notes And Loans Receivable [Line Items]
Loans	709	1,246
Doubtful \| Factored receivables
Accounts Notes And Loans Receivable [Line Items]
Loans	$ 709	$ 1,246

Loans and Allowance for Loan and Lease Losses - Schedule of Loans Modified as Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) loan	Mar. 31, 2017 USD ($) loan
Accounts Notes And Loans Receivable [Line Items]
Number of Loans \| loan	5
Pre-Modification Outstanding Recorded Investment	$ 185
Post-Modification Outstanding Recorded Investment	$ 185
Commercial Loans
Accounts Notes And Loans Receivable [Line Items]
Number of Loans \| loan	2	4
Pre-Modification Outstanding Recorded Investment	$ 75	$ 186
Post-Modification Outstanding Recorded Investment	$ 75	$ 186
1-4 family residential properties
Accounts Notes And Loans Receivable [Line Items]
Number of Loans \| loan	3
Pre-Modification Outstanding Recorded Investment	$ 110
Post-Modification Outstanding Recorded Investment	$ 110

Loans and Allowance for Loan and Lease Losses - Schedule of Outstanding Contractually Required Principal and Interest and Carrying Amount of PCI Loans Receivable (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Accounts Notes And Loans Receivable [Line Items]
Outstanding contractually required principal and interest	$ 19,503	$ 19,861
Loans	2,873,985	2,810,856
Real Estate Loans
Accounts Notes And Loans Receivable [Line Items]
Outstanding contractually required principal and interest	16,150	16,360
Commercial Loans
Accounts Notes And Loans Receivable [Line Items]
Outstanding contractually required principal and interest	3,353	3,501
Loans	930,283	920,812
Purchased Credit Impaired Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	15,513	15,598
Purchased Credit Impaired Loans \| Commercial Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	$ 667	$ 687

Loans and Allowance for Loan and Lease Losses - Schedule of Changes in Accretable Yield for the PCI Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Accretable yield, beginning balance	$ 2,793	$ 4,261
Accretion	(384)	(472)
Reclassification from nonaccretable to accretable yield	33	83
Disposals		(440)
Accretable yield, ending balance	$ 2,442	$ 3,432

Goodwill and Intangible Assets - Schedule of Intangible Assets and Goodwill (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Goodwill And Intangible Assets [Line Items]
Goodwill	$ 45,373	$ 44,126
Finite-Lived Intangible Assets, Gross Carrying Amount	31,290	31,275
Finite-Lived Intangible Assets, Accumulated Amortization	(12,740)	(11,623)
Finite-Lived Intangible Assets, Net Carrying Amount	18,550	19,652
Core Deposit Intangibles
Goodwill And Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross Carrying Amount	29,511	29,511
Finite-Lived Intangible Assets, Accumulated Amortization	(12,397)	(11,335)
Finite-Lived Intangible Assets, Net Carrying Amount	17,114	18,176
Other Intangible Assets
Goodwill And Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross Carrying Amount	1,779	1,764
Finite-Lived Intangible Assets, Accumulated Amortization	(343)	(288)
Finite-Lived Intangible Assets, Net Carrying Amount	$ 1,436	$ 1,476

Goodwill and Intangible Assets - Schedule of Changes in Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and intangible assets, beginning	$ 63,778	$ 46,531
Acquired goodwill, measurement period adjustment	1,680
Acquired intangibles	15	152
Divestiture	(433)	(1,339)
Amortization of intangibles	(1,117)	(1,111)
Goodwill and intangible assets, ending	$ 63,923	$ 44,233

Variable Interest Entities - Additional Information - (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Asset management fees	$ 1,717
Held to maturity security		$ 8,614	$ 8,557
Income from investment in CLO warehouse entities	964
Collateralized Loan Obligation Funds
Variable Interest Entity [Line Items]
Held to maturity security		8,614	8,557
Income from investment in CLO warehouse entities	$ 964
Collateralized Loan Obligation Funds \| Warehouse CLO Funds
Variable Interest Entity [Line Items]
Equity investments		$ 0	$ 0

Variable Interest Entities - Summary of Closed CLO Funds (Details) - Collateralized Loan Obligation Funds - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Jun. 20, 2017	Sep. 22, 2016	Jun. 02, 2016
Trinitas IV
Variable Interest Entity [Line Items]
Offering Amount				$ 406,650
Offering Date	Jun. 02, 2016
Trinitas V
Variable Interest Entity [Line Items]
Offering Amount			$ 409,000
Offering Date	Sep. 22, 2016
Trinitas VI
Variable Interest Entity [Line Items]
Offering Amount		$ 717,100
Offering Date	Jun. 20, 2017

Deposits - Summary of Deposits (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Deposits [Abstract]
Noninterest bearing demand	$ 548,991	$ 564,225
Interest bearing demand	392,947	403,244
Individual retirement accounts	105,558	108,505
Money market	283,354	283,969
Savings	244,103	235,296
Certificates of deposit	783,651	837,384
Brokered deposits	174,894	188,725
Total deposits	$ 2,533,498	$ 2,621,348

Deposits - Scheduled Maturities of Certificate of Deposits, Individual Retirement Accounts and Brokered Deposits (Details) $ in Thousands	Mar. 31, 2018 USD ($)
Deposits [Abstract]
Within one year	$ 789,585
After one but within two years	180,772
After two but within three years	43,229
After three but within four years	31,137
After four but within five years	19,380
Total	$ 1,064,103

Deposits - Additional Information (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Deposits [Abstract]
Time deposits	$ 144,874	$ 158,197

Off-Balance Sheet Loan Commitments - Summary of Financial Instruments with Off-Balance Sheet Risk - (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Unused Lines of Credit
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Financial instruments, off balance sheet risk, Fixed Rate	$ 117,111	$ 133,634
Financial instruments, off balance sheet risk, Variable Rate	247,753	242,236
Mortgage Warehouse Commitments
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Financial instruments, off balance sheet risk, Fixed Rate	28,530	9,411
Financial instruments, off balance sheet risk, Variable Rate	293,325	230,221
Standby Letters of Credit
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Financial instruments, off balance sheet risk, Fixed Rate	2,486	1,998
Financial instruments, off balance sheet risk, Variable Rate	$ 8,180	$ 8,169

Off-Balance Sheet Loan Commitments - Additional Information (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Overdraft protection available amounts	$ 2,417,000	$ 2,397,000
Other Liabilities
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Allowance for loan and lease losses on off-balance sheet lending-related commitments	$ 369,000	$ 501,000

Fair Value Disclosures - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liabilities, fair value disclosure, recurring	$ 0	$ 0
Liabilities, fair value disclosure, nonrecurring	$ 0	$ 0
Level 3 \| Minimum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Selling and closing costs for loans as a percentage of appraised value	5.00%
Real estate selling and closing costs as a percentage of appraised value	5.00%
Level 3 \| Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Selling and closing costs for loans as a percentage of appraised value	8.00%
Real estate selling and closing costs as a percentage of appraised value	8.00%

Fair Value Disclosures - Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Securities available for sale
Securities available for sale	$ 192,916	$ 250,603
Equity securities
Equity securities	4,925	5,006
Fair Value, Measurements, Recurring [Member]
Securities available for sale
Securities available for sale	192,916	250,603
Mutual Fund
Equity securities
Equity securities	4,925	5,006
Mutual Fund \| Fair Value, Measurements, Recurring [Member]
Equity securities
Equity securities	4,925	5,006
US Government Agency Obligations [Member]
Securities available for sale
Securities available for sale	98,735	109,890
US Government Agency Obligations [Member] \| Fair Value, Measurements, Recurring [Member]
Securities available for sale
Securities available for sale	98,735	109,890
U.S. Treasury Notes \| Fair Value, Measurements, Recurring [Member]
Securities available for sale
Securities available for sale	1,916	1,934
Mortgage-backed Securities, Residential
Securities available for sale
Securities available for sale	31,747	33,663
Mortgage-backed Securities, Residential \| Fair Value, Measurements, Recurring [Member]
Securities available for sale
Securities available for sale	31,747	33,663
Asset Backed Securities
Securities available for sale
Securities available for sale	11,247	11,845
Asset Backed Securities \| Fair Value, Measurements, Recurring [Member]
Securities available for sale
Securities available for sale	11,247	11,845
State and Municipal
Securities available for sale
Securities available for sale	36,084	74,391
State and Municipal \| Fair Value, Measurements, Recurring [Member]
Securities available for sale
Securities available for sale	36,084	74,391
Corporate Bonds
Securities available for sale
Securities available for sale	9,704	15,320
Corporate Bonds \| Fair Value, Measurements, Recurring [Member]
Securities available for sale
Securities available for sale	9,704	15,320
SBA Pooled Securities
Securities available for sale
Securities available for sale	3,483	3,560
SBA Pooled Securities \| Fair Value, Measurements, Recurring [Member]
Securities available for sale
Securities available for sale	3,483	3,560
Level 1 \| Mutual Fund \| Fair Value, Measurements, Recurring [Member]
Equity securities
Equity securities	4,925	5,006
Level 2 \| Fair Value, Measurements, Recurring [Member]
Securities available for sale
Securities available for sale	192,916	250,603
Level 2 \| US Government Agency Obligations [Member] \| Fair Value, Measurements, Recurring [Member]
Securities available for sale
Securities available for sale	98,735	109,890
Level 2 \| U.S. Treasury Notes \| Fair Value, Measurements, Recurring [Member]
Securities available for sale
Securities available for sale	1,916	1,934
Level 2 \| Mortgage-backed Securities, Residential \| Fair Value, Measurements, Recurring [Member]
Securities available for sale
Securities available for sale	31,747	33,663
Level 2 \| Asset Backed Securities \| Fair Value, Measurements, Recurring [Member]
Securities available for sale
Securities available for sale	11,247	11,845
Level 2 \| State and Municipal \| Fair Value, Measurements, Recurring [Member]
Securities available for sale
Securities available for sale	36,084	74,391
Level 2 \| Corporate Bonds \| Fair Value, Measurements, Recurring [Member]
Securities available for sale
Securities available for sale	9,704	15,320
Level 2 \| SBA Pooled Securities \| Fair Value, Measurements, Recurring [Member]
Securities available for sale
Securities available for sale	$ 3,483	$ 3,560

Fair Value Disclosures - Estimated Fair Value of Company's Financial Assets and Financial Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Financial assets:
Cash and cash equivalents, Fair Value	$ 106,046	$ 134,129
Securities - Held to maturity, Fair value	8,111	7,527
Loans not previously presented Fair Value	2,838,892	2,800,362
Loans included in assets held for sale, net, Fair Value		69,268
Accrued interest receivable, Fair Value	14,036	15,517
Cash and cash equivalents, Carrying Amount	106,046	134,129	$ 126,084	$ 114,514
Securities - held to maturity, Carrying Amount	8,614	8,557
Loans not previously presented Carrying Amount	2,851,090	2,780,228
Loans included in assets held for sale, net, Carrying Amount		68,668
FHLB stock, Carrying Amount	16,508	16,006
Accrued interest receivable, Carrying Amount	14,036	15,517
Financial liabilities:
Deposits, Fair Value	2,526,007	2,616,034
Customer repurchase agreements, Fair Value	6,751	11,488
Federal Home Loan Bank advances, Fair Value	355,000	365,000
Subordinated notes, Fair Value	50,980	52,310
Junior subordinated debentures, Fair Value	40,638	41,563
Accrued interest payable, Fair Value	2,613	3,323
Deposits, Carrying Amount	2,533,498	2,621,348
Customer repurchase agreements, Carrying Amount	6,751	11,488
Federal Home Loan Bank advances, Carrying Amount	355,000	365,000
Subordinated notes, Carrying Amount	48,853	48,828
Junior subordinated debentures, Carrying Amount	38,734	38,623
Accrued interest payable, Carrying Amount	2,613	3,323
Level 1
Financial assets:
Cash and cash equivalents, Fair Value	106,046	134,129
Accrued interest receivable, Fair Value	14,036	15,517
Financial liabilities:
Accrued interest payable, Fair Value	2,613	3,323
Level 2
Financial liabilities:
Deposits, Fair Value	2,526,007	2,616,034
Customer repurchase agreements, Fair Value	6,751	11,488
Federal Home Loan Bank advances, Fair Value	355,000	365,000
Subordinated notes, Fair Value	50,980	52,310
Junior subordinated debentures, Fair Value	40,638	41,563
Level 3
Financial assets:
Securities - Held to maturity, Fair value	8,111	7,527
Loans not previously presented Fair Value	$ 2,838,892	2,800,362
Loans included in assets held for sale, net, Fair Value		$ 69,268

Regulatory Matters - Schedule of Actual Capital Amounts and Ratios (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Triumph Bancorp Inc
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total capital (to Risk Weighted Assets) Actual Amount	$ 444,789	$ 436,036
Total Capital (to Risk Weighted Assets) Actual Ratio	13.70%	13.20%
Total Capital (to Risk Weighted Assets) Minimum for Capital Adequacy Purposes Amount	$ 260,439	$ 264,026
Total Capital (to Risk Weighted Assets) Minimum for Capital Adequacy Purposes Ratio	8.00%	8.00%
Tier 1 Capital (to Risk Weighted Assets) Actual Amount	$ 375,545	$ 367,958
Tier 1 Capital (to Risk Weighted Assets) Actual Ratio	11.50%	11.10%
Tier 1 Capital (to Risk Weighted Assets) Minimum for Capital Adequacy Purposes Amount	$ 195,330	$ 198,019
Tier 1 Capital (to Risk Weighted Assets) Minimum for Capital Adequacy Purposes Ratio	6.00%	6.00%
Common Equity Tier 1 Capital (to Risk Weighted Assets) Actual Amount	$ 327,153	$ 320,265
Common Equity Tier 1 Capital (to Risk Weighted Assets) Actual Ratio	10.00%	9.70%
Common Equity Tier 1 Capital (to Risk Weighted Assets) Minimum for Capital Adequacy Purposes Amount	$ 146,497	$ 148,514
Common Equity Tier 1 Capital (to Risk Weighted Assets) Minimum for Capital Adequacy Purposes Ratio	4.50%	4.50%
Tier 1 Capital (to Average Assets) Actual Amount	$ 375,545	$ 367,958
Tier 1 Capital (to Average Assets) Actual Ratio	12.10%	11.80%
Tier 1 Capital (to Average Assets) Minimum for Capital Adequacy Purposes Amount	$ 124,559	$ 124,754
Tier 1 Capital (to Average Assets) Minimum for Capital Adequacy Purposes Ratio	4.00%	4.00%
TBK Bank SSB
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total capital (to Risk Weighted Assets) Actual Amount	$ 372,889	$ 361,068
Total Capital (to Risk Weighted Assets) Actual Ratio	11.90%	11.40%
Total Capital (to Risk Weighted Assets) Minimum for Capital Adequacy Purposes Amount	$ 250,546	$ 254,139
Total Capital (to Risk Weighted Assets) Minimum for Capital Adequacy Purposes Ratio	8.00%	8.00%
Total Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 313,183	$ 317,674
Total Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	10.00%	10.00%
Tier 1 Capital (to Risk Weighted Assets) Actual Amount	$ 352,600	$ 341,910
Tier 1 Capital (to Risk Weighted Assets) Actual Ratio	11.30%	10.80%
Tier 1 Capital (to Risk Weighted Assets) Minimum for Capital Adequacy Purposes Amount	$ 187,910	$ 190,603
Tier 1 Capital (to Risk Weighted Assets) Minimum for Capital Adequacy Purposes Ratio	6.00%	6.00%
Tier 1 Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 250,546	$ 254,137
Tier 1 Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	8.00%	8.00%
Common Equity Tier 1 Capital (to Risk Weighted Assets) Actual Amount	$ 352,600	$ 341,910
Common Equity Tier 1 Capital (to Risk Weighted Assets) Actual Ratio	11.30%	10.80%
Common Equity Tier 1 Capital (to Risk Weighted Assets) Minimum for Capital Adequacy Purposes Amount	$ 140,932	$ 142,952
Common Equity Tier 1 Capital (to Risk Weighted Assets) Minimum for Capital Adequacy Purposes Ratio	4.50%	4.50%
Common Equity Tier 1 Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 203,569	$ 206,486
Common Equity Tier 1 Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	6.50%	6.50%
Tier 1 Capital (to Average Assets) Actual Amount	$ 352,600	$ 341,910
Tier 1 Capital (to Average Assets) Actual Ratio	10.60%	11.10%
Tier 1 Capital (to Average Assets) Minimum for Capital Adequacy Purposes Amount	$ 132,470	$ 123,088
Tier 1 Capital (to Average Assets) Minimum for Capital Adequacy Purposes Ratio	4.00%	4.00%
Tier 1 Capital (to Average Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 165,588	$ 153,860
Tier 1 Capital (to Average Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	5.00%	5.00%

Regulatory Matters - Additional Information (Details)	3 Months Ended	12 Months Ended
Regulatory Matters - Additional Information (Details)	Mar. 31, 2018	Dec. 31, 2017
Regulatory Capital Requirements [Abstract]
Capital conservation buffer rate in 2016	0.625%
Capital conservation buffer rate increase in 2017	0.625%
Capital conservation buffer rate increase in 2018	0.625%
Capital conservation buffer rate in 2019	2.50%
Capital conservation buffer rate	1.875%	1.25%

Stockholders' Equity - Summary of Capital Structure (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Class Of Stock [Line Items]
Shares authorized	50,000,000	50,000,000
Shares issued	20,918,034	20,912,396
Treasury shares	(93,525)	(91,951)
Shares outstanding	20,824,509	20,820,445
Par value per share	$ 0.01	$ 0.01
Series A Preferred Dividends
Class Of Stock [Line Items]
Shares authorized	50,000	50,000
Shares issued	45,500	45,500
Shares outstanding	45,500	45,500
Par value per share	$ 0.01	$ 0.01
Liquidation preference per share	$ 100	$ 100
Liquidation preference amount	$ 4,550	$ 4,550
Dividend rate	Prime + 2%	Prime + 2%
Dividend rate	8.00%	8.00%
Subsequent dividend payment dates	Quarterly	Quarterly
Convertible to common stock	Yes	Yes
Conversion period	Anytime	Anytime
Conversion ratio - preferred to common	6.94008	6.94008
Series B Preferred Dividends
Class Of Stock [Line Items]
Shares authorized	115,000	115,000
Shares issued	51,076	51,076
Shares outstanding	51,076	51,076
Par value per share	$ 0.01	$ 0.01
Liquidation preference per share	$ 100	$ 100
Liquidation preference amount	$ 5,108	$ 5,108
Dividend rate	8.00%	8.00%
Subsequent dividend payment dates	Quarterly	Quarterly
Convertible to common stock	Yes	Yes
Conversion period	Anytime	Anytime
Conversion ratio - preferred to common	6.94008	6.94008

Stock Based Compensation - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation	$ 486	$ 702
2014 Omnibus Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares approved for issuance			1,200,000
2014 Omnibus Incentive Plan \| Restricted Stock Awards (RSAs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total unrecognized compensation cost	$ 572
Weighted-average period to recognize cost	2 years 8 months 26 days
2014 Omnibus Incentive Plan \| Restricted Stock Awards (RSAs) \| Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation, award vesting period	3 years
2014 Omnibus Incentive Plan \| Restricted Stock Awards (RSAs) \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation, award vesting period	4 years
2014 Omnibus Incentive Plan \| Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average period to recognize cost	2 years 7 months 13 days
Stock based compensation, award vesting period	4 years
Employees stock options contractual terms	10 years
Total unrecognized compensation cost	$ 387

Stock Based Compensation - Summary of Changes in Company's Nonvested Restricted Stock Awards (Details) - Restricted Stock Awards (RSAs)	3 Months Ended
	Mar. 31, 2018 $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Nonvested Shares, Beginning balance \| shares	102,776
Nonvested Shares, Granted \| shares	5,492
Nonvested Shares, Vested \| shares	(5,492)
Nonvested Shares, Forfeited \| shares	(1,574)
Nonvested Shares, Ending balance \| shares	101,202
Weighted-Average Grant-Date Fair Value, Nonvested, Beginning balance \| $ / shares	$ 18.68
Weighted-Average Grant-Date Fair Value, Nonvested, Granted \| $ / shares	38.50
Weighted-Average Grant-Date Fair Value, Nonvested, Vested \| $ / shares	38.50
Weighted-Average Grant-Date Fair Value, Nonvested, Forfeited \| $ / shares	20.61
Weighted-Average Grant-Date Fair Value, Nonvested, Ending balance \| $ / shares	$ 18.65

Stock Based Compensation - Summary of Changes in Company's Stock Options (Details) - Stock Options $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock Options, Beginning Balance \| shares	185,328
Stock Options, Exercised \| shares	(374)
Stock Options, Forfeited or expired \| shares	(3,186)
Stock Options, Ending Balance \| shares	181,768
Stock Options, Fully vested shares and shares expected to vest at March 31, 2018 \| shares	181,768
Stock Options, Shares exercisable at March 31, 2018 \| shares	31,368
Weighted-Average Exercise Price, Beginning Balance \| $ / shares	$ 18.97
Weighted-Average Exercise Price, Exercised \| $ / shares	15.87
Weighted-Average Exercise Price, Forfeited or expired \| $ / shares	18.98
Weighted-Average Exercise Price, Ending Balance \| $ / shares	18.98
Weighted-Average Exercise Price, Fully vested shares and shares expected to vest at March 31, 2018 \| $ / shares	18.98
Weighted-Average Exercise Price, Shares exercisable at March 31, 2018 \| $ / shares	$ 15.87
Weighted-Average Remaining Contractual Term, Outstanding at March 31, 2018	8 years 3 months 25 days
Weighted-Average Remaining Contractual Term, Fully vested shares and shares expected to vest at March 31, 2018	8 years 3 months 25 days
Weighted-Average Remaining Contractual Term, Shares exercisable at March 31, 2018	8 years 3 days
Aggregate Intrinsic Value, Outstanding at March 31, 2018 \| $	$ 4,039
Aggregate Intrinsic Value, Fully vested shares and shares expected to vest at March 31, 2018 \| $	4,039
Aggregate Intrinsic Value, Shares exercisable at March 31, 2018 \| $	$ 795

Stock Based Compensation - Schedule of Information Related to Stock Options (Details) - Stock Options $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Aggregate intrinsic value of options exercised	$ 10
Tax benefit realized from option exercises	$ 2

Earnings Per Share - Factors Used in Computation of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Basic
Net income to common stockholders	$ 11,878	$ 10,281
Weighted average common shares outstanding	20,721,363	17,955,144
Basic earnings per common share	$ 0.57	$ 0.57
Diluted
Net income to common stockholders	$ 11,878	$ 10,281
Dilutive effect of preferred stock	190	192
Net income to common stockholders - diluted	$ 12,068	$ 10,473
Weighted average common shares outstanding	20,721,363	17,955,144
Average shares and dilutive potential common shares	21,560,524	18,912,358
Diluted earnings per common share	$ 0.56	$ 0.55
Restricted Stock
Diluted
Dilutive effects of stock based compensation	85,045	87,094
Stock Options
Diluted
Dilutive effects of stock based compensation	83,872	47,873
Series A Preferred Dividends
Diluted
Dilutive effects of assumed conversion of shares	315,773	315,773
Series B Preferred Dividends
Diluted
Dilutive effects of assumed conversion of shares	354,471	360,578
Warrant
Diluted
Dilutive effects of assumed exercises of stock warrants		145,896

Earnings Per Share - Additional Information (Details) - shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share [Abstract]
Antidilutive shares	0	0

Business Segment Information - Additional Information (Details)	Mar. 31, 2017
Triumph Capital Advisors, LLC
Segment Reporting Information [Line Items]
Percentage of membership interests sold	100.00%

Business Segment Information - Banking Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Segment Reporting Information [Line Items]
Total interest income	$ 54,118	$ 36,332
Total interest expense	6,988	4,513
Net interest income	47,130	31,819
Provision for loan losses	2,548	7,678
Net interest income after provision for loan losses	44,582	24,141
Gain on sale of subsidiary or division	1,071	20,860
Other noninterest income	4,101	6,425
Noninterest expense	34,042	34,837
Net income before income tax	15,712	16,589
Total assets	3,405,010		$ 3,499,033
Gross loans	2,873,985		2,810,856
Operating Segments \| Banking
Segment Reporting Information [Line Items]
Total interest income	38,905	27,499
Intersegment interest allocations	2,932	1,289
Total interest expense	5,554	3,214
Net interest income	36,283	25,574
Provision for loan losses	2,144	7,021
Net interest income after provision for loan losses	34,139	18,553
Gain on sale of subsidiary or division	1,071
Other noninterest income	3,588	3,531
Noninterest expense	26,538	21,969
Net income before income tax	12,260	115
Total assets	3,346,394		3,444,322
Gross loans	2,766,383		2,784,147
Operating Segments \| Factoring
Segment Reporting Information [Line Items]
Total interest income	14,780	8,705
Intersegment interest allocations	(2,932)	(1,289)
Net interest income	11,848	7,416
Provision for loan losses	393	582
Net interest income after provision for loan losses	11,455	6,834
Other noninterest income	590	670
Noninterest expense	6,854	5,595
Net income before income tax	5,191	1,909
Total assets	386,610		360,922
Gross loans	372,771		346,293
Operating Segments \| Corporate
Segment Reporting Information [Line Items]
Total interest income	433	128
Total interest expense	1,434	1,299
Net interest income	(1,001)	(1,171)
Provision for loan losses	11	75
Net interest income after provision for loan losses	(1,012)	(1,246)
Gain on sale of subsidiary or division		20,860
Other noninterest income	(77)	2,224
Noninterest expense	650	7,273
Net income before income tax	(1,739)	$ 14,565
Total assets	514,144		504,656
Gross loans	11,582		11,936
Eliminations
Segment Reporting Information [Line Items]
Total assets	(842,138)		(810,867)
Gross loans	$ (276,751)		$ (331,520)

Subsequent Events - Additional Information (Details) - USD ($)	Apr. 12, 2018	Mar. 31, 2018	Dec. 31, 2017
Subsequent Event [Line Items]
Total assets		$ 3,405,010,000	$ 3,499,033,000
Subsequent Event
Subsequent Event [Line Items]
Stock issued during period shares	5,405,000
Shares issued price per share	$ 37.50
Gross proceeds from issuance of common stock	$ 202,688,000
Net proceeds after underwriting discounts and offering expenses	$ 192,100,000
Subsequent Event \| Over-Allotment Option
Subsequent Event [Line Items]
Stock issued during period shares	705,000
First Bancorp of Durango, Inc
Subsequent Event [Line Items]
Total assets			646,000,000
Loans			271,000,000
Deposits			574,000,000
Southern Colorado Corp
Subsequent Event [Line Items]
Total assets			88,000,000
Loans			37,000,000
Deposits			79,000,000
Interstate Capital Corporation
Subsequent Event [Line Items]
Gross factored receivables			$ 112,000,000

Fair Value Disclosures - Fair Value of Assets Measured on Non-recurring Basis (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	$ 25,760	$ 12,220
Impaired Loans \| Commercial real estate
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	34	42
Impaired Loans \| Construction, land development, land
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	67
Impaired Loans \| 1-4 family residential properties
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	221	85
Impaired Loans \| Commercial Loans
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	15,429	7,785
Impaired Loans \| Farmland
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	914
Impaired Loans \| Factored receivables
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	3,258	3,777
Impaired Loans \| Consumer
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	255	191
Other real estate owned \| Commercial real estate
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	5,582	138
Other real estate owned \| Construction, land development, land
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		202
Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	25,760	12,220
Level 3 \| Impaired Loans \| Commercial real estate
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	34	42
Level 3 \| Impaired Loans \| Construction, land development, land
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	67
Level 3 \| Impaired Loans \| 1-4 family residential properties
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	221	85
Level 3 \| Impaired Loans \| Commercial Loans
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	15,429	7,785
Level 3 \| Impaired Loans \| Farmland
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	914
Level 3 \| Impaired Loans \| Factored receivables
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	3,258	3,777
Level 3 \| Impaired Loans \| Consumer
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	255	191
Level 3 \| Other real estate owned \| Commercial real estate
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	$ 5,582	138
Level 3 \| Other real estate owned \| Construction, land development, land
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		$ 202