Veritex (VBTX) 10-K 26 Feb 21 2020 FY Annual report Financial data

Cover Page

Cover Page - USD ($)	12 Months Ended
	Dec. 31, 2020	Feb. 25, 2021	Jun. 30, 2020
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
Document Transition Report	false
Entity File Number	001-36682
Entity Registrant Name	Veritex Holdings, Inc.
Entity Incorporation, State or Country Code	TX
Entity Tax Identification Number	27-0973566
Entity Address, Address Line One	8214 Westchester Drive, Suite 800
Entity Address, City or Town	Dallas
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	75225
City Area Code	972
Local Phone Number	349 6200
Title of 12(b) Security	Common Stock, par value $0.01
Trading Symbol	VBTX
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 853,904,000
Entity Common Stock, Shares Outstanding		49,423,873
Documents Incorporated by Reference	Portions of the registrant’s Definitive Proxy Statement relating to the 2021 Annual Meeting of Shareholders are incorporated by reference into Part III of this Annual Report on Form 10-K to the extent stated herein. Such Definitive Proxy Statement will be filed with the Securities and Exchange Commission within 120 days after the end of the registrant’s fiscal year ended December 31, 2020.
Entity Central Index Key	0001501570
Current Fiscal Year End Date	--12-31
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
ASSETS
Cash and due from banks	$ 44,337	$ 65,151
Interest bearing deposits in other banks	186,488	186,399
Total cash and cash equivalents	230,825	251,550
Debt securities available-for-sale, at fair value	1,024,329	964,365
Debt securities held-to-maturity	30,872	32,965
Equity securities	14,938	14,697
Federal Home Loan Bank ("FHLB") and Federal Reserve Bank ("FRB") stock	1,018	1,018
Federal Home Loan Bank ("FHLB") and Federal Reserve Bank ("FRB") stock	71,236	68,348
Total investments	1,142,393	1,081,393
Loans held for sale	21,414	14,080
Loans held for investment, Paycheck Protection Program ("PPP") loans, carried at fair value	358,042	0
Loans held for investment, mortgage warehouse ("MW")	577,594	183,628
Loans held for investment, excluding MW and PPP	5,847,862	5,737,577
Less: Allowance for credit losses ("ACL")	(105,084)	(29,834)
Total loans held for investment, net	6,678,414	5,891,371
Bank-owned life insurance	82,855	80,915
Bank premises, furniture and equipment, net	115,063	118,536
Other real estate owned	2,337	5,995
Intangible assets, net of accumulated amortization	61,733	72,263
Goodwill	370,840	370,840
Other assets	114,997	67,994
Total assets	8,820,871	7,954,937
Deposits:
Noninterest-bearing deposits	2,097,099	1,556,500
Interest-bearing transaction and savings deposits	2,958,456	2,654,972
Certificates and other time deposits	1,457,291	1,682,878
Total deposits	6,512,846	5,894,350
Accounts payable and other liabilities	61,928	43,996
Advances from FHLB	777,718	677,870
Subordinated debentures and subordinated notes	262,778	145,571
Securities sold under agreements to repurchase	2,225	2,353
Total liabilities	7,617,495	6,764,140
Commitments and contingencies
Stockholders’ equity:
Common stock, value	555	549
Additional paid-in capital	1,126,437	1,117,879
Retained earnings	172,232	147,911
Accumulated other comprehensive income	56,225	19,061
Treasury stock, value	(152,073)	(94,603)
Total stockholders’ equity	1,203,376	1,190,797
Total liabilities and stockholders’ equity	$ 8,820,871	$ 7,954,937

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Fair value	$ 34,283	$ 34,810
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	75,000,000	75,000,000
Common stock, shares issued (in shares)	55,500,118	54,876,580
Common stock, shares outstanding (in shares)	49,337,768	51,063,869
Treasury stock, shares (in shares)	6,162,350	3,812,711

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Interest income:
Loans, including fees	$ 286,583	$ 340,813	$ 134,460
Debt securities	30,726	29,484	6,605
Deposits in financial institutions and Fed Funds sold	1,221	5,540	3,149
Equity securities and other investments	3,320	2,949	855
Total interest and dividend income	321,850	378,786	145,069
Interest expense:
Transaction and savings deposits	13,233	40,355	17,599
Certificates and other time deposits	23,678	38,675	9,714
Advances from FHLB	10,609	9,984	1,701
Subordinated debentures and subordinated notes	8,532	4,675	1,031
Total interest expense	56,052	93,689	30,045
Net interest income	265,798	285,097	115,024
Provision for credit losses	56,640	21,514	6,603
Provision for credit losses on unfunded commitments	9,029	0	0
Net interest income after provision for credit losses	200,129	263,583	108,421
Noninterest income:
Service charges and fees on deposit accounts	13,703	14,334	3,420
Loan fees	4,556	7,782	1,332
Gain (loss) on sales of securities	2,615	(1,852)	(64)
Gain on sale of mortgage loans held for sale	1,239	475	709
Government guaranteed loan income, net	14,150	4,709	2,347
Rental income	2,179	2,172	2,130
Other	8,902	2,460	1,201
Total noninterest income	47,344	30,080	11,075
Noninterest expense:
Salaries and employee benefits	79,453	72,791	31,138
Occupancy and equipment	16,363	16,385	10,679
Professional and regulatory fees	11,729	11,597	7,282
Data processing and software expense	9,213	8,365	3,020
Marketing	3,651	3,259	1,783
Amortization of intangibles	10,790	10,887	3,467
Telephone and communications	1,312	1,847	1,299
Merger and acquisition expense	0	38,960	5,220
COVID expenses	1,377	0	0
Debt extinguishment costs	11,307	0	0
Other	14,192	13,712	5,371
Total noninterest expense	159,387	177,803	69,259
Income before income tax expense	88,086	115,860	50,237
Income tax expense	14,203	25,121	10,896
Net income	73,883	90,739	39,341
Net income allocated to common stockholders	$ 73,883	$ 90,739	$ 39,341
Basic earnings per share (in USD per share)	$ 1.48	$ 1.71	$ 1.63
Diluted earnings per share (in USD per share)	$ 1.48	$ 1.68	$ 1.60

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 73,883	$ 90,739	$ 39,341
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Tax [Abstract]
Change in net unrealized gains (losses) on securities available-for-sale during the period, net	35,400	24,091	(2,153)
Reclassification adjustment for net (gains) losses included in net income	(2,623)	1,852	(64)
Net unrealized gains (losses) on securities available-for-sale	32,777	25,943	(2,089)
Net unrealized gains on derivative instruments designated as cash flow hedges	14,657	1,497
Net unrealized gains on derivative instruments designated as cash flow hedges			0
Other comprehensive income (loss), before tax	47,434	27,440	(2,089)
Income tax expense (benefit)	10,270	5,449	(439)
Other comprehensive income (loss), net of tax	37,164	21,991	(1,650)
Comprehensive income	$ 111,047	$ 112,730	$ 37,691

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Employee Stock Option	Common Stock	Additional Paid-In Capital	Retained Earnings	Retained EarningsCumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Income (Loss)	Unallocated Employee Stock Ownership Plan Shares	Treasury Stock	Green Bancorp, Inc.	Green Bancorp, Inc.Common Stock	Green Bancorp, Inc.Additional Paid-In Capital
Stockholders' equity, beginning balance at Dec. 31, 2017	$ 488,929			$ 241	$ 445,517	$ 44,627		$ (1,280)	$ (106)	$ (70)
Stockholders' equity, beginning balance (in shares) at Dec. 31, 2017				24,109,515						10,000
Increase (Decrease) in Stockholders' Equity
Restricted stock units vested, net (in shares)				105,765
Restricted stock units vested, net	(593)			$ 2	(595)
Shares paid for cashless exercise (in shares)			4,391
Exercise of employee stock options (in shares)				38,614
Exercise of employee stock options	454				454
Stock based compensation	4,048				4,048
ESOP Shares Allocated	109				3				106
Net income	39,341					39,341
Other comprehensive income (loss)	(1,650)							(1,650)
Stockholders' equity, ending balance at Dec. 31, 2018	530,638			$ 243	449,427	83,968		(2,930)	0	$ (70)
Stockholders' equity, ending balance (in shares) at Dec. 31, 2018				24,253,894						10,000
Increase (Decrease) in Stockholders' Equity
Restricted stock units vested, net (in shares)				246,303								497,594
Restricted stock units vested, net	(1,346)			$ 3	(1,349)						$ 12,484	$ 5	$ 12,479
Exercise of employee stock options (in shares)				335,832
Exercise of employee stock options	3,938			$ 3	3,935
Stock issued for acquisition of bank, net of offering cost (in shares)												29,532,957
Stock issued for acquisition of bank, net of offering cost											$ 630,627	$ 295	$ 630,332
Stock buyback (in shares)				(3,802,711)						(3,802,711)
Stock buyback	(94,533)									$ (94,533)
Stock based compensation	21,652				21,652
Reclassification of liability-classified awards to equity awards	1,403				1,403
Net income	90,739					90,739
Dividends paid	(26,796)					(26,796)
Other comprehensive income (loss)	21,991							21,991
Stockholders' equity, ending balance at Dec. 31, 2019	$ 1,190,797			$ 549	1,117,879	147,911		19,061	0	$ (94,603)
Stockholders' equity, ending balance (Accounting Standards Update 2016-13) at Dec. 31, 2019		$ (15,505)					$ (15,505)
Stockholders' equity, ending balance (in shares) at Dec. 31, 2019	51,063,869			51,063,869						3,812,711
Increase (Decrease) in Stockholders' Equity
Restricted stock units vested, net (in shares)				111,558
Restricted stock units vested, net	$ (665)			$ 1	(666)
Shares paid for cashless exercise (in shares)			145,044
Exercise of employee stock options (in shares)				501,980
Exercise of employee stock options	1,137			$ 5	1,132
Stock warrants exercised (in shares)				10,000
Stock warrants exercised	109				109
Stock issued for acquisition of bank, net of offering cost (in shares)											29,532,957
Stock buyback (in shares)				(2,349,639)						(2,349,639)
Stock buyback	(57,470)									$ (57,470)
Stock based compensation	7,983				7,983
Net income	73,883					73,883
Dividends paid	(34,057)					(34,057)
Other comprehensive income (loss)	37,164							37,164
Stockholders' equity, ending balance at Dec. 31, 2020	$ 1,203,376			$ 555	$ 1,126,437	$ 172,232		$ 56,225	$ 0	$ (152,073)
Stockholders' equity, ending balance (in shares) at Dec. 31, 2020	49,337,768			49,337,768						6,162,350

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Green Bancorp, Inc.
Offering costs		$ 788
Restricted stock units
Shares withheld to cover tax withholdings (in shares)	22,404	55,946	20,082
Restricted stock units | Green Bancorp, Inc.
Shares withheld to cover tax withholdings (in shares)		25,872,000
Employee Stock Option
Shares withheld to cover tax withholdings (in shares)	100,400	13,709	1,691
Shares paid for cashless exercise (in shares)	145,044		4,391

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities:
Net income	$ 73,883	$ 90,739	$ 39,341
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of fixed assets and intangibles	15,832	15,933	7,077
Net accretion of time deposit premium, debt discount and debt issuance costs	(1,735)	(8,950)	2
Provision for credit losses	65,669	21,514	6,603
Accretion of loan purchase discount	(14,060)	(28,603)	(8,135)
Stock-based compensation expense	7,983	21,652	4,048
Compensation expense, liability-classified awards	0	1,403	0
Excess tax (benefit) expense from stock compensation	(1,435)	205	(248)
Deferred tax (benefit) expense	(9,384)	9,053	2,707
Net amortization of premiums on debt securities	3,236	2,875	1,931
Unrealized gains on equity securities recognized in earnings	(480)	(325)	0
Change in net cash surrender value of bank owned life insurance	(1,940)	(2,010)	(588)
Net (gain) loss on sales of securities	(2,615)	1,852	64
Change in fair value of government guaranteed loans using fair value option	2,040	(303)	0
Gain on sales of mortgage loans held for sale	(1,239)	(475)	(708)
Gain on sales of government guaranteed loans	(3,379)	(4,388)	(2,348)
Net impairment on servicing asset	368	188	0
Net gain on sales of other real estate owned	(693)	0	0
Originations of loans held for sale	(132,842)	(37,166)	(35,936)
Proceeds from sale of loans held for sale	125,375	34,483	36,227
Write down on other real estate owned	0	0	156
Net loss (gain) on sale of branches	0	474	(349)
Gain on sale of bank premises, furniture and equipment	(358)	0	0
(Increase) decrease in other assets	(20,546)	2,196	(425)
Increase (decrease) in accounts payable and other liabilities	3,970	(16,387)	969
Net cash provided by operating activities	107,650	103,960	50,388
Cash flows from investing activities:
Cash settlement for sale of held for sale branches	0	7,153	(31,810)
Purchases of available for sale debt securities	(1,175,050)	(745,297)	(811,055)
Proceeds from sales of available for sale debt securities	113,771	567,718	40,822
Proceeds from maturities, calls and pay downs of available for sale debt securities	1,033,779	131,788	731,572
Purchases of held to maturity debt securities	0	(8,084)	0
Maturity, calls and pay downs of held to maturity debt securities	1,793	1,249	0
Purchases of other investments	(2,888)	(23,577)	(9,090)
Proceeds from sales of equity securities	221	0	0
Net loans held for investment originated	(897,455)	(151,559)	(344,737)
Proceeds from sale of government guaranteed loans	44,867	69,218	29,010
Net additions to bank premises and equipment	(2,864)	(7,658)	(5,013)
Proceeds from sales of bank premises, furniture and equipment	2,157	0	0
Proceeds from sales of other real estate owned and repossessed assets	7,114	0	291
Net cash used in investing activities	(874,555)	(46,339)	(400,010)
Cash flows from financing activities:
Net increase (decrease) in deposits	619,380	(195,761)	344,101
Net increase (decrease) in advances from FHLB	99,848	349,851	(43,145)
Redemption of subordinated debt	(5,000)	0	0
Net change in other borrowings	0	0	(15,000)
Proceeds from issuance of subordinated notes, net of debt issuance costs paid	123,026	75,000	0
Net decrease in securities sold under agreement to repurchase	(128)	(873)	0
Proceeds from exercise of employee stock options	4,301	3,938	454
Payments to tax authorities for stock-based compensation	(3,829)	(1,346)	(593)
Proceeds from exercise of stock warrants	109	0	0
Proceeds from payments on ESOP loan	0	0	109
Purchase of treasury stock	(57,470)	(94,533)	0
Dividends paid	(34,057)	(26,796)	0
Offering costs paid in connection with acquisition	0	0	(899)
Net cash provided by financing activities	746,180	109,480	285,027
Net (decrease) increase in cash and cash equivalents	(20,725)	167,101	(64,595)
Cash and cash equivalents at beginning of year	251,550	84,449	149,044
Cash and cash equivalents at end of year	230,825	251,550	84,449
Green Bancorp, Inc.
Cash flows from investing activities:
Cash received in excess of cash paid for the acquisition	$ 0	$ 112,710	$ 0

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Nature of Organization and Basis of Presentation In this report, the words, "Veritex," "the Company," "we," "us," and "our" refer to the combined entities of Veritex Holdings, Inc. and its subsidiaries, including Veritex Community Bank. The word "Holdco" refers to Veritex Holdings, Inc.. The word "the Bank" refers to Veritex Community Bank. The accounting principles followed by the Company and the methods of applying them are in conformity with U.S. generally accepted accounting principles (“GAAP”) and prevailing practices of the banking industry. Intercompany transactions and balances are eliminated in consolidation. Veritex is a Texas state banking organization, with corporate offices in Dallas, Texas, and currently operates 25 branches and one mortgage office located in the Dallas-Fort Worth metroplex, 12 branches in the Houston metropolitan area, and one branch in Louisville, Kentucky. The Bank provides a full range of banking services to individual and corporate customers, which include commercial and retail lending, and the acceptance of checking and savings deposits. The Texas Department of Banking (the "TDB") and the Board of Governors of the Federal Reserve System (the "Federal Reserve") are the primary regulators of the Company and the Bank, and both regulatory agencies perform periodic examinations to ensure regulatory compliance. Accounting Standards Codification The Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification (“ASC”) is the officially recognized source of authoritative GAAP applicable to all public and non-public non-governmental entities. Rules and interpretive releases of the Securities and Exchange Commission (“SEC”) under the authority of federal securities laws are also sources of authoritative GAAP for SEC registrants. All other accounting literature is considered non-authoritative. Citing particular content in the ASC involves specifying the unique numeric path to the content through the Topic, Subtopic, Section and Paragraph structure. Segment Reporting The Company has one reportable segment. All of the Company’s activities are interrelated, and each activity is dependent and assessed based on how each activity of the Company supports the others. For example, lending is dependent upon the ability of the Company to fund itself with deposits and borrowings while managing interest rate and credit risk. Accordingly, all significant operating decisions are based upon analysis of the Bank as one segment or unit. The Company’s chief operating decision-maker, the Chief Executive Officer, uses the consolidated results to make operating and strategic decisions. Reclassifications Certain items in the Company's prior year financial statements were reclassified to conform to the current presentation including (i) the reclassification on the Consolidated Balance Sheets of accrued interest payable of $6,569 to accounts payable and other liabilities for the year ended December 31, 2019, (ii) the reclassification on the Consolidated Statement of Income from gain on sale of loans and other assets owned of $475 and $709 to gain on sale of mortgage loans held for sale for the years ended December 31, 2019 and 2018, respectively, (iii) the reclassification on the Consolidated Statement of Income from net gain on sales of loans and other assets owned of $4,388 and $2,347 to government guaranteed loan income, net for the years ended December 31, 2019 and 2018, respectively, (iv) the reclassification on the Consolidated Statement of Income from other noninterest income of $321 to government guaranteed loan income, net for the year ended December 31, 2019, (v) and the reclassification on the Consolidated Statement of Income of other noninterest income of $691 and $476 to rental income for the years ended December 31, 2019 and 2018, respectively. Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements. Actual results could differ from those estimates. The allowance for credit losses, the fair values of financial instruments, realization of deferred tax assets, and the status of contingencies are particularly subject to change. Cash and Cash Equivalents For the purposes of reporting cash flows, cash and cash equivalents include cash on hand, amounts due from banks and federal funds sold. The Bank maintains deposits with other financial institutions in amounts that exceed federal deposit insurance coverage. Furthermore, federal funds sold are essentially uncollateralized loans to other financial institutions. Management regularly evaluates the credit risk associated with the counterparties to these transactions and believes that the Company is not exposed to any significant credit risks on cash and cash equivalents. Restrictions on Cash The Bank is required to maintain regulatory reserve balances with the FRB. On March 15, 2020, the Board of Governors of the Federal Reserve System announced that it had reduced the required regulatory reserve balance to 0% effective on March 26, 2020. The Board of Governors took this action in reaction to the economic dislocation caused by the COVID-19 pandemic and in light of the Federal Open Markets Committee's announcement in 2019 that it intends to implement monetary policy in an ample reserve regime, where reserve requirements do not play a role. The reserve balances required as of December 31, 2019 was approximately $170,593. Debt Securities Debt securities that the Company has both the positive intent and ability to hold to maturity are classified as held to maturity and are carried at amortized cost. Debt securities that the Company intends to hold for an indefinite period of time, but not necessarily to maturity, are classified as available for sale and are carried at fair value. Unrealized gains and losses on debt securities classified as available for sale have been accounted for as accumulated other comprehensive income (loss), net of taxes. Management determines the appropriate classification of debt securities at the time of purchase. Interest income includes amortization of purchase premiums and discounts over the period to maturity using a level-yield method, except for premiums on callable debt securities. Realized gains and losses are recorded on the sale of debt securities in noninterest income. The Company has made a policy election to exclude accrued interest from the amortized cost basis of debt securities and report accrued interest separately in other assets on the consolidated balance sheets. A debt security is placed on nonaccrual status at the time any principal or interest payments become more than 90 days delinquent or if full collection of interest or principal becomes uncertain. Accrued interest for a security placed on nonaccrual is reversed against interest income. There was no accrued interest related to debt securities reversed against interest income for the years ended December 31, 2020, 2019 and 2018. Equity Securities Equity securities are recorded at fair value, with unrealized gains and losses included in other noninterest income. The Company measures equity securities that do not have readily determinable fair values at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. Dividends on equity securities are recorded in interest income for equity securities and other investments. Realized gains and losses are recorded on the sale of equity securities in gain (loss) on sales of securities. The Company recorded no impairment for equity securities without a readily determinable fair value for the years ended December 31, 2020 and 2019. Allowance for Credit Losses – Available for Sale Debt Securities For available for sale debt securities in an unrealized loss position, the Company first assesses whether it intends to sell, or it is more likely than not that it will be required to sell the security before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the security's amortized cost basis is written down to fair value through income. For debt securities available for sale that do not meet the aforementioned criteria, the Company evaluates whether the decline in fair value has resulted from credit losses or other factors. In making this assessment, management considers the extent to which fair value is less than amortized cost, any changes to the rating of the security by a rating agency and adverse conditions specifically related to the security, among other factors. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security are compared to the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an ACL is recorded for the credit loss, limited by the amount that the fair value is less than the amortized cost basis. Any impairment that has not been recorded through an ACL is recognized in other comprehensive income. Changes in the ACL are recorded as provision for (or reversal of) credit loss expense. Losses are charged against the allowance when management believes the uncollectibility of an available for sale security is confirmed or when either of the criteria regarding intent or requirement to sell is met. Accrued interest receivable on available for sale debt securities is excluded from the estimate of credit losses. All o wan ce for Cr e d it Loss e s – He l d to Mat u r i ty Debt Sec u ri ti es Management measures expected credit losses on held to maturity debt securities on a collective basis by major security type. The estimate of expected credit losses considers historical credit loss information that is adjusted for current conditions and reasonable and supportable forecasts. Accrued interest receivable on held to maturity debt securities is excluded from the estimate of credit losses . Management classifies the held to maturity portfolio into the following major security types: mortgage-backed securities, coll ateralized mortgage obligations and municipal securities. All of the mortgage-backed securities and collateralized mortgage obligations held by the Company are issued by U.S. government entities and agencies. These debt securities are either explicitly or implicitly guaranteed by the U . S. government, are highly rated by major rating agencies and have a long history of no credit losses . FHLB and FRB Stock The Bank is a member of its regional Federal Reserve Bank and of the FHLB system. FHLB members are required to own a certain amount of stock based on the level of borrowings and other factors, and may invest in additional amounts. Both FRB and FHLB stock are carried at cost, restricted for sale, and periodically evaluated for impairment based on ultimate recovery of par value. Dividends are recorded in interest income for equity securities and other investments. Loans Held for Sale Loans are classified as held-for-sale when management has positively determined that the loans will be sold in the foreseeable future and the Company has the intent and ability to do so. The Company’s held-for-sale loans typically consist of certain government guaranteed loans or mortgage loans. The classification may be made upon origination or subsequent to origination or purchase. Once a decision has been made to sell loans not previously classified as held-for-sale, such loans are transferred into the held-for-sale classification and carried at the lower of cost or estimated fair value on an individual loan basis, except for those held-for-sale loans for which the Company elects to use the fair value option. The fair value of loans held-for-sale is based on commitments from investors or prevailing market prices. Net unrealized losses, if any, are recognized through a valuation allowance by charges to income. The Company obtains commitments to purchase the loans from secondary market investors prior to closing of the loans. Mortgage loans held for sale are sold with servicing released. Gains and losses on sales of loans held for sale are based on the difference between the selling price and the carrying value of the related loan sold. Fair Value Option On a specific identification basis, the Company may elect the fair value option for certain financial instruments in the period the financial instrument was originated or acquired. As of December 31, 2020, the Company had held for sale government guaranteed loans and held for investment PPP loans that the Company has elected to carry at fair value. Changes in fair value for instruments using the fair value option are recorded in noninterest income. The Company had a decrease in fair value for loans the Company elected to carry at fair value of $2,040 for the year ended December 31, 2020 as compared to an increase in the fair value for loans the Company elected to carry at fair value of $303 for the year ended December 31, 2019. There were no changes in fair value for loans held for sale using the fair value option for the year ended December 31, 2018. In addition, the Company records upfront costs and fees as incurred that are related to items for which the fair value option is elected through noninterest income. For the year ended December 31, 2020, the Company recognized upfront fees of $12,811 on PPP loans through government guaranteed loan income, net, on the Consolidated Statements of Income. There were minimal upfront fees recognized on loans electing the fair value option for the years ended December 31, 2019 and December 31, 2018. Gain on Sale of Guaranteed Portion of Small Business Administration ("SBA") Loans The Company originates loans to customers under government guaranteed programs that generally provide for guarantees of 50% to 90% of each loan, subject to a maximum guaranteed amount. The Company can sell the guaranteed portion of the loan in an active secondary market and retains the unguaranteed portion in its portfolio. All sales of government guaranteed loans are executed on a servicing retained basis, and the Company retains the rights and obligations to service the loans. The standard sale structure provides for the Company to retain a portion of the cash flow from the interest payment received on the loan. When a loan sale involves the transfer of an interest less than the entire loan, the controlling accounting method under FASB ASC 860, Transfers and Servicing, requires the seller to reallocate the carrying basis between the assets transferred and the assets retained based on the relative fair value of the respective assets as of the date of sale. The maximum gain on sale that can be recognized is the difference between the fair value of the assets sold and the reallocated basis of the assets sold. The gain on sale, which is recognized in government guaranteed loan income, net on the Consolidated Statements of Income, is the sum of the cash premium on the guaranteed loan and the fair value of the servicing assets recognized, less the discount recorded on the unguaranteed portion of the loan retained by the Company. For the years ended December 31, 2020, 2019 and 2018, the Company recognized $3,379, $4,388 and $2,348, respectively, of gain on sales of government guaranteed loans. Gain on Sale of Mortgage Loans Held for Sale Certain mortgage loans held for sale are sold with servicing released. Gains and losses on sales of mortgage loans held for sale are based on the difference between the selling price and the carrying value of the loan sold. Adoption of New Accounting Standard On January 1, 2020, the Company adopted Accounting Standard Update (“ASU”) 2016-13 Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , which replaces the incurred loss methodology with an expected loss methodology that is referred to as the CECL methodology. The measurement of expected credit losses under the CECL methodology is applicable to financial assets measured at amortized cost, including loan receivables and held-to-maturity debt securities. It also applies to off-balance sheet (“OBS”) credit exposures not accounted for as insurance (loan commitments, standby letters of credit, financial guarantees, and other similar instruments) and net investments in leases recognized by a lessor in accordance with Topic 842 on leases. In addition, ASC 326 made changes to the accounting for available-for-sale debt securities. One such change is to require credit losses to be presented as an allowance rather than as a write-down on available-for-sale debt securities management does not intend to sell or believes that it is more likely than not they will be required to sell. The Company adopted ASC 326 using the modified retrospective method for all financial assets measured at amortized cost, net investments in leases and OBS credit exposures. Results for reporting periods beginning after January 1, 2 020 are presented under ASC 326 while prior period amounts continue to be reported in accordance with previously applicable GAAP. The Company recorded a net decrease to retained earnings of $15,505 as of January 1, 2020 for the cumulative effect of adopting ASC 326. The Company adopted ASC 326 using the prospective transition approach for financial assets purchased with credit deterioration (“PCD”) that were previously classified as PCI and accounted for under ASC 310-30. In accordance with the standard, managem ent did not reassess whether PCI assets met the criteria of PCD assets as of the date of adoption. On January 1, 2020, the amortized cost basis of the PCD assets were adjusted to reflect the addition of $19,710 of the ACL. The remaining noncredit discount will be accreted into interest income at the effective interest rate. As allowed by ASC 326, the Company elected to maintain pools of loans accounted for under ASC 310-30. In accordance with the standard, management did not reassess whether modifications to individual acquired financial assets accounted for in pools were troubled debt restructurings as of the date of adoption. The following table illustrates the impact of ASC 326. January 1, 2020 As Reported Pre-ASC 326 Impact of ASC 326 Adoption Assets: Allowance for credit losses on debt securities held-to-maturity $ — $ — $ — Allowance for credit losses on loans Construction and land 3,760 3,822 (62) Farmland 65 61 4 1 - 4 family residential 6,002 1,378 4,624 Multi-family residential 2,593 1,965 628 Owner Occupied Commercial Real Estate 13,066 1,978 11,088 Non-Owner Occupied Commercial Real Estate 15,314 8,139 7,175 Commercial 27,729 12,369 15,360 Consumer 442 122 320 Allowance for credit losses on loans $ 68,971 $ 29,834 $ 39,137 Liabilities: Allowance for credit losses on OBS credit exposures $ 1,718 $ 878 $ 840 Loans Held for Investments Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at amortized cost, net of the ACL. Amortized cost is the principal balance outstanding, net of purchase premiums and discounts, fair value hedge accounting adjustments, deferred loan fees and costs. The Company has made a policy election to exclude accrued interest from the amortized cost basis of loans and report accrued interest separately from the related loan balance in other assets on the Consolidated Balance Sheets. Interest on loans is recognized using the effective-interest method on the daily balances of the principal amounts outstanding. Loan origination fees, net of certain direct origination costs, are deferred and recognized in interest income using the level-yield method without anticipating prepayments. Loans are considered past due if the required principal and interest payments have not been received as of the date such payments were due in accordance with the terms of the loan agreement. The accrual of interest on loans is discontinued when, in management’s opinion, the borrower may be unable to meet payment obligations as they come due, as well as when required by regulatory provisions. Loans may be placed on nonaccrual status regardless of whether or not such loans are considered past due. When a loan is placed on nonaccrual status, all interest accrued but not received for loans placed on nonaccrual is reversed against interest income. Interest received on such loans is accounted for on the cash-basis or cost-recovery method, until qualifying for return to accrual. Under the cost-recovery method, interest income is not recognized until the loan balance is reduced to zero. Under the cash-basis method, interest income is recorded when the payment is received in cash. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. Acquired Loans Prior to January 1, 2020, loans acquired in a business combination that had evidence of deterioration of credit quality since origination and for which it was probable, at acquisition, that the Company would be unable to collect all contractually required payments receivable were considered purchased credit impaired (“PCI”). PCI loans were accounted for individually or aggregated into pools of loans based on common risk characteristics such as credit grade, loan type, and date of origination. All loans considered to be PCI loans prior to January 1, 2020 were converted to PCD loans upon the Company’s adoption of ASC 326. The Company elected to maintain pools of loans that were previously accounted for under ASC 310-30 and will continue to account for these pools as a unit of account for all applicable areas of accounting which include credit loss measurement, interest income recognition, non-accrual determination, write-off determination and trouble debt restructuring identification. Loans are only removed from the existing pools if they are foreclosed, written off, paid off, or sold. Upon adoption of ASC 326, the ACL was determined for each loan or pool and added to the loan or pool's carrying amount to establish a new amortized cost basis. The difference between the unpaid principal balance of the loan or pool and the new amortized cost basis is the noncredit premium or discount which will be accreted into interest income over the remaining life of the loan or pool. Changes to the ACL after adoption are recorded through provision for credit loss expense. Subsequent to January 1, 2020, loans acquired in a business combination that have experienced more-than-insignificant deterioration in credit quality since origination are considered PCD loans. At the acquisition date, an estimate of expected credit losses is made for groups of PCD loans with similar risk characteristics and individual PCD loans without similar risk characteristics. This initial ACL is allocated to individual PCD loans and added to the purchase price or acquisition date fair values to establish the initial amortized cost basis of the PCD loans. As the initial ACL is added to the purchase price, there is no credit loss expense recognized upon acquisition of a PCD loan. Any difference between the unpaid principal balance of PCD loans and the amortized cost basis is considered to relate to noncredit factors and results in a discount or premium. Discounts and premiums are recognized through interest income on a level-yield method over the life of the loans. For acquired loans not deemed purchased credit deteriorated at acquisition, the differences between the initial fair value and the unpaid principal balance are recognized as interest income on a level-yield basis over the lives of the related loans. At the acquisition date, an initial allowance for expected credit losses is estimated and recorded as credit loss expense. The subsequent measurement of expected credit losses for all acquired loans is the same as the subsequent measurement of expected credit losses for originated loans. Allowance for Credit Losses - Loans The ACL is a valuation account that is deducted from the loans' amortized cost basis to present the net amount expected to be collected on the loans. The Company estimates the ACL on loans based on the underlying assets’ amortized cost basis, which is the amount at which the financing receivable is originated or acquired, adjusted for applicable accretion or amortization of premium, discount, and net deferred fees or costs, collection of cash, and charge-offs. In the event that collection of principal becomes uncertain, the Company has policies in place to reverse accrued interest in a timely manner. Therefore, the Company has made a policy election to exclude accrued interest from the measurement of ACL. Expected credit losses are reflected in the ACL through a charge to provision for credit loss expense. When the Company deems all or a portion of a financial asset to be uncollectible the appropriate amount is written off and the ACL is reduced by the same amount. The Company applies judgment to determine when a financial asset is deemed uncollectible; however, an asset will typically be considered uncollectible no later than when all efforts at collection have been exhausted. Subsequent recoveries, if any, are credited to the ACL when received. The Company measures expected credit losses of financial assets on a collective (pool) basis, when the financial assets share similar risk characteristics. Depending on the nature of the pool of financial assets with similar risk characteristics, the Company uses a discounted cash flow (“DCF”) method or a loss-rate method to estimate expected credit losses. The Company uses a probability of default/loss given default (“PD/LGD”) model to estimate expected credit losses for our PCD loans and pools. The Company’s methodologies for estimating the ACL take into account available relevant information about the collectability of cash flows, including information about past events, current conditions, and reasonable and supportable forecasts. The methodologies apply historical loss information, adjusted for asset-specific characteristics, economic conditions at the measurement date, and forecasts about future economic conditions expected to exist through the contractual lives of the financial assets that are reasonable and supportable, to the identified pools of financial assets with similar risk characteristics for which the historical loss experience was observed. The Company has identified the following pools of financial assets with similar risk characteristics for measuring expected credit losses: Real Estate — This category of loans consists of the following loan types: Construction and land — This category of loans consists of loans to finance the ground up construction, improvement and/or carrying for sale after the completion of construction of owner occupied and non-owner occupied residential and commercial properties, and loans secured by raw or improved land. The repayment of construction loans is generally dependent upon the successful completion of the improvements by the builder for the end user, or sale of the property to a third party. Repayment of land secured loans are dependent upon the successful development and sale of the property, the sale of the land as is, or the outside cash flow of the owners to support the retirement of the debt. Farmland — These loans are principally loans to purchase farmland. 1-4 family residential — This category of loans includes both first and junior liens on residential real estate. Home equity revolving lines of credit and home equity term loans are included in this group of loans. Multi-family residential — This category of loans is primarily secured by non-owner occupied apartment or multifamily residential buildings. Generally, these types of loans are thought to involve a greater degree of credit risk than owner occupied commercial real estate as they are more sensitive to adverse economic conditions. Owner occupied commercial real estate (“OOCRE”) — This category of loans includes real estate loans for a variety of commercial property types and purposes. The repayment of real estate loans is generally largely dependent on the successful operation of the property securing the loans or the business conducted on the property securing the loan. Real estate loans may be more adversely affected by conditions in the real estate markets or in the general economy. The properties securing the Company’s real estate portfolio are generally diverse in terms of type and geographic location, throughout the Dallas-Fort Worth metroplex and Houston metropolitan area. This diversity helps reduce the exposure to adverse economic events that may affect any single market or industry. Non-owner occupied commercial real estate (“NOOCRE”) — This category of loans includes investment real estate loans that are primarily secured by office and industrial buildings, retail shopping centers and various special purpose properties. Generally, these types of loans are thought to involve a greater degree of credit risk than OOCRE as they are more sensitive to adverse economic conditions. Commercial — This category of loans is for commercial, corporate and business purposes. The Company’s commercial business loan portfolio is comprised of loans for a variety of purposes and across a variety of industries. These loans include general commercial and industrial loans, loans to purchase capital equipment, agriculture operating loans and other business loans for working capital and operational purposes. Most commercial loans are secured by the assets being financed or other business assets, such as accounts receivable or inventory. Mortgage warehouse — Mortgage warehouse facilities are provided to unaffiliated mortgage origination companies and are collateralized by 1-4 family residential loans. The originator closes new mortgage loans with the intent to sell these loans to third party investors for a profit. The Company provides funding to the mortgage companies for the period between the origination and their sale of the loan. The Company is repaid with the proceeds received from sale of the mortgage loan to the final investor. Consumer — This category of loans is used for personal use typically for consumer purposes. Collateral Dependent Financial Assets Loans that do not share similar risk characteristics are evaluated on an individual basis. For collateral dependent financial assets where the Company has determined that foreclosure of the collateral is probable, or where the borrower is experiencing financial difficulty and the Company expects repayment of the financial asset to be provided substantially through the operation or sale of the collateral, the ACL is measured based on the difference between the fair value of the collateral and the amortized cost basis of the asset as of the measurement date. When repayment is expected to be from the operation of the collateral, expected credit losses are calculated as the amount by which the amortized cost basis of the financial asset exceeds the present value of expected cash flows from the operation of the collateral. When repayment is expected to be from the sale of the collateral, expected credit losses are calculated as the amount by which the amortized costs basis of the financial asset exceeds the fair value of the underlying collateral less estimated costs to sell. The ACL may be zero if the fair value of the collateral at the measurement date exceeds the amortized cost basis of the financial asset. For collateralized financial assets that are not collateral dependent, the Company will consider the nature of the collateral, potential future changes in collateral values, and historical loss information for financial assets secured with similar collateral to determine the ACL. Troubled-debt Restructurings (TDRs) From time to time, the Company may modify its loan agreement with a borrower. A modified loan is considered a TDR, using Accounting Standards Codification 310-40, “ Receivables – Troubled Debt Restructurings by Creditors ,” (“ASC 310-40”), when two conditions are met: (i) the borrower is experiencing financial difficulty and (ii) concessions are made by the Company that would not otherwise be considered for a borrower with similar credit risk characteristics. Modif

Supplemental Statement of Cash

Supplemental Statement of Cash Flows	12 Months Ended
	Dec. 31, 2020
Supplemental Cash Flow Elements [Abstract]
Supplemental Statement of Cash Flows	Supplemental Statement of Cash Flows Other supplemental cash flow information is presented below: Year Ended December 31, 2020 2019 2018 Supplemental Disclosures of Cash Flow Information: Cash paid for interest $ 58,236 $ 88,175 $ 29,178 Cash paid for income taxes 40,690 24,100 6,525 Supplemental Disclosures of Non-Cash Flow Information: Setup of ROU asset and lease liability upon adoption of ASC 842 $ — $ 9,380 $ — Lease liabilities arising from obtaining right-of-use assets 4,123 — — Reclassification of deferred offering costs paid in 2018 from other assets to additional paid-in-capital — 788 — Subordinated debt issuance costs accrued but not yet paid in 2019 — 315 — Reclassification of lease intangibles, cease-use liability and deferred rent liability to ROU asset upon adoption of ASC 842 — (48) — Net foreclosure of other real estate owned and repossessed assets 2,764 5,995 8 Loans held for investment transferred to loans held for sale 4,511 — — Reclassification of branch assets held for sale to loans held for investment — 26,171 — Reclassification of branch liabilities held for sale to interest-bearing transaction and savings deposits — 1,713 — Year Ended December 31, 2020 2019 2018 Noncash assets acquired 1 Debt securities $ — $ 660,792 $ — Equity securities — 12,322 — FHLB and FRB stock — 29,490 — Loans held for sale — 9,360 — Loans held for investment — 3,245,248 (4,050) Accrued interest receivable 2 — 11,395 — Bank-owned life insurance — 56,841 — Bank premises, furniture and equipment — 36,855 1,162 Investment in unconsolidated subsidiaries — 666 — Intangible assets, net — 65,718 (956) Goodwill — 209,393 1,995 Other assets — 11,124 1,806 Right of use asset 2 — 9,373 — Deferred taxes 2 — 11,783 — Current taxes 2 — 1,812 — Assets held for sale — 85,307 — Total assets $ — $ 4,457,479 $ (43) Noncash liabilities assumed Noninterest-bearing deposits $ — $ 825,364 $ 303 Interest-bearing deposits — 1,300,825 — Certificates and other time deposits — 1,346,915 — Accounts payable and other liabilities — 26,491 — Lease liability 3 — 9,373 — Accrued interest payable — 5,181 (260) Securities sold under agreements to repurchase — 3,226 — Advances from FHLB — 300,000 — Subordinated debentures and subordinated notes — 56,233 — Liabilities held for sale — 52,682 — Total liabilities $ — $ 3,926,290 $ 43 Total equity — — — 29,532,957 shares of common stock exchanged in connection with Green $ — $ 631,415 $ — 497,594 share of common stock exchanged in connection with Green vested RSUs $ — $ 5,801 $ — 1 Noncash assets acquired and noncash liabilities assumed during 2019 relate to our acquisition of Green. Noncash assets acquired and noncash liabilities assumed during 2018 relate to our acquisitions of Sovereign and Liberty. 2 Accrued interest receivable, right of use asset, deferred taxes and current taxes are included in "Other assets" in our consolidated balance sheets for the year ended December 31, 2019. 3 Lease liability is included in "Accounts payable and other liabilities" in our consolidated balance sheets for the year ended December 31, 2019.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	12 Months Ended
	Dec. 31, 2020
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements ASU 2019-12, "Income Taxes (Topic 740)" ("ASU 2019-12") simplifies the accounting for income taxes by removing certain exceptions and improves the consistent application of GAAP by clarifying and amending other existing guidance. ASU 2019-012 will be effective for us on January 1, 2021 and is not expected to have any material impact on our consolidated financial statements. ASU 2020-04, " Reference Rate Reform (Topic 848) : Facilitation of the Effects of Reference Rate Reform on Financial Reporting" ("ASU 2020-04") amendments provide optional guidance for a limited time to ease the potential burden in accounting for reference rate reform. The new guidance provides optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships and other transactions affected by reference rate reform if certain criteria are met. The amendments apply only to contracts and hedging relationships that reference the London Interbank Offered Rate ("LIBOR") or another reference rate expected to be discontinued due to reference rate reform. These amendments are effective upon issuance and may be applied prospectively to contract modifications made and hedging relationships entered into or evaluated on or before December 31, 2022. The Company is currently evaluating the amended guidance and the impact on its consolidated financial statements and related disclosures. ASU 2020-08, Codification Improvements to Subtopic 310-20, Receivables - Nonrefundable Fees and Other Costs ("ASU 2020-08") clarifies the accounting for the amortization of purchase premiums for callable debt securities with multiple call dates. ASU 2020-8 will be effective for us on January 1, 2021 and is not expected to have a significant impact on our consolidated financial statements and related disclosures.

Share Transactions

Share Transactions	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Share Transactions	Share Transactions On January 28, 2019, the Company's Board of Directors (the “Board”) authorized a stock buyback program (the "Stock Buyback Program") pursuant to which the Company could, from time to time, purchase up to $50,000 of its outstanding common stock in the aggregate. The Board authorized increases of $50,000 on September 3, 2019 and $75,000 on December 12, 2019, resulting in an aggregate authorization to purchase up to $175,000 under the Stock Buyback Program. The Board also authorized an extension of the original expiration date from December 31, 2019 to December 31, 2020 and then to March 31, 2021. The shares may be repurchased in the open market or in privately negotiated transactions from time to time, depending upon market conditions and other factors, and in accordance with applicable regulations of the Securities and Exchange Commission (“SEC”). The Stock Buyback Program does not obligate the Company to purchase any shares. The Stock Buyback Program may be terminated or amended by the Board at any time prior to its expiration. During the year ended December 31, 2020, 2,349,639 shares were repurchased through the Stock Buyback Program and held as treasury stock at an average price of $24.51. During the year ended December 31, 2019, 3,802,711 shares were repurchased through the Stock Buyback Program and held as treasury stock at an average price of $24.86 per share.

Securities

Securities	12 Months Ended
	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Securities	Securities Equity Securities With a Readily Determinable Fair Value The Company held equity securities with a fair value of $11,363 and $11,122 at December 31, 2020 and 2019, respectively. The Company realized a loss of $8 on equity securities with a readily determinable fair value during the year ended December 31, 2020. The Company had no realized gains or losses on equity securities with a readily determinable fair value during the same period in 2019 and 2018. The gross unrealized gain recognized on equity securities with readily determinable fair values recorded in other noninterest income in the Company’s consolidated statements of income were as follows: 2020 2019 2018 Unrealized gain recognized on equity securities with a readily determinable fair value $ 480 $ 325 $ — Equity Securities Without a Readily Determinable Fair Value The Company held equity securities without a readily determinable fair values and measured at cost of $3,575 at December 31, 2020 and 2019. Debt Securities Debt securities have been classified in the consolidated balance sheets according to management’s intent. The amortized cost, related gross unrealized gains and losses, allowance for credit losses and the fair value of available for sale and held to maturity debt securities are as follows: December 31, 2020 Gross Gross Amortized Unrealized Unrealized Allowance for Cost Gains Losses Credit Losses Fair Value Available for Sale Corporate bonds $ 173,050 $ 6,417 $ 1,297 — $ 178,170 Municipal securities 115,533 10,129 6 — 125,656 Mortgage-backed securities 240,320 16,047 42 — 256,325 Collateralized mortgage obligations 388,080 20,895 66 — 408,909 Asset-backed securities 52,335 2,934 — — 55,269 $ 969,318 $ 56,422 $ 1,411 $ — $ 1,024,329 Gross Gross Amortized Unrealized Unrealized Allowance for Cost Gains Losses Credit Losses Fair Value Held to maturity Mortgage-backed securities $ 6,982 $ 849 $ — — $ 7,831 Collateralized mortgage obligations 1,620 103 — — 1,723 Municipal securities 22,270 2,459 — — 24,729 $ 30,872 $ 3,411 $ — — $ 34,283 The Company did not transfer any debt securities from available for sale to held to maturity at fair value during the year ended December 31, 2020. December 31, 2019 Gross Gross Amortized Unrealized Unrealized Cost Gains Losses Fair Value Available for Sale Corporate bonds 76,997 1,974 — 78,971 Municipal securities 74,956 3,724 — 78,680 Mortgage-backed securities 288,938 9,512 260 298,190 Collateralized mortgage obligations 431,276 6,465 1,503 436,238 Asset-backed securities 69,964 2,322 — 72,286 $ 942,131 $ 23,997 $ 1,763 $ 964,365 Held to maturity Mortgage-backed securities $ 8,621 $ 452 $ — $ 9,073 Collateralized mortgage obligations 1,809 43 — 1,852 Municipal securities 22,535 1,350 — 23,885 $ 32,965 $ 1,845 $ — $ 34,810 The Company reassessed the classification of certain investments and, effective January 1, 2019, the Company transferred $4,758 of municipal securities and $3,045 of mortgage-backed securities from available for sale to held to maturity at fair value. The related unrealized gain was minimal. No gain or loss was recorded at the time of the transfer. The following tables disclose the Company’s available for sale debt securities in an unrealized loss position for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time that individual debt securities have been in a continuous loss position: December 31, 2020 Less Than 12 Months 12 Months or More Totals Fair Unrealized Fair Unrealized Fair Unrealized Value Loss Value Loss Value Loss Available for Sale Corporate bonds 31,953 1,297 — — 31,953 1,297 Municipal securities $ 2,667 $ 6 $ — $ — $ 2,667 $ 6 Mortgage-backed securities 34,402 108 — — 34,402 108 $ 69,022 $ 1,411 $ — $ — $ 69,022 $ 1,411 December 31, 2019 Less Than 12 Months 12 Months or More Totals Fair Unrealized Fair Unrealized Fair Unrealized Value Loss Value Loss Value Loss Available for Sale Municipal securities 468 1 — — 468 1 Mortgage-backed securities 28,883 370 — — 28,883 370 Collateralized mortgage obligations 109,749 1,392 — — 109,749 1,392 $ 139,100 $ 1,763 $ — $ — $ 139,100 $ 1,763 Management evaluates available for sale debt securities in unrealized loss positions to determine whether the impairment is due to credit-related factors or noncredit-related factors. Consideration is given to (1) the extent to which the fair value is 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. The number of available for sale debt securities in an unrealized loss position totaled 11 at December 31, 2020 and December 31, 2019. 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. Accordingly, as of December 31, 2020, management believes that the unrealized losses detailed in the previous table are due to noncredit-related factors, including changes in interest rates and other market conditions, and therefore no losses have been recognized in the Company’s consolidated statements of income. The amortized costs and estimated fair values of available for sale debt securities, by contractual maturity, as of the dates indicated, are shown in the table 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. Mortgage-backed securities, collateralized mortgage obligations and asset-backed securities typically are issued with stated principal amounts, and the securities are backed by pools of mortgage loans and other loans that have varying maturities. The terms of mortgage-backed securities, collateralized mortgage obligations and asset-backed securities thus approximates the terms of the underlying mortgages and loans and can vary significantly due to prepayments. Therefore, these securities are not included in the maturity categories below. December 31, 2020 Available For Sale Held to Maturity Amortized Fair Amortized Fair Cost Value Cost Value Due from one year to five years $ 4,935 $ 5,139 $ — $ — Due from five years to ten years 154,576 158,510 3,334 3,591 Due after ten years 129,072 140,177 18,936 21,138 288,583 303,826 22,270 24,729 Mortgage-backed securities and collateralized mortgage obligations 628,400 665,234 8,602 9,554 Asset-backed securities 52,335 55,269 — — $ 969,318 $ 1,024,329 $ 30,872 $ 34,283 December 31, 2019 December 31, 2019 Available For Sale Held to Maturity Amortized Fair Amortized Fair Cost Value Cost Value Due in one year or less $ — $ — $ — $ — Due from one year to five years 4,904 5,100 — — Due from five years to ten years 74,596 76,403 1,204 1,219 Due after ten years 72,453 76,148 21,331 22,666 151,953 157,651 22,535 23,885 Mortgage-backed securities and collateralized mortgage obligations 720,214 734,428 10,430 10,925 Asset-backed securities 69,964 72,286 — — $ 942,131 $ 964,365 $ 32,965 $ 34,810 Proceeds from sales of debt securities available for sale and gross realized gains and losses for the years ended December 31, 2020, 2019 and 2018 were as follows: December 31, 2020 2019 2018 Proceeds from sales $ 113,771 $ 567,718 $ 40,822 Gross realized gains 2,879 532 335 Gross realized losses 256 2,384 399

Loans Held for Investment and A

Loans Held for Investment and Allowance for Credit Losses	12 Months Ended
	Dec. 31, 2020
Receivables [Abstract]
Loans Held for Investment and Allowance for Credit Losses	Loans Held for Investment and Allowance for Credit Losses Loans held for investment in the accompanying consolidated balance sheets are summarized as follows: December 31, 2020 2019 Loans held for investment, carried at amortized cost: Real estate: Construction and land $ 693,030 $ 629,374 Farmland 13,844 16,939 1 - 4 family residential 524,344 549,811 Multi-family residential 424,962 320,041 OOCRE 717,472 706,782 NOOCRE 1,904,132 1,784,201 Commercial 1,559,546 1,712,838 MW 577,594 183,628 Consumer 13,000 17,457 6,427,924 5,921,071 Deferred loan (fees) costs, net (2,468) 134 Allowance for credit losses (105,084) (29,834) Loans held for investment carried at amortized cost, net $ 6,320,372 $ 5,891,371 Loans held for investment, carried at fair value: PPP Loans $ 358,042 $ — Total loans held for investment, net $ 6,678,414 $ 5,891,371 Included in the net loan portfolio as of December 31, 2020 and 2019 is an accretable discount related to purchased performing and PCD loans, previously called PCI loans prior to the Company’s adoption of ASU 2016-13, acquired within a business combination in the approximate amounts of $15,526 and $57,811, respectively. The discount is being accreted into income on a level-yield basis over the life of the loans. For the years ended December 31, 2020 and 2019, the Company recognized $5,081 and $13,522, respectively, of accretion on PCD/PCI loans into interest income. In addition, included in the net loan portfolio as of December 31, 2020 and 2019 is a discount on retained loans from sale of originated SBA loans of $3,215 and $2,193, respectively. The majority of the Company's loan portfolio consists of loans to businesses and individuals in the Dallas-Fort Worth metroplex and the Houston metropolitan area. This geographic concentration subjects the loan portfolio to the general economic conditions within these areas. The risks created by this concentration have been considered by management in the determination of the adequacy of the ACL. Management believes the ACL was adequate to cover estimated losses on loans as of December 31, 2020 and 2019. PPP loans held for investment, carried at fair value Additionally, included in total loans held for investment, as of December 31, 2020, was $358,042 of PPP loans, which are carried at fair value. During the year ended December 31, 2020, the Company recognized upfront fee income of $12,811 which is included in government guaranteed loan income, net on the accompanying consolidated statements of income. During the year ended December 31, 2020, the Company recognized a valuation adjustment of $1,799 on PPP loans which is included in government guaranteed loan income, net on the accompanying consolidated statements of income and in change in fair value of government guaranteed loans using fair value option on the accompanying consolidated statements of cash flows. These PPP loans were originated through the SBA as a result of the Coronavirus Aid, Relief, and Economic Security (“CARES”) Act and are considered 100% forgiven if certain criteria are met by the borrowers. As of December 31, 2020, we do not believe any of the Company’s PPP loans will not meet such criteria. Allowance for Credit Losses The Company’s estimate of the ACL reflects losses expected over the remaining contractual life of the assets. The contractual term does not consider extensions, renewals or modifications unless the Company has identified an expected troubled debt restructuring. The activity in the ACL related to loans held for investment is as follows: December 31, 2020 Construction and Land Farmland Residential Multifamily OOCRE NOOCRE Commercial Consumer Total Balance at beginning of year $ 3,821 $ 62 $ 2,143 $ 1,200 $ 1,991 $ 8,126 $ 12,369 $ 122 $ 29,834 Impact of adopting ASC 326 non-PCD loans (707) 4 3,716 628 3,406 5,138 7,025 217 19,427 Impact of adoption ASC 326 PCD loans 645 — 908 — 7,682 2,037 8,335 103 19,710 Credit loss expense non-PCD loans 4,554 (10) 1,720 4,403 4,364 15,397 24,413 (178) 54,663 Credit loss expense PCD loans (545) — (378) — (5,303) 7,404 817 (18) 1,977 Charge-offs — — (18) — (2,421) (2,865) (15,507) (162) (20,973) Recoveries — — 57 — — — 102 287 446 Ending Balance $ 7,768 $ 56 $ 8,148 $ 6,231 $ 9,719 $ 35,237 $ 37,554 $ 371 $ 105,084 December 31, 2019 Construction and Land Farmland Residential Multifamily OOCRE NOOCRE Commercial Consumer Total Balance at beginning of year $ 2,186 $ 58 $ 1,614 $ 361 $ 1,393 $ 5,070 $ 8,554 $ 19 $ 19,255 Credit Loss Expense 1,635 4 619 839 598 3,056 14,487 276 21,514 Charge-offs — — (157) — — — (10,898) (265) (11,320) Recoveries — — 67 — — — 226 92 385 Ending Balance $ 3,821 $ 62 $ 2,143 $ 1,200 $ 1,991 $ 8,126 $ 12,369 $ 122 $ 29,834 December 31, 2018 Construction and Land Farmland Residential Multifamily OOCRE NOOCRE Commercial Consumer Total Balance at beginning of year $ 1,270 $ 45 $ 1,195 $ 278 $ 1,113 $ 3,297 $ 5,588 $ 22 $ 12,808 Credit Loss Expense 916 13 419 83 280 1,773 3,100 19 6,603 Charge-offs — — — — — — (175) (22) (197) Recoveries — — — — — — 41 — 41 Ending Balance $ 2,186 $ 58 $ 1,614 $ 361 $ 1,393 $ 5,070 $ 8,554 $ 19 $ 19,255 A loan is considered collateral-dependent when the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the operation or sale of the collateral. The following table presents the amortized cost basis of collateral dependent loans, which are individually evaluated to determine expected credit losses, and the related ACL allocated to these loans as of December 31, 2020: Real Property (1) ACL Allocation Real estate: 1 - 4 family residential $ 199 $ 11 OOCRE — — NOOCRE 16,080 — Commercial 8,666 4,668 Consumer 143 50 Total $ 25,088 $ 4,729 (1) Loans reported exclude PCD loans that transitioned upon adoption of ASC 326 and accounted for on a pooled basis. Refer to Note 1 for further discussion. The following table presents loans individually and collectively evaluated for impairment, as well as PCI loans, and their respective allowance for credit loss allocations as of December 31, 2019, as determined in accordance with ASC 310 prior to the Company’s adoption of ASU 2016-13: December 31, 2019 Real Estate Construction, Residential Commercial Real Estate Commercial Consumer Total Loans individually evaluated for impairment $ 567 $ 156 $ 21,644 $ 5,188 $ 61 $ 27,616 Loans collectively evaluated for impairment 641,799 865,927 2,372,485 1,869,259 17,267 5,766,737 PCI loans 3,947 3,769 96,854 22,019 129 126,718 Total $ 646,313 $ 869,852 $ 2,490,983 $ 1,896,466 $ 17,457 $ 5,921,071 ACL Allocations Loans individually evaluated for impairment $ 128 $ 37 $ 395 $ 1,042 $ — $ 1,602 Loans collectively evaluated for impairment 3,755 3,306 9,702 10,754 122 27,639 PCI loans — — 20 573 — 593 Total $ 3,883 $ 3,343 $ 10,117 $ 12,369 $ 122 $ 29,834 The following table presents information on impaired loans as of December 31, 2019, as determined in accordance with ASC 310 prior to the Company’s adoption of ASU 2016-13: December 31, 2019 (1) Unpaid Recorded Recorded Total Related Average Real estate: Construction and land $ 567 $ — $ 567 $ 567 $ 128 $ 1,793 Farmland — — — — — — 1 - 4 family residential 156 — 156 156 37 158 Multi-family residential — — — — — — Commercial real estate 21,644 21,040 604 21,644 395 22,529 Commercial 5,188 2,011 3,177 5,188 1,042 8,546 Consumer 61 61 — 61 — 62 Total $ 27,616 $ 23,112 $ 4,504 $ 27,616 $ 1,602 $ 33,088 (1) Loans reported exclude PCI loans. Nonaccrual and Past Due Loans Loans are considered past due if the required principal and interest payments have not been received as of the date such payments were due. Loans are placed on nonaccrual status when, in management’s opinion, the borrower may be unable to meet payment obligations as they become due, as well as when required by regulatory provisions. Loans may be placed on nonaccrual status regardless of whether or not such loans are considered past due. When interest accrual is discontinued, all unpaid accrued interest is reversed. Interest income is subsequently recognized only to the extent cash payments are received in excess of principal due. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. Nonaccrual loans, aggregated by class of loans, as of December 31, 2020 and 2019, were as follows: December 31, December 31, Nonaccrual Nonaccrual With No ACL Nonaccrual Nonaccrual With No ACL Real estate: Construction and land $ — $ — $ 567 $ — 1 - 4 family residential 3,308 3,199 1,581 1,581 OOCRE 6,266 5,645 3,029 2,778 NOOCRE 40,830 19,213 18,876 18,876 Commercial 29,318 1,015 5,672 2,747 Consumer 1,374 1,220 54 54 Total $ 81,096 $ 30,292 $ 29,779 $ 26,036 There were $1,508 of PCD loans that are not accounted for on a pooled basis included in nonaccrual loans at December 31, 2020. There were no PCD loans included in nonaccrual loans at December 31, 2019. During the year ended December 31, 2020 and 2019, interest income not recognized on non-accrual loans, excluding PCD/PCI loans, was $3,368 and $1,672, respectively. An age analysis of past due loans, aggregated by class of loans, as of December 31, 2020 and 2019 is as follows: December 31, 2020 30 to 59 Days 60 to 89 Days 90 Days or Greater Total Past Due Total Current PCD Total Total 90 Days Past Due and Still Accruing (1) Real estate: Construction and land $ — $ — $ — $ — $ 690,345 $ 2,685 $ 693,030 $ — Farmland — — — — 13,844 — 13,844 — 1 - 4 family residential 2,338 122 4,802 7,262 508,341 8,741 524,344 1,670 Multi-family residential — — — — 424,962 — 424,962 — OOCRE 2,278 2,143 2,814 7,235 672,246 37,991 717,472 1,280 NOOCRE 7,675 2,911 17,586 28,172 1,832,784 43,176 1,904,132 — Commercial 1,983 1,431 20,360 23,774 1,516,312 19,460 1,559,546 1,230 MW — — — — 577,594 — 577,594 — Consumer 75 77 1,338 1,490 11,308 202 13,000 24 $ 14,349 $ 6,684 $ 46,900 $ 67,933 $ 6,247,736 $ 112,255 $ 6,427,924 $ 4,204 (1) Loans 90 days past due and still accruing excludes $32,627 of pooled PCD loans as of December 31, 2020 that transitioned upon adoption of ASC 326. Refer to Note 1 for further discussion. December 31, 2019 30 to 59 Days 60 to 89 Days 90 Days or Greater Total Past Due Total Current PCI Total Total 90 Days Past Due and Still Accruing (1) Real estate: Construction and land $ — $ — $ — $ — $ 629,374 $ 3,947 $ 629,374 $ 800 Farmland — — — — 16,939 — 16,939 — 1 - 4 family residential 2,595 520 1,155 4,270 541,772 3,769 549,811 959 Multi-family residential — — — — 320,041 — 320,041 — Commercial real estate 12 3,834 868 4,714 2,389,415 96,854 2,490,983 511 Commercial 3,572 1,707 1,497 6,776 1,684,043 22,019 1,712,838 1,317 Consumer 30 2,641 140 2,811 14,646 129 17,457 73 $ 6,209 $ 8,702 $ 3,660 $ 18,571 $ 5,596,230 $ 126,718 $ 5,737,443 $ 3,660 (1) Loans 90 days past due and still accruing excludes $41,328 of PCI loans accounted for on a pooled basis as of December 31, 2019. Loans 90 days past due and still accruing interest were $4,204 and $3,660 as of December 31, 2020 and December 31, 2019, respectively. These loans are considered well-secured and in the process of collection as of the reporting date with plans in place for the borrowers to bring the loans fully current. The Company believes that it will collect all principal and interest due on each of the loans 90 days past due and still accruing. Troubled Debt Restructuring Modifications of terms for the Company’s loans and their inclusion as TDRs are based on individual facts and circumstances. Loan modifications that are included as TDRs may involve a reduction of the stated interest rate of the loan, an extension of the maturity date at a stated rate of interest lower than the current market rate for new debt with similar risk, or deferral of principal payments, regardless of the period of the modification. The recorded investment in TDRs was $29,157 and $2,142 as of December 31, 2020 and 2019, respectively. The following table presents the pre- and post-modification amortized cost of loans modified as TDRs during the twelve months ended December 31, 2020. There were thirteen and two new TDRs during the years ended December 31, 2020 and 2019 . The Company did not grant principal reductions or interest rate concessions on any TDRs during the twelve months ended December 31, 2020. The terms of certain loans modified as TDRs during the year ended December 31, 2020 and December 31, 2019 are summarized in the following tables: During the year ended December 31, 2020 Adjusted Payment Structure Payment Deferrals Total Modifications Number of Loans OOCRE $ 5,326 $ — $ 5,326 5 NOOCRE — 19,454 19,454 4 Commercial 1,419 1,345 2,764 4 Total $ 6,745 $ 20,799 $ 27,544 13 During the year ended December 31, 2019 Adjusted Payment Structure Payment Deferrals Total Modifications Number of Loans Commercial $ 919 $ 115 $ 1,034 2 There were no loans modified as TDR loans within the previous 12 months and for which there was a payment default during the years ended December 31, 2020 and 2019. A default for purposes of this disclosure is a TDR loan in which the borrower is 90 days past due or results in the foreclosure and repossession of the applicable collateral. Interest income recorded during the years ended December 31, 2020 on TDR loans and interest income that would have been recorded had the terms of the loans not been modified was $1,537. Interest income recorded during the year ended December 31, 2019 on TDR loans and interest income that would have been recorded had the terms of the loans not been modified was minimal. The Company has not committed to lend additional amounts to customers with outstanding loans classified as TDRs as of December 31, 2020 or December 31, 2019. For the year ended December 31, 2020, the Company had 754 modifications of loans with aggregate principal balances of $1,126,975 that qualified for temporary suspension of TDR requirements under Section 4013 of the CARES Act, as amended by the Consolidated Appropriations Act, 2021, and related interagency guidance of the federal banking agencies. As of February 18, 2021, the Company had $26,111 in loans with remaining deferments. Credit Quality Indicators From a credit risk standpoint, the Company classifies its loans in one of the following categories: (i) pass, (ii) special mention, (iii) substandard or (iv) doubtful. Loans classified as loss are charged-off. Loans not rated special mention, substandard, doubtful or loss are classified as pass loans. The classifications of loans reflect a judgment about the risks of default and loss associated with the loan. The Company reviews the ratings on criticized credits monthly. Ratings are adjusted to reflect the degree of risk and loss that is felt to be inherent in each credit as of each monthly reporting period. All classified credits are evaluated for impairment. If impairment is determined to exist, a specific reserve is established. The Company’s methodology is structured so that specific reserves are increased in accordance with deterioration in credit quality (and a corresponding increase in risk and loss) or decreased in accordance with improvement in credit quality (and a corresponding decrease in risk and loss). Credits rated special mention show clear signs of financial weaknesses or deterioration in credit worthiness, however, such concerns are generally not so pronounced that the Company expects to experience significant loss within the short-term. Such credits typically maintain the ability to perform within standard credit terms and credit exposure is not as prominent as credits with a lower rating. Credits rated substandard are those in which the normal repayment of principal and interest may be, or has been, jeopardized by reason of adverse trends or developments of a financial, managerial, economic or political nature, or important weaknesses which exist in collateral. A protracted workout on these credits is a distinct possibility. Prompt corrective action is therefore required to strengthen the Company’s position, and/or to reduce exposure and to assure that adequate remedial measures are taken by the borrower. Credit exposure becomes more likely in such credits and a serious evaluation of the secondary support to the credit is performed. Credits rated doubtful are those in which full collection of principal appears highly questionable, and in which some degree of loss is anticipated, even though the ultimate amount of loss may not yet be certain and/or other factors exist which could affect collection of debt. Based upon available information, positive action by the Company is required to avert or minimize loss. Credits rated doubtful are generally also placed on nonaccrual. Credits classified as PCD are those that, at acquisition date, have experienced a more-than-insignificant deterioration in credit quality since origination. All loans considered to be PCI loans prior to January 1, 2020 were converted to PCD loans upon adoption of ASC 326. The Company elected to maintain pools of loans that were previously accounted for under ASC 310-30 and will continue to account for these pools as a unit of account. Loans are only removed from the existing pools if they are foreclosed, written off, paid off, or sold. The Company considers the guidance in ASC 310-20 when determining whether a modification, extension or renewal of a loan constitutes a current period origination. Generally, current period renewals of credit are reunderwritten at the point of renewal and considered current period originations for purposes of the table below. Based on the most recent analysis performed, the risk category of loans by class of loans based on year or origination is as follows: Term Loans Amortized Cost Basis by Origination Year 1 2020 2019 2018 2017 2016 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total As of December 31, 2020 Construction and land: Pass $ 155,358 $ 282,497 $ 179,372 $ 11,791 $ 9,938 $ 27,147 $ 21,066 $ — $ 687,169 Special mention — — 2,666 — — — — — 2,666 Substandard — — 510 — — — — — 510 PCD — — — — — 2,685 — — 2,685 Total construction and land $ 155,358 $ 282,497 $ 182,548 $ 11,791 $ 9,938 $ 29,832 $ 21,066 $ — $ 693,030 Farmland: Pass $ 867 $ 972 $ 3,367 $ 3,688 $ — $ 3,656 $ 1,294 $ — $ 13,844 Total farmland $ 867 $ 972 $ 3,367 $ 3,688 $ — $ 3,656 $ 1,294 $ — $ 13,844 1 - 4 family residential: Pass $ 120,580 $ 79,617 $ 91,890 $ 49,338 $ 31,936 $ 115,797 $ 19,065 $ 2,968 $ 511,191 Special mention — 1,077 154 760 — 687 — — 2,678 Substandard — — 142 668 — — 924 — 1,734 PCD — — — — — 8,741 — — 8,741 Total 1 - 4 family residential $ 120,580 $ 80,694 $ 92,186 $ 50,766 $ 31,936 $ 125,225 $ 19,989 $ 2,968 $ 524,344 Multi-family residential: Pass $ 107,332 $ 106,559 $ 139,721 $ 18,722 $ 32,672 $ 7,218 $ 58 $ — $ 412,282 Special mention — — 12,680 — — — — — 12,680 Total multi-family residential $ 107,332 $ 106,559 $ 152,401 $ 18,722 $ 32,672 $ 7,218 $ 58 $ — $ 424,962 OOCRE: Pass $ 113,741 $ 65,262 $ 75,940 $ 79,253 $ 79,202 $ 176,668 $ 5,532 $ — $ 595,598 Special mention — 948 22,725 3,701 12,860 4,326 — — 44,560 Substandard 370 — 10,579 3,830 11,315 6,822 201 6,206 39,323 PCD — — — — 7,951 30,040 — — 37,991 Total OOCRE $ 114,111 $ 66,210 $ 109,244 $ 86,784 $ 111,328 $ 217,856 $ 5,733 $ 6,206 $ 717,472 NOOCRE: Pass $ 361,246 $ 255,976 $ 445,079 $ 90,738 $ 174,893 $ 309,572 $ 13,413 $ — $ 1,650,917 Special mention 101 31,714 37,572 19,262 25,997 37,951 493 — 153,090 Substandard 1,226 0 9,850 0 4,562 4,108 — 23,098 14,105 — 56,949 PCD — — 18,744 — 6,652 17,780 — — 43,176 Total NOOCRE $ 362,573 $ 297,540 $ 505,957 $ 114,108 $ 207,542 $ 388,401 $ 28,011 $ — $ 1,904,132 Commercial: Pass $ 251,004 $ 158,158 $ 112,961 $ 50,734 $ 19,821 $ 41,856 $ 758,832 $ 13,400 $ 1,406,766 Special mention 1,306 2,539 8,224 10,033 1,201 2,165 26,922 3,670 56,060 Substandard 722 4,487 23,245 3,772 7,216 2,083 30,460 5,275 77,260 PCD — — — 3,382 4,196 11,882 — — 19,460 Total commercial $ 253,032 $ 165,184 $ 144,430 $ 67,921 $ 32,434 $ 57,986 $ 816,214 $ 22,345 $ 1,559,546 MW: Pass $ — $ — $ — $ — $ — $ — $ 577,594 $ — $ 577,594 Total MW $ — $ — $ — $ — $ — $ — $ 577,594 $ — $ 577,594 Consumer: Pass $ 2,489 $ 1,216 $ 1,038 $ 3,899 $ 887 $ 353 $ 1,475 $ — $ 11,357 Special mention — — — — 25 227 — — 252 Substandard — — — 60 — 66 1,063 — 1,189 PCD — — — 36 — 166 — — 202 Total consumer $ 2,489 $ 1,216 $ 1,038 $ 3,995 $ 912 $ 812 $ 2,538 $ — $ 13,000 Total Pass $ 1,112,617 $ 950,257 $ 1,049,368 $ 308,163 $ 349,349 $ 682,267 $ 1,398,329 $ 16,368 $ 5,866,718 Total Special Mention 1,407 36,278 84,021 33,756 40,083 45,356 27,415 3,670 271,986 Total Substandard 2,318 14,337 39,038 12,438 18,531 32,069 46,753 11,481 176,965 Total PCD — — 18,744 3,418 18,799 71,294 — — 112,255 Total $ 1,116,342 $ 1,000,872 $ 1,191,171 $ 357,775 $ 426,762 $ 830,986 $ 1,472,497 $ 31,519 $ 6,427,924 . 1 Term loans amortized cost basis by origination year excludes $2,468 of deferred loan fees, net. The following table summarizes the Company’s internal ratings of its loans, including PCI loans, as of December 31, 2019: December 31, 2019 Pass Special Substandard Doubtful PCI Total Real estate: Construction and land $ 618,773 $ 3,965 $ 2,689 $ — $ 3,947 $ 629,374 Farmland 16,939 — — — — 16,939 1 - 4 family residential 541,787 795 3,460 — 3,769 549,811 Multi-family residential 320,041 — — — — 320,041 Commercial real estate 2,332,357 23,494 38,278 — 96,854 2,490,983 Commercial 1,610,150 51,999 28,670 — 22,019 1,712,838 MW 183,628 — — — — 183,628 Consumer 17,106 40 182 — 129 17,457 Total $ 5,640,781 $ 80,293 $ 73,279 $ — $ 126,718 $ 5,921,071 Purchased Credit Impaired Loans (Prior to the Adoption of ASU 2016-13) Loans acquired with evidence of credit quality deterioration at acquisition, for which it was probable that the Company would not be able to collect all contractual amounts due, were accounted for as PCI loans. The carrying amount of PCI loans included in the consolidated balance sheets and the related outstanding balances at December 31, 2019 are set forth in the table below. The outstanding balance represents the total amount owed, including accrued but unpaid interest, and any amounts previously charged off. December 31, 2019 Carrying amount $ 126,125 Outstanding balance 157,417 Changes in the accretable yield for PCI loans for the years ended December 31, 2019 and 2018 are included in table below. Year Ended December 31, 2019 Year Ended December 31, 2018 Balance at beginning of period $ 18,747 $ 2,723 Additions 19,870 1,459 Reclassifications from nonaccretable 12,719 19,162 Accretion (13,112) (4,597) Balance at year-end $ 38,224 $ 18,747 During the year ended December 31, 2019, the Company received cash collections in excess of expected cash flows on PCI loans accounted for individually and not aggregated into loan pools of $440. Servicing Assets The Company was servicing loans of approximately $264,019 and $205,210 as of December 31, 2020 and 2019, respectively. A summary of the changes in the related servicing assets are as follows: Year Ended December 31, 2020 2019 Balance at beginning of year $ 3,113 $ 1,304 Servicing assets acquired through acquisition — 2,382 Increase from loan sales 1,121 1,253 Servicing asset impairment, net of recoveries (368) (188) Amortization charged as a reduction to income (503) (1,638) Balance at year-end $ 3,363 $ 3,113 Fair value of servicing assets is estimated by discounting estimated future cash flows from the servicing assets using discount rates that approximate current market rates over the expected lives of the loans being serviced. A valuation allowance is recorded when the fair value is below the carrying amount of the asset. As of December 31, 2020 and 2019 there was a valuation allowance of $556 and $188, respectively. The Company may also receive a portion of subsequent interest collections on loans sold that exceed the contractual servicing fees. In that case, the Company records an interest-only strip based on its relative fair market value and the other components of the loans. There was no interest-only strip receivable recorded at December 31, 2020 and 2019 .

Bank Premises and Equipment

Bank Premises and Equipment	12 Months Ended
	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Bank Premises and Equipment	Bank Premises and Equipment Bank premises and equipment in the accompanying consolidated balance sheets are summarized as follows: December 31, 2020 2019 Building and improvements $ 61,035 $ 60,959 Site improvements 3,303 2,633 Tenant improvements 779 744 Leasehold improvements 5,923 5,542 Land 44,078 45,878 Furniture, fixtures and equipment 17,751 16,073 Construction in Progress 630 608 133,499 132,437 Less accumulated depreciation and amortization 18,436 13,901 $ 115,063 $ 118,536

Leases

Leases	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Leases	Leases Operating leases in which the Company is the lessee are recorded as operating lease ROU assets and operating lease liabilities, included in other assets and accounts payable and other liabilities, respectively, on the Company’s consolidated balance sheets. The Company does not currently have finance leases in which it is the lessee. Operating lease ROU assets represent the Company’s right to use an underlying asset during the lease term and operating liabilities represent its obligation to make lease payments arising from the lease. ROU assets and operating lease liabilities are recognized at lease commencement based on the present value of the remaining lease payments using a discount rate that represents the Company’s incremental borrowing rate at the lease commencement date. ROU assets are further adjusted for lease incentives. Operating lease expense, which is comprised of amortization of the ROU asset and the implicit interest accreted on the operating lease liability, is recognized on a straight-line basis over the lease term, and is recorded in net occupancy expense in the consolidated statements of income. The Company’s leases related primarily to office space and bank branches with remaining lease terms generally ranging from one five other assets accounts payable and accrued expenses The table below summarizes the Company’s net lease cost: For the Year Ended December 31, 2020 2019 Operating lease cost $ 4,131 $ 4,999 Variable lease cost 810 988 Net lease cost $ 4,941 $ 5,987 The table below summarizes other information related to the Company’s operating leases: For the Year Ended December 31, 2020 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 3,994 $ 4,325 Weighted-average remaining lease term - operating leases, in years 3.3 years 4.4 years Weighted-average discount rate - operating leases 1.56 % 1.59 % A maturity analysis of operating lease liabilities and reconciliation of the undiscounted cash flows to the total operating lease liability is as follows: December 31, 2020 Lease payments due: Within one year $ 3,637 After one but within two years 3,323 After two but within three years 3,246 After three but within four years 2,808 After four but within five years 2,058 After five years 1,325 Total undiscounted cash flows 16,397 Less: Discount on cash flows (796) Total lease liability $ 15,601 There were no sale and leaseback transactions, leveraged leases or lease transactions with related parties during the years ended December 31, 2020 and 2019. As of December 31, 2020, the Company did not have any leases that had not yet commenced, but will create significant rights and obligations for the Company.

Intangible Assets

Intangible Assets	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Intangible Assets Intangible assets in the accompanying consolidated balance sheets are summarized as follows: December 31, 2020 Remaining Weighted Gross Net Amortization Intangible Valuation Accumulated Intangible Period Asset Allowance Amortization Asset Core deposit intangibles 6.0 years $ 81,769 $ — $ 24,011 $ 57,758 Servicing asset 7.4 years 6,847 556 2,928 3,363 Intangible lease assets 1.4 years 4,779 — 4,167 612 $ 93,395 $ 556 $ 31,106 $ 61,733 December 31, 2019 Remaining Weighted Gross Net Amortization Intangible Valuation Accumulated Intangible Period Asset Allowance Amortization Asset Core deposit intangibles 7.0 years $ 81,769 $ — $ 14,206 $ 67,563 Servicing asset 6.7 years 5,726 188 2,425 3,113 Intangible lease assets 1.4 years 4,765 — 3,178 1,587 $ 92,260 $ 188 $ 19,809 $ 72,263 For the years ended December 31, 2020, 2019 and 2018, amortization expense related to intangible assets of approximately $11,297, $12,022 and $4,060 , respectively, is included within amortization of intangibles, occupancy and equipment and other income within the consolidated statements of income. For the years ended December 31, 2020 and 2019, a valuation allowance related to intangible assets was 556 and $188, respectively. There was no impairment expense related to intangible assets as of December 31, 2018. The estimated aggregate future amortization expense for intangible assets remaining as of December 31, 2020 was as follows: Year Amount 2021 $ 10,509 2022 10,439 2023 10,266 2024 10,238 2025 9,800 Thereafter 10,481 $ 61,733

Goodwill

Goodwill	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Goodwill Changes in the carrying amount of goodwill in the accompanying consolidated balance sheets are summarized as follows: December 31, 2020 2019 Balance at beginning of year $ 370,840 $ 161,447 Green acquisition — 209,393 Balance at end of year $ 370,840 $ 370,840

Deposits

Deposits	12 Months Ended
	Dec. 31, 2020
Banking and Thrift [Abstract]
Deposits	Deposits Deposits in the accompanying consolidated balance sheets are summarized as follows: December 31, 2020 2019 Noninterest-bearing demand accounts $ 2,097,099 $ 1,556,500 Interest-bearing demand accounts 453,111 388,877 Savings accounts 106,820 86,079 Limited access money market accounts 2,398,525 2,180,016 Certificates of deposit, greater than $100 1,179,853 1,234,324 Certificates of deposit, less than $100 277,438 448,554 Total $ 6,512,846 $ 5,894,350 As of December 31, 2020, the scheduled maturities of certificates of deposit were as follows: Year Amount 2021 $ 1,194,780 2022 217,932 2023 24,035 2024 12,365 2025 8,179 Total $ 1,457,291 The aggregate amount of demand deposit overdrafts that have been reclassified as loans were $106 and $259 as of December 31, 2020 and 2019, respectively. Brokered deposits at December 31, 2020 and 2019 totaled approximately $199,801 and $312,467, respectively.

Advances from the FHLB

Advances from the FHLB	12 Months Ended
	Dec. 31, 2020
Banking and Thrift [Abstract]
Advances from the Federal Home Loan Bank (FHLB)	Advances from the FHLB Advances from the FHLB totaled $777,718 and $677,870 at December 31, 2020 and 2019, respectively. As of December 31, 2020, the advances were collateralized by a blanket floating lien on certain debt securities and loans, had a weighted average rate of 0.94% and mature on various dates from 2022 to 2035. The Company had the availability to borrow additional funds of approximately $766,437 as of December 31, 2020. Contractual maturities of FHLB advances at December 31, 2020 were as follows: 2022 $ 27,718 2025 and thereafter 750,000 Total $ 777,718

Other Credit Extensions

Other Credit Extensions	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Other Credit Extensions	Other Credit Extensions As of December 31, 2020 the Company maintained five credit facilities with commercial banks that provided federal funds credit extensions with an availability to borrow up to an aggregate amount of $175,000. As of December 31, 2019, the Company maintained three credit facilities with commercial banks that provide federal funds credit extensions with an availability to borrow up to an aggregate amount of approximately $150,000. There were no borrowings under these credit facilities as of December 31, 2020 and 2019. As of December 31, 2020 and 2019, the Company maintained a secured line of credit with the FRB with an availability to borrow approximately $871,485 and $1,022,401, respectively. Approximately $94,222 and $843,861 of

Borrowed Funds

Borrowed Funds	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Borrowed Funds	Borrowed Funds Borrowed funds in the accompanying consolidated balance sheets are as follows: December 31, 2020 2019 Junior subordinated debentures (1) $ 30,244 $ 30,023 Subordinated notes (2) 232,534 115,548 $ 262,778 $ 145,571 (1) Junior subordinated debentures are net of a discount of $3,624 and 3,845 as of December 31, 2020 and 2019, respectively. (2) Subordinated notes include a premium of $1,038 and $2,081 and debt issuance costs of $3,504 and $1,533 as of December 31, 2020 and 2019, respectively. Junior Subordinated Debentures In connection with a previous acquisition, the Company assumed $3,093 in fixed to floating rate junior subordinated debentures underlying common securities and preferred capital securities (the “Parkway Trust Securities”), issued by Parkway National Capital Trust I (“Parkway Trust”), a statutory business trust and acquired wholly owned subsidiary of the Company. The Company became a guarantor and, as such, unconditionally guaranteed payment of accrued and unpaid distributions required to be paid on the Parkway Trust Securities subject to certain exceptions, the redemption price when a capital security is called for redemption and amounts due if Parkway Trust is liquidated or terminated. The Company owns all of the outstanding common securities of the Parkway Trust. The Parkway Trust used the proceeds from the issuance of the Parkway Trust Securities to buy the debentures originally issued by Fidelity Resource Company. These debentures are the Parkway Trust’s only assets and the interest payments from the debentures finance the distributions paid on the Parkway Trust Securities. The Parkway Trust Securities pay cumulative cash distributions quarterly at a rate per annum equal to the 3-month LIBOR plus 1.85%. So long as no event of default leading to an acceleration event has occurred, the Company has the right at any time and from time to time during the term of the debentures to defer payments of interest by extending the interest distribution period for up to twenty consecutive quarterly periods. The effective rate as of December 31, 2020 and 2019 was 2.07% and 3.74%, respectively. The Parkway Trust Securities are subject to mandatory redemption, in whole or in part, upon repayment of the debentures at the stated maturity in the year 2036 or their earlier redemption, in each case at a redemption price equal to the aggregate liquidation preference of the Parkway Trust Securities plus any accumulated and unpaid distributions thereon to the date of redemption. Prior redemption is permitted under certain circumstances. In connection with the acquisition of Sovereign on August 1, 2017, the Company assumed $8,609 in floating rate junior subordinated debentures underlying common securities and preferred capital securities (the “SovDallas Trust Securities”), issued by SovDallas Capital Trust I (“SovDallas Trust”), a statutory business trust and wholly-owned subsidiary of the Company. The Company became a guarantor and, as such, unconditionally guaranteed payment of accrued and unpaid distributions required to be paid on the SovDallas Trust Securities subject to certain exceptions, the redemption price when a capital security is called for redemption and amounts due if SovDallas Trust is liquidated or terminated. The Company also owns all of the outstanding common securities of the SovDallas Trust. The SovDallas Trust invested the total proceeds from the sale of the SovDallas Trust Securities and the investment in common shares in floating rate junior subordinated debentures originally issued by Sovereign. Interest on the SovDallas Trust Securities is payable quarterly at a rate equal to 3-month LIBOR plus 4.00%. Principal payments are due at maturity in July 2038. The effective rate as of December 31, 2020 and 2019 was 4.23% and 6.10%. The SovDallas Trust Securities are guaranteed by the Company and are subject to redemption. The Company may redeem the debt securities, in whole or in part, at any time at an amount equal to the principal amount of the debt securities being redeemed plus any accrued and unpaid interest. In connection with the acquisition of Green on January 1, 2019, the Company assumed $5,155 in floating rate junior subordinated debentures underlying common securities and preferred capital securities (the “Patriot I Trust Securities”), issued by Patriot I Capital Trust I (“Patriot I Trust”), a statutory business trust and wholly-owned subsidiary of the Company. The Company became a guarantor and, as such, unconditionally guaranteed payment of accrued and unpaid distributions required to be paid on the Patriot I Trust Securities subject to certain exceptions, the redemption price when a capital security is called for redemption and amounts due if Patriot I Trust is liquidated or terminated. The Company also owns all of the outstanding common securities of the Patriot I Trust. The Patriot I Trust invested the total proceeds from the sale of the Patriot I Trust Securities and the investment in common shares in floating rate junior subordinated debentures originally issued by Green. Interest on the Patriot I Trust Securities is payable quarterly at a rate equal to 3-month LIBOR plus 1.85%. Principal payments are due at maturity in April 2036. The effective rate as of December 31, 2020 and 2019 was 2.09% and 3.84%. The Patriot I Trust Securities are guaranteed by the Company and are subject to redemption. The Company may redeem the debt securities, in whole or in part, at any time at an amount equal to the principal amount of the debt securities being redeemed plus any accrued and unpaid interest. In connection with the acquisition of Green on January 1, 2019, the Company assumed $17,011 in floating rate junior subordinated debentures underlying common securities and preferred capital securities (the “Patriot II Trust Securities”), issued by Patriot II Capital Trust I (“Patriot II Trust”), a statutory business trust and wholly-owned subsidiary of the Company. The Company became a guarantor and, as such, unconditionally guaranteed payment of accrued and unpaid distributions required to be paid on the Patriot II Trust Securities subject to certain exceptions, the redemption price when a capital security is called for redemption and amounts due if Patriot II Trust is liquidated or terminated. The Company also owns all of the outstanding common securities of the Patriot II Trust. The Patriot II Trust invested the total proceeds from the sale of the Patriot II Trust Securities and the investment in common shares in floating rate junior subordinated debentures originally issued by Sovereign. Interest on the Patriot II Trust Securities is payable quarterly at a rate equal to 3-month LIBOR plus 1.80%. Principal payments are due at maturity in September 2037. The effective rate as of December 31, 2020 and 2019 was 2.02% and 3.69%. The Patriot II Trust Securities are guaranteed by the Company and are subject to redemption. The Company may redeem the debt securities, in whole or in part, at any time at an amount equal to the principal amount of the debt securities being redeemed plus any accrued and unpaid interest. The Parkway Trust Securities, SovDallas Trust Securities, Patriot I Trust Securities and Patriot II Trust Securities qualify as Tier 1 capital, subject to regulatory limitations, under guidelines established by the Federal Reserve. Subordinated Notes During 2013 the Company issued, in the aggregate principal amount of $5,000, subordinated promissory notes (the “Notes”) in a private offering. The Notes were issued to certain entities controlled by an affiliate of the Company. The Notes are unsecured, with interest payable quarterly at a fixed rate of 6.0% per annum, and unpaid principal and interest due at the stated maturity on December 31, 2023. The Notes qualify as Tier 2 Capital, subject to regulatory limitations, under guidelines established by the Federal Reserve. In addition, the Notes may be redeemed, in whole or in part, on any interest payment date that occurs on or after December 23, 2018, subject to approval of the Federal Reserve. The Notes were redeemed in whole on February 14, 2020. In connection with the issuance of the Notes, the Company issued warrants to purchase 25,000 shares of common stock of the Company at an exercise price of $11.00 per share, exercisable at any time, in whole or in part, prior to December 31, 2023. The fair value of the warrants was calculated at $0.80 and is recorded as additional paid-in capital, and the related debt discount is being accreted into interest expense. 10,000 warrants were exercised on February 12, 2020, costing $110,000. In connection with the Company’s acquisition of Green on January 1, 2019, the Company assumed $35,000 of 8.50% Fixed-to-Floating Rate Subordinated Notes (the “8.50% Fixed-to-Floating Notes”) that mature on December 15, 2026. The 8.50% Fixed-to-Floating Notes, which qualify as Tier 2 capital under the Federal Reserve’s capital guidelines, have an interest rate of 8.50% per annum during the fixed-rate period from date of issuance through December 15, 2021. Interest is payable semi-annually on each June 15 and December 15 through December 15, 2021. During the floating rate period from December 15, 2021, to but excluding the maturity date or date of earlier redemption, the 8.50% Fixed-to-Floating Notes will bear interest at a rate per annum equal to three-month LIBOR for the related interest period plus 6.685%, payable quarterly on each March 15, June 15, September 15 and December 15. The 8.50% Fixed-to-Floating Notes are subordinated in right of payment to all of the Company's senior indebtedness and effectively subordinated to all existing and future debt and all other liabilities of the Bank. The Company may elect to redeem the 8.50% Fixed-to-Floating Notes (subject to regulatory approval), in whole or in part, on any early redemption date which is any interest payment date on or after December 15, 2021 at a redemption price equal to 100% of the principal amount plus any accrued and unpaid interest. Other than on an early redemption date, the 8.50% Fixed-to-Floating Notes cannot be accelerated except in the event of bankruptcy or the occurrence of certain other events of insolvency or reorganization. On November 8, 2019, the Company issued $75,000 in aggregate principal amount of 4.75% Fixed-to-Floating Rate Subordinated Notes (the "2019 Notes"). The 2019 Notes were issued in a private placement transaction to certain qualified institutional buyers and accredited and were registered under the Securities Act effective February 13, 2020. The 2019 Notes were issued under an indenture for Fixed-to-Floating Rate Subordinated Notes dated November 8, 2019, between Veritex Holdings, Inc., as issuer, and UMB Bank, N.A., as trustee. The Company may elect to redeem the 2019 Notes (subject to regulatory approval), in whole or in part, on any early redemption date which is any interest payment date on or after November 15, 2024 at a redemption price equal to 100% of the principal amount plus any accrued and unpaid interest. The 2019 Notes, which qualify as Tier 2 capital under the Federal Reserve's capital guidelines, have an interest rate of 4.75% per annum during the fixed rate period from date of issuance through November 15, 2024. Interest is payable semi-annually on each May 15 and November 15 through November 15, 2024. The interest rate on the notes will vary beginning November 15, 2024, at a floating rate equal to the secured overnight financing rate, as determined quarterly on the determination date for the applicable interest period, plus 347 basis points. On October 5, 2020, the Company completed the issuance and sale of $125,000 in aggregate principal amount of its 4.125% Fixed-to-Floating Rate Subordinated Debt due in 2030 (the “2020 Notes”). The 2020 Notes will bear interest: (i) from and including the date of issuance to, but excluding, October 15, 2025, at a rate of 4.125% per year and (ii) from and including October 15, 2025 to, but excluding, the maturity date (unless redeemed prior to such date), at a floating rate per year equal to the Benchmark (which is expected to be Three-Month Term Secured Overnight Funding Rate) plus 399.5 basis points. The Company has the right, subject to certain circumstances and the receipt of any required approval of the Federal Reserve Board, to redeem the 2020 Notes at the Company’s option, in whole or in part, on any interest payment date on or after October 15, 2025.The Company intends to use the net proceeds from the offering of 2020 Notes for general corporate purposes, including the potential repayment of outstanding indebtedness, and supporting capital levels of the Bank.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The provision for income taxes is summarized as follows: Year Ended December 31, 2020 2019 2018 Income tax expense (benefit): Current $ 23,587 $ 16,068 $ 8,189 Deferred (9,384) 9,053 2,707 $ 14,203 $ 25,121 $ 10,896 The table below reconciles income tax expense for the years ended December 31, 2020, 2019 and 2018 computed by applying the applicable U.S. federal statutory income tax rate, reconciled to the tax expense computed at the effective income tax rate: Year Ended December 31, 2020 2019 2018 Federal incomes tax expense rate at 21% for December 31, 2020, 2019 and 2018 $ 18,498 $ 24,330 $ 10,550 Bank-owned life insurance (407) (422) (124) Non-deductible transaction costs — 308 727 Tax exempt interest income (452) (391) (169) Impact of IRS Settlement — (1,556) — Deferred tax true up (1,181) — — Deferred tax asset re-measurement due to the Tax Act — — 34 162(m) Disallowance 65 1,512 — State Taxes 902 760 110 Excess benefit on share-based compensation (1,435) 205 (248) Net Operating Loss ("NOL") Carryback (1,799) — — Other 12 375 16 Total income tax expense $ 14,203 $ 25,121 $ 10,896 Effective tax rate 16.1 % 21.7 % 21.7 % Deferred income taxes reflect the net tax effects of temporary differences between the recorded amounts of assets and liabilities for financial reporting purposes, and the amounts used for income tax purposes. Significant components of the Company’s deferred tax assets and liabilities are as follows: December 31, 2020 2019 Deferred tax assets: Allowance for credit losses $ 24,324 $ 6,232 Equity compensation 3,390 3,703 Purchase premium/loan discounts 2,945 9,347 Lease liability 3,276 2,960 Purchase securities 2,905 2,945 Other 3,901 3,930 Total deferred tax assets 40,741 29,117 Deferred tax liabilities: Intangibles 11,911 13,527 Bank premises and equipment 4,036 4,811 ROU asset 3,124 2,773 Net unrealized gain on available for sale debt securities and derivative instruments 14,944 4,669 Other 2,063 1,904 Total deferred tax liabilities 36,078 27,684 Net deferred tax asset $ 4,663 $ 1,433 Included within other assets in the accompanying consolidated balance sheet as of December 31, 2020 is a current tax receivable of $25,520 and a deferred tax asset of $4,663. Additionally, included within accounts payable and accrued expenses in the accompanying consolidated balance sheets as of December 31, 2020 is a $270 current state tax payable. Included in the accompanying consolidated balance sheets as of December 31, 2019 is a current tax receivable of $10,403 and a net deferred tax asset of $1,433 in other assets. Additionally, included within accounts payable and accrued expenses in the accompanying consolidated balance sheets as of December 31, 2019 is a $780 current state tax payable. The following table provides a rollforward of the Company's gross federal and state unrecognized tax benefits for the years ending December 31, 2020, 2019 and 2018. During the year ending December 31, 2020, the Company recorded an uncertain tax position liability for state nexus tax exposure of $549 in accounts payable and other liabilities in the accompanying consolidated balance sheets. During the year ending December 31, 2019, the Company recorded an uncertain tax position associated with the acquisition of Green and subsequently reached a settlement with the taxing authority. December 31 2020 2019 2018 Unrecognized tax benefits at the beginning of the year: $ — $ — $ — Gross increases, related to tax positions taken in a prior period 281 2,155 — Gross increases, related to tax positions taken in current period 268 — — Settlement with taxing authority — (2,155) — Unrecognized tax benefits at the end of the year $ 549 $ — $ — The Company has federal "NOL" carryforwards that are subject to a pre-tax limitation under Section 382 of approximately $3,055 as of December 31, 2020. The federal NOL carryforwards will expire with the 2031 tax year, if unused.

Commitment and Contingencies

Commitment and Contingencies	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Litigation The Company may from time to time be involved in legal actions arising from normal business activities. Management believes that these actions in which the Company or any of its subsidiaries is a defendant are without merit or that the ultimate liability, if any, resulting from them will not materially affect the financial position or results of operations of the Company. Qualified Affordable Housing Investments The Company invests in certain qualified affordable housing projects. At December 31, 2020 and 2019, the balance of the investments for qualified affordable housing projects was $2,899 and $3,292, respectively. This balance is reflected in other assets on the consolidated balance sheets. The total unfunded commitment related to the investments in a qualified housing project totaled $362 and $1,091 at December 31, 2020 and 2019, respectively, which is reflected in accrued interest payable on the consolidated balance sheets. The Company expects to fulfill this commitment during the year ending 2034. As of December 31, 2020, the expected future minimum commitment payments under the Company’s qualified affordable housing investments for each of the following five years were: Year Ending December 31, Future Minimum Payments 2021 $ 132 2022 26 2023 26 2024 37 2025 51 Thereafter 90 Total $ 362

Fair Value Disclosures

Fair Value Disclosures	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value Disclosures	Fair Value Disclosures The authoritative guidance for fair value measurements defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. A fair value measurement assumes that the transaction to sell the asset or transfer the liability occurs in the principal market for the asset or liability or, in the absence of a principal market, the most advantageous market for the asset or liability. The price in the principal (or most advantageous) market used to measure the fair value of the asset or liability shall not be adjusted for transaction costs. An orderly transaction is a transaction that assumes exposure to the market for a period prior to the measurement date to allow for marketing activities that are usual and customary for transactions involving such assets and liabilities; it is not a forced transaction. Market participants are buyers and sellers in the principal market that are (i) independent, (ii) knowledgeable, (iii) able to transact and (iv) willing to transact. The authoritative guidance requires the use of valuation techniques that are consistent with the market approach, the income approach and/or the cost approach. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets and liabilities. The income approach uses valuation techniques to convert future amounts, such as cash flows or earnings, to a single present amount on a discounted basis. The cost approach is based on the amount that currently would be required to replace the service capacity of an asset (replacement costs). Valuation techniques should be consistently applied. Inputs to valuation techniques refer to the assumptions that market participants would use in pricing the asset or liability. Inputs may be observable, meaning those that reflect the assumptions market participants would use in pricing the asset or liability developed based on market data obtained from independent sources, or unobservable, meaning those that reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability developed based on the best information available in the circumstances. In that regard, the authoritative guidance establishes a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The fair value hierarchy is as follows: Level 1 Inputs. Unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 2 Inputs. Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (for example, interest rates, volatilities, prepayment speeds, loss severities, credit risks and default rates) or inputs that are derived principally from or corroborated by observable market data by correlation or other means. Level 2 investments consist primarily of obligations of U.S. government agencies, corporate bonds, municipal securities, mortgage-backed securities, collateralized mortgage obligations and asset-backed securities. Level 3 Inputs. Significant unobservable inputs that reflect an entity’s own assumptions that market participants would use in pricing the assets or liabilities. In general, fair value is based upon quoted market prices, where available. If such quoted market prices are not available, fair value is based upon internally developed models that primarily use, as inputs, observable market-based parameters. Valuation adjustments may be made to ensure that financial instruments are recorded at fair value. While management believes the Company’s valuation methodologies are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date. A description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy, is set forth below. Assets and liabilities measured at fair value on a recurring basis include the following: Available for Sale Debt Securities: Debt securities classified as available for sale are reported at fair value utilizing Level 2 inputs. For those debt securities classified as Level 2, the Company obtains fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U. S. Treasury yield curve, live trading levels, trade execution data for similar securities, market consensus prepayments speeds, credit information and the bond’s terms and conditions, among other things. Equity Security With a Readily Determinable Fair Value: This investment represents our Community Reinvestment Act security which is reported at fair value utilizing a Level 1 input which includes a quoted price in an active market for the identical asset. PPP Loans: The fair value of PPP loans is based on commitments from investors or prevailing market prices. Loans Held for Sale: The fair value of government guaranteed loans held-for-sale is based on commitments from investors or prevailing market prices. Derivative Financial Instruments: The fair value of correspondent interest rate swaps, customer interest rate swaps, correspondent interest rate caps and collars and commercial loan interest rate floors are derived from pricing models based on past, present and projected future market conditions, quoted market prices of instruments with similar characteristics or discounted cash flows, classified in Level 2 of the fair value hierarchy. The following table summarizes assets measured at fair value on a recurring basis as of December 31, 2020 and 2019, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value: December 31, 2020 Level 1 Level 2 Level 3 Total Inputs Inputs Inputs Fair Value Financial Assets: Available for sale debt securities $ — $ 1,024,329 $ — $ 1,024,329 Equity securities with a readily determinable fair value 11,363 — — 11,363 PPP Loans — 358,042 — 358,042 Loans held for sale (1) — 6,681 — 6,681 Interest rate swap designated as hedging instruments — 17,543 — 17,543 Customer interest rate swaps not designated as hedging instruments — 10,937 — 10,937 Correspondent interest rate caps and collars not designated as hedging instruments — 1 — 1 Financial Liabilities: Interest rate swap designated as hedging instruments $ — $ 2,255 $ — $ 2,255 Correspondent interest rate caps and collars not designated as hedging instruments — 11,666 — 11,666 Customer interest rate swaps not designated as hedging instruments — 1 — 1 (1) Represents loans held for sale elected to be carried at fair value upon origination or acquisition. December 31, 2019 Level 1 Level 2 Level 3 Total Inputs Inputs Inputs Fair Value Financial Assets: Available for sale debt securities $ — $ 964,365 $ — $ 964,365 Equity securities with a readily determinable fair value 11,122 — — 11,122 Loans held for sale (1) — 10,068 — 10,068 Correspondent interest rate swaps — 105 — 105 Customer interest rate swaps — 4,393 — 4,393 Correspondent interest rate caps and collars — 11 — 11 Commercial loan interest rate floor — 3,353 — 3,353 Financial Liabilities: Correspondent interest rate swaps $ — $ 4,736 $ — $ 4,736 Customer interest rate swaps — 84 — 84 Customer interest rate caps and collars — 11 — 11 (1) Represents loans held for sale elected to be carried at fair value upon origination or acquisition. There were no transfers between Level 2 and Level 3 during the years ended December 31, 2020 and 2019. Certain assets, including collateral dependent loans with an ACL, servicing asset with a valuation allowance and other real estate owned are measured at fair value on a non-recurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances (for example, when there is evidence of impairment). Collateral Dependent Loans with an ACL: A loan is considered collateral-dependent when the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the operation or sale of the collateral. The ACL is measured by estimating the fair value of the loan's underlying collateral. For real estate loans, fair value of the 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. Appraisals for collateral dependent loans with an ACL are performed by certified general appraisers whose qualifications and licenses have been reviewed and verified by the Company. Once reviewed, a member of the credit department reviews the assumptions and approaches utilized in the appraisal as well as the overall resulting fair value in comparisons to independent data sources such as recent market data or industry wide-statistics. On a periodic basis, the Company compares the actual selling price of collateral that has been sold to the most recent appraised value to determine what additional adjustments, if any, should be made to the appraisal value to arrive at fair value. Other Real Estate Owned with a Valuation Allowance : The Company records other real estate owned at fair value less estimated costs to sell at the date of foreclosure. After foreclosure, other real estate owned is carried at the lower of the initial carrying amount (fair value less estimated costs to sell or lease) and the value determined by subsequent appraisals or internal valuations of the other real estate owned. The Company outsources the valuation of other real estate owned 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. 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 to consider applicable selling and closing costs. Servicing Assets with a Valuation Allowance : The fair value of the servicing asset is estimated using discounted cash flows based on current market interest rates. A valuation allowance is recorded when the fair value is below the carrying amount of the asset. The following table summarizes assets measured at fair value on a non-recurring basis as of December 31, 2020 and 2019, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value: Fair Value Measurements Using Level 1 Level 2 Level 3 Total Inputs Inputs Inputs Fair Value As of December 31, 2020 Assets: Collateral dependent loans with an ACL $ — $ — $ 2,386 $ 2,386 Servicing assets with a valuation allowance — — 2,975 2,975 As of December 31, 2019 Assets: Impaired loans $ — $ — $ 4,504 $ 4,504 Other real estate owned — — 5,995 5,995 At December 31, 2020, collateral dependent loans with an ACL had a recorded investment of $7,115, with $4,729 specific allowance for credit loss allocated. At December 31, 2019, impaired loans with an allowance had a recorded investment of $4,504, with $1,602 specific allowance for credit loss allocated. At December 31, 2020, servicing assets of $3,531 had a valuation allowance totaling $556. Other real estate owned consisted of four properties recorded with a fair value of approximately $5,995 at December 31, 2019. There were no liabilities measured at fair value on a non-recurring basis as of December 31, 2020 and 2019. Fair Value of Financial Instruments The Company is required under current authoritative guidance to disclose the estimated fair value of its financial instrument assets and liabilities, including those subject to the requirements discussed above. For the Company, as for most financial institutions, substantially all of its assets and liabilities are considered financial instruments, as defined in such guidance. Many of the Company’s financial instruments, however, lack an available trading market as characterized by a willing buyer and willing seller engaging in an exchange transaction. The estimated fair value amounts of financial instruments have been determined by the Company using available market information and appropriate valuation methodologies. However, considerable judgment is required to interpret data to develop an estimate of fair value. Accordingly, the estimates presented herein are not necessarily indicative of the amounts the Company could realize in a current market exchange. The use of different market assumptions and/or valuation methodologies may have a material effect on the estimated fair value amounts. In addition, reasonable comparability between financial institutions may not be likely due to the wide range of permitted valuation techniques and numerous estimates that must be made given the absence of active secondary markets for many of the financial instruments. This lack of uniform valuation methodologies also introduces a greater degree of subjectivity to these estimated fair values. The methods and assumptions used by the Company in estimating fair values of financial instruments as disclosed herein in accordance with ASC Topic 825, Financial Instruments , other than for those measured at fair value on a recurring and nonrecurring basis discussed above, are as follows: Cash and cash equivalents: The carrying amount of cash and cash equivalents approximates their fair value. Held-to-maturity debt securities: The fair values of these debt securities is determined by matrix pricing, which is a mathematical technique widely used in the industry to value debt securities without relying exclusively on quoted prices for the specific securities but rather by relying on the securities' relationship to other benchmark quoted securities (Level 2 inputs). Loans held for investment: The fair value of loans held for investment, excluding previously presented collateral dependent loans with an ACL measured at fair value on a non-recurring basis, is estimated using a discounted cash flow analysis. The discount rates used to determine fair value use interest rate spreads that reflect factors such as liquidity, credit, and prepayment risk of the loans. Loans are considered a Level 3 financial asset. Loans held for sale Loans held for sale, include mortgage loans, which are carried at the lower of cost or estimated fair value. The fair value for the mortgage loans approximate their carrying value and these loans are considered Level 2 financial assets. Accrued interest receivable: The carrying amounts of accrued interest approximate their fair values due to short-term maturity. Bank-owned life insurance: The carrying amounts of bank-owned life insurance policies approximate their fair value. Servicing Asset: Fair value is estimated by discounting estimated future cash flows from the servicing assets using discount rates that approximate current market rates over the expected lives of the loans being serviced. A valuation allowance is recorded when the fair value is below the carrying amount of the asset. Equity securities without a readily determinable fair value: Certain equity securities are carried at cost as these securities did not have a readily determinable fair value. There were no observable price changes in orderly transactions for the identical or a similar investment of the same issuer as of December 31, 2020 and 2019. FHLB and FRB stock: FHLB and FRB stock are carried at cost basis due to restrictions placed on the transferability of these investments. As a result, the fair value of these investments was not practicable to determine. Deposits: The fair values disclosed for demand deposits are, by definition, equal to the amount payable on demand at the reporting date (that is, their carrying amounts). The carrying amounts of variable-rate certificates of deposit (“CDs”) approximate their fair values at the reporting date. Fair values for fixed-rate CDs are estimated using a discounted cash flow calculation that applies interest rates currently being offered on CDs to a schedule of aggregated expected monthly maturities on time deposits. Advances from FHLB: The fair value of advances maturing within 90 days approximates carrying value. Fair value of other advances is based on the Company’s current borrowing rate for similar arrangements. Subordinated debentures and subordinated notes: The fair values are based upon prevailing rates on similar debt in the marketplace. Securities sold under agreement to repurchase: The carrying amount of securities sold under agreements to repurchase is a reasonable estimate of fair value because these borrowings reprice at market rates generally daily. Off-balance sheet instruments: Commitments to extend credit and standby letters of credit are generally priced at market at the time of funding and were not material to the Company’s consolidated financial statements. The estimated fair values and carrying values of all financial instruments not measured at fair value on a recurring or non-recurring basis under current authoritative guidance as of December 31, 2020 and 2019 were as follows: Fair Value Carrying Amount Level 1 Level 2 Level 3 December 31, 2020 Financial assets: Cash and cash equivalents $ 230,825 $ — $ 230,825 $ — Held-to-maturity debt securities 30,872 — 34,283 — Loans held for sale (1) 14,733 — 14,733 — Loans held for investment (2) 6,317,986 — — 6,335,402 Accrued interest receivable 23,798 — 23,798 — Bank-owned life insurance 82,855 — 82,855 — Servicing asset 388 — 486 — Equity securities without a readily determinable fair value 3,575 N/A N/A N/A FHLB and FRB stock 71,236 N/A N/A N/A Financial liabilities: Deposits $ 6,512,846 $ — $ 6,608,849 $ — Advances from FHLB 777,718 — 782,321 — Accrued interest payable 2,665 — 2,665 — Subordinated debentures and subordinated notes 262,778 — 262,778 — Securities sold under agreement to repurchase 2,225 — 2,199 — December 31, 2019 Financial assets: Cash and cash equivalents $ 251,550 $ — $ 251,550 $ — Held-to-maturity debt securities 32,965 — 34,810 — Loans held for sale (1) 4,012 — 4,012 — Loans held for investment (2) 5,921,205 — — 5,899,945 Accrued interest receivable 19,508 — 19,508 — Bank-owned life insurance 80,915 — 80,915 — Servicing asset 3,113 — 3,113 — Equity securities without readily determinable fair value 3,575 N/A N/A N/A FHLB and FRB stock 68,348 N/A N/A N/A Financial liabilities: Deposits $ 5,894,350 $ — $ 5,692,217 $ — Advances from FHLB 677,870 — 708,692 — Accrued interest payable 5,893 — 5,893 — Subordinated debentures and subordinated notes 145,571 — 145,571 — Securities sold under agreement to repurchase 2,353 — 2,353 — (1) Loans held for sale primarily represent mortgage loans held for sale that are carried at lower of cost or market. (2) Loans held for investment includes MW and is carried at amortized cost.

Off-Balance Sheet Loan Commitme

Off-Balance Sheet Loan Commitments	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Off-Balance Sheet Loan Commitments	Off-Balance Sheet Loan Commitments 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, mortgage warehouse commitments and standby letters of credit. Those instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the consolidated balance sheets. The Company’s exposure to credit loss in the event of nonperformance by the other party to a financial instrument for commitments to extend credit, mortgage warehouse commitments 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 instruments. The following table sets forth the approximate amounts of these financial instruments as of December 31, 2020 and 2019: December 31, 2020 2019 Commitments to extend credit $ 2,743,571 $ 1,602,891 Mortgage warehouse commitments 354,603 347,459 Standby and commercial letters of credit 44,427 27,196 $ 3,142,601 $ 1,977,546 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 may expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. Management evaluates each customer’s creditworthiness on a case-by-case basis and substantially all of the Company’s commitments to extend credit are contingent upon customers maintaining specific credit standards at the time of future loan funding. The amount of collateral obtained, if deemed necessary upon extension of credit, is based on management’s credit evaluation of the borrower. Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Standby letters of credit generally have fixed expiration dates or other termination clauses and may require payment of a fee. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. The Company’s policy for obtaining collateral and the nature of such collateral is essentially the same as that involved in making commitments to extend credit. 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 table below presents the activity in the allowance for unfunded commitment credit losses related to those financial instruments discussed above. This allowance is recorded in accounts payable and other liabilities on the Consolidated Balance Sheets: December 31, 2020 2019 Beginning balance for allowance for credit losses on unfunded commitments $ 878 $ 878 Impact of CECL adoption 840 — Provision for credit losses on unfunded commitments 9,029 — Ending balance of allowance for credit losses on unfunded commitments $ 10,747 $ 878

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments The Company primarily uses derivatives to manage exposure to market risk, including interest rate risk and credit risk and to assist customers with their risk management objectives. Management will designate certain derivatives as hedging instruments in a qualifying hedge accounting relationship. The Company’s remaining derivatives consist of derivatives held for customer accommodation or other purposes. The fair value of derivative positions outstanding is included in other assets and accounts payable and other liabilities on the accompanying consolidated balance sheets and in the net change in each of these financial statement line items in the accompanying Consolidated Statements of Cash Flows. For derivatives not designated as hedging instruments, swap fee income and gains and losses due to changes in fair value are included in noninterest income and the operating section of the Consolidated Statement of Cash Flows. For derivatives designated as hedging instruments, the entire change in the fair value related to the derivative instrument is recognized as a component of other comprehensive income and subsequently reclassified into interest income when the forecasted transaction affects income. The notional amounts and estimated fair values as of December 31, 2020 and December 31, 2019 were as shown in the table below. December 31, 2020 December 31, 2019 Estimated Fair Value Estimated Fair Value Notional Amount Asset Derivative Liability Derivative Notional Amount Asset Derivative Liability Derivative Derivatives designated as hedging instruments (cash flow hedges): Interest rate swap on borrowing advances $ 500,000 $ 17,543 $ — $ — $ — $ — Interest rate swap on money market deposit account payments 250,000 — 2,255 — — — Commercial loan interest rate floor — — — 275,000 3,353 — Total derivatives designated as hedging instruments $ 750,000 $ 17,543 $ 2,255 275,000 3,353 — Derivatives not designated as hedging instruments: Financial institution counterparty: Interest rate swaps $ 303,918 $ — $ 11,666 $ 222,394 $ 105 $ 4,736 Interest rate caps and collars 41,916 1 — 90,093 11 — Commercial customer counterparty: Interest rate swaps 303,918 10,937 — 222,394 4,393 84 Interest rate caps and collars 41,916 — 1 90,093 — 11 Total derivatives not designated as hedging instruments $ 691,668 $ 10,938 $ 11,667 $ 624,974 $ 4,509 $ 4,831 Offsetting derivative assets/liabilities 1 1 (2,895) (2,895) Total derivatives $ 1,441,668 $ 28,482 $ 13,923 $ 899,974 $ 4,967 $ 1,936 Pre-tax gain (loss) included in the Consolidated Statements of Income and related to derivative instruments for the years ended December 31, 2020 and 2019 was as follows: For the Year Ended December 31, 2020 For the Year Ended December 31, 2019 Net gain (loss) recognized in other comprehensive income on derivative Gain (loss) reclassified from accumulated other comprehensive income into income Location of gain (loss) reclassified from accumulated other comprehensive income into income Net gain (loss) recognized in other comprehensive income on derivative Gain (loss) reclassified from accumulated other comprehensive income into income Location of gain (loss) reclassified from accumulated other comprehensive income into income Derivatives designated as hedging instruments (cash flow hedges): Interest rate swap on borrowing advances $ 13,859 $ — Interest Expense $ — $ — Interest Expense Interest rate swap on money market deposit account payments (1,781) (605) Interest Expense — — Interest Expense Commercial loan interest rate floors (813) 1,937 Interest Income 1,497 (808) Interest Income Total $ 11,265 $ 1,332 $ 1,497 $ (808) Net Gain recognized in other noninterest income Loss recognized in other noninterest income Derivatives not designated as hedging instruments: Interest rate swaps, caps and collars $ 2,481 $ 550 Cash Flow Hedges Cash flow hedge relationships mitigate exposure to the variability of future cash flows or other forecasted transactions. The Company uses interest rate swaps, floors, caps and collars to manage overall cash flow changes related to interest rate risk exposure on benchmark interest rate loans. In March 2020, the Company entered into an interest rate swap for a notional amount of $500,000 to hedge the variability of cash flow payments attributable to changes in interest rates in regards to forecasted issuances of three-month term debt arrangements every three months from March 2022 through March 2032. These forecasted borrowings can be sourced from an FHLB advance, repurchase agreement, brokered certificate of deposit or some combination of the foregoing. In March 2020, the Company entered into an interest rate swap for a notional amount of $250,000 to hedge the variability of cash flow payments attributable to changes in interest rates in regards to forecasted money market account borrowings from March 2020 through March 2025. In May 2019, the Company entered into a $275,000 notional interest rate floor for commercial loans with a two-year term. The interest rate floor had a purchased floor strike of 2.43%. In February 2020, the Company terminated this interest rate floor. The gain resulting from the termination of the interest rate floor will remain in other comprehensive income (loss) and will be accreted into earnings over the remaining period of the former hedging relationship unless the forecasted transaction becomes probable of not occurring. Interest Rate Swap, Floor, Cap and Collar Agreements Not Designated as Hedging Derivatives In order to accommodate the borrowing needs of certain commercial customers, the Company has entered into interest rate swap or cap agreements with those customers. These interest rate derivative contracts effectively allow the Company’s customers to convert a variable rate loan into a fixed rate loan. In order to offset the exposure and manage interest rate risk, at the time an agreement was entered into with a customer, the Company entered into an interest rate swap or cap with a correspondent bank counterparty with offsetting terms. These derivative instruments are not designated as accounting hedges and changes in the net fair value are recognized in noninterest income or expense. Because the Company acts as an intermediary for its customers, changes in the fair value of the underlying derivative contracts substantially offset each other and do not have a material impact on the Company’s results of operations. The fair value amounts are included in other assets and other liabilities. The following is a summary of the interest rate swaps outstanding as of December 31, 2020 and December 31, 2019. December 31, 2020 Notional Amount Fixed Rate Floating Rate Maturity Fair Value Non-hedging derivative instruments: Customer interest rate derivative: Interest rate swaps - receive fixed/pay floating $ 303,918 3.14% - 8.470% LIBOR 1 month + —% - 5.00% PRIME H15 - 25 Wtd. Avg. 4.1 years $ (11,666) Interest rate caps and collars $ 41,916 2.500% / 3.000% LIBOR 1 month + —% Wtd. Avg. 1.6 years $ 1 Correspondent interest rate derivative: Interest rate swaps - pay fixed/receive floating $ 303,918 3.14% - 8.470% LIBOR 1 month + —% - 5.00% PRIME H15 - 25 Wtd. Avg. 4.1 years $ 10,937 Interest rate caps and collars $ 41,916 3.000% / 5.000% LIBOR 1 month + —% - 2.5% Wtd. Avg. 1.6 years $ (1) December 31, 2019 Notional Amount Fixed Rate Floating Rate Maturity Fair Value Non-hedging derivative instruments: Customer interest rate derivative: Interest rate swaps - receive fixed/pay floating $ 222,394 2.944% - 8.470% LIBOR 1 month + —% - 5.00% PRIME H15 - 25 Wtd. Avg. 3.3 years $ (4,632) Interest rate caps and collars $ 90,093 2.430% / 5.800% LIBOR 1 month + —% - 3.75% Wtd. Avg. 1.5 years $ 11 Correspondent interest rate derivative: Interest rate swaps - pay fixed/receive floating $ 222,394 2.944% - 8.470% LIBOR 1 month + —% - 5.00% PRIME H15 - 25 Wtd. Avg. 3.3 years $ 4,309 Interest rate caps and collars $ 90,093 3.000% / 5.800% LIBOR 1 month + — - 3.75% Wtd. Avg. 1.5 years $ (11)

Employee Benefits

Employee Benefits	12 Months Ended
	Dec. 31, 2020
Retirement Benefits [Abstract]
Employee Benefits	Employee Benefits Defined Contribution Plan The Company maintains a retirement savings 401(k) profit sharing plan (the “Plan”) in which substantially all employees may participate. The Plan allows employees to make discretionary “before tax” contributions through salary reductions under section 401(k) of the Internal Revenue Code. The Company may make a discretionary match of employees’ contributions based on a percentage of salary deferrals and certain discretionary profit sharing contributions. For the year ended December 31, 2020 and 2019, the company made matching contributions of $3,210 and $2,896, respectively. Employee Stock Ownership Plan ("ESOP") Effective January 1, 2012, the Company adopted the ESOP, which covered substantially all employees (subject to certain exclusions). The Company ceased making new contributions to the ESOP effective January 1, 2019 and approved an amendment to terminate the ESOP effective on June 30, 2019. During the year ended December 31, 2020, the Company received an IRS determination letter approving a liquidation of the ESOP. As of December 31, 2020, the Company had not yet liquidated the ESOP assets. There was no compensation expense attributed to the ESOP for the years ended December 31, 2020 and 2019. Compensation expense attributed to ESOP contributions recorded in the accompanying consolidated statements of income for the year ended December 31, 2018 was approximately $863.

Stock and Incentive Plans

Stock and Incentive Plans	12 Months Ended
	Dec. 31, 2020
Share-based Payment Arrangement [Abstract]
Stock and Incentive Plans	Stock and Incentive Plans 2010 Stock Option and Equity Incentive Plan In 2010, the Company adopted the 2010 Stock Option and Equity Incentive Plan (the “2010 Incentive Plan”), which the Company’s shareholders approved in 2011. The maximum number of shares of common stock that may be issued pursuant to grants or options under the 2010 Incentive Plan is 1,000,000. The 2010 Incentive Plan is administered by the Board and provides for both the direct award of stock and the grant of stock options to eligible directors, officers, employees and outside consultants of the Company or its affiliates as defined in the 2010 Incentive Plan. The Company may grant either incentive stock options or nonqualified stock options as directed in the 2010 Incentive Plan. The Board authorized grants of equity awards under the 2010 Incentive Plan consisting of 100,000 shares of direct stock awards (restricted shares) and 900,000 shares of stock options, of which 500,000 shares are or were performance-based stock options. Options were generally granted with an exercise price equal to the market price of the Company’s stock as of the date of the grant. In general, the terms of awards varied depending on whether a participant was a shareholder owning more than 10% of the total combined voting power of all classes of Company stock (a “controlling participant”). Options granted to non-controlling participants generally vested after 5 years of continuous service, with 10-year contractual terms, and forfeiture of unexercised options upon termination of employment with the Company. Other grant terms varied for controlling participants. Restricted share awards generally vested after 4 years of continuous service. The terms of the 2010 Incentive Plan provide that all unearned non-performance options and restricted shares become immediately exercisable and fully vested upon a change in control. During the years ending December 31, 2020, 2019 and 2018, the Company did not award any restricted stock units, non-performance based stock options or performance-based stock options or other awards under the 2010 Incentive Plan. Stock based compensation expense is measured based upon the fair market value of the award at the grant date and is recognized ratably over the period during which the shares are earned (the requisite service period). For the year ended December 31, 2020, there was no stock compensation expense related to the 2010 Incentive Plan. For the years ended December 31, 2019 and 2018, approximately $3 and $27 of stock compensation expense related to the 2010 Incentive Plan, respectively, was recognized in the accompanying consolidated statements of income. A summary of the status of options granted under the 2010 Incentive Plan at December 31, 2020, 2019 and 2018 and changes during the years then ended is presented below: 2010 Incentive Plan Nonperformance-based stock options Shares Weighted Average Exercise Weighted Aggregate Intrinsic Value Outstanding at December 31, 2017 305,000 $ 10.16 3.59 years Exercised (30,000) 10.61 Outstanding at December 31, 2018 275,000 $ 10.12 2.39 years Exercised (17,500) 10.24 Outstanding at December 31, 2019 257,500 $ 10.28 1.37 years Exercised (237,500) 10.12 Outstanding and exercisable at December 31, 2020 20,000 $ 10.09 1.06 years $ 374 As of December 31, 2020 and 2019, there was no unrecognized stock compensation expense related to non-performance based stock options. As of December 31, 2018, there was approximately $3 of unrecognized compensation expense related to non-performance-based stock options. A summary of the status of the restricted stock units under the 2010 Incentive Plan as of December 31, 2020, 2019, and 2018 and changes during the years is presented below: 2010 Incentive Plan Nonperformance-based restricted stock units Shares Weighted Average Exercise Outstanding at December 31, 2017 24,250 $ 13.19 Forfeited (500) 10.85 Vested into shares (23,750) 12.14 Outstanding at December 31, 2018 — $ — Outstanding at December 31, 2019 — — Outstanding at December 31, 2020 — $ — As of December 31, 2020, 2019, and 2018, there was no remaining unrecognized compensation expense related to non-vested restricted stock units. A summary of the fair value of the Company’s stock options exercised and restricted stock units vested under the 2010 Incentive Plan as of December 31, 2020, 2019 and 2018 is presented below: Fair Value of Options Exercised or Restricted Stock Units Vested as of December 31, 2020 2019 2018 Nonperformance-based stock options exercised $ 6,579 $ 454 $ 803 Nonperformance-based restricted stock units vested — — 713 2019 Amended Plan and Green Acquired Omnibus Plans 2020 Grants of Restricted Stock Units In the year ended December 31, 2020, the Company granted non-performance-based and performance-based restricted stock units (“RSUs”) under the 2019 Amended and Restated Omnibus Incentive Plan, which amended and restated the 2014 Omnibus Incentive Plan (“2019 Amended Plan”), and the Veritex (Green) 2014 Omnibus Equity Incentive Plan (“Veritex (Green) 2014 Plan”). The majority of the non-performance-based RSUs granted to employees during the year ended December 31, 2020 vest after three or five equal installments on each anniversary of the grant date. There were also non-performance-based restricted stock units granted with no vesting conditions on the grant date. The performance-based RSUs granted in January 2020 are subject to “cliff” vesting, with a vesting date of January 1, 2023, based on a performance period starting on December 31, 2019 and ending on December 31, 2022. The vesting percentage is determined based on the Company’s total shareholder return (“TSR”) relative to the TSR of 15 peer companies (“Peer Group”) over the performance period. Below is a table showing the range of vesting percentages for the performance-based RSUs based on the Company’s TSR percentile rank. Vesting % Below the 24.9 th percentile of Peer Group TSR — % Within the 25 th to 49.9 th percentile of Peer Group TSR 50 % Within the 50 th to 74.9 th percentile of Peer Group TSR 100 % At or above the 75 th percentile of Peer Group TSR 150 % A Monte Carlo simulation was used to estimate the fair value of performance-based RSUs on the grant date that include a market condition based on the Company’s TSR relative to its Peer Group, which determines the eligible number of RSUs to vest. 2020 Grant of Stock Options In January 2020, the Company granted non-performance-based options under the 2019 Amended Plan and the Veritex (Green) 2014 Plan, which vest over three equal installments on each anniversary of the grant date. The fair value of each option award is estimated on the grant date using the Black-Scholes option-pricing model with the following assumptions used for the grants: For the Year Ended December 31, 2020 2019 2018 Dividend yield 2.33% to 5.14% 1.73% to 2.01% —% Expected life 5.00 to 6.51 years 4.52 to 7.51 years 5.00 to 7.50 years Expected volatility 27.49% to 42.37% 28.85% to 29.65% 27.87% to 37.55% Risk-free interest rate 0.36% to 1.76% 1.53% to 2.51% 1.06% to 2.94% The expected life is based on the amount of time that options being valued are expected to remain outstanding. The expected volatility is based on historical volatility of the Company. The dividend yield assumption is based on the Company’s dividend history. The risk-free interest rates are based upon yields of U.S. Treasury issues with a term equal to the expected life of the option being valued. Stock Compensation Expense and Liability Award Compensation Expense Stock compensation expense for equity awards under the 2019 Amended Plan was approximately $6,080 and $3,044 for the years ended December 31, 2020, 2019, respectively. Stock compensation expense for options and restricted stock unit awards granted under the Veritex (Green) 2014 Plan was approximately $1,903 and $1,525 for the year ended December 31, 2020 and 2019, respectively. There was no compensation expense for liability-classified awards sunder the 2019 Amended Plan during the year ended December 31, 2020. There was $1,403 of compensation expense for liability-classified awards under the 2019 Amended Plan during the year December 31, 2019. On May 22, 2019, the shareholders of the Company approved a proposal to approve the 2019 Amended and Restated Omnibus Incentive Plan, which amended and restated our 2014 Omnibus Incentive Plan (the "Equity Plan"). The Equity Plan has two complementary purposes: (i) to attract and retain talented individuals to serve as officers, employees, directors and service providers; and (ii) to increase shareholder value by aligning the interests of our officers, employees, directors and service providers with the long-term interests of our company and our shareholders. The Equity Plan offers eligible officers, employees, directors and service providers the opportunity to acquire shares of our common stock, or receive monetary payments, on the potentially favorable terms provided by the Equity Plan. The Equity Plan is administered by the Compensation Committee of the Board. The maximum number of shares of the Company’s common stock that may be issued pursuant to grants or options under the Equity Plan is 1,500,000. 2019 Amended Plan A summary of the status of the Company’s stock options under the 2019 Amended Plan as of December 31, 2020, 2019 and 2018, and changes during the years then ended, is as follows: 2019 Amended Plan Nonperformance-based stock options Equity Awards Liability Awards Shares Weighted Average Exercise Weighted Aggregate Intrinsic Value Shares Weighted Average Exercise Weighted Aggregate Intrinsic Value Outstanding at December 31, 2017 330,723 $ 22.71 8.86 years — — — Granted 137,576 28.04 — — Forfeited (4,083) 27.59 — — Exercised (14,696) 15.29 — — Outstanding at December 31, 2018 449,520 $ 24.47 8.24 years — $ — — Granted 200,561 22.72 253,633 21.38 Conversion to equity awards 253,633 21.38 (253,633) 21.38 Forfeited (41,336) 25.51 — — Exercised (12,610) 15.42 — — Outstanding at December 31, 2019 849,768 $ 23.61 8.24 years — — — Granted 185,025 26.73 — — Forfeited (25,053) 27.37 — — Exercised (33,939) 19.10 — — Outstanding at December 31, 2020 975,801 $ 24.26 7.45 years $ 2,422 — — — $ — Options exercisable at December 31, 2020 491,704 $ 24.25 6.40 years $ 1,199 — — — $ — Weighted average fair value of options granted during the period $ 6.37 $ — As of December 31, 2020, 2019 and 2018 there was $2,470, $2,948 and $2,103 of total unrecognized compensation expense related to stock options awarded under the 2019 Amended Plan, respectively. As of December 31, 2020, there was no unrecognized compensation expense related to liability options awarded under the 2019 Amended Plan. The unrecognized compensation expense at December 31, 2020 is expected to be recognized over the remaining weighted average requisite service period of 2.65 years. A summary of the status of the Company’s non-performance based restricted stock units under the 2019 Amended Plan as of December 31, 2020, 2019 and 2018, and changes during the year then ended is as follows: 2019 Amended Plan Nonperformance-based restricted stock units Equity Awards Liability Awards Units Weighted Units Weighted Outstanding at December 31, 2017 150,722 $ 13.29 — $ — Granted 60,650 29.27 — — Vested into shares (73,988) 24.44 — — Forfeited (3,929) 26.29 — — Outstanding at December 31, 2018 133,455 $ 19.67 — $ — Granted 127,459 22.44 165,739 21.38 Conversion to equity awards 165,739 21.38 (165,739) 21.38 Vested into shares (250,965) 22.29 — — Outstanding at December 31, 2019 175,688 $ 21.65 — $ — Granted 360,400 20.38 — — Vested into shares (93,377) 24.73 — — Forfeited (1,579) 29.13 — — Outstanding at December 31, 2020 441,132 $ 20.39 — $ — A summary of the status of the Company’s performance based restricted stock units under the 2019 Amended Plan as of December 31, 2020, 2019 and 2018, and changes during the years then ended is as follows: 2019 Amended Plan Performance-based restricted stock units Equity Awards Liability Awards Units Weighted Units Weighted Outstanding at December 31, 2017 53,594 $ 17.68 — $ — Granted 40,269 27.59 — — Vested into shares (28,109) 18.69 — — Forfeited (1,766) 27.59 — — Outstanding at December 31, 2018 63,988 $ 21.28 — $ — Granted 38,746 22.53 32,249 21.38 Conversion to equity awards 32,249 21.38 (32,249) 21.38 Vested into shares (51,284) 25.31 — — Forfeited (19,972) 21.38 — — Outstanding at December 31, 2019 63,727 $ 22.76 — $ — Granted 39,398 25.94 — — Vested into shares (1,841) 19.69 — — Forfeited (1,089) 19.69 — — Outstanding at December 31, 2020 100,195 $ 23.20 — $ — As of December 31, 2020, 2019, and 2018 there was $8,222, $4,329 and $3,430 of total unrecognized compensation expense related to restricted stock units awarded under the 2019 Amended Plan, respectively. As of December 31, 2020, there was no unrecognized compensation related to liability restricted stock units awarded under the 2019 Amended Plan. The unrecognized compensation expense at December 31, 2020 is expected to be recognized over the remaining weighted average requisite service period of 2.61 years. A summary of the fair value of the Company’s stock options exercised and restricted stock units vested under the 2019 Amended Plan as of December 31, 2020, 2019 and 2018 is presented below: Fair Value of Options Exercised or Restricted Stock Units Vested as of December 31, 2020 2019 2018 Nonperformance-based stock options exercised $ 954 334 383 Nonperformance-based restricted stock units vested 2,529 6,113 2,128 Performance-based restricted stock units vested 36 1,089 745 Veritex (Green) 2014 Plan A summary of the status of the Company’s stock options under the Veritex (Green) 2014 Plan as of December 31, 2020 and 2019 changes during the years then ended is as follows: Veritex (Green) 2014 Plan Non-performance Based Stock Options Shares Weighted Weighted Aggregate Intrinsic Value Outstanding at January 1, 2019 — $ — Converted in acquisition of Green 304,778 15.41 Granted 211,793 21.38 Forfeited (12,673) 13.17 Exercised (116,929) 13.60 Outstanding at December 31, 2019 386,969 19.30 Granted 31,075 29.13 Forfeited (30,711) 20.92 Exercised (35,333) 19.42 Outstanding at December 31, 2020 352,000 $ 19.99 6.97 years $2,124 Options exercisable at December 31, 2020 209,844 $ 17.89 6.11 years $1,642 Weighted average fair value of options granted during the period $ 9.56 As of December 31, 2020 and 2019, there was $626 and $1,062, respectively, of total unrecognized compensation expense related to options awarded under the Veritex (Green) 2014 Plan. The unrecognized compensation expense at December 31, 2020 is expected to be recognized over the remaining weighted average requisite service period of 2.13 years. A summary of the status of the Company’s non-performance-based restricted stock units under the Veritex (Green) 2014 Plan as of December 31, 2020 and 2019 and changes during the years then ended, is as follows: Veritex (Green) 2014 Plan Non-performance Based Restricted Stock Units Units Weighted Average Grant Date Fair Value Outstanding at January 1, 2019 — $ — Granted 116,250 21.38 Outstanding at December 31, 2019 116,250 21.38 Granted 93,918 21.36 Vested into shares (38,744) 21.38 Forfeited (15,237) 23.62 Outstanding at December 31, 2020 156,187 $ 22.64 A summary of the status of the Company’s performance-based restricted stock units under the Veritex (Green) 2014 Plan as of December 31, 2020 and 2019 and changes during the years then ended, is as follows: Veritex (Green) 2014 Plan Performance Based Restricted Stock Units Units Weighted Average Grant Date Fair Value Outstanding at January 1, 2019 — $ — Granted 26,145 21.38 Forfeited (825) 21.38 Outstanding at December 31, 2019 25,320 $ 21.38 Granted 8,531 25.94 Forfeited (3,123) 19.69 Outstanding at December 31, 2020 30,728 $ 21.43 As of December 31, 2020 and 2019, there was $2,484 and $1,991, respectively, of total unrecognized compensation related to outstanding restricted stock units awarded under the Veritex (Green) 2014 Plan to be recognized over a remaining weighted average requisite service period of 2.02 years. A summary of the fair value of the Company’s stock options exercised and restricted stock units vested under the Veritex (Green) 2014 Plan during the year ended December 31, 2020 and 2019 is presented below: Fair Value of Options Exercised or Restricted Stock Units Vested in the year ended December 31, 2020 2019 Non-performance-based stock options exercised $ 1,021 $ 3,054 Non-performance-based restricted stock units vested 828 — Green Bancorp Inc. 2010 Stock Option Plan and Green Bancorp Inc. 2006 Stock Option Plan In addition to the Veritex (Green) 2014 Plan discussed earlier in this Note, the Company assumed two stock and incentive plans in the Green acquisition, the Green Bancorp Inc. 2010 Stock Option Plan (“Green 2010 Plan”) and the Green Bancorp Inc. 2006 Stock Option Plan (“Green 2006 Plan”). A summary of the status of the Company’s non-performance-based restricted stock units under the Green 2010 Plan as of December 31, 2020 and 2019 and changes during the years then ended, is as follows: Green 2010 Plan Non-performance Based Stock Options Shares Weighted Weighted Aggregate Intrinsic Value Outstanding at January 1, 2019 — $ — Converted in acquisition of Green 768,628 10.73 Forfeited (6,241) 13.69 Exercised (190,652) 10.93 Outstanding at December 31, 2019 571,735 10.64 Exercised (440,652) 10.35 Outstanding and exercisable at December 31, 2020 131,083 $ 11.60 4.90 years $1,843 As of December 31, 2020 and 2019, there was no unrecognized compensation expense related to options awarded under the Green 2010 Plan. A summary of the fair value of the Company’s stock options exercised under the Green 2010 Plan during the year ended December 31, 2020 and 2019 is presented below: Fair Value of Options Exercised in the year ended December 31, 2020 2019 Non-performance-based stock options exercised $ 12,231 $ 5,554 A summary of the status of the Company’s non-performance-based restricted stock units under the Green 2006 Plan as of December 31, 2020 and 2019 and changes during the years then ended, is as follows: Green 2006 Plan Non-performance Based Stock Options Shares Weighted Weighted Aggregate Intrinsic Value Outstanding at January 1, 2019 — $ — Converted in acquisition of Green 11,850 10.45 Exercised (11,850) 10.45 Outstanding at December 31, 2019 and 2020 — — As of December 31, 2020 and 2019, there was no unrecognized compensation expense related to options awarded under the Green 2006 Plan. A summary of the fair value of the Company’s stock options exercised under the Green 2006 Plan during the year ended December 31, 2020 and 2019 is presented below: Fair Value of Options Exercised in the year ended December 31, 2020 2019 Non-performance-based stock options exercised $ — $ 345

Significant Concentrations of C

Significant Concentrations of Credit Risk	12 Months Ended
	Dec. 31, 2020
Risks and Uncertainties [Abstract]
Significant Concentrations of Credit Risk	Significant Concentrations of Credit Risk Most of the Company’s business activity is with customers located within the Dallas-Fort Worth metroplex and Houston metropolitan area. Such customers are normally also depositors of the Company. The distribution of commitments to extend credit approximates the distribution of loans outstanding. The Company has a diversified loan portfolio, however a significant portion of the Company's loans are collateralized by real estate. Repayment of these loans is in part dependent upon the economic conditions in the market area. The contractual amounts of credit related financial instruments such as commitments to extend credit, MW commitments, credit card arrangements, and letters of credit represent the amounts of potential accounting loss should the contract be fully drawn upon, the customer default, and the value of any existing collateral become worthless.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2020
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions In the ordinary course of business, the Company has and expects to continue to have transactions, including borrowings, with its employees, officers, directors and their affiliates. These loans are on substantially the same terms, including interest rates and collateral, as those prevailing at the time for comparable transactions with other unaffiliated persons and do not involve more than normal risk of collectability. The aggregate amounts of such loans were approximately $34,944 and $70,113 as of December 31, 2020 and 2019, respectively. During the year ended December 31, 2020, new advances of approximately $12,477 were made to related parties with approximately $19,991 principal payments received. During the year ended December 31, 2019, new advances of approximately $42,163 were made to related parties with approximately $42,398 principal payments received. There were $13,191 and $17,180 in unfunded commitments to related parties as of December 31, 2020 and 2019, respectively. At December 31, 2020, there were no loans to employees, officers, directors or their affiliates that were considered non-performing or potentially problem loans. Deposits received from related parties as of December 31, 2020 and 2019 totaled ap proximately $506,068 and $70,986, respectively.

Capital Requirements and Restri

Capital Requirements and Restrictions on Retained Earnings	12 Months Ended
	Dec. 31, 2020
Banking and Thrift [Abstract]
Capital Requirements and Restrictions on Retained Earnings	Capital Requirements and Restrictions on Retained Earnings Under applicable U.S. banking laws, there are legal restrictions limiting the amount of dividends the Company can declare. Approval of the regulatory authorities is required if, among other things, the effect of the dividends declared would cause regulatory capital of the Company to fall below specified minimum levels. The Company on a consolidated basis and the Bank are subject to various regulatory capital requirements administered by federal banking agencies. Failure to meet minimum capital requirements triggers certain mandatory and may lead to additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Bank must meet specific capital guidelines that involve quantitative measures of the Bank’s assets, liabilities, and, if the Bank were not eligible for or did not opt into the Community Bank Leverage Ratio (“CBLR”) framework, certain off-balance sheet items as calculated under regulatory accounting practices. If the Company were not eligible for or did not opt into the CBLR framework, its capital amounts and classification would also be subject to qualitative judgments by the regulators about components of capital, risk weightings of assets, and other factors. Under the Economic Growth, Regulatory Reform, and Consumer Protection Act (“EGRRCPA”) and implementing regulations of the federal banking agencies, certain banking organizations with less than $10 billion in assets may elect to satisfy a single CBLR of Tier 1 capital to average total consolidated assets in lieu of the generally applicable capital requirements of the capital rules implementing Basel III. We have elected to use the CBLR framework. Accordingly, if we and the Bank continue to meet all requirements under this framework, we and the Bank will not be required to report or calculate risk-based capital, and the Bank will be considered to have met the well-capitalized ratio requirements under Prompt Corrective Action (“PCA”) regulations. The federal banking agencies have finalized the CBLR minimum at 9% and we and the Bank exceed this standard. The U.S. Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”), enacted March 27, 2020, temporarily reduced the CBLR to 8% until the earlier of December 31, 2020 or the expiration of the national emergency declaration, and rules issued by the federal banking agencies provide a graduated transition back to the 9% threshold by January 1, 2022. If we were not eligible for or did not opt into the CBLR framework, we would be subject to other quantitative measures established by regulation to ensure capital adequacy. These generally applicable capital requirements require a banking organization that does not operate under the CBLR framework to maintain minimum amounts and ratios (set forth in the table below) of total Tier 1, and common equity Tier 1 capital (as defined in the regulations) to risk-weighted assets (as defined), and of Tier 1 capital (as defined) to average assets (as defined). Additionally, to be categorized as “well capitalized,” a banking organization that does not operate under the CBLR framework is required to maintain minimum total risk-based common equity Tier 1, Tier 1, and total capital ratios and Tier 1 leverage ratios as set forth in the table below. As of December 31, 2020 and December 31, 2019, the Company’s and the Bank’s capital ratios exceeded those levels necessary to be categorized as “well capitalized” if the Company and the Bank were not operating under the CBLR framework. There are no conditions or events since December 31, 2020 that management believes have changed the Company’s category. In the first quarter of 2020, U.S. federal regulatory authorities issued an interim final rule that provides banking organizations that adopt CECL during the 2020 calendar year with the option to delay for two years the estimated impact of CECL on regulatory capital relative to regulatory capital determined under the prior incurred loss methodology, followed by a three-year transition period to phase out the aggregate amount of the capital benefit provided during the initial two-year delay (i.e., a five-year transition in total). In connection with our adoption of CECL on January 1, 2020, the Company elected to utilize the five-year CECL transition. As a result, the effects of CECL on the Company's and the Bank’s regulatory capital will be delayed through the year 2021, after which the effects will be phased-in over a three-year period from January 1, 2022 through December 31, 2024. A comparison of the Company’s and Bank’s actual capital amounts and ratios to capital amounts and ratios that would be required if the Company and Bank were not operating under the CBLR framework is presented in the following table: Actual For Capital To Be Well Amount Ratio Amount Ratio Amount Ratio As of December 31, 2020 Total capital (to risk-weighted assets) Company $ 1,099,031 13.57 % $ 647,918 8.0 % n/a n/a Bank 968,481 11.96 647,813 8.0 $ 809,767 10.0 % Tier 1 capital (to risk-weighted assets) Company 782,487 9.66 486,017 6.0 n/a n/a Bank 884,471 10.92 485,973 6.0 647,964 8.0 Common equity tier 1 (to risk-weighted assets) Company 753,261 9.30 364,481 4.5 n/a n/a Bank 884,471 10.92 364,480 4.5 526,471 6.5 Tier 1 capital (to average assets) Company 782,487 9.43 331,914 4.0 n/a n/a Bank 884,471 10.66 331,884 4.0 414,855 5.0 As of December 31, 2019 Total capital (to risk-weighted assets) Company $ 917,939 13.10 % $ 560,573 8.0 % n/a n/a Bank 870,838 12.44 560,024 8.0 $ 700,031 10.0 % Tier 1 capital (to risk-weighted assets) Company 771,679 11.02 420,152 6.0 n/a n/a Bank 840,126 12.00 420,063 6.0 560,084 8.0 Common equity tier 1 (to risk-weighted assets) Company 742,675 10.60 315,287 4.5 n/a n/a Bank 840,126 12.00 315,047 4.5 455,068 6.5 Tier 1 capital (to average assets) Company 771,679 10.17 303,512 4.0 n/a n/a Bank 840,126 11.07 303,569 4.0 379,461 5.0 Dividend Restrictions Dividends paid by the Bank are subject to certain restrictions imposed by regulatory agencies. Capital requirements further limit the amount of dividends that may be paid by the Bank. The Bank is subject to limitations on dividend payouts if, among other things, it does not have a capital conservation buffer of 2.5% or more. The Bank had a capital conservation buffer of 3.95% as of December 31, 2020. Dividends of $65,000 and $56,750 were paid by the Bank to the Holdco during the years ended December 31, 2020 and 2019, respectively. Dividends of $34,057, or $0.17 per outstanding share on the applicable record date, were paid by the Company during the year ended December 31, 2020. Dividends of $26,796, or $0.125 per outstanding share on the applicable record date, were paid by the Company during the year ended December 31, 2019.

Parent Company Only Financial S

Parent Company Only Financial Statements	12 Months Ended
	Dec. 31, 2020
Condensed Financial Information Disclosure [Abstract]
Parent Company Only Financial Statements	Parent Company Only Financial Statements The following balance sheets, statements of income and statements of cash flows for Veritex Holdings, Inc. should be read in conjunction with the consolidated financial statements and the notes thereto. Balance Sheet December 31, 2020 2019 Assets Cash and cash equivalents $ 129,969 $ 45,563 Investment in subsidiaries 1,335,603 1,289,273 Other assets 4,638 2,780 Total assets $ 1,470,210 $ 1,337,616 Liabilities and Stockholders’ Equity Other liabilities $ 4,056 $ 1,248 Other borrowings 262,778 145,571 Total liabilities $ 266,834 $ 146,819 Stockholders’ equity Common stock $ 555 $ 511 Additional paid-in capital 1,126,437 1,117,879 Retained earnings 172,232 147,911 Accumulated other comprehensive income 56,225 19,061 Treasury stock (152,073) (94,565) Total stockholders’ equity 1,203,376 1,190,797 Total liabilities and stockholders’ equity $ 1,470,210 $ 1,337,616 Statements of Income Year Ended December 31, 2020 2019 2018 Cash dividends from subsidiary $ 65,000 $ 56,750 $ — Excess of earnings over dividend from subsidiary 16,693 43,199 44,850 Other 53 50 20 81,746 99,999 44,870 Interest on borrowings 8,529 4,672 974 Salaries and employee benefits 612 790 853 Merger and acquisition expense — 4,942 3,886 Other 798 797 529 9,939 11,201 6,242 Earnings before income tax benefit 71,807 88,798 38,628 Income tax benefit (2,076) (1,941) (713) Net income $ 73,883 $ 90,739 $ 39,341 Statements of Cash Flows Year Ended December 31, 2020 2019 2018 Cash flows from operating activities: Net income $ 73,883 $ 90,739 $ 39,341 Adjustments to reconcile net income to net cash provided by (used in) operating activities: Amortization of debt discount and debt issuance costs, net 1,263 2,353 2 Equity in undistributed net income of Bank (16,693) (43,199) (44,850) (Increase) decrease in other assets (1,853) (1,861) 2,226 Increase (decrease) in other liabilities 726 (5,024) (2,042) Net cash provided (used in) by operating activities 57,326 43,008 (5,323) Cash flows from investing activities: Net cash received in acquisition — 5,818 — Net cash used in investing activities — 5,818 — Cash flows from financing activities: Proceeds from issuance of subordinated notes, net of debt issuance costs paid 123,026 75,000 — Net proceeds from sale of common stock in public offering — — 2 Proceeds from exercise of stock warrants 109 — — Redemption of subordinated debt (5,000) — — Proceeds from exercise of employee stock options 4,301 3,938 454 Payments to tax authorities for stock-based compensation (3,829) (1,346) (593) Proceeds from payments on ESOP loan — — 109 Offering costs paid in connection with acquisition — — (899) Repurchase of treasury stock (57,470) (94,533) — Dividends paid (34,057) (26,796) — Net cash provided (used in) by financing activities 27,080 (43,737) (927) Net increase (decrease) in cash and cash equivalents 84,406 5,089 (6,250) Cash and cash equivalents at beginning of year 45,563 40,474 46,724 Cash and cash equivalents at end of year $ 129,969 $ 45,563 $ 40,474

Summary of Quarterly Financial

Summary of Quarterly Financial Statements (Unaudited)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Summary of Quarterly Financial Statements (Unaudited)	Summary of Quarterly Financial Statements (Unaudited) The following quarterly information is unaudited. However, in the opinion of management, the information reflects all adjustments, necessary for the fair presentation of the results of operations, for the periods presented. 2020 Fourth Quarter Third Quarter Second Quarter First Quarter Interest income $ 78,100 $ 77,429 $ 79,342 $ 86,979 Interest expense 11,334 11,559 13,585 19,574 Net interest income 66,766 65,870 65,757 67,405 Provision for credit losses — 8,692 16,172 31,776 Provision for credit losses for unfunded commitments 902 1,447 2,799 3,881 Noninterest income 9,012 9,795 21,290 7,247 Noninterest expense 47,373 36,408 40,061 35,545 Income tax expense (benefit) 4,702 6,198 3,987 (684) Net income $ 22,801 $ 22,920 $ 24,028 $ 4,134 Earnings per share: Basic $ 0.46 $ 0.46 $ 0.48 $ 0.08 Diluted 0.46 0.46 0.48 0.08 2019 Fourth Quarter Third Quarter Second Quarter First Quarter Interest Income $ 91,742 $ 95,643 $ 96,177 $ 95,224 Interest Expense 21,878 24,769 24,735 22,307 Net interest income 69,864 70,874 71,442 72,917 Provision for credit losses 3,493 9,674 3,335 5,012 Noninterest income 7,132 8,430 6,034 8,484 Noninterest expense 36,284 34,630 39,896 66,993 Income tax expense 8,168 7,595 7,369 1,989 Net income $ 29,051 $ 27,405 $ 26,876 $ 7,407 Earnings per share: Basic $ 0.56 $ 0.52 $ 0.50 $ 0.14 Diluted 0.56 0.51 0.49 0.13

Subsequent Events (Notes)

Subsequent Events (Notes)	12 Months Ended
	Dec. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsOn February 24, 2021, the Company announced the termination of $500,000 of an interest rate swap entered into in March 2020 to hedge the variability of cash flow payments attributable to changes in interest rates in regards to forecasted issuances of three-month term debt arrangements every three-months from March 2022 through March 2032. As a result of the interest rate swap termination, the Company expects to recognize a net pre-tax gain of approximately $42,995 into income starting in March 2022 on a straight line basis over a 10 year period.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accounting Standards Codification	Accounting Standards Codification The Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification (“ASC”) is the officially recognized source of authoritative GAAP applicable to all public and non-public non-governmental entities. Rules and interpretive releases of the Securities and Exchange Commission (“SEC”) under the authority of federal securities laws are also sources of authoritative GAAP for SEC registrants. All other accounting literature is considered non-authoritative. Citing particular content in the ASC involves specifying the unique numeric path to the content through the Topic, Subtopic, Section and Paragraph structure.
Segment Reporting	Segment Reporting The Company has one reportable segment. All of the Company’s activities are interrelated, and each activity is dependent and assessed based on how each activity of the Company supports the others. For example, lending is dependent upon the ability of the Company to fund itself with deposits and borrowings while managing interest rate and credit risk. Accordingly, all significant operating decisions are based upon analysis of the Bank as one segment or unit. The Company’s chief operating decision-maker, the Chief Executive Officer, uses the consolidated results to make operating and strategic decisions.
Reclassifications	Reclassifications Certain items in the Company's prior year financial statements were reclassified to conform to the current presentation including (i) the reclassification on the Consolidated Balance Sheets of accrued interest payable of $6,569 to accounts payable and other liabilities for the year ended December 31, 2019, (ii) the reclassification on the Consolidated Statement of Income from gain on sale of loans and other assets owned of $475 and $709 to gain on sale of mortgage loans held for sale for the years ended December 31, 2019 and 2018, respectively, (iii) the reclassification on the Consolidated Statement of Income from net gain on sales of loans and other assets owned of $4,388 and $2,347 to government guaranteed loan income, net for the years ended December 31, 2019 and 2018, respectively, (iv) the reclassification on the Consolidated Statement of Income from other noninterest income of $321 to government guaranteed loan income, net for the year ended December 31, 2019, (v) and the reclassification on the Consolidated Statement of Income of other noninterest income of $691 and $476 to rental income for the years ended December 31, 2019 and 2018, respectively.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements. Actual results could differ from those estimates. The allowance for credit losses, the fair values of financial instruments, realization of deferred tax assets, and the status of contingencies are particularly subject to change.
Cash and Cash Equivalents	Cash and Cash Equivalents For the purposes of reporting cash flows, cash and cash equivalents include cash on hand, amounts due from banks and federal funds sold. The Bank maintains deposits with other financial institutions in amounts that exceed federal deposit insurance coverage. Furthermore, federal funds sold are essentially uncollateralized loans to other financial institutions. Management regularly evaluates the credit risk associated with the counterparties to these transactions and believes that the Company is not exposed to any significant credit risks on cash and cash equivalents.
Restrictions on cash	Restrictions on CashThe Bank is required to maintain regulatory reserve balances with the FRB. On March 15, 2020, the Board of Governors of the Federal Reserve System announced that it had reduced the required regulatory reserve balance to 0% effective on March 26, 2020. The Board of Governors took this action in reaction to the economic dislocation caused by the COVID-19 pandemic and in light of the Federal Open Markets Committee's announcement in 2019 that it intends to implement monetary policy in an ample reserve regime, where reserve requirements do not play a role.
Debt Securities	Debt Securities Debt securities that the Company has both the positive intent and ability to hold to maturity are classified as held to maturity and are carried at amortized cost. Debt securities that the Company intends to hold for an indefinite period of time, but not necessarily to maturity, are classified as available for sale and are carried at fair value. Unrealized gains and losses on debt securities classified as available for sale have been accounted for as accumulated other comprehensive income (loss), net of taxes. Management determines the appropriate classification of debt securities at the time of purchase. Interest income includes amortization of purchase premiums and discounts over the period to maturity using a level-yield method, except for premiums on callable debt securities. Realized gains and losses are recorded on the sale of debt securities in noninterest income.
Equity Securities	Equity SecuritiesEquity securities are recorded at fair value, with unrealized gains and losses included in other noninterest income. The Company measures equity securities that do not have readily determinable fair values at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. Dividends on equity securities are recorded in interest income for equity securities and other investments. Realized gains and losses are recorded on the sale of equity securities in gain (loss) on sales of securities.
Allowance for Credit Losses	Allowance for Credit Losses – Available for Sale Debt Securities For available for sale debt securities in an unrealized loss position, the Company first assesses whether it intends to sell, or it is more likely than not that it will be required to sell the security before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the security's amortized cost basis is written down to fair value through income. For debt securities available for sale that do not meet the aforementioned criteria, the Company evaluates whether the decline in fair value has resulted from credit losses or other factors. In making this assessment, management considers the extent to which fair value is less than amortized cost, any changes to the rating of the security by a rating agency and adverse conditions specifically related to the security, among other factors. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security are compared to the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an ACL is recorded for the credit loss, limited by the amount that the fair value is less than the amortized cost basis. Any impairment that has not been recorded through an ACL is recognized in other comprehensive income. Changes in the ACL are recorded as provision for (or reversal of) credit loss expense. Losses are charged against the allowance when management believes the uncollectibility of an available for sale security is confirmed or when either of the criteria regarding intent or requirement to sell is met. Accrued interest receivable on available for sale debt securities is excluded from the estimate of credit losses. All o wan ce for Cr e d it Loss e s – He l d to Mat u r i ty Debt Sec u ri ti es Management measures expected credit losses on held to maturity debt securities on a collective basis by major security type. The estimate of expected credit losses considers historical credit loss information that is adjusted for current conditions and reasonable and supportable forecasts. Accrued interest receivable on held to maturity debt securities is excluded from the estimate of credit losses . Management classifies the held to maturity portfolio into the following major security types: mortgage-backed securities, coll ateralized mortgage obligations and municipal securities. All of the mortgage-backed securities and collateralized mortgage obligations held by the Company are issued by U.S. government entities and agencies. These debt securities are either explicitly or implicitly guaranteed by the U . S. government, are highly rated by major rating agencies and have a long history of no credit losses
FHLB and FRB Stock	FHLB and FRB Stock The Bank is a member of its regional Federal Reserve Bank and of the FHLB system. FHLB members are required to own a certain amount of stock based on the level of borrowings and other factors, and may invest in additional amounts. Both FRB and FHLB stock are carried at cost, restricted for sale, and periodically evaluated for impairment based on ultimate recovery of par value. Dividends are recorded in interest income for equity securities and other investments.
Loans Held for Sale	Loans Held for Sale Loans are classified as held-for-sale when management has positively determined that the loans will be sold in the foreseeable future and the Company has the intent and ability to do so. The Company’s held-for-sale loans typically consist of certain government guaranteed loans or mortgage loans. The classification may be made upon origination or subsequent to origination or purchase. Once a decision has been made to sell loans not previously classified as held-for-sale, such loans are transferred into the held-for-sale classification and carried at the lower of cost or estimated fair value on an individual loan basis, except for those held-for-sale loans for which the Company elects to use the fair value option. The fair value of loans held-for-sale is based on commitments from investors or prevailing market prices. Net unrealized losses, if any, are recognized through a valuation allowance by charges to income. The Company obtains commitments to purchase the loans from secondary market investors prior to closing of the loans. Mortgage loans held for sale are sold with servicing released. Gains and losses on sales of loans held for sale are based on the difference between the selling price and the carrying value of the related loan sold.
Fair Value Option	Fair Value Option On a specific identification basis, the Company may elect the fair value option for certain financial instruments in the period the financial instrument was originated or acquired. As of December 31, 2020, the Company had held for sale government guaranteed loans and held for investment PPP loans that the Company has elected to carry at fair value. Changes in fair value for instruments using the fair value option are recorded in noninterest income. The Company had a decrease in fair value for loans the Company elected to carry at fair value of $2,040 for the year ended December 31, 2020 as compared to an increase in the fair value for loans the Company elected to carry at fair value of $303 for the year ended December 31, 2019. There were no changes in fair value for loans held for sale using the fair value option for the year ended December 31, 2018. In addition, the Company records upfront costs and fees as incurred that are related to items for which the fair value option is elected through noninterest income. For the year ended December 31, 2020, the Company recognized upfront fees of $12,811 on PPP loans through government guaranteed loan income, net, on the Consolidated Statements of Income. There were minimal upfront fees recognized on loans electing the fair value option for the years ended December 31, 2019 and December 31, 2018. Fair Values of Financial Instruments Fair values of financial instruments are estimated using relevant market information and other assumptions. Fair value estimates involve uncertainties and matters of significant judgment regarding interest rates, credit risk, prepayments and other factors, especially in the absence of broad markets for particular items. Changes in assumptions or in market conditions could significantly affect the estimates. The fair value estimates of existing on and off-balance sheet financial instruments do not include the value of anticipated future business or the value of assets and liabilities not considered financial instruments.
Gain on Sale of Loans	Gain on Sale of Guaranteed Portion of Small Business Administration ("SBA") Loans The Company originates loans to customers under government guaranteed programs that generally provide for guarantees of 50% to 90% of each loan, subject to a maximum guaranteed amount. The Company can sell the guaranteed portion of the loan in an active secondary market and retains the unguaranteed portion in its portfolio. All sales of government guaranteed loans are executed on a servicing retained basis, and the Company retains the rights and obligations to service the loans. The standard sale structure provides for the Company to retain a portion of the cash flow from the interest payment received on the loan. When a loan sale involves the transfer of an interest less than the entire loan, the controlling accounting method under FASB ASC 860, Transfers and Servicing, requires the seller to reallocate the carrying basis between the assets transferred and the assets retained based on the relative fair value of the respective assets as of the date of sale. The maximum gain on sale that can be recognized is the difference between the fair value of the assets sold and the reallocated basis of the assets sold. The gain on sale, which is recognized in government guaranteed loan income, net on the Consolidated Statements of Income, is the sum of the cash premium on the guaranteed loan and the fair value of the servicing assets recognized, less the discount recorded on the unguaranteed portion of the loan retained by the Company. For the years ended December 31, 2020, 2019 and 2018, the Company recognized $3,379, $4,388 and $2,348, respectively, of gain on sales of government guaranteed loans. Gain on Sale of Mortgage Loans Held for Sale Certain mortgage loans held for sale are sold with servicing released. Gains and losses on sales of mortgage loans held for sale are based on the difference between the selling price and the carrying value of the loan sold.
Adoption of New Accounting Standard	Adoption of New Accounting Standard On January 1, 2020, the Company adopted Accounting Standard Update (“ASU”) 2016-13 Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , which replaces the incurred loss methodology with an expected loss methodology that is referred to as the CECL methodology. The measurement of expected credit losses under the CECL methodology is applicable to financial assets measured at amortized cost, including loan receivables and held-to-maturity debt securities. It also applies to off-balance sheet (“OBS”) credit exposures not accounted for as insurance (loan commitments, standby letters of credit, financial guarantees, and other similar instruments) and net investments in leases recognized by a lessor in accordance with Topic 842 on leases. In addition, ASC 326 made changes to the accounting for available-for-sale debt securities. One such change is to require credit losses to be presented as an allowance rather than as a write-down on available-for-sale debt securities management does not intend to sell or believes that it is more likely than not they will be required to sell. The Company adopted ASC 326 using the modified retrospective method for all financial assets measured at amortized cost, net investments in leases and OBS credit exposures. Results for reporting periods beginning after January 1, 2 020 are presented under ASC 326 while prior period amounts continue to be reported in accordance with previously applicable GAAP. The Company recorded a net decrease to retained earnings of $15,505 as of January 1, 2020 for the cumulative effect of adopting ASC 326. The Company adopted ASC 326 using the prospective transition approach for financial assets purchased with credit deterioration (“PCD”) that were previously classified as PCI and accounted for under ASC 310-30. In accordance with the standard, managem ent did not reassess whether PCI assets met the criteria of PCD assets as of the date of adoption. On January 1, 2020, the amortized cost basis of the PCD assets were adjusted to reflect the addition of $19,710 of the ACL. The remaining noncredit discount will be accreted into interest income at the effective interest rate. As allowed by ASC 326, the Company elected to maintain pools of loans accounted for under ASC 310-30. In accordance with the standard, management did not reassess whether modifications to individual acquired financial assets accounted for in pools were troubled debt restructurings as of the date of adoption. The following table illustrates the impact of ASC 326. January 1, 2020 As Reported Pre-ASC 326 Impact of ASC 326 Adoption Assets: Allowance for credit losses on debt securities held-to-maturity $ — $ — $ — Allowance for credit losses on loans Construction and land 3,760 3,822 (62) Farmland 65 61 4 1 - 4 family residential 6,002 1,378 4,624 Multi-family residential 2,593 1,965 628 Owner Occupied Commercial Real Estate 13,066 1,978 11,088 Non-Owner Occupied Commercial Real Estate 15,314 8,139 7,175 Commercial 27,729 12,369 15,360 Consumer 442 122 320 Allowance for credit losses on loans $ 68,971 $ 29,834 $ 39,137 Liabilities: Allowance for credit losses on OBS credit exposures $ 1,718 $ 878 $ 840 ASU 2019-12, "Income Taxes (Topic 740)" ("ASU 2019-12") simplifies the accounting for income taxes by removing certain exceptions and improves the consistent application of GAAP by clarifying and amending other existing guidance. ASU 2019-012 will be effective for us on January 1, 2021 and is not expected to have any material impact on our consolidated financial statements. ASU 2020-04, " Reference Rate Reform (Topic 848) : Facilitation of the Effects of Reference Rate Reform on Financial Reporting" ("ASU 2020-04") amendments provide optional guidance for a limited time to ease the potential burden in accounting for reference rate reform. The new guidance provides optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships and other transactions affected by reference rate reform if certain criteria are met. The amendments apply only to contracts and hedging relationships that reference the London Interbank Offered Rate ("LIBOR") or another reference rate expected to be discontinued due to reference rate reform. These amendments are effective upon issuance and may be applied prospectively to contract modifications made and hedging relationships entered into or evaluated on or before December 31, 2022. The Company is currently evaluating the amended guidance and the impact on its consolidated financial statements and related disclosures. ASU 2020-08, Codification Improvements to Subtopic 310-20, Receivables - Nonrefundable Fees and Other Costs ("ASU 2020-08") clarifies the accounting for the amortization of purchase premiums for callable debt securities with multiple call dates. ASU 2020-8 will be effective for us on January 1, 2021 and is not expected to have a significant impact on our consolidated financial statements and related disclosures.
Loans Held for Investment	Loans Held for Investments Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at amortized cost, net of the ACL. Amortized cost is the principal balance outstanding, net of purchase premiums and discounts, fair value hedge accounting adjustments, deferred loan fees and costs. The Company has made a policy election to exclude accrued interest from the amortized cost basis of loans and report accrued interest separately from the related loan balance in other assets on the Consolidated Balance Sheets. Interest on loans is recognized using the effective-interest method on the daily balances of the principal amounts outstanding. Loan origination fees, net of certain direct origination costs, are deferred and recognized in interest income using the level-yield method without anticipating prepayments. Loans are considered past due if the required principal and interest payments have not been received as of the date such payments were due in accordance with the terms of the loan agreement. The accrual of interest on loans is discontinued when, in management’s opinion, the borrower may be unable to meet payment obligations as they come due, as well as when required by regulatory provisions. Loans may be placed on nonaccrual status regardless of whether or not such loans are considered past due. When a loan is placed on nonaccrual status, all interest accrued but not received for loans placed on nonaccrual is reversed against interest income. Interest received on such loans is accounted for on the cash-basis or cost-recovery method, until qualifying for return to accrual. Under the cost-recovery method, interest income is not recognized until the loan balance is reduced to zero. Under the cash-basis method, interest income is recorded when the payment is received in cash. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. Acquired Loans Prior to January 1, 2020, loans acquired in a business combination that had evidence of deterioration of credit quality since origination and for which it was probable, at acquisition, that the Company would be unable to collect all contractually required payments receivable were considered purchased credit impaired (“PCI”). PCI loans were accounted for individually or aggregated into pools of loans based on common risk characteristics such as credit grade, loan type, and date of origination. All loans considered to be PCI loans prior to January 1, 2020 were converted to PCD loans upon the Company’s adoption of ASC 326. The Company elected to maintain pools of loans that were previously accounted for under ASC 310-30 and will continue to account for these pools as a unit of account for all applicable areas of accounting which include credit loss measurement, interest income recognition, non-accrual determination, write-off determination and trouble debt restructuring identification. Loans are only removed from the existing pools if they are foreclosed, written off, paid off, or sold. Upon adoption of ASC 326, the ACL was determined for each loan or pool and added to the loan or pool's carrying amount to establish a new amortized cost basis. The difference between the unpaid principal balance of the loan or pool and the new amortized cost basis is the noncredit premium or discount which will be accreted into interest income over the remaining life of the loan or pool. Changes to the ACL after adoption are recorded through provision for credit loss expense. Subsequent to January 1, 2020, loans acquired in a business combination that have experienced more-than-insignificant deterioration in credit quality since origination are considered PCD loans. At the acquisition date, an estimate of expected credit losses is made for groups of PCD loans with similar risk characteristics and individual PCD loans without similar risk characteristics. This initial ACL is allocated to individual PCD loans and added to the purchase price or acquisition date fair values to establish the initial amortized cost basis of the PCD loans. As the initial ACL is added to the purchase price, there is no credit loss expense recognized upon acquisition of a PCD loan. Any difference between the unpaid principal balance of PCD loans and the amortized cost basis is considered to relate to noncredit factors and results in a discount or premium. Discounts and premiums are recognized through interest income on a level-yield method over the life of the loans. For acquired loans not deemed purchased credit deteriorated at acquisition, the differences between the initial fair value and the unpaid principal balance are recognized as interest income on a level-yield basis over the lives of the related loans. At the acquisition date, an initial allowance for expected credit losses is estimated and recorded as credit loss expense. The subsequent measurement of expected credit losses for all acquired loans is the same as the subsequent measurement of expected credit losses for originated loans.
Loans and Allowance for Loan losses	Collateral Dependent Financial Assets Loans that do not share similar risk characteristics are evaluated on an individual basis. For collateral dependent financial assets where the Company has determined that foreclosure of the collateral is probable, or where the borrower is experiencing financial difficulty and the Company expects repayment of the financial asset to be provided substantially through the operation or sale of the collateral, the ACL is measured based on the difference between the fair value of the collateral and the amortized cost basis of the asset as of the measurement date. When repayment is expected to be from the operation of the collateral, expected credit losses are calculated as the amount by which the amortized cost basis of the financial asset exceeds the present value of expected cash flows from the operation of the collateral. When repayment is expected to be from the sale of the collateral, expected credit losses are calculated as the amount by which the amortized costs basis of the financial asset exceeds the fair value of the underlying collateral less estimated costs to sell. The ACL may be zero if the fair value of the collateral at the measurement date exceeds the amortized cost basis of the financial asset. For collateralized financial assets that are not collateral dependent, the Company will consider the nature of the collateral, potential future changes in collateral values, and historical loss information for financial assets secured with similar collateral to determine the ACL. Troubled-debt Restructurings (TDRs) From time to time, the Company may modify its loan agreement with a borrower. A modified loan is considered a TDR, using Accounting Standards Codification 310-40, “ Receivables – Troubled Debt Restructurings by Creditors ,” (“ASC 310-40”), when two conditions are met: (i) the borrower is experiencing financial difficulty and (ii) concessions are made by the Company that would not otherwise be considered for a borrower with similar credit risk characteristics. Modifications to loan terms may include a lower interest rate, a reduction of principal, or a longer term to maturity. The ACL on a TDR is measured using the same method as all other loans held for investment, except that the original interest rate is used to discount the expected cash flows, not the rate specified within the restructuring. In addition, when management has a reasonable expectation of executing a TDR, the expected effect of the modification is included in the estimate of the ACL. Contractual Term The Company’s estimate of the ACL reflects losses expected over the remaining contractual life of the assets. The contractual term does not consider extensions, renewals or modifications unless the Company has identified an expected TDR. Discounted Cash Flow Method The Company uses the DCF method to estimate expected credit losses for the commercial real estate, construction and land, 1-4 family residential, commercial (excluding liquid credit and premium finance), and consumer loan pools. For each of these loan segments, the Company generates cash flow projections at the instrument level wherein payment expectations are adjusted for estimated prepayment speeds, curtailment rates, time to recovery, probability of default and loss given default. The modeling of expected prepayment speeds, curtailment rates and time to recovery are based on historical internal data. The Company uses regression analysis of historical internal and peer data to determine suitable loss drivers to utilize when modeling lifetime probability of default and loss given default. This analysis also determines how expected probability of default and loss given default will react to forecasted levels of the loss drivers. For all loan pools utilizing the DCF method, management utilizes and forecasts Texas unemployment as a loss driver. Management also utilizes and forecasts either one-year percentage change in Texas gross domestic product or one-year percentage change in the commercial real estate property index as a second loss driver depending on the nature of the underlying loan pool and how well that loss driver correlates to expected future losses. For all DCF models, management has determined that four quarters represents a reasonable and supportable forecast period and reverts back to a historical loss rate over four quarters on a straight-line basis as of the reporting period. Management leverages economic projections from a reputable and independent third party to inform its loss driver forecasts over the four-quarter forecast period. Other internal and external indicators of economic forecasts are also considered by management when developing the forecast metrics. The combination of adjustments for credit expectations (default and loss) and timing expectations (prepayment speeds, curtailment rates and time to recovery) produces an expected cash flow stream at the instrument level. Instrument effective yield is calculated, net of the impacts of prepayment assumptions, and the instrument expected cash flows are then discounted at that effective yield to produce an instrument-level net present value of expected cash flows (“NPV”). An ACL is established for the di fference between the instrument’s NPV and amortized cost basis. The ACL is further refined for qualitative loss factors based on management's judgment of company, market, industry or business specific data, changes in underlying loan composition of specific portfolios, trends relating to credit quality, delinquency, non-performing and adversely rated loans, and reasonable and supportable forecasts of economic conditions. Loss-Rate Method The Company uses a loss-rate method to estimate expected credit losses for its farmland and MW loan pool. For these loan segments, the Company applies an expected loss ratio based on internal and peer historical losses adjusted as appropriate for qualitative factors. Qualitative loss factors are based on management's judgment of company, market, industry or business specific data, changes in underlying loan composition of specific portfolios, trends relating to credit quality, delinquency, non-performing and adversely rated loans, and reasonable and supportable forecasts of economic conditions. Probability of Default/Loss Given Default Method The Company uses the PD/L GD method to estimate expected credit losses for the construction and land, 1-4 family residential, OOCRE, NOOCRE, commercial and consumer PCD loan pools. For each of these loan segments, the Company generates cash flow projections at the instrument level wherein payment expectations are adjuste d for estimated prepayment speeds, time to recovery, probability of default, and loss given default. The combination of adjustments for credit expectations (default and loss) and timing expectations (prepayment and time to recovery) produces an expected cash flow stream at the instrument level. An ACL is established for the di fference between the instrument’s undiscounted cash flows and amortized cost basis. The ACL is further refined for qualitative loss factors based on management's judgment of company, market, industry or business specific data, changes in underlying loan composition of specific portfolios, trends relating to credit quality, delinquency, non-performing and adversely rated loans, and reasonable and supportable forecasts of economic conditions.
Loan Commitments and Allowance for Credit Losses on Off-Balance Sheet Credit Exposures	Loan Commitments and Allowance for Credit Losses on Off-Balance Sheet Credit Exposures Financial instruments include OBS credit instruments, such as commitments to make loans and standby letters of credit, issued to meet customer financing needs. The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for OBS loan commitments is represented by the contractual amount of those instruments. Such financial instruments are recorded when they are funded. The Company records an ACL on OBS credit exposures, unless the commitments to extend credit are unconditionally cancellable, through a charge to provision for credit losses for unfunded commitments included in the Company’s Consolidated Statements of Income. The ACL on OBS credit exposures is estimated by loan segment at each balance sheet date under the CECL model using the same methodologies as portfolio loans, taking into consideration the likelihood that funding will occur, and is included in accounts payable and other liabilities on the Company’s consolidated balance sheets.
Derivatives Financial Instruments	Derivative Financial Instruments (Not Designated as Accounting Hedges) The Company has entered into certain derivative instruments pursuant to a customer accommodation program under which the Company enters into an interest rate swap, cap or collar agreement with a commercial customer and an agreement with offsetting terms with a correspondent bank. These derivative instruments are not designated as accounting hedges and the swap fees and changes in net fair value are recognized in noninterest income or expense on the Company’s condensed consolidated statements of income and the fair value amounts are included in other assets and accounts payable and other liabilities on the Company’s condensed consolidated balance sheets. Derivative Financial Instruments (Designated as Accounting Hedges) Cash flow hedge relationships mitigate exposure to the variability of future cash flows or other forecasted transactions. The Company uses interest rate swaps, floors, caps and collars to manage overall cash flow changes related to interest rate risk exposure on benchmark interest rate loans. The entire change in the fair value related to the derivative instrument is recognized as a component of other comprehensive income and subsequently reclassified into interest income when the forecasted transaction affects income. The Company assesses the “effectiveness” of hedging derivatives on the date an arrangement was entered into and on a prospective basis at least quarterly. Hedge “effectiveness” is determined by the extent to which changes in the fair value of a derivative instrument offset changes in the fair value, cash flows or carrying value attributable to the risk being hedged. If the relationship between the change in the fair value of the derivative instrument and the change in the hedged item falls within a range considered to be the industry norm, the hedge is considered “highly effective” and qualifies for hedge accounting. A hedge is “ineffective” if the relationship between the changes falls outside the acceptable range. In that case, hedge accounting is discontinued on a prospective basis. The time value of the option is excluded from the assessment of effectiveness and is recognized in earnings using a straight-line amortization method over the life of the hedge arrangement. Gains or losses resulting from the termination or sale of a derivative accounted for as a cash flow hedge remain in other comprehensive income and are accreted or amortized to earnings over the remaining period of the former hedging relationship unless the forecasted transaction becomes probable of not occurring.
Transfers of Financial Assets	Transfers of Financial Assets Transfers of financial assets (generally consisting of sales of loans held for sale and loan participations with unaffiliated banks) are accounted for as sales when control over the assets has been relinquished. Control over transferred assets is deemed to be surrendered when the assets have been isolated from the Company, the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets, and the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity.
Bank Premises and Equipment	Bank Premises and Equipment Buildings and improvements, furniture and equipment are carried at cost less accumulated depreciation computed using the straight-line method over the estimated useful lives of the respective assets as follows: Buildings and improvements 10 - 40 years Site improvements 15 years Tenant improvements Lease term Leasehold improvements Lease term Furniture and equipment 3 - 10 years Major replacements and betterments are capitalized while maintenance and repairs are charged to expense when incurred. Gains or losses on dispositions are reflected in the consolidated statements of income as incurred. Bank premises and equipment with definite lives are tested for impairment when a triggering event occurs. No impairment charges related to bank premises and equipment assets were recorded during the years ended December 31, 2020, 2019 and 2018.
Leases	Leases FASB ASU 2016-02, Leases (Topic 842) (“ASU 2016-02”), requires that lessees and lessors recognize lease assets and lease liabilities on the balance sheet and disclose key information about leasing arrangements. Topic 842 was subsequently amended by ASU 2018-11, Targeted Improvements. ASU 2016-02 provides for a modified retrospective transition approach requiring lessees to recognize and measure leases on the balance sheet at the beginning of either the earliest period presented or as of the beginning of the period of adoption. The Company elected to apply ASU 2016-02 as of the beginning of the period of adoption, January 1, 2019, and did not restate comparative periods. The Company has no material leasing arrangements for which it is the lessor of property or equipment. The Company made an accounting policy election not to apply the recognition requirements in the new standard to short-term leases. The Company has elected to apply the package of practical expedients as both the lessor and lessee allowed by the new standard under which the Company need not reassess whether any expired or existing contracts are or contain leases, the Company need not reassess the lease classification for any expired or existing lease, and the Company need not reassess initial direct costs for any existing leases. The Company has also elected to use the practical expedient to make an accounting policy election for leases of certain underlying assets to include both lease and nonlease components as a single component and account for that single component as a lease. The Company’s operating leases relate primarily to office space and bank branches. Right-of-use (“ROU”) assets and operating lease liabilities are recognized at lease commencement based on the present value of the remaining lease payments using a discount rate that represents the Company’s incremental borrowing rate at the lease commencement date. ROU assets are further adjusted for lease incentives, deferred rent and prepaid rent. Operating lease expense, which consists of amortization of the ROU asset and the implicit interest accreted on the operating lease liability, is recognized on a straight-line basis over the lease term, and is recorded in occupancy and equipment expense in the consolidated statements of income. Certain of the Company’s leases contain options to renew the lease; however, these renewal options are not included in the calculation of the lease liabilities as they are not reasonably certain to be exercised. As a result of implementing ASU 2016-02, the Company recognized an operating lease ROU asset of $18,705 and an operating lease liability of $18,753 on January 1, 2019, with no impact on the consolidated statement of income or consolidated statement of cash flows compared to the prior lease accounting model. The ROU asset and operating lease liability are recorded in other assets and other liabilities, respectively, in the consolidated balance sheets. See Note 8 - Leases for additional information.
Securities Sold Under Agreements to Repurchase	Securities Sold Under Agreements to Repurchase Securities sold under agreements to repurchase represent the purchase of interests in securities by the Company’s customers. Securities sold under agreements to repurchase are stated at the amount of cash received in connection with the transaction. The Company does not account for any of its repurchase agreements as sales for accounting purposes in its financial statements. Repurchase agreements are settled on the following business day. All securities sold under agreements to repurchase are collateralized by pledged debt securities. The debt securities underlying the repurchase agreements are held in safekeeping by the Bank’s safekeeping agent.
Other Real Estate Owned	Other Real Estate Owned Other real estate owned represents properties acquired through or in lieu of loan foreclosure and is initially recorded at fair value less estimated costs to sell. At foreclosure, if the fair value, less estimated costs to sell, of the real estate acquired is less than the Bank’s recorded investment in the related loan, a write-down is recognized through a charge to the allowance for credit losses. If fair value declines subsequent to foreclosure, a valuation allowance is recorded through expense. Operating costs after acquisition are expensed.
Bank-Owned Life Insurance	Bank-Owned Life Insurance The Company has purchased life insurance policies on certain employees. These bank-owned life insurance (“BOLI”) policies are recorded in the accompanying consolidated balance sheets at their cash surrender values. Income from these policies and changes in the cash surrender values are recorded in noninterest income in the accompanying consolidated statements of income.
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill resulting from a business combination represents the excess of the fair value of the consideration transferred over the fair value of the net assets acquired and liabilities assumed as of the acquisition date. Goodwill is not amortized but is reviewed for potential impairment annually on October 31 of each fiscal year or when a triggering event occurs. The Company may first assess qualitative factors to determine whether it is more likely than not (that is, a likelihood of more than 50%) that the fair value of a reporting unit is less than its carrying amount, including goodwill. The Company has an unconditional option to bypass the qualitative assessment for any reporting unit in any period and proceed directly to performing the quantitative goodwill impairment test, and the Company may resume performing the qualitative assessment in any subsequent period. If the Company determines that it is more likely than not that the fair value of a reporting unit is less than its carrying amount, then the Company proceeds to perform the quantitative goodwill impairment test. The quantitative goodwill impairment test, used to identify both the existence of potential impairment and the amount of impairment loss, compares the fair value of a reporting unit with its carrying amount, including goodwill. If the carrying amount of a reporting unit exceeds its fair value, an impairment loss shall be recognized in an amount equal to that excess, limited to the total amount of goodwill allocated to that reporting unit. Any such adjustments to goodwill are reflected in the results of operations in the periods in which they become known. During the second quarter of 2020, the Company observed a sustained decline in the market valuation of the Company’s common stock as a result of continued economic disruption occurring after the first quarter of 2020 primarily due to the COVID-19 pandemic. As a result, the Company determined that it was more likely than not that the fair value of the Company’s sole reporting unit was below its carrying value and proceeded to perform an interim quantitative impairment test. The Company determined the fair value of its reporting unit using a combination of a market and an income approach. Upon completion of quantitative evaluation, the Company determined that, as of June 30, 2020, the fair value of the Company's reporting unit exceeded its related carrying value, and therefore goodwill was not impaired. The Company performed its annual goodwill impairment test as of October 31, 2020 using a qualitative impairment assessment and determined that it was not more likely than not that the fair value of our reporting unit was less than its carrying amount. The Company also did not identify any potential impairment indicators subsequent to our annual assessment. Management will continue to monitor events that could impact this conclusion in the future. Intangible assets consist of core deposit intangibles and in-place lease intangibles associated with the purchase of our corporate office. Intangible assets are initially recognized based on a valuation performed as of the acquisition date and are amortized on a straight-line basis over their estimated useful lives of the respective intangible assets as follows: Core deposit intangible 7 - 10 years In-place lease intangible Lease term
Servicing Assets	Servicing Assets The Company accounts for its servicing assets at amortized cost in accordance with ASC 860, " Servicing Assets and Liabilities ." The codification requires that servicing rights acquired through the origination of loans, which are sold with servicing rights retained, are recognized as separate assets. Servicing assets are recorded as the difference between the contractual servicing fees and adequate compensation for performing the servicing, and are periodically reviewed and adjusted for any impairment. The amount of impairment recognized, if any, is the amount by which the servicing assets exceed their fair value. The amount of recovery, if any, cannot exceed the previous impairment recognized. Fair value of the servicing assets is estimated using discounted cash flows based on current market interest rates. Servicing rights are amortized over their estimated lives.
Marketing Expense	Marketing ExpenseThe Company expenses all marketing costs as they are incurred.
Income Taxes	Income Taxes The Company files a consolidated income tax return with its subsidiaries. Federal income tax expense or benefit is allocated on a separate return basis. The Company accounts for income taxes using the asset and liability approach for financial accounting and reporting. Deferred tax assets and liabilities are reflected at currently enacted income tax rates applicable to the period in which the deferred tax assets and liabilities are expected to be realized or settled. As changes in tax laws or rates are enacted, deferred tax assets and liabilities are adjusted through the provision for income taxes. Valuation allowances are established when necessary to reduce deferred tax assets to the amount expected to be realized. Realization of deferred tax assets is dependent upon the generation of a sufficient level of future taxable income and recoverable taxes paid in prior years. The Company may recognize the tax benefit of an uncertain tax position only if it is more likely than not that the tax position will be sustained upon examination by the taxing authorities based on the technical merits of the position. For tax positions meeting the more-likely-than-not threshold, the amount recognized in the financial statements would be the benefit that has a greater than 50% likelihood of being realized upon ultimate settlement with the relevant tax authority. For the years ended December 31, 2020 and 2019, management has determined there are no material uncertain tax positions. When necessary, the Company would include interest assessed by taxing authorities in “interest expense” and penalties related to income taxes in “other expense” on its Consolidated Statements of Income. The Company recorded $143 and $309 of interest or penalties related to income tax for the year ended December 31, 2020 and 2019, respectively, and no interest or penalties related to income tax for the year ended December 31, 2018. With few exceptions, such as state examinations, the Company is generally no longer subject to U.S. federal income tax examinations by tax authorities for the years before 2017 and state income tax examinations for tax years prior to 2016 .
Revenue from Contracts with Customer	Revenue from Contracts with Customers The Company records revenue from contracts with customers in accordance with ASC 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, the Company has made no significant judgments in applying the revenue guidance prescribed in ASC 606 that affect the determination of the amount and timing of revenue from contracts with customers.
Stock Based Compensation	Stock Based Compensation Compensation cost is recognized for stock options and other equity awards (performance and non-performance based) issued to employees and directors, based on the fair value of these awards at the date of grant. A Black-Scholes model is utilized to estimate the fair value of stock options. The market price of the Company’s common stock on the date of grant is used to estimate fair value for other nonperformance based equity awards. A Monte Carlo simulation is used to estimate the fair value of performance-based restricted stock units that include a vesting condition and a market condition based on the Company’s total shareholder return relative to a peer group comprised of commercial banks in similar markets, which determines the number of shares of Company common stock subject to the restricted stock unit. Compensation cost is recognized over the required service period, generally defined as the vesting period. For awards with graded vesting, compensation cost is recognized on a straight-line basis over the requisite service period for the entire award. Liability-Classified Awards The fair value of a liability award is determined on a quarterly basis beginning at the grant date until final vesting. Changes in the fair value of liability awards are recorded over the vesting period of the award. Changes in the fair value of liability awards that occur during the requisite service period are recognized as compensation cost over that period. The percentage of the fair value that is accrued as compensation cost at the end of each period equals the percentage of the requisite service that has been rendered at that date. Changes in the fair value of a liability award that occur after the end of the requisite service period are recognized as compensation cost in the period in which the changes occur. Any difference between the amount for which a liability award is settled and its fair value at the settlement date is an adjustment of compensation cost in the period of settlement. Compensation cost for liability awards is recorded in salaries and employee benefits and the associated liability is recorded in accounts payable and accrued expenses. For liability to equity award modifications, the aggregate amount of compensation cost recognized is the fair value-based measure of the award on the modification date. On the modification date, the Company reclassifies the previously recorded share-based compensation liability to additional paid-in capital.
Treasury Stock	Treasury Stock Treasury stock is stated at cost, which is determined by the first-in, first-out method.
Comprehensive Income	Comprehensive Income Comprehensive income includes all changes in stockholders’ equity during a period, except those resulting from transactions with stockholders. In addition to net income, comprehensive income includes the net effect of changes in the fair value of available for sale debt securities, net of tax, and the net effect of changes in fair value of derivative instruments designated as cash flow hedges. Comprehensive income is reported in the accompanying consolidated statements of comprehensive income.
Business Combinations	Business Combinations The Company applies the acquisition method of accounting for business combinations. Under the acquisition method, the acquiring entity in a business combination recognizes 100% of the assets acquired and liabilities assumed at their acquisition date fair values. Management utilizes valuation techniques appropriate for the asset or liability being measured in determining these fair values. Any excess of the purchase price over amounts allocated to assets acquired, including identifiable intangible assets, and liabilities assumed is recorded as goodwill. Where amounts allocated to assets acquired and liabilities assumed is greater than the purchase price, a bargain purchase gain is recognized. Acquisition-related costs are expensed as incurred.
Earnings Per Share	Earnings Per ShareEarnings per share (“EPS”) are based upon the weighted-average number of shares outstanding.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of New Accounting Pronouncements and Changes in Accounting Principles	The following table illustrates the impact of ASC 326. January 1, 2020 As Reported Pre-ASC 326 Impact of ASC 326 Adoption Assets: Allowance for credit losses on debt securities held-to-maturity $ — $ — $ — Allowance for credit losses on loans Construction and land 3,760 3,822 (62) Farmland 65 61 4 1 - 4 family residential 6,002 1,378 4,624 Multi-family residential 2,593 1,965 628 Owner Occupied Commercial Real Estate 13,066 1,978 11,088 Non-Owner Occupied Commercial Real Estate 15,314 8,139 7,175 Commercial 27,729 12,369 15,360 Consumer 442 122 320 Allowance for credit losses on loans $ 68,971 $ 29,834 $ 39,137 Liabilities: Allowance for credit losses on OBS credit exposures $ 1,718 $ 878 $ 840
Schedule of Estimated Lives of the Respective Assets	Buildings and improvements, furniture and equipment are carried at cost less accumulated depreciation computed using the straight-line method over the estimated useful lives of the respective assets as follows: Buildings and improvements 10 - 40 years Site improvements 15 years Tenant improvements Lease term Leasehold improvements Lease term Furniture and equipment 3 - 10 years
Schedule of Intangible Assets	Intangible assets are initially recognized based on a valuation performed as of the acquisition date and are amortized on a straight-line basis over their estimated useful lives of the respective intangible assets as follows: Core deposit intangible 7 - 10 years In-place lease intangible Lease term Intangible assets in the accompanying consolidated balance sheets are summarized as follows: December 31, 2020 Remaining Weighted Gross Net Amortization Intangible Valuation Accumulated Intangible Period Asset Allowance Amortization Asset Core deposit intangibles 6.0 years $ 81,769 $ — $ 24,011 $ 57,758 Servicing asset 7.4 years 6,847 556 2,928 3,363 Intangible lease assets 1.4 years 4,779 — 4,167 612 $ 93,395 $ 556 $ 31,106 $ 61,733 December 31, 2019 Remaining Weighted Gross Net Amortization Intangible Valuation Accumulated Intangible Period Asset Allowance Amortization Asset Core deposit intangibles 7.0 years $ 81,769 $ — $ 14,206 $ 67,563 Servicing asset 6.7 years 5,726 188 2,425 3,113 Intangible lease assets 1.4 years 4,765 — 3,178 1,587 $ 92,260 $ 188 $ 19,809 $ 72,263
Schedule of Reconciliation Between Weighted Average Shares Used for Calculating Basic and Diluted EPS	The table below sets forth the reconciliation between weighted average shares used for calculating basic and diluted EPS for the years ended December 31, 2020, 2019 and 2018. Year Ended December 31, 2020 2019 2018 Earnings (numerator) Net income allocated to common stockholders $ 73,883 $ 90,739 $ 39,341 Shares (denominator) Weighted average shares outstanding for basic EPS (thousands) 49,883 53,154 24,169 Dilutive effect of employee stock-based awards 153 824 421 Adjusted weighted average shares outstanding 50,036 53,978 24,590 Earnings per share: Basic $ 1.48 $ 1.71 $ 1.63 Diluted $ 1.48 $ 1.68 $ 1.60

Supplemental Statement of Cas_2

Supplemental Statement of Cash Flows (Tables)	12 Months Ended
	Dec. 31, 2020
Supplemental Cash Flow Elements [Abstract]
Schedule of Other Supplemental Cash Flow Information	Other supplemental cash flow information is presented below: Year Ended December 31, 2020 2019 2018 Supplemental Disclosures of Cash Flow Information: Cash paid for interest $ 58,236 $ 88,175 $ 29,178 Cash paid for income taxes 40,690 24,100 6,525 Supplemental Disclosures of Non-Cash Flow Information: Setup of ROU asset and lease liability upon adoption of ASC 842 $ — $ 9,380 $ — Lease liabilities arising from obtaining right-of-use assets 4,123 — — Reclassification of deferred offering costs paid in 2018 from other assets to additional paid-in-capital — 788 — Subordinated debt issuance costs accrued but not yet paid in 2019 — 315 — Reclassification of lease intangibles, cease-use liability and deferred rent liability to ROU asset upon adoption of ASC 842 — (48) — Net foreclosure of other real estate owned and repossessed assets 2,764 5,995 8 Loans held for investment transferred to loans held for sale 4,511 — — Reclassification of branch assets held for sale to loans held for investment — 26,171 — Reclassification of branch liabilities held for sale to interest-bearing transaction and savings deposits — 1,713 —
Schedule of Supplemental Noncash Investing Activities	Year Ended December 31, 2020 2019 2018 Noncash assets acquired 1 Debt securities $ — $ 660,792 $ — Equity securities — 12,322 — FHLB and FRB stock — 29,490 — Loans held for sale — 9,360 — Loans held for investment — 3,245,248 (4,050) Accrued interest receivable 2 — 11,395 — Bank-owned life insurance — 56,841 — Bank premises, furniture and equipment — 36,855 1,162 Investment in unconsolidated subsidiaries — 666 — Intangible assets, net — 65,718 (956) Goodwill — 209,393 1,995 Other assets — 11,124 1,806 Right of use asset 2 — 9,373 — Deferred taxes 2 — 11,783 — Current taxes 2 — 1,812 — Assets held for sale — 85,307 — Total assets $ — $ 4,457,479 $ (43) Noncash liabilities assumed Noninterest-bearing deposits $ — $ 825,364 $ 303 Interest-bearing deposits — 1,300,825 — Certificates and other time deposits — 1,346,915 — Accounts payable and other liabilities — 26,491 — Lease liability 3 — 9,373 — Accrued interest payable — 5,181 (260) Securities sold under agreements to repurchase — 3,226 — Advances from FHLB — 300,000 — Subordinated debentures and subordinated notes — 56,233 — Liabilities held for sale — 52,682 — Total liabilities $ — $ 3,926,290 $ 43 Total equity — — — 29,532,957 shares of common stock exchanged in connection with Green $ — $ 631,415 $ — 497,594 share of common stock exchanged in connection with Green vested RSUs $ — $ 5,801 $ — 1 Noncash assets acquired and noncash liabilities assumed during 2019 relate to our acquisition of Green. Noncash assets acquired and noncash liabilities assumed during 2018 relate to our acquisitions of Sovereign and Liberty. 2 Accrued interest receivable, right of use asset, deferred taxes and current taxes are included in "Other assets" in our consolidated balance sheets for the year ended December 31, 2019. 3 Lease liability is included in "Accounts payable and other liabilities" in our consolidated balance sheets for the year ended December 31, 2019.

Securities (Tables)

Securities (Tables)	12 Months Ended
	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Equity Securities, FV-NI	The gross unrealized gain recognized on equity securities with readily determinable fair values recorded in other noninterest income in the Company’s consolidated statements of income were as follows: 2020 2019 2018 Unrealized gain recognized on equity securities with a readily determinable fair value $ 480 $ 325 $ —
Schedule of Carrying Amount and Approximate Fair Values of Available-For-Sale Securities	The amortized cost, related gross unrealized gains and losses, allowance for credit losses and the fair value of available for sale and held to maturity debt securities are as follows: December 31, 2020 Gross Gross Amortized Unrealized Unrealized Allowance for Cost Gains Losses Credit Losses Fair Value Available for Sale Corporate bonds $ 173,050 $ 6,417 $ 1,297 — $ 178,170 Municipal securities 115,533 10,129 6 — 125,656 Mortgage-backed securities 240,320 16,047 42 — 256,325 Collateralized mortgage obligations 388,080 20,895 66 — 408,909 Asset-backed securities 52,335 2,934 — — 55,269 $ 969,318 $ 56,422 $ 1,411 $ — $ 1,024,329 Gross Gross Amortized Unrealized Unrealized Allowance for Cost Gains Losses Credit Losses Fair Value Held to maturity Mortgage-backed securities $ 6,982 $ 849 $ — — $ 7,831 Collateralized mortgage obligations 1,620 103 — — 1,723 Municipal securities 22,270 2,459 — — 24,729 $ 30,872 $ 3,411 $ — — $ 34,283 The Company did not transfer any debt securities from available for sale to held to maturity at fair value during the year ended December 31, 2020. December 31, 2019 Gross Gross Amortized Unrealized Unrealized Cost Gains Losses Fair Value Available for Sale Corporate bonds 76,997 1,974 — 78,971 Municipal securities 74,956 3,724 — 78,680 Mortgage-backed securities 288,938 9,512 260 298,190 Collateralized mortgage obligations 431,276 6,465 1,503 436,238 Asset-backed securities 69,964 2,322 — 72,286 $ 942,131 $ 23,997 $ 1,763 $ 964,365 Held to maturity Mortgage-backed securities $ 8,621 $ 452 $ — $ 9,073 Collateralized mortgage obligations 1,809 43 — 1,852 Municipal securities 22,535 1,350 — 23,885 $ 32,965 $ 1,845 $ — $ 34,810
Schedule of Investment Securities That Have Been in a Continuous Unrealized Loss Position	The following tables disclose the Company’s available for sale debt securities in an unrealized loss position for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time that individual debt securities have been in a continuous loss position: December 31, 2020 Less Than 12 Months 12 Months or More Totals Fair Unrealized Fair Unrealized Fair Unrealized Value Loss Value Loss Value Loss Available for Sale Corporate bonds 31,953 1,297 — — 31,953 1,297 Municipal securities $ 2,667 $ 6 $ — $ — $ 2,667 $ 6 Mortgage-backed securities 34,402 108 — — 34,402 108 $ 69,022 $ 1,411 $ — $ — $ 69,022 $ 1,411 December 31, 2019 Less Than 12 Months 12 Months or More Totals Fair Unrealized Fair Unrealized Fair Unrealized Value Loss Value Loss Value Loss Available for Sale Municipal securities 468 1 — — 468 1 Mortgage-backed securities 28,883 370 — — 28,883 370 Collateralized mortgage obligations 109,749 1,392 — — 109,749 1,392 $ 139,100 $ 1,763 $ — $ — $ 139,100 $ 1,763
Schedule of Amortized Costs and Estimated Fair Values of Securities Available-For-Sale, by Contractual Maturity	December 31, 2020 Available For Sale Held to Maturity Amortized Fair Amortized Fair Cost Value Cost Value Due from one year to five years $ 4,935 $ 5,139 $ — $ — Due from five years to ten years 154,576 158,510 3,334 3,591 Due after ten years 129,072 140,177 18,936 21,138 288,583 303,826 22,270 24,729 Mortgage-backed securities and collateralized mortgage obligations 628,400 665,234 8,602 9,554 Asset-backed securities 52,335 55,269 — — $ 969,318 $ 1,024,329 $ 30,872 $ 34,283 December 31, 2019 December 31, 2019 Available For Sale Held to Maturity Amortized Fair Amortized Fair Cost Value Cost Value Due in one year or less $ — $ — $ — $ — Due from one year to five years 4,904 5,100 — — Due from five years to ten years 74,596 76,403 1,204 1,219 Due after ten years 72,453 76,148 21,331 22,666 151,953 157,651 22,535 23,885 Mortgage-backed securities and collateralized mortgage obligations 720,214 734,428 10,430 10,925 Asset-backed securities 69,964 72,286 — — $ 942,131 $ 964,365 $ 32,965 $ 34,810
Schedule of Proceeds From Sales of Investment Securities Available-For-Sale and Gross Gains and Losses	Proceeds from sales of debt securities available for sale and gross realized gains and losses for the years ended December 31, 2020, 2019 and 2018 were as follows: December 31, 2020 2019 2018 Proceeds from sales $ 113,771 $ 567,718 $ 40,822 Gross realized gains 2,879 532 335 Gross realized losses 256 2,384 399

Loans Held for Investment and_2

Loans Held for Investment and Allowance for Credit Losses (Tables)	12 Months Ended
	Dec. 31, 2020
Receivables [Abstract]
Summary of Loans	Loans held for investment in the accompanying consolidated balance sheets are summarized as follows: December 31, 2020 2019 Loans held for investment, carried at amortized cost: Real estate: Construction and land $ 693,030 $ 629,374 Farmland 13,844 16,939 1 - 4 family residential 524,344 549,811 Multi-family residential 424,962 320,041 OOCRE 717,472 706,782 NOOCRE 1,904,132 1,784,201 Commercial 1,559,546 1,712,838 MW 577,594 183,628 Consumer 13,000 17,457 6,427,924 5,921,071 Deferred loan (fees) costs, net (2,468) 134 Allowance for credit losses (105,084) (29,834) Loans held for investment carried at amortized cost, net $ 6,320,372 $ 5,891,371 Loans held for investment, carried at fair value: PPP Loans $ 358,042 $ — Total loans held for investment, net $ 6,678,414 $ 5,891,371 December 31, 2019 Carrying amount $ 126,125 Outstanding balance 157,417 Changes in the accretable yield for PCI loans for the years ended December 31, 2019 and 2018 are included in table below. Year Ended December 31, 2019 Year Ended December 31, 2018 Balance at beginning of period $ 18,747 $ 2,723 Additions 19,870 1,459 Reclassifications from nonaccretable 12,719 19,162 Accretion (13,112) (4,597) Balance at year-end $ 38,224 $ 18,747
Schedule of Recorded Investment in Loans Related to the Balance in the Allowance for Loan Losses on the Basis of Impairment Methodology	The activity in the ACL related to loans held for investment is as follows: December 31, 2020 Construction and Land Farmland Residential Multifamily OOCRE NOOCRE Commercial Consumer Total Balance at beginning of year $ 3,821 $ 62 $ 2,143 $ 1,200 $ 1,991 $ 8,126 $ 12,369 $ 122 $ 29,834 Impact of adopting ASC 326 non-PCD loans (707) 4 3,716 628 3,406 5,138 7,025 217 19,427 Impact of adoption ASC 326 PCD loans 645 — 908 — 7,682 2,037 8,335 103 19,710 Credit loss expense non-PCD loans 4,554 (10) 1,720 4,403 4,364 15,397 24,413 (178) 54,663 Credit loss expense PCD loans (545) — (378) — (5,303) 7,404 817 (18) 1,977 Charge-offs — — (18) — (2,421) (2,865) (15,507) (162) (20,973) Recoveries — — 57 — — — 102 287 446 Ending Balance $ 7,768 $ 56 $ 8,148 $ 6,231 $ 9,719 $ 35,237 $ 37,554 $ 371 $ 105,084 December 31, 2019 Construction and Land Farmland Residential Multifamily OOCRE NOOCRE Commercial Consumer Total Balance at beginning of year $ 2,186 $ 58 $ 1,614 $ 361 $ 1,393 $ 5,070 $ 8,554 $ 19 $ 19,255 Credit Loss Expense 1,635 4 619 839 598 3,056 14,487 276 21,514 Charge-offs — — (157) — — — (10,898) (265) (11,320) Recoveries — — 67 — — — 226 92 385 Ending Balance $ 3,821 $ 62 $ 2,143 $ 1,200 $ 1,991 $ 8,126 $ 12,369 $ 122 $ 29,834 December 31, 2018 Construction and Land Farmland Residential Multifamily OOCRE NOOCRE Commercial Consumer Total Balance at beginning of year $ 1,270 $ 45 $ 1,195 $ 278 $ 1,113 $ 3,297 $ 5,588 $ 22 $ 12,808 Credit Loss Expense 916 13 419 83 280 1,773 3,100 19 6,603 Charge-offs — — — — — — (175) (22) (197) Recoveries — — — — — — 41 — 41 Ending Balance $ 2,186 $ 58 $ 1,614 $ 361 $ 1,393 $ 5,070 $ 8,554 $ 19 $ 19,255 The following table presents loans individually and collectively evaluated for impairment, as well as PCI loans, and their respective allowance for credit loss allocations as of December 31, 2019, as determined in accordance with ASC 310 prior to the Company’s adoption of ASU 2016-13: December 31, 2019 Real Estate Construction, Residential Commercial Real Estate Commercial Consumer Total Loans individually evaluated for impairment $ 567 $ 156 $ 21,644 $ 5,188 $ 61 $ 27,616 Loans collectively evaluated for impairment 641,799 865,927 2,372,485 1,869,259 17,267 5,766,737 PCI loans 3,947 3,769 96,854 22,019 129 126,718 Total $ 646,313 $ 869,852 $ 2,490,983 $ 1,896,466 $ 17,457 $ 5,921,071 ACL Allocations Loans individually evaluated for impairment $ 128 $ 37 $ 395 $ 1,042 $ — $ 1,602 Loans collectively evaluated for impairment 3,755 3,306 9,702 10,754 122 27,639 PCI loans — — 20 573 — 593 Total $ 3,883 $ 3,343 $ 10,117 $ 12,369 $ 122 $ 29,834
Schedule of Securities Financing Transactions	The following table presents the amortized cost basis of collateral dependent loans, which are individually evaluated to determine expected credit losses, and the related ACL allocated to these loans as of December 31, 2020: Real Property (1) ACL Allocation Real estate: 1 - 4 family residential $ 199 $ 11 OOCRE — — NOOCRE 16,080 — Commercial 8,666 4,668 Consumer 143 50 Total $ 25,088 $ 4,729 (1) Loans reported exclude PCD loans that transitioned upon adoption of ASC 326 and accounted for on a pooled basis. Refer to Note 1 for further discussion.
Summary of Impaired Loans, Including Purchased Credit Impaired Loans and Troubled Debt Restructurings	The following table presents information on impaired loans as of December 31, 2019, as determined in accordance with ASC 310 prior to the Company’s adoption of ASU 2016-13: December 31, 2019 (1) Unpaid Recorded Recorded Total Related Average Real estate: Construction and land $ 567 $ — $ 567 $ 567 $ 128 $ 1,793 Farmland — — — — — — 1 - 4 family residential 156 — 156 156 37 158 Multi-family residential — — — — — — Commercial real estate 21,644 21,040 604 21,644 395 22,529 Commercial 5,188 2,011 3,177 5,188 1,042 8,546 Consumer 61 61 — 61 — 62 Total $ 27,616 $ 23,112 $ 4,504 $ 27,616 $ 1,602 $ 33,088 (1) Loans reported exclude PCI loans.
Schedule of Non-Accrual Loans, Excluding Purchased Credit Impaired Loans, Aggregated By Class of Loans	Nonaccrual loans, aggregated by class of loans, as of December 31, 2020 and 2019, were as follows: December 31, December 31, Nonaccrual Nonaccrual With No ACL Nonaccrual Nonaccrual With No ACL Real estate: Construction and land $ — $ — $ 567 $ — 1 - 4 family residential 3,308 3,199 1,581 1,581 OOCRE 6,266 5,645 3,029 2,778 NOOCRE 40,830 19,213 18,876 18,876 Commercial 29,318 1,015 5,672 2,747 Consumer 1,374 1,220 54 54 Total $ 81,096 $ 30,292 $ 29,779 $ 26,036
Schedule of Age Analysis of Past Due Loans, Excluding Purchased Credit Impaired Loans, Aggregated by Class of Loans	An age analysis of past due loans, aggregated by class of loans, as of December 31, 2020 and 2019 is as follows: December 31, 2020 30 to 59 Days 60 to 89 Days 90 Days or Greater Total Past Due Total Current PCD Total Total 90 Days Past Due and Still Accruing (1) Real estate: Construction and land $ — $ — $ — $ — $ 690,345 $ 2,685 $ 693,030 $ — Farmland — — — — 13,844 — 13,844 — 1 - 4 family residential 2,338 122 4,802 7,262 508,341 8,741 524,344 1,670 Multi-family residential — — — — 424,962 — 424,962 — OOCRE 2,278 2,143 2,814 7,235 672,246 37,991 717,472 1,280 NOOCRE 7,675 2,911 17,586 28,172 1,832,784 43,176 1,904,132 — Commercial 1,983 1,431 20,360 23,774 1,516,312 19,460 1,559,546 1,230 MW — — — — 577,594 — 577,594 — Consumer 75 77 1,338 1,490 11,308 202 13,000 24 $ 14,349 $ 6,684 $ 46,900 $ 67,933 $ 6,247,736 $ 112,255 $ 6,427,924 $ 4,204 (1) Loans 90 days past due and still accruing excludes $32,627 of pooled PCD loans as of December 31, 2020 that transitioned upon adoption of ASC 326. Refer to Note 1 for further discussion. December 31, 2019 30 to 59 Days 60 to 89 Days 90 Days or Greater Total Past Due Total Current PCI Total Total 90 Days Past Due and Still Accruing (1) Real estate: Construction and land $ — $ — $ — $ — $ 629,374 $ 3,947 $ 629,374 $ 800 Farmland — — — — 16,939 — 16,939 — 1 - 4 family residential 2,595 520 1,155 4,270 541,772 3,769 549,811 959 Multi-family residential — — — — 320,041 — 320,041 — Commercial real estate 12 3,834 868 4,714 2,389,415 96,854 2,490,983 511 Commercial 3,572 1,707 1,497 6,776 1,684,043 22,019 1,712,838 1,317 Consumer 30 2,641 140 2,811 14,646 129 17,457 73 $ 6,209 $ 8,702 $ 3,660 $ 18,571 $ 5,596,230 $ 126,718 $ 5,737,443 $ 3,660
Schedule of Terms of Certain Loans That Were Modified as Troubled Debt Restructurings	The terms of certain loans modified as TDRs during the year ended December 31, 2020 and December 31, 2019 are summarized in the following tables: During the year ended December 31, 2020 Adjusted Payment Structure Payment Deferrals Total Modifications Number of Loans OOCRE $ 5,326 $ — $ 5,326 5 NOOCRE — 19,454 19,454 4 Commercial 1,419 1,345 2,764 4 Total $ 6,745 $ 20,799 $ 27,544 13 During the year ended December 31, 2019 Adjusted Payment Structure Payment Deferrals Total Modifications Number of Loans Commercial $ 919 $ 115 $ 1,034 2
Summary of Internal Ratings of Loans, Including Purchased Credit Impaired Loans	The Company considers the guidance in ASC 310-20 when determining whether a modification, extension or renewal of a loan constitutes a current period origination. Generally, current period renewals of credit are reunderwritten at the point of renewal and considered current period originations for purposes of the table below. Based on the most recent analysis performed, the risk category of loans by class of loans based on year or origination is as follows: Term Loans Amortized Cost Basis by Origination Year 1 2020 2019 2018 2017 2016 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total As of December 31, 2020 Construction and land: Pass $ 155,358 $ 282,497 $ 179,372 $ 11,791 $ 9,938 $ 27,147 $ 21,066 $ — $ 687,169 Special mention — — 2,666 — — — — — 2,666 Substandard — — 510 — — — — — 510 PCD — — — — — 2,685 — — 2,685 Total construction and land $ 155,358 $ 282,497 $ 182,548 $ 11,791 $ 9,938 $ 29,832 $ 21,066 $ — $ 693,030 Farmland: Pass $ 867 $ 972 $ 3,367 $ 3,688 $ — $ 3,656 $ 1,294 $ — $ 13,844 Total farmland $ 867 $ 972 $ 3,367 $ 3,688 $ — $ 3,656 $ 1,294 $ — $ 13,844 1 - 4 family residential: Pass $ 120,580 $ 79,617 $ 91,890 $ 49,338 $ 31,936 $ 115,797 $ 19,065 $ 2,968 $ 511,191 Special mention — 1,077 154 760 — 687 — — 2,678 Substandard — — 142 668 — — 924 — 1,734 PCD — — — — — 8,741 — — 8,741 Total 1 - 4 family residential $ 120,580 $ 80,694 $ 92,186 $ 50,766 $ 31,936 $ 125,225 $ 19,989 $ 2,968 $ 524,344 Multi-family residential: Pass $ 107,332 $ 106,559 $ 139,721 $ 18,722 $ 32,672 $ 7,218 $ 58 $ — $ 412,282 Special mention — — 12,680 — — — — — 12,680 Total multi-family residential $ 107,332 $ 106,559 $ 152,401 $ 18,722 $ 32,672 $ 7,218 $ 58 $ — $ 424,962 OOCRE: Pass $ 113,741 $ 65,262 $ 75,940 $ 79,253 $ 79,202 $ 176,668 $ 5,532 $ — $ 595,598 Special mention — 948 22,725 3,701 12,860 4,326 — — 44,560 Substandard 370 — 10,579 3,830 11,315 6,822 201 6,206 39,323 PCD — — — — 7,951 30,040 — — 37,991 Total OOCRE $ 114,111 $ 66,210 $ 109,244 $ 86,784 $ 111,328 $ 217,856 $ 5,733 $ 6,206 $ 717,472 NOOCRE: Pass $ 361,246 $ 255,976 $ 445,079 $ 90,738 $ 174,893 $ 309,572 $ 13,413 $ — $ 1,650,917 Special mention 101 31,714 37,572 19,262 25,997 37,951 493 — 153,090 Substandard 1,226 0 9,850 0 4,562 4,108 — 23,098 14,105 — 56,949 PCD — — 18,744 — 6,652 17,780 — — 43,176 Total NOOCRE $ 362,573 $ 297,540 $ 505,957 $ 114,108 $ 207,542 $ 388,401 $ 28,011 $ — $ 1,904,132 Commercial: Pass $ 251,004 $ 158,158 $ 112,961 $ 50,734 $ 19,821 $ 41,856 $ 758,832 $ 13,400 $ 1,406,766 Special mention 1,306 2,539 8,224 10,033 1,201 2,165 26,922 3,670 56,060 Substandard 722 4,487 23,245 3,772 7,216 2,083 30,460 5,275 77,260 PCD — — — 3,382 4,196 11,882 — — 19,460 Total commercial $ 253,032 $ 165,184 $ 144,430 $ 67,921 $ 32,434 $ 57,986 $ 816,214 $ 22,345 $ 1,559,546 MW: Pass $ — $ — $ — $ — $ — $ — $ 577,594 $ — $ 577,594 Total MW $ — $ — $ — $ — $ — $ — $ 577,594 $ — $ 577,594 Consumer: Pass $ 2,489 $ 1,216 $ 1,038 $ 3,899 $ 887 $ 353 $ 1,475 $ — $ 11,357 Special mention — — — — 25 227 — — 252 Substandard — — — 60 — 66 1,063 — 1,189 PCD — — — 36 — 166 — — 202 Total consumer $ 2,489 $ 1,216 $ 1,038 $ 3,995 $ 912 $ 812 $ 2,538 $ — $ 13,000 Total Pass $ 1,112,617 $ 950,257 $ 1,049,368 $ 308,163 $ 349,349 $ 682,267 $ 1,398,329 $ 16,368 $ 5,866,718 Total Special Mention 1,407 36,278 84,021 33,756 40,083 45,356 27,415 3,670 271,986 Total Substandard 2,318 14,337 39,038 12,438 18,531 32,069 46,753 11,481 176,965 Total PCD — — 18,744 3,418 18,799 71,294 — — 112,255 Total $ 1,116,342 $ 1,000,872 $ 1,191,171 $ 357,775 $ 426,762 $ 830,986 $ 1,472,497 $ 31,519 $ 6,427,924 . 1 Term loans amortized cost basis by origination year excludes $2,468 of deferred loan fees, net. The following table summarizes the Company’s internal ratings of its loans, including PCI loans, as of December 31, 2019: December 31, 2019 Pass Special Substandard Doubtful PCI Total Real estate: Construction and land $ 618,773 $ 3,965 $ 2,689 $ — $ 3,947 $ 629,374 Farmland 16,939 — — — — 16,939 1 - 4 family residential 541,787 795 3,460 — 3,769 549,811 Multi-family residential 320,041 — — — — 320,041 Commercial real estate 2,332,357 23,494 38,278 — 96,854 2,490,983 Commercial 1,610,150 51,999 28,670 — 22,019 1,712,838 MW 183,628 — — — — 183,628 Consumer 17,106 40 182 — 129 17,457 Total $ 5,640,781 $ 80,293 $ 73,279 $ — $ 126,718 $ 5,921,071
Schedule of Summary of Changes in Servicing Assets	A summary of the changes in the related servicing assets are as follows: Year Ended December 31, 2020 2019 Balance at beginning of year $ 3,113 $ 1,304 Servicing assets acquired through acquisition — 2,382 Increase from loan sales 1,121 1,253 Servicing asset impairment, net of recoveries (368) (188) Amortization charged as a reduction to income (503) (1,638) Balance at year-end $ 3,363 $ 3,113

Bank Premises and Equipment (Ta

Bank Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Schedule of Bank Premises and Equipment	Bank premises and equipment in the accompanying consolidated balance sheets are summarized as follows: December 31, 2020 2019 Building and improvements $ 61,035 $ 60,959 Site improvements 3,303 2,633 Tenant improvements 779 744 Leasehold improvements 5,923 5,542 Land 44,078 45,878 Furniture, fixtures and equipment 17,751 16,073 Construction in Progress 630 608 133,499 132,437 Less accumulated depreciation and amortization 18,436 13,901 $ 115,063 $ 118,536

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Summary of Lease Costs	The table below summarizes the Company’s net lease cost: For the Year Ended December 31, 2020 2019 Operating lease cost $ 4,131 $ 4,999 Variable lease cost 810 988 Net lease cost $ 4,941 $ 5,987 The table below summarizes other information related to the Company’s operating leases: For the Year Ended December 31, 2020 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 3,994 $ 4,325 Weighted-average remaining lease term - operating leases, in years 3.3 years 4.4 years Weighted-average discount rate - operating leases 1.56 % 1.59 %
Summary of Remaining Lease Liabilities	A maturity analysis of operating lease liabilities and reconciliation of the undiscounted cash flows to the total operating lease liability is as follows: December 31, 2020 Lease payments due: Within one year $ 3,637 After one but within two years 3,323 After two but within three years 3,246 After three but within four years 2,808 After four but within five years 2,058 After five years 1,325 Total undiscounted cash flows 16,397 Less: Discount on cash flows (796) Total lease liability $ 15,601

Intangible Assets (Tables)

Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Intangible Assets	Intangible assets are initially recognized based on a valuation performed as of the acquisition date and are amortized on a straight-line basis over their estimated useful lives of the respective intangible assets as follows: Core deposit intangible 7 - 10 years In-place lease intangible Lease term Intangible assets in the accompanying consolidated balance sheets are summarized as follows: December 31, 2020 Remaining Weighted Gross Net Amortization Intangible Valuation Accumulated Intangible Period Asset Allowance Amortization Asset Core deposit intangibles 6.0 years $ 81,769 $ — $ 24,011 $ 57,758 Servicing asset 7.4 years 6,847 556 2,928 3,363 Intangible lease assets 1.4 years 4,779 — 4,167 612 $ 93,395 $ 556 $ 31,106 $ 61,733 December 31, 2019 Remaining Weighted Gross Net Amortization Intangible Valuation Accumulated Intangible Period Asset Allowance Amortization Asset Core deposit intangibles 7.0 years $ 81,769 $ — $ 14,206 $ 67,563 Servicing asset 6.7 years 5,726 188 2,425 3,113 Intangible lease assets 1.4 years 4,765 — 3,178 1,587 $ 92,260 $ 188 $ 19,809 $ 72,263
Schedule of the Estimated Aggregate Future Amortization Expense for Intangible Assets	The estimated aggregate future amortization expense for intangible assets remaining as of December 31, 2020 was as follows: Year Amount 2021 $ 10,509 2022 10,439 2023 10,266 2024 10,238 2025 9,800 Thereafter 10,481 $ 61,733 As of December 31, 2020, the expected future minimum commitment payments under the Company’s qualified affordable housing investments for each of the following five years were: Year Ending December 31, Future Minimum Payments 2021 $ 132 2022 26 2023 26 2024 37 2025 51 Thereafter 90 Total $ 362

Goodwill (Tables)

Goodwill (Tables)	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Changes in the Carrying Amount of Goodwill	Changes in the carrying amount of goodwill in the accompanying consolidated balance sheets are summarized as follows: December 31, 2020 2019 Balance at beginning of year $ 370,840 $ 161,447 Green acquisition — 209,393 Balance at end of year $ 370,840 $ 370,840

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2020
Banking and Thrift [Abstract]
Schedule Summarized of the Deposits	Deposits in the accompanying consolidated balance sheets are summarized as follows: December 31, 2020 2019 Noninterest-bearing demand accounts $ 2,097,099 $ 1,556,500 Interest-bearing demand accounts 453,111 388,877 Savings accounts 106,820 86,079 Limited access money market accounts 2,398,525 2,180,016 Certificates of deposit, greater than $100 1,179,853 1,234,324 Certificates of deposit, less than $100 277,438 448,554 Total $ 6,512,846 $ 5,894,350
Scheduled Maturities of Certificate of Deposits	As of December 31, 2020, the scheduled maturities of certificates of deposit were as follows: Year Amount 2021 $ 1,194,780 2022 217,932 2023 24,035 2024 12,365 2025 8,179 Total $ 1,457,291

Advances from the FHLB (Tables)

Advances from the FHLB (Tables)	12 Months Ended
	Dec. 31, 2020
Banking and Thrift [Abstract]
Schedule of Contractual Maturities of FHLB Advances	Contractual maturities of FHLB advances at December 31, 2020 were as follows: 2022 $ 27,718 2025 and thereafter 750,000 Total $ 777,718

Borrowed Funds (Tables)

Borrowed Funds (Tables)	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Schedule of Junior Subordinated Debentures and Subordinated Notes	Borrowed funds in the accompanying consolidated balance sheets are as follows: December 31, 2020 2019 Junior subordinated debentures (1) $ 30,244 $ 30,023 Subordinated notes (2) 232,534 115,548 $ 262,778 $ 145,571 (1) Junior subordinated debentures are net of a discount of $3,624 and 3,845 as of December 31, 2020 and 2019, respectively. (2) Subordinated notes include a premium of $1,038 and $2,081 and debt issuance costs of $3,504 and $1,533 as of December 31, 2020 and 2019, respectively.

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Components of Provision for Income Taxes	The provision for income taxes is summarized as follows: Year Ended December 31, 2020 2019 2018 Income tax expense (benefit): Current $ 23,587 $ 16,068 $ 8,189 Deferred (9,384) 9,053 2,707 $ 14,203 $ 25,121 $ 10,896
Schedule of Effective Income Tax Rate Reconciliation	The table below reconciles income tax expense for the years ended December 31, 2020, 2019 and 2018 computed by applying the applicable U.S. federal statutory income tax rate, reconciled to the tax expense computed at the effective income tax rate: Year Ended December 31, 2020 2019 2018 Federal incomes tax expense rate at 21% for December 31, 2020, 2019 and 2018 $ 18,498 $ 24,330 $ 10,550 Bank-owned life insurance (407) (422) (124) Non-deductible transaction costs — 308 727 Tax exempt interest income (452) (391) (169) Impact of IRS Settlement — (1,556) — Deferred tax true up (1,181) — — Deferred tax asset re-measurement due to the Tax Act — — 34 162(m) Disallowance 65 1,512 — State Taxes 902 760 110 Excess benefit on share-based compensation (1,435) 205 (248) Net Operating Loss ("NOL") Carryback (1,799) — — Other 12 375 16 Total income tax expense $ 14,203 $ 25,121 $ 10,896 Effective tax rate 16.1 % 21.7 % 21.7 %
Schedule of Significant Components of the Deferred Tax Assets and Liabilities	Significant components of the Company’s deferred tax assets and liabilities are as follows: December 31, 2020 2019 Deferred tax assets: Allowance for credit losses $ 24,324 $ 6,232 Equity compensation 3,390 3,703 Purchase premium/loan discounts 2,945 9,347 Lease liability 3,276 2,960 Purchase securities 2,905 2,945 Other 3,901 3,930 Total deferred tax assets 40,741 29,117 Deferred tax liabilities: Intangibles 11,911 13,527 Bank premises and equipment 4,036 4,811 ROU asset 3,124 2,773 Net unrealized gain on available for sale debt securities and derivative instruments 14,944 4,669 Other 2,063 1,904 Total deferred tax liabilities 36,078 27,684 Net deferred tax asset $ 4,663 $ 1,433
Schedule of Unrecognized Tax Benefits Roll Forward	The following table provides a rollforward of the Company's gross federal and state unrecognized tax benefits for the years ending December 31, 2020, 2019 and 2018. During the year ending December 31, 2020, the Company recorded an uncertain tax position liability for state nexus tax exposure of $549 in accounts payable and other liabilities in the accompanying consolidated balance sheets. During the year ending December 31, 2019, the Company recorded an uncertain tax position associated with the acquisition of Green and subsequently reached a settlement with the taxing authority. December 31 2020 2019 2018 Unrecognized tax benefits at the beginning of the year: $ — $ — $ — Gross increases, related to tax positions taken in a prior period 281 2,155 — Gross increases, related to tax positions taken in current period 268 — — Settlement with taxing authority — (2,155) — Unrecognized tax benefits at the end of the year $ 549 $ — $ —

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Schedule of cost, amortization, depreciation, and carrying amount	The estimated aggregate future amortization expense for intangible assets remaining as of December 31, 2020 was as follows: Year Amount 2021 $ 10,509 2022 10,439 2023 10,266 2024 10,238 2025 9,800 Thereafter 10,481 $ 61,733 As of December 31, 2020, the expected future minimum commitment payments under the Company’s qualified affordable housing investments for each of the following five years were: Year Ending December 31, Future Minimum Payments 2021 $ 132 2022 26 2023 26 2024 37 2025 51 Thereafter 90 Total $ 362
Schedule of other commitments	As of December 31, 2020, the expected future minimum commitment payments under the Company’s qualified affordable housing investments for each of the following five years were: Year Ending December 31, Future Minimum Payments 2021 $ 132 2022 26 2023 26 2024 37 2025 51 Thereafter 90 Total $ 362

Fair Value Disclosures (Tables)

Fair Value Disclosures (Tables)	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Schedule of Assets Measured at Fair Value on a Recurring Basis	The following table summarizes assets measured at fair value on a recurring basis as of December 31, 2020 and 2019, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value: December 31, 2020 Level 1 Level 2 Level 3 Total Inputs Inputs Inputs Fair Value Financial Assets: Available for sale debt securities $ — $ 1,024,329 $ — $ 1,024,329 Equity securities with a readily determinable fair value 11,363 — — 11,363 PPP Loans — 358,042 — 358,042 Loans held for sale (1) — 6,681 — 6,681 Interest rate swap designated as hedging instruments — 17,543 — 17,543 Customer interest rate swaps not designated as hedging instruments — 10,937 — 10,937 Correspondent interest rate caps and collars not designated as hedging instruments — 1 — 1 Financial Liabilities: Interest rate swap designated as hedging instruments $ — $ 2,255 $ — $ 2,255 Correspondent interest rate caps and collars not designated as hedging instruments — 11,666 — 11,666 Customer interest rate swaps not designated as hedging instruments — 1 — 1 (1) Represents loans held for sale elected to be carried at fair value upon origination or acquisition. December 31, 2019 Level 1 Level 2 Level 3 Total Inputs Inputs Inputs Fair Value Financial Assets: Available for sale debt securities $ — $ 964,365 $ — $ 964,365 Equity securities with a readily determinable fair value 11,122 — — 11,122 Loans held for sale (1) — 10,068 — 10,068 Correspondent interest rate swaps — 105 — 105 Customer interest rate swaps — 4,393 — 4,393 Correspondent interest rate caps and collars — 11 — 11 Commercial loan interest rate floor — 3,353 — 3,353 Financial Liabilities: Correspondent interest rate swaps $ — $ 4,736 $ — $ 4,736 Customer interest rate swaps — 84 — 84 Customer interest rate caps and collars — 11 — 11 (1) Represents loans held for sale elected to be carried at fair value upon origination or acquisition.
Schedule of Assets Measured at Fair Value on a Non-recurring Basis	The following table summarizes assets measured at fair value on a non-recurring basis as of December 31, 2020 and 2019, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value: Fair Value Measurements Using Level 1 Level 2 Level 3 Total Inputs Inputs Inputs Fair Value As of December 31, 2020 Assets: Collateral dependent loans with an ACL $ — $ — $ 2,386 $ 2,386 Servicing assets with a valuation allowance — — 2,975 2,975 As of December 31, 2019 Assets: Impaired loans $ — $ — $ 4,504 $ 4,504 Other real estate owned — — 5,995 5,995
Schedule of Estimated Fair Values and Carrying Values of All Financial Instruments	The estimated fair values and carrying values of all financial instruments not measured at fair value on a recurring or non-recurring basis under current authoritative guidance as of December 31, 2020 and 2019 were as follows: Fair Value Carrying Amount Level 1 Level 2 Level 3 December 31, 2020 Financial assets: Cash and cash equivalents $ 230,825 $ — $ 230,825 $ — Held-to-maturity debt securities 30,872 — 34,283 — Loans held for sale (1) 14,733 — 14,733 — Loans held for investment (2) 6,317,986 — — 6,335,402 Accrued interest receivable 23,798 — 23,798 — Bank-owned life insurance 82,855 — 82,855 — Servicing asset 388 — 486 — Equity securities without a readily determinable fair value 3,575 N/A N/A N/A FHLB and FRB stock 71,236 N/A N/A N/A Financial liabilities: Deposits $ 6,512,846 $ — $ 6,608,849 $ — Advances from FHLB 777,718 — 782,321 — Accrued interest payable 2,665 — 2,665 — Subordinated debentures and subordinated notes 262,778 — 262,778 — Securities sold under agreement to repurchase 2,225 — 2,199 — December 31, 2019 Financial assets: Cash and cash equivalents $ 251,550 $ — $ 251,550 $ — Held-to-maturity debt securities 32,965 — 34,810 — Loans held for sale (1) 4,012 — 4,012 — Loans held for investment (2) 5,921,205 — — 5,899,945 Accrued interest receivable 19,508 — 19,508 — Bank-owned life insurance 80,915 — 80,915 — Servicing asset 3,113 — 3,113 — Equity securities without readily determinable fair value 3,575 N/A N/A N/A FHLB and FRB stock 68,348 N/A N/A N/A Financial liabilities: Deposits $ 5,894,350 $ — $ 5,692,217 $ — Advances from FHLB 677,870 — 708,692 — Accrued interest payable 5,893 — 5,893 — Subordinated debentures and subordinated notes 145,571 — 145,571 — Securities sold under agreement to repurchase 2,353 — 2,353 — (1) Loans held for sale primarily represent mortgage loans held for sale that are carried at lower of cost or market. (2) Loans held for investment includes MW and is carried at amortized cost.

Off-Balance Sheet Loan Commit_2

Off-Balance Sheet Loan Commitments (Tables)	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Schedule of the Approximate Amounts of Financial Instruments with Off-balance Sheet Risk	The following table sets forth the approximate amounts of these financial instruments as of December 31, 2020 and 2019: December 31, 2020 2019 Commitments to extend credit $ 2,743,571 $ 1,602,891 Mortgage warehouse commitments 354,603 347,459 Standby and commercial letters of credit 44,427 27,196 $ 3,142,601 $ 1,977,546
Schedule of Allowance For Unfunded Commitments	The table below presents the activity in the allowance for unfunded commitment credit losses related to those financial instruments discussed above. This allowance is recorded in accounts payable and other liabilities on the Consolidated Balance Sheets: December 31, 2020 2019 Beginning balance for allowance for credit losses on unfunded commitments $ 878 $ 878 Impact of CECL adoption 840 — Provision for credit losses on unfunded commitments 9,029 — Ending balance of allowance for credit losses on unfunded commitments $ 10,747 $ 878

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Balance Sheet	The notional amounts and estimated fair values as of December 31, 2020 and December 31, 2019 were as shown in the table below. December 31, 2020 December 31, 2019 Estimated Fair Value Estimated Fair Value Notional Amount Asset Derivative Liability Derivative Notional Amount Asset Derivative Liability Derivative Derivatives designated as hedging instruments (cash flow hedges): Interest rate swap on borrowing advances $ 500,000 $ 17,543 $ — $ — $ — $ — Interest rate swap on money market deposit account payments 250,000 — 2,255 — — — Commercial loan interest rate floor — — — 275,000 3,353 — Total derivatives designated as hedging instruments $ 750,000 $ 17,543 $ 2,255 275,000 3,353 — Derivatives not designated as hedging instruments: Financial institution counterparty: Interest rate swaps $ 303,918 $ — $ 11,666 $ 222,394 $ 105 $ 4,736 Interest rate caps and collars 41,916 1 — 90,093 11 — Commercial customer counterparty: Interest rate swaps 303,918 10,937 — 222,394 4,393 84 Interest rate caps and collars 41,916 — 1 90,093 — 11 Total derivatives not designated as hedging instruments $ 691,668 $ 10,938 $ 11,667 $ 624,974 $ 4,509 $ 4,831 Offsetting derivative assets/liabilities 1 1 (2,895) (2,895) Total derivatives $ 1,441,668 $ 28,482 $ 13,923 $ 899,974 $ 4,967 $ 1,936
Derivative Instruments, Gain (Loss)	Pre-tax gain (loss) included in the Consolidated Statements of Income and related to derivative instruments for the years ended December 31, 2020 and 2019 was as follows: For the Year Ended December 31, 2020 For the Year Ended December 31, 2019 Net gain (loss) recognized in other comprehensive income on derivative Gain (loss) reclassified from accumulated other comprehensive income into income Location of gain (loss) reclassified from accumulated other comprehensive income into income Net gain (loss) recognized in other comprehensive income on derivative Gain (loss) reclassified from accumulated other comprehensive income into income Location of gain (loss) reclassified from accumulated other comprehensive income into income Derivatives designated as hedging instruments (cash flow hedges): Interest rate swap on borrowing advances $ 13,859 $ — Interest Expense $ — $ — Interest Expense Interest rate swap on money market deposit account payments (1,781) (605) Interest Expense — — Interest Expense Commercial loan interest rate floors (813) 1,937 Interest Income 1,497 (808) Interest Income Total $ 11,265 $ 1,332 $ 1,497 $ (808) Net Gain recognized in other noninterest income Loss recognized in other noninterest income Derivatives not designated as hedging instruments: Interest rate swaps, caps and collars $ 2,481 $ 550
Schedule of Derivative Instruments Outstanding	The following is a summary of the interest rate swaps outstanding as of December 31, 2020 and December 31, 2019. December 31, 2020 Notional Amount Fixed Rate Floating Rate Maturity Fair Value Non-hedging derivative instruments: Customer interest rate derivative: Interest rate swaps - receive fixed/pay floating $ 303,918 3.14% - 8.470% LIBOR 1 month + —% - 5.00% PRIME H15 - 25 Wtd. Avg. 4.1 years $ (11,666) Interest rate caps and collars $ 41,916 2.500% / 3.000% LIBOR 1 month + —% Wtd. Avg. 1.6 years $ 1 Correspondent interest rate derivative: Interest rate swaps - pay fixed/receive floating $ 303,918 3.14% - 8.470% LIBOR 1 month + —% - 5.00% PRIME H15 - 25 Wtd. Avg. 4.1 years $ 10,937 Interest rate caps and collars $ 41,916 3.000% / 5.000% LIBOR 1 month + —% - 2.5% Wtd. Avg. 1.6 years $ (1) December 31, 2019 Notional Amount Fixed Rate Floating Rate Maturity Fair Value Non-hedging derivative instruments: Customer interest rate derivative: Interest rate swaps - receive fixed/pay floating $ 222,394 2.944% - 8.470% LIBOR 1 month + —% - 5.00% PRIME H15 - 25 Wtd. Avg. 3.3 years $ (4,632) Interest rate caps and collars $ 90,093 2.430% / 5.800% LIBOR 1 month + —% - 3.75% Wtd. Avg. 1.5 years $ 11 Correspondent interest rate derivative: Interest rate swaps - pay fixed/receive floating $ 222,394 2.944% - 8.470% LIBOR 1 month + —% - 5.00% PRIME H15 - 25 Wtd. Avg. 3.3 years $ 4,309 Interest rate caps and collars $ 90,093 3.000% / 5.800% LIBOR 1 month + — - 3.75% Wtd. Avg. 1.5 years $ (11)

Stock and Incentive Plans (Tabl

Stock and Incentive Plans (Tables)	12 Months Ended
	Dec. 31, 2020
Share-based Payment Arrangement [Abstract]
Summary of option activity	A summary of the status of options granted under the 2010 Incentive Plan at December 31, 2020, 2019 and 2018 and changes during the years then ended is presented below: 2010 Incentive Plan Nonperformance-based stock options Shares Weighted Average Exercise Weighted Aggregate Intrinsic Value Outstanding at December 31, 2017 305,000 $ 10.16 3.59 years Exercised (30,000) 10.61 Outstanding at December 31, 2018 275,000 $ 10.12 2.39 years Exercised (17,500) 10.24 Outstanding at December 31, 2019 257,500 $ 10.28 1.37 years Exercised (237,500) 10.12 Outstanding and exercisable at December 31, 2020 20,000 $ 10.09 1.06 years $ 374 2019 Amended Plan Nonperformance-based stock options Equity Awards Liability Awards Shares Weighted Average Exercise Weighted Aggregate Intrinsic Value Shares Weighted Average Exercise Weighted Aggregate Intrinsic Value Outstanding at December 31, 2017 330,723 $ 22.71 8.86 years — — — Granted 137,576 28.04 — — Forfeited (4,083) 27.59 — — Exercised (14,696) 15.29 — — Outstanding at December 31, 2018 449,520 $ 24.47 8.24 years — $ — — Granted 200,561 22.72 253,633 21.38 Conversion to equity awards 253,633 21.38 (253,633) 21.38 Forfeited (41,336) 25.51 — — Exercised (12,610) 15.42 — — Outstanding at December 31, 2019 849,768 $ 23.61 8.24 years — — — Granted 185,025 26.73 — — Forfeited (25,053) 27.37 — — Exercised (33,939) 19.10 — — Outstanding at December 31, 2020 975,801 $ 24.26 7.45 years $ 2,422 — — — $ — Options exercisable at December 31, 2020 491,704 $ 24.25 6.40 years $ 1,199 — — — $ — Weighted average fair value of options granted during the period $ 6.37 $ — A summary of the status of the Company’s stock options under the Veritex (Green) 2014 Plan as of December 31, 2020 and 2019 changes during the years then ended is as follows: Veritex (Green) 2014 Plan Non-performance Based Stock Options Shares Weighted Weighted Aggregate Intrinsic Value Outstanding at January 1, 2019 — $ — Converted in acquisition of Green 304,778 15.41 Granted 211,793 21.38 Forfeited (12,673) 13.17 Exercised (116,929) 13.60 Outstanding at December 31, 2019 386,969 19.30 Granted 31,075 29.13 Forfeited (30,711) 20.92 Exercised (35,333) 19.42 Outstanding at December 31, 2020 352,000 $ 19.99 6.97 years $2,124 Options exercisable at December 31, 2020 209,844 $ 17.89 6.11 years $1,642 Weighted average fair value of options granted during the period $ 9.56 A summary of the status of the Company’s non-performance-based restricted stock units under the Green 2010 Plan as of December 31, 2020 and 2019 and changes during the years then ended, is as follows: Green 2010 Plan Non-performance Based Stock Options Shares Weighted Weighted Aggregate Intrinsic Value Outstanding at January 1, 2019 — $ — Converted in acquisition of Green 768,628 10.73 Forfeited (6,241) 13.69 Exercised (190,652) 10.93 Outstanding at December 31, 2019 571,735 10.64 Exercised (440,652) 10.35 Outstanding and exercisable at December 31, 2020 131,083 $ 11.60 4.90 years $1,843 A summary of the status of the Company’s non-performance-based restricted stock units under the Green 2006 Plan as of December 31, 2020 and 2019 and changes during the years then ended, is as follows: Green 2006 Plan Non-performance Based Stock Options Shares Weighted Weighted Aggregate Intrinsic Value Outstanding at January 1, 2019 — $ — Converted in acquisition of Green 11,850 10.45 Exercised (11,850) 10.45 Outstanding at December 31, 2019 and 2020 — —
Summary of status of the Company's restricted shares or restricted stock units	A summary of the status of the restricted stock units under the 2010 Incentive Plan as of December 31, 2020, 2019, and 2018 and changes during the years is presented below: 2010 Incentive Plan Nonperformance-based restricted stock units Shares Weighted Average Exercise Outstanding at December 31, 2017 24,250 $ 13.19 Forfeited (500) 10.85 Vested into shares (23,750) 12.14 Outstanding at December 31, 2018 — $ — Outstanding at December 31, 2019 — — Outstanding at December 31, 2020 — $ — 2019 Amended Plan Nonperformance-based restricted stock units Equity Awards Liability Awards Units Weighted Units Weighted Outstanding at December 31, 2017 150,722 $ 13.29 — $ — Granted 60,650 29.27 — — Vested into shares (73,988) 24.44 — — Forfeited (3,929) 26.29 — — Outstanding at December 31, 2018 133,455 $ 19.67 — $ — Granted 127,459 22.44 165,739 21.38 Conversion to equity awards 165,739 21.38 (165,739) 21.38 Vested into shares (250,965) 22.29 — — Outstanding at December 31, 2019 175,688 $ 21.65 — $ — Granted 360,400 20.38 — — Vested into shares (93,377) 24.73 — — Forfeited (1,579) 29.13 — — Outstanding at December 31, 2020 441,132 $ 20.39 — $ — A summary of the status of the Company’s performance based restricted stock units under the 2019 Amended Plan as of December 31, 2020, 2019 and 2018, and changes during the years then ended is as follows: 2019 Amended Plan Performance-based restricted stock units Equity Awards Liability Awards Units Weighted Units Weighted Outstanding at December 31, 2017 53,594 $ 17.68 — $ — Granted 40,269 27.59 — — Vested into shares (28,109) 18.69 — — Forfeited (1,766) 27.59 — — Outstanding at December 31, 2018 63,988 $ 21.28 — $ — Granted 38,746 22.53 32,249 21.38 Conversion to equity awards 32,249 21.38 (32,249) 21.38 Vested into shares (51,284) 25.31 — — Forfeited (19,972) 21.38 — — Outstanding at December 31, 2019 63,727 $ 22.76 — $ — Granted 39,398 25.94 — — Vested into shares (1,841) 19.69 — — Forfeited (1,089) 19.69 — — Outstanding at December 31, 2020 100,195 $ 23.20 — $ — A summary of the status of the Company’s non-performance-based restricted stock units under the Veritex (Green) 2014 Plan as of December 31, 2020 and 2019 and changes during the years then ended, is as follows: Veritex (Green) 2014 Plan Non-performance Based Restricted Stock Units Units Weighted Average Grant Date Fair Value Outstanding at January 1, 2019 — $ — Granted 116,250 21.38 Outstanding at December 31, 2019 116,250 21.38 Granted 93,918 21.36 Vested into shares (38,744) 21.38 Forfeited (15,237) 23.62 Outstanding at December 31, 2020 156,187 $ 22.64 A summary of the status of the Company’s performance-based restricted stock units under the Veritex (Green) 2014 Plan as of December 31, 2020 and 2019 and changes during the years then ended, is as follows: Veritex (Green) 2014 Plan Performance Based Restricted Stock Units Units Weighted Average Grant Date Fair Value Outstanding at January 1, 2019 — $ — Granted 26,145 21.38 Forfeited (825) 21.38 Outstanding at December 31, 2019 25,320 $ 21.38 Granted 8,531 25.94 Forfeited (3,123) 19.69 Outstanding at December 31, 2020 30,728 $ 21.43
Schedule of employee stock purchase plan activity	A summary of the fair value of the Company’s stock options exercised and restricted stock units vested under the 2010 Incentive Plan as of December 31, 2020, 2019 and 2018 is presented below: Fair Value of Options Exercised or Restricted Stock Units Vested as of December 31, 2020 2019 2018 Nonperformance-based stock options exercised $ 6,579 $ 454 $ 803 Nonperformance-based restricted stock units vested — — 713 A summary of the fair value of the Company’s stock options exercised and restricted stock units vested under the 2019 Amended Plan as of December 31, 2020, 2019 and 2018 is presented below: Fair Value of Options Exercised or Restricted Stock Units Vested as of December 31, 2020 2019 2018 Nonperformance-based stock options exercised $ 954 334 383 Nonperformance-based restricted stock units vested 2,529 6,113 2,128 Performance-based restricted stock units vested 36 1,089 745 Fair Value of Options Exercised or Restricted Stock Units Vested in the year ended December 31, 2020 2019 Non-performance-based stock options exercised $ 1,021 $ 3,054 Non-performance-based restricted stock units vested 828 — A summary of the fair value of the Company’s stock options exercised under the Green 2010 Plan during the year ended December 31, 2020 and 2019 is presented below: Fair Value of Options Exercised in the year ended December 31, 2020 2019 Non-performance-based stock options exercised $ 12,231 $ 5,554 A summary of the fair value of the Company’s stock options exercised under the Green 2006 Plan during the year ended December 31, 2020 and 2019 is presented below: Fair Value of Options Exercised in the year ended December 31, 2020 2019 Non-performance-based stock options exercised $ — $ 345
Schedule of Vesting Percentages	Vesting % Below the 24.9 th percentile of Peer Group TSR — % Within the 25 th to 49.9 th percentile of Peer Group TSR 50 % Within the 50 th to 74.9 th percentile of Peer Group TSR 100 % At or above the 75 th percentile of Peer Group TSR 150 %
Schedule of assumptions used to measure fair value of each option award estimated on grant date using Black-Scholes option-pricing model	The fair value of each option award is estimated on the grant date using the Black-Scholes option-pricing model with the following assumptions used for the grants: For the Year Ended December 31, 2020 2019 2018 Dividend yield 2.33% to 5.14% 1.73% to 2.01% —% Expected life 5.00 to 6.51 years 4.52 to 7.51 years 5.00 to 7.50 years Expected volatility 27.49% to 42.37% 28.85% to 29.65% 27.87% to 37.55% Risk-free interest rate 0.36% to 1.76% 1.53% to 2.51% 1.06% to 2.94%

Capital Requirements and Rest_2

Capital Requirements and Restrictions on Retained Earnings (Tables)	12 Months Ended
	Dec. 31, 2020
Banking and Thrift [Abstract]
Schedule of Comparison of the Company's and Bank's Actual Capital Amounts and Ratios to Required Capital Amounts and Ratios	Actual For Capital To Be Well Amount Ratio Amount Ratio Amount Ratio As of December 31, 2020 Total capital (to risk-weighted assets) Company $ 1,099,031 13.57 % $ 647,918 8.0 % n/a n/a Bank 968,481 11.96 647,813 8.0 $ 809,767 10.0 % Tier 1 capital (to risk-weighted assets) Company 782,487 9.66 486,017 6.0 n/a n/a Bank 884,471 10.92 485,973 6.0 647,964 8.0 Common equity tier 1 (to risk-weighted assets) Company 753,261 9.30 364,481 4.5 n/a n/a Bank 884,471 10.92 364,480 4.5 526,471 6.5 Tier 1 capital (to average assets) Company 782,487 9.43 331,914 4.0 n/a n/a Bank 884,471 10.66 331,884 4.0 414,855 5.0 As of December 31, 2019 Total capital (to risk-weighted assets) Company $ 917,939 13.10 % $ 560,573 8.0 % n/a n/a Bank 870,838 12.44 560,024 8.0 $ 700,031 10.0 % Tier 1 capital (to risk-weighted assets) Company 771,679 11.02 420,152 6.0 n/a n/a Bank 840,126 12.00 420,063 6.0 560,084 8.0 Common equity tier 1 (to risk-weighted assets) Company 742,675 10.60 315,287 4.5 n/a n/a Bank 840,126 12.00 315,047 4.5 455,068 6.5 Tier 1 capital (to average assets) Company 771,679 10.17 303,512 4.0 n/a n/a Bank 840,126 11.07 303,569 4.0 379,461 5.0

Parent Company Only Financial_2

Parent Company Only Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2020
Condensed Financial Information Disclosure [Abstract]
Balance Sheets	Balance Sheet December 31, 2020 2019 Assets Cash and cash equivalents $ 129,969 $ 45,563 Investment in subsidiaries 1,335,603 1,289,273 Other assets 4,638 2,780 Total assets $ 1,470,210 $ 1,337,616 Liabilities and Stockholders’ Equity Other liabilities $ 4,056 $ 1,248 Other borrowings 262,778 145,571 Total liabilities $ 266,834 $ 146,819 Stockholders’ equity Common stock $ 555 $ 511 Additional paid-in capital 1,126,437 1,117,879 Retained earnings 172,232 147,911 Accumulated other comprehensive income 56,225 19,061 Treasury stock (152,073) (94,565) Total stockholders’ equity 1,203,376 1,190,797 Total liabilities and stockholders’ equity $ 1,470,210 $ 1,337,616
Statements of Income	Statements of Income Year Ended December 31, 2020 2019 2018 Cash dividends from subsidiary $ 65,000 $ 56,750 $ — Excess of earnings over dividend from subsidiary 16,693 43,199 44,850 Other 53 50 20 81,746 99,999 44,870 Interest on borrowings 8,529 4,672 974 Salaries and employee benefits 612 790 853 Merger and acquisition expense — 4,942 3,886 Other 798 797 529 9,939 11,201 6,242 Earnings before income tax benefit 71,807 88,798 38,628 Income tax benefit (2,076) (1,941) (713) Net income $ 73,883 $ 90,739 $ 39,341
Statements of Cash Flows	Statements of Cash Flows Year Ended December 31, 2020 2019 2018 Cash flows from operating activities: Net income $ 73,883 $ 90,739 $ 39,341 Adjustments to reconcile net income to net cash provided by (used in) operating activities: Amortization of debt discount and debt issuance costs, net 1,263 2,353 2 Equity in undistributed net income of Bank (16,693) (43,199) (44,850) (Increase) decrease in other assets (1,853) (1,861) 2,226 Increase (decrease) in other liabilities 726 (5,024) (2,042) Net cash provided (used in) by operating activities 57,326 43,008 (5,323) Cash flows from investing activities: Net cash received in acquisition — 5,818 — Net cash used in investing activities — 5,818 — Cash flows from financing activities: Proceeds from issuance of subordinated notes, net of debt issuance costs paid 123,026 75,000 — Net proceeds from sale of common stock in public offering — — 2 Proceeds from exercise of stock warrants 109 — — Redemption of subordinated debt (5,000) — — Proceeds from exercise of employee stock options 4,301 3,938 454 Payments to tax authorities for stock-based compensation (3,829) (1,346) (593) Proceeds from payments on ESOP loan — — 109 Offering costs paid in connection with acquisition — — (899) Repurchase of treasury stock (57,470) (94,533) — Dividends paid (34,057) (26,796) — Net cash provided (used in) by financing activities 27,080 (43,737) (927) Net increase (decrease) in cash and cash equivalents 84,406 5,089 (6,250) Cash and cash equivalents at beginning of year 45,563 40,474 46,724 Cash and cash equivalents at end of year $ 129,969 $ 45,563 $ 40,474

Summary of Quarterly Financia_2

Summary of Quarterly Financial Statements (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Summary of Quarterly Financial Information	The following quarterly information is unaudited. However, in the opinion of management, the information reflects all adjustments, necessary for the fair presentation of the results of operations, for the periods presented. 2020 Fourth Quarter Third Quarter Second Quarter First Quarter Interest income $ 78,100 $ 77,429 $ 79,342 $ 86,979 Interest expense 11,334 11,559 13,585 19,574 Net interest income 66,766 65,870 65,757 67,405 Provision for credit losses — 8,692 16,172 31,776 Provision for credit losses for unfunded commitments 902 1,447 2,799 3,881 Noninterest income 9,012 9,795 21,290 7,247 Noninterest expense 47,373 36,408 40,061 35,545 Income tax expense (benefit) 4,702 6,198 3,987 (684) Net income $ 22,801 $ 22,920 $ 24,028 $ 4,134 Earnings per share: Basic $ 0.46 $ 0.46 $ 0.48 $ 0.08 Diluted 0.46 0.46 0.48 0.08 2019 Fourth Quarter Third Quarter Second Quarter First Quarter Interest Income $ 91,742 $ 95,643 $ 96,177 $ 95,224 Interest Expense 21,878 24,769 24,735 22,307 Net interest income 69,864 70,874 71,442 72,917 Provision for credit losses 3,493 9,674 3,335 5,012 Noninterest income 7,132 8,430 6,034 8,484 Noninterest expense 36,284 34,630 39,896 66,993 Income tax expense 8,168 7,595 7,369 1,989 Net income $ 29,051 $ 27,405 $ 26,876 $ 7,407 Earnings per share: Basic $ 0.56 $ 0.52 $ 0.50 $ 0.14 Diluted 0.56 0.51 0.49 0.13

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Nature of Organization (Details)	12 Months Ended
	Dec. 31, 2020branch
Product Information [Line Items]
Number of mortgage offices	1
Dallas-Fort Worth
Product Information [Line Items]
Number of branches	25
Houston
Product Information [Line Items]
Number of branches	12
Louisville, Kentucky
Product Information [Line Items]
Number of branches	1

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Segment Reporting (Details)	12 Months Ended
	Dec. 31, 2020segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of reportable segments	1

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Reclassifications (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Reclassification of accrued interest payable to accounts payable and other liabilities	$ 6,569
Reclassification of gain on loan sale other to gain on sale of mortgage loan	475	$ 709
Reclassification of net gain on sales and other assets to government guaranteed loan income	4,388	2,347
Reclassification of noninterest income to government guaranteed loan income	321
Reclassification of rental income	$ 691	$ 476

Summary of Significant Accoun_7

Summary of Significant Accounting Policies - Restrictions On Cash (Details) $ in Thousands	Dec. 31, 2019USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Required regulatory cash reserve balances	$ 170,593

Summary of Significant Accoun_8

Summary of Significant Accounting Policies - Equity Securities (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Impairment loss, equity securities	$ 0	$ 0

Summary of Significant Accoun_9

Summary of Significant Accounting Policies - Fair Value Option (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Fair value, option, change in fair value of government guaranteed loans and PPP Loans	$ (2,040,000)	$ 303,000	$ 0
Government guaranteed loan income, fee income - CARES Act	12,811,000
Gain (loss) on sale of government guaranteed loans	$ 3,379,000	$ 4,388,000	$ 2,348,000

Summary of Significant Accou_10

Summary of Significant Accounting Policies - Gain on Sale of Guaranteed Portion of SBA Loans (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Gain (loss) on sale of government guaranteed loans	$ 3,379	$ 4,388	$ 2,348
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Guaranteed portion of SBA loans, percent	0.50
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Guaranteed portion of SBA loans, percent	0.90

Summary of Significant Accou_11

Summary of Significant Accounting Policies - Impact of ASC 326 (Details) - USD ($) $ in Thousands	Jan. 01, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
CECL impact on date of adoption		$ 1,203,376	$ 1,190,797	$ 530,638	$ 488,929
Allowance for credit losses on debt securities held-to-maturity	$ 0	0
ACL Allocation	29,834	105,084	29,834	19,255	12,808
Allowance for credit losses on OBS credit exposures	878
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
CECL impact on date of adoption		172,232	147,911	83,968	44,627
Accounting Standards Update 2016-13
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of adoption ASC 326 PCD loans	19,710
Real Estate | Construction and Land
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ACL Allocation	3,822	7,768	3,821	2,186	1,270
Real Estate | Farmland
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ACL Allocation	61	56	62	58	45
Real Estate | Real estate
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ACL Allocation			3,343
Real Estate | Real estate | 1 - 4 family residential
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ACL Allocation	1,378	8,148	2,143	1,614	1,195
Real Estate | Real estate | Multi-family residential
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ACL Allocation	1,965	6,231	1,200	361	278
Real Estate | Commercial Real Estate
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ACL Allocation		35,237	10,117
Real Estate | Commercial Real Estate | OOCRE
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ACL Allocation	1,978	9,719	1,991	1,393	1,113
Real Estate | Commercial Real Estate | NOOCRE
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ACL Allocation	8,139		8,126	5,070	3,297
Commercial
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ACL Allocation	12,369	37,554	12,369	8,554	5,588
Consumer
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ACL Allocation	122	371	122	$ 19	$ 22
Cumulative Effect, Period Of Adoption, Adjusted Balance
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on debt securities held-to-maturity	0
ACL Allocation	68,971
Allowance for credit losses on OBS credit exposures	1,718
Cumulative Effect, Period Of Adoption, Adjusted Balance | Real Estate | Construction and Land
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ACL Allocation	3,760
Cumulative Effect, Period Of Adoption, Adjusted Balance | Real Estate | Farmland
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ACL Allocation	65
Cumulative Effect, Period Of Adoption, Adjusted Balance | Real Estate | Real estate | 1 - 4 family residential
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ACL Allocation	6,002
Cumulative Effect, Period Of Adoption, Adjusted Balance | Real Estate | Real estate | Multi-family residential
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ACL Allocation	2,593
Cumulative Effect, Period Of Adoption, Adjusted Balance | Real Estate | Commercial Real Estate | OOCRE
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ACL Allocation	13,066
Cumulative Effect, Period Of Adoption, Adjusted Balance | Real Estate | Commercial Real Estate | NOOCRE
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ACL Allocation	15,314
Cumulative Effect, Period Of Adoption, Adjusted Balance | Commercial
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ACL Allocation	27,729
Cumulative Effect, Period Of Adoption, Adjusted Balance | Consumer
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ACL Allocation	442
Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of adoption ASC 326 PCD loans		19,710
Allowance for credit losses on debt securities held-to-maturity	0
ACL Allocation	39,137		19,427
Allowance for credit losses on OBS credit exposures	840
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
CECL impact on date of adoption			(15,505)
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13 | Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
CECL impact on date of adoption			(15,505)
Cumulative Effect, Period of Adoption, Adjustment | Real Estate | OOCRE
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of adoption ASC 326 PCD loans		2,037
ACL Allocation			5,138
Cumulative Effect, Period of Adoption, Adjustment | Real Estate | Construction and Land
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of adoption ASC 326 PCD loans		645
ACL Allocation	(62)		(707)
Cumulative Effect, Period of Adoption, Adjustment | Real Estate | Farmland
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of adoption ASC 326 PCD loans		0
ACL Allocation	4		4
Cumulative Effect, Period of Adoption, Adjustment | Real Estate | Real estate | 1 - 4 family residential
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of adoption ASC 326 PCD loans		908
ACL Allocation	4,624		3,716
Cumulative Effect, Period of Adoption, Adjustment | Real Estate | Real estate | Multi-family residential
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of adoption ASC 326 PCD loans		0
ACL Allocation	628		628
Cumulative Effect, Period of Adoption, Adjustment | Real Estate | Commercial Real Estate | OOCRE
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of adoption ASC 326 PCD loans		7,682
ACL Allocation	11,088		3,406
Cumulative Effect, Period of Adoption, Adjustment | Real Estate | Commercial Real Estate | NOOCRE
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ACL Allocation	7,175
Cumulative Effect, Period of Adoption, Adjustment | Commercial
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of adoption ASC 326 PCD loans		8,335
ACL Allocation	15,360		7,025
Cumulative Effect, Period of Adoption, Adjustment | Consumer
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of adoption ASC 326 PCD loans		$ 103
ACL Allocation	$ 320		$ 217

Summary of Significant Accou_12

Summary of Significant Accounting Policies - Bank Premises and Equipment (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Impairment charges	$ 0	$ 0	$ 0
Site improvements
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	15 years
Minimum | Building and improvements
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	10 years
Minimum | Furniture and equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	3 years
Maximum | Building and improvements
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	40 years
Maximum | Furniture and equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	10 years

Summary of Significant Accou_13

Summary of Significant Accounting Policies - Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2019
Lessee, Lease, Description [Line Items]
Operating lease, right-of-use asset	$ 14,875	$ 13,205
Operating lease liability	$ 15,601	$ 14,095
Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Operating lease, right-of-use asset			$ 18,705
Operating lease liability			$ 18,753

Summary of Significant Accou_14

Summary of Significant Accounting Policies - Goodwill and Intangible Assets (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Impairment charges	$ 0	$ 0	$ 0
Core deposit intangibles | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful live	7 years
Core deposit intangibles | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful live	10 years

Summary of Significant Accou_15

Summary of Significant Accounting Policies - Marketing Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Marketing expense	$ 3,651	$ 3,259	$ 1,783

Summary of Significant Accou_16

Summary of Significant Accounting Policies Summary of Significant Accounting Policies - Income Taxes (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Penalties and interest expense	$ 143,000	$ 309,000	$ 0

Summary of Significant Accou_17

Summary of Significant Accounting Policies - Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings (numerator)
Net income allocated to common stockholders	$ 22,801	$ 22,920	$ 24,028	$ 4,134	$ 29,051	$ 27,405	$ 26,876	$ 7,407	$ 73,883	$ 90,739	$ 39,341
Shares (denominator)
Weighted average shares outstanding for basic EPS (thousands) (in shares)									49,883,000	53,154,000	24,169,000
Dilutive effect of employee stock-based awards (in shares)									153,000	824,000	421,000
Adjusted weighted average shares outstanding (in shares)									50,036,000	53,978,000	24,590,000
Earnings per share:
Basic (in USD per share)	$ 0.46	$ 0.46	$ 0.48	$ 0.08	$ 0.56	$ 0.52	$ 0.50	$ 0.14	$ 1.48	$ 1.71	$ 1.63
Diluted (in USD per share)	$ 0.46	$ 0.46	$ 0.48	$ 0.08	$ 0.56	$ 0.51	$ 0.49	$ 0.13	$ 1.48	$ 1.68	$ 1.60
Excluded from diluted EPS weighted average shares (in shares)									1,481,000	0

Supplemental Statement of Cas_3

Supplemental Statement of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Supplemental Disclosures of Cash Flow Information:
Cash paid for interest	$ 58,236	$ 88,175	$ 29,178
Cash paid for income taxes	40,690	24,100	6,525
Supplemental Disclosures of Non-Cash Flow Information:
Setup of ROU asset and lease liability upon adoption of ASC 842	0	9,380	0
Lease liabilities arising from obtaining right-of-use assets	4,123	0	0
Reclassification of deferred offering costs paid in 2018 from other assets to additional paid-in-capital	0	788	0
Subordinated debt issuance costs accrued but not yet paid in 2019	0	315	0
Reclassification of lease intangibles, cease-use liability and deferred rent liability to ROU asset upon adoption of ASC 842	0	(48)	0
Net foreclosure of other real estate owned and repossessed assets	2,764	5,995	8
Loans held for investment transferred to loans held for sale	4,511	0	0
Reclassification of branch assets held for sale to loans held for investment	0	26,171	0
Reclassification of branch liabilities held for sale to interest-bearing transaction and savings deposits	0	1,713	0
Noncash assets acquired
Debt securities	0	660,792	0
Equity securities	0	12,322	0
FHLB and FRB stock	0	29,490	0
Loans held for sale	0	9,360	0
Loans held for investment	0	3,245,248	(4,050)
Accrued interest receivable2	0	11,395	0
Bank-owned life insurance	0	56,841	0
Bank premises, furniture and equipment	0	36,855	1,162
Investment in unconsolidated subsidiaries	0	666	0
Intangible assets, net	0	65,718	(956)
Goodwill	0	209,393	1,995
Other assets	0	11,124	1,806
Right of use asset	0	9,373	0
Deferred taxes	0	11,783	0
Current taxes	0	1,812	0
Assets held for sale	0	85,307	0
Total assets	0	4,457,479	(43)
Noncash liabilities assumed
Noninterest-bearing deposits	0	825,364	303
Interest-bearing deposits	0	1,300,825	0
Certificates and other time deposits	0	1,346,915	0
Accounts payable and accrued expenses	0	26,491	0
Lease liability	0	9,373	0
Accrued interest payable	0	5,181	(260)
Securities sold under agreements to repurchase	0	3,226	0
Advances from FHLB	0	300,000	0
Subordinated debentures and subordinated notes	0	56,233	0
Liabilities held for sale	0	52,682	0
Total liabilities	0	3,926,290	43
Green Bancorp, Inc.
Noncash liabilities assumed
Market value of common stock issued	$ 0	631,415	0
Shares of common stock exchanged in connection with acquisition (in shares)	29,532,957
Preferred Stock
Noncash liabilities assumed
Equity	$ 0	0	0
Restricted stock units | Green Bancorp, Inc.
Noncash liabilities assumed
Market value of common stock issued	$ 0	$ 5,801	$ 0
Shares of common stock exchanged in connection with acquisition (in shares)	497,594

Share Transactions - (Details)

Share Transactions - (Details) - Common Stock - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 12, 2019	Sep. 03, 2019	Jan. 28, 2019
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount		$ 175,000,000			$ 50,000,000
Stock repurchase program, additional amount authorized			$ 75,000,000	$ 50,000,000
Shares repurchased (in shares)	2,349,639	3,802,711
Average price (in dollars per share)	$ 24.51	$ 24.86

Securities - Equity Securities

Securities - Equity Securities (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Equity securities	$ 11,363,000	$ 11,122,000
Equity Securities, FV-NI, Realized Gain (Loss)	8,000	0	$ 0
Unrealized gain recognized on equity securities with a readily determinable fair value	480,000	325,000	$ 0
Equity securities without readily determinable fair value	$ 3,575,000	$ 3,575,000

Securities - Debt Securities (D

Securities - Debt Securities (Details) - USD ($)	Jan. 01, 2019	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
Available for Sale
Total investment securities available for sale, amortized cost basis		$ 969,318,000		$ 942,131,000
Gross unrealized gains		56,422,000		23,997,000
Gross unrealized losses		1,411,000		1,763,000
Allowance for credit losses		0
Fair value		1,024,329,000		964,365,000
Held to maturity
Amortized cost		30,872,000		32,965,000
Gross unrecognized gains		3,411,000		1,845,000
Gross unrecognized loss		0		0
Allowance for credit losses		0	$ 0
Fair value		34,283,000		34,810,000
Debt securities, available-for-sale, transfer to trading, gain (loss)	$ 0
Corporate bonds
Available for Sale
Total investment securities available for sale, amortized cost basis		173,050,000		76,997,000
Gross unrealized gains		6,417,000		1,974,000
Gross unrealized losses		1,297,000		0
Allowance for credit losses		0
Fair value		178,170,000		78,971,000
Municipal securities
Available for Sale
Total investment securities available for sale, amortized cost basis		115,533,000		74,956,000
Gross unrealized gains		10,129,000		3,724,000
Gross unrealized losses		6,000		0
Allowance for credit losses		0
Fair value		125,656,000		78,680,000
Held to maturity
Amortized cost		22,270,000		22,535,000
Gross unrecognized gains		2,459,000		1,350,000
Gross unrecognized loss		0		0
Allowance for credit losses		0
Fair value		24,729,000		23,885,000
Debt securities, held-to-maturity, transfer, amount	4,758,000
Mortgage-backed securities
Available for Sale
Total investment securities available for sale, amortized cost basis		240,320,000		288,938,000
Gross unrealized gains		16,047,000		9,512,000
Gross unrealized losses		42,000		260,000
Allowance for credit losses		0
Fair value		256,325,000		298,190,000
Held to maturity
Amortized cost		6,982,000		8,621,000
Gross unrecognized gains		849,000		452,000
Gross unrecognized loss		0		0
Allowance for credit losses		0
Fair value		7,831,000		9,073,000
Debt securities, held-to-maturity, transfer, amount	$ 3,045,000
Collateralized mortgage obligations
Available for Sale
Total investment securities available for sale, amortized cost basis		388,080,000		431,276,000
Gross unrealized gains		20,895,000		6,465,000
Gross unrealized losses		66,000		1,503,000
Allowance for credit losses		0
Fair value		408,909,000		436,238,000
Held to maturity
Amortized cost		1,620,000		1,809,000
Gross unrecognized gains		103,000		43,000
Gross unrecognized loss		0		0
Allowance for credit losses		0
Fair value		1,723,000		1,852,000
Asset-backed securities
Available for Sale
Total investment securities available for sale, amortized cost basis		52,335,000		69,964,000
Gross unrealized gains		2,934,000		2,322,000
Gross unrealized losses		0		0
Allowance for credit losses		0
Fair value		$ 55,269,000		$ 72,286,000

Securities - Unrealized Loss Po

Securities - Unrealized Loss Position (Details) $ in Thousands	Dec. 31, 2020USD ($)investment	Dec. 31, 2019USD ($)investment
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract]
Less than 12 months, fair value	$ 69,022	$ 139,100
Less than 12 months unrealized loss	1,411	1,763
12 months or more fair value	0	0
12 months or more unrealized loss	0	0
Fair value, totals	69,022	139,100
Unrealized loss, totals	$ 1,411	$ 1,763
Number of investment positions in an unrealized loss position | investment	11	11
Corporate bonds
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract]
Less than 12 months, fair value	$ 31,953
Less than 12 months unrealized loss	1,297
12 months or more fair value	0
12 months or more unrealized loss	0
Fair value, totals	31,953
Unrealized loss, totals	1,297
Municipal securities
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract]
Less than 12 months, fair value	2,667	$ 468
Less than 12 months unrealized loss	6	1
12 months or more fair value	0	0
12 months or more unrealized loss	0	0
Fair value, totals	2,667	468
Unrealized loss, totals	6	1
Mortgage-backed securities
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract]
Less than 12 months, fair value	34,402	28,883
Less than 12 months unrealized loss	108	370
12 months or more fair value	0	0
12 months or more unrealized loss	0	0
Fair value, totals	34,402	28,883
Unrealized loss, totals	$ 108	370
Collateralized mortgage obligations
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract]
Less than 12 months, fair value		109,749
Less than 12 months unrealized loss		1,392
12 months or more fair value		0
12 months or more unrealized loss		0
Fair value, totals		109,749
Unrealized loss, totals		$ 1,392

Securities - Maturities (Detail

Securities - Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Available for sale, amortized cost
Due in one year or less		$ 0
Due from one year to five years	$ 4,935	4,904
Due from five years to ten years	154,576	74,596
Due after ten years	129,072	72,453
Total investment securities available for sale, single maturity date	288,583	151,953
Total investment securities available for sale, amortized cost basis	969,318	942,131
Available for sale, fair value
Due in one year or less		0
Due from one year to five years	5,139	5,100
Due from five years to ten years	158,510	76,403
Due after ten years	140,177	76,148
Total investment securities available for sale	303,826	157,651
Available for sale debt securities	1,024,329	964,365
Held-to-maturity, amortized cost
Due in one year or less		0
Due from one year to five years	0	0
Due from five years to ten years	3,334	1,204
Due after ten years	18,936	21,331
Total investment securities held to maturity	22,270	22,535
Debt securities held-to-maturity	30,872	32,965
Held-to-maturity, fair value
Due in one year or less		0
Due from one year to five years	0	0
Due from five years to ten years	3,591	1,219
Due after ten years	21,138	22,666
Total investment held to maturity	24,729	23,885
Fair value	34,283	34,810
Mortgage-backed securities
Available for sale, amortized cost
Amortized cost	628,400	720,214
Total investment securities available for sale, amortized cost basis	240,320	288,938
Available for sale, fair value
Fair value	665,234	734,428
Available for sale debt securities	256,325	298,190
Held-to-maturity, amortized cost
Amortized cost	8,602	10,430
Debt securities held-to-maturity	6,982	8,621
Held-to-maturity, fair value
Fair value	9,554	10,925
Fair value	7,831	9,073
Asset-backed securities
Available for sale, amortized cost
Amortized cost	52,335	69,964
Total investment securities available for sale, amortized cost basis	52,335	69,964
Available for sale, fair value
Fair value	55,269	72,286
Available for sale debt securities	55,269	72,286
Held-to-maturity, amortized cost
Amortized cost	0	0
Held-to-maturity, fair value
Fair value	$ 0	$ 0

Securities - Proceeds and Gross

Securities - Proceeds and Gross Gains/Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales	$ 113,771	$ 567,718	$ 40,822
Gross realized gains	2,879	532	335
Gross realized losses	$ 256	$ 2,384	$ 399

Loans Held for Investment and_3

Loans Held for Investment and Allowance for Credit Losses - Balance Sheet Summary (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2020	Dec. 31, 2018	Dec. 31, 2017
Loans and Allowance for Loan Losses
Total	$ 6,427,924	$ 5,921,071
Deferred loan (fees) costs, net	(2,468)	134
Allowance for credit losses	(105,084)	(29,834)	$ (29,834)	$ (19,255)	$ (12,808)
Loans held for investment carried at amortized cost, net	6,320,372	5,891,371
Loans held for investment, Paycheck Protection Program ("PPP") loans, carried at fair value	358,042	0
Total loans held for investment, net	6,678,414	5,891,371
Contractual principal balance	15,526	57,811
Accretion on PCD/PCI loans	5,081	13,522
Discount on retained loans from SBA loan sales	3,215	2,193
Government guaranteed loan income, fee income - CARES Act	12,811
Government guaranteed loan income, valuation allowance - CARES Act	1,799
Real Estate | Construction and Land
Loans and Allowance for Loan Losses
Total	693,030	629,374
Allowance for credit losses	(7,768)	(3,821)	(3,822)	(2,186)	(1,270)
Real Estate | Farmland
Loans and Allowance for Loan Losses
Total	13,844	16,939
Allowance for credit losses	(56)	(62)	(61)	(58)	(45)
Real Estate | Real estate
Loans and Allowance for Loan Losses
Total		869,852
Allowance for credit losses		(3,343)
Real Estate | Real estate | 1 - 4 family residential
Loans and Allowance for Loan Losses
Total	524,344	549,811
Allowance for credit losses	(8,148)	(2,143)	(1,378)	(1,614)	(1,195)
Real Estate | Real estate | Multi-family residential
Loans and Allowance for Loan Losses
Total	424,962	320,041
Allowance for credit losses	(6,231)	(1,200)	(1,965)	(361)	(278)
Real Estate | Commercial Real Estate
Loans and Allowance for Loan Losses
Total		2,490,983
Allowance for credit losses	(35,237)	(10,117)
Real Estate | Commercial Real Estate | OOCRE
Loans and Allowance for Loan Losses
Total	717,472	706,782
Allowance for credit losses	(9,719)	(1,991)	(1,978)	(1,393)	(1,113)
Real Estate | Commercial Real Estate | NOOCRE
Loans and Allowance for Loan Losses
Total	1,904,132	1,784,201
Allowance for credit losses		(8,126)	(8,139)	(5,070)	(3,297)
Commercial
Loans and Allowance for Loan Losses
Total	1,559,546	1,712,838
Allowance for credit losses	(37,554)	(12,369)	(12,369)	(8,554)	(5,588)
Mortgage warehouse
Loans and Allowance for Loan Losses
Total	577,594	183,628
Consumer
Loans and Allowance for Loan Losses
Total	13,000	17,457
Allowance for credit losses	$ (371)	$ (122)	$ (122)	$ (19)	$ (22)

Loans Held for Investment and_4

Loans Held for Investment and Allowance for Credit Losses - Allowance for Credit Loss Activity (Details) - USD ($) $ in Thousands	Jan. 01, 2020	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Analysis of allowance for loan losses
Balance at beginning of year	$ 29,834				$ 29,834				$ 19,255	$ 29,834	$ 19,255	$ 12,808
Provision for credit losses		$ 0	$ 8,692	$ 16,172	31,776	$ 3,493	$ 9,674	$ 3,335	5,012	56,640	21,514	6,603
Charge-offs										(20,973)	(11,320)	(197)
Recoveries										446	385	41
Balance at end of year	29,834	105,084				29,834				105,084	29,834	19,255
Cumulative Effect, Period of Adoption, Adjustment
Analysis of allowance for loan losses
Balance at beginning of year	19,427				19,427					19,427
Impact of adoption ASC 326 PCD loans										19,710
Balance at end of year	39,137					19,427					19,427
Non-PCD Loans
Analysis of allowance for loan losses
Provision for credit losses										54,663
PCD Loans
Analysis of allowance for loan losses
Provision for credit losses										1,977
Real Estate | OOCRE | Cumulative Effect, Period of Adoption, Adjustment
Analysis of allowance for loan losses
Balance at beginning of year	5,138				5,138					5,138
Impact of adoption ASC 326 PCD loans										2,037
Balance at end of year						5,138					5,138
Real Estate | Construction and Land
Analysis of allowance for loan losses
Balance at beginning of year	3,821				3,821				2,186	3,821	2,186	1,270
Provision for credit losses											1,635	916
Charge-offs										0	0	0
Recoveries										0	0	0
Balance at end of year	3,822	7,768				3,821				7,768	3,821	2,186
Real Estate | Construction and Land | Cumulative Effect, Period of Adoption, Adjustment
Analysis of allowance for loan losses
Balance at beginning of year	(707)				(707)					(707)
Impact of adoption ASC 326 PCD loans										645
Balance at end of year	(62)					(707)					(707)
Real Estate | Construction and Land | Non-PCD Loans
Analysis of allowance for loan losses
Provision for credit losses										4,554
Real Estate | Construction and Land | PCD Loans
Analysis of allowance for loan losses
Provision for credit losses										(545)
Real Estate | Farmland
Analysis of allowance for loan losses
Balance at beginning of year	62				62				58	62	58	45
Provision for credit losses											4	13
Charge-offs										0	0	0
Recoveries										0	0	0
Balance at end of year	61	56				62				56	62	58
Real Estate | Farmland | Cumulative Effect, Period of Adoption, Adjustment
Analysis of allowance for loan losses
Balance at beginning of year	4				4					4
Impact of adoption ASC 326 PCD loans										0
Balance at end of year	4					4					4
Real Estate | Farmland | Non-PCD Loans
Analysis of allowance for loan losses
Provision for credit losses										(10)
Real Estate | Farmland | PCD Loans
Analysis of allowance for loan losses
Provision for credit losses										0
Real Estate | Real estate
Analysis of allowance for loan losses
Balance at beginning of year	3,343				3,343					3,343
Balance at end of year						3,343					3,343
Real Estate | Real estate | 1 - 4 family residential
Analysis of allowance for loan losses
Balance at beginning of year	2,143				2,143				1,614	2,143	1,614	1,195
Provision for credit losses											619	419
Charge-offs										(18)	(157)	0
Recoveries										57	67	0
Balance at end of year	1,378	8,148				2,143				8,148	2,143	1,614
Real Estate | Real estate | 1 - 4 family residential | Cumulative Effect, Period of Adoption, Adjustment
Analysis of allowance for loan losses
Balance at beginning of year	3,716				3,716					3,716
Impact of adoption ASC 326 PCD loans										908
Balance at end of year	4,624					3,716					3,716
Real Estate | Real estate | 1 - 4 family residential | Non-PCD Loans
Analysis of allowance for loan losses
Provision for credit losses										1,720
Real Estate | Real estate | 1 - 4 family residential | PCD Loans
Analysis of allowance for loan losses
Provision for credit losses										(378)
Real Estate | Real estate | Multi-family residential
Analysis of allowance for loan losses
Balance at beginning of year	1,200				1,200				361	1,200	361	278
Provision for credit losses											839	83
Charge-offs										0	0	0
Recoveries										0	0	0
Balance at end of year	1,965	6,231				1,200				6,231	1,200	361
Real Estate | Real estate | Multi-family residential | Cumulative Effect, Period of Adoption, Adjustment
Analysis of allowance for loan losses
Balance at beginning of year	628				628					628
Impact of adoption ASC 326 PCD loans										0
Balance at end of year	628					628					628
Real Estate | Real estate | Multi-family residential | Non-PCD Loans
Analysis of allowance for loan losses
Provision for credit losses										4,403
Real Estate | Real estate | Multi-family residential | PCD Loans
Analysis of allowance for loan losses
Provision for credit losses										0
Real Estate | Commercial Real Estate
Analysis of allowance for loan losses
Balance at beginning of year	10,117				10,117					10,117
Charge-offs										(2,865)
Recoveries										0
Balance at end of year		35,237				10,117				35,237	10,117
Real Estate | Commercial Real Estate | Non-PCD Loans
Analysis of allowance for loan losses
Provision for credit losses										15,397
Real Estate | Commercial Real Estate | PCD Loans
Analysis of allowance for loan losses
Provision for credit losses										7,404
Real Estate | Commercial Real Estate | OOCRE
Analysis of allowance for loan losses
Balance at beginning of year	1,991				1,991				1,393	1,991	1,393	1,113
Provision for credit losses											598	280
Charge-offs										(2,421)	0	0
Recoveries										0	0	0
Balance at end of year	1,978	9,719				1,991				9,719	1,991	1,393
Real Estate | Commercial Real Estate | OOCRE | Cumulative Effect, Period of Adoption, Adjustment
Analysis of allowance for loan losses
Balance at beginning of year	3,406				3,406					3,406
Impact of adoption ASC 326 PCD loans										7,682
Balance at end of year	11,088					3,406					3,406
Real Estate | Commercial Real Estate | OOCRE | Non-PCD Loans
Analysis of allowance for loan losses
Provision for credit losses										4,364
Real Estate | Commercial Real Estate | OOCRE | PCD Loans
Analysis of allowance for loan losses
Provision for credit losses										(5,303)
Real Estate | Commercial Real Estate | NOOCRE
Analysis of allowance for loan losses
Balance at beginning of year	8,126				8,126				5,070	8,126	5,070	3,297
Provision for credit losses											3,056	1,773
Charge-offs											0	0
Recoveries											0	0
Balance at end of year	8,139					8,126					8,126	5,070
Real Estate | Commercial Real Estate | NOOCRE | Cumulative Effect, Period of Adoption, Adjustment
Analysis of allowance for loan losses
Balance at end of year	7,175
Commercial
Analysis of allowance for loan losses
Balance at beginning of year	12,369				12,369				8,554	12,369	8,554	5,588
Provision for credit losses											14,487	3,100
Charge-offs										(15,507)	(10,898)	(175)
Recoveries										102	226	41
Balance at end of year	12,369	37,554				12,369				37,554	12,369	8,554
Commercial | Cumulative Effect, Period of Adoption, Adjustment
Analysis of allowance for loan losses
Balance at beginning of year	7,025				7,025					7,025
Impact of adoption ASC 326 PCD loans										8,335
Balance at end of year	15,360					7,025					7,025
Commercial | Non-PCD Loans
Analysis of allowance for loan losses
Provision for credit losses										24,413
Commercial | PCD Loans
Analysis of allowance for loan losses
Provision for credit losses										817
Consumer
Analysis of allowance for loan losses
Balance at beginning of year	122				122				$ 19	122	19	22
Provision for credit losses											276	19
Charge-offs										(162)	(265)	(22)
Recoveries										287	92	0
Balance at end of year	122	$ 371				122				371	122	$ 19
Consumer | Cumulative Effect, Period of Adoption, Adjustment
Analysis of allowance for loan losses
Balance at beginning of year	217				$ 217					217
Impact of adoption ASC 326 PCD loans										103
Balance at end of year	$ 320					$ 217					$ 217
Consumer | Non-PCD Loans
Analysis of allowance for loan losses
Provision for credit losses										(178)
Consumer | PCD Loans
Analysis of allowance for loan losses
Provision for credit losses										$ (18)

Loans Held for Investment and_5

Loans Held for Investment and Allowance for Credit Losses - Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Servicing Asset at Amortized Cost [Line Items]
Loans	$ 6,427,924		$ 5,737,443
ACL Allocation	105,084	$ 29,834	29,834	$ 19,255	$ 12,808
Real Estate | Construction and Land
Servicing Asset at Amortized Cost [Line Items]
Loans	693,030		629,374
ACL Allocation	7,768	3,822	3,821	2,186	1,270
Real Estate | Real estate
Servicing Asset at Amortized Cost [Line Items]
ACL Allocation			3,343
Real Estate | Real estate | 1 - 4 family residential
Servicing Asset at Amortized Cost [Line Items]
Loans	524,344		549,811
ACL Allocation	8,148	1,378	2,143	1,614	1,195
Real Estate | Commercial Real Estate
Servicing Asset at Amortized Cost [Line Items]
Loans			2,490,983
ACL Allocation	35,237		10,117
Real Estate | Commercial Real Estate | OOCRE
Servicing Asset at Amortized Cost [Line Items]
Loans	717,472
ACL Allocation	9,719	1,978	1,991	1,393	1,113
Real Estate | Commercial Real Estate | NOOCRE
Servicing Asset at Amortized Cost [Line Items]
Loans	1,904,132
ACL Allocation		8,139	8,126	5,070	3,297
Commercial
Servicing Asset at Amortized Cost [Line Items]
Loans	1,559,546		1,712,838
ACL Allocation	37,554	12,369	12,369	8,554	5,588
Consumer
Servicing Asset at Amortized Cost [Line Items]
Loans	13,000		17,457
ACL Allocation	371	$ 122	$ 122	$ 19	$ 22
Real Estate
Servicing Asset at Amortized Cost [Line Items]
Loans	25,088
Real Estate | Real Estate | Real estate | 1 - 4 family residential
Servicing Asset at Amortized Cost [Line Items]
Loans	199
Real Estate | Real Estate | Commercial Real Estate | OOCRE
Servicing Asset at Amortized Cost [Line Items]
Loans	0
Real Estate | Real Estate | Commercial Real Estate | NOOCRE
Servicing Asset at Amortized Cost [Line Items]
Loans	16,080
Real Estate | Commercial
Servicing Asset at Amortized Cost [Line Items]
Loans	8,666
Real Estate | Consumer
Servicing Asset at Amortized Cost [Line Items]
Loans	143
Collateral Pledged
Servicing Asset at Amortized Cost [Line Items]
ACL Allocation	4,729
Collateral Pledged | Real Estate | Real estate | 1 - 4 family residential
Servicing Asset at Amortized Cost [Line Items]
ACL Allocation	11
Collateral Pledged | Real Estate | Commercial Real Estate | OOCRE
Servicing Asset at Amortized Cost [Line Items]
ACL Allocation	0
Collateral Pledged | Real Estate | Commercial Real Estate | NOOCRE
Servicing Asset at Amortized Cost [Line Items]
ACL Allocation	0
Collateral Pledged | Commercial
Servicing Asset at Amortized Cost [Line Items]
ACL Allocation	4,668
Collateral Pledged | Consumer
Servicing Asset at Amortized Cost [Line Items]
ACL Allocation	$ 50

Loans Held for Investment and_6

Loans Held for Investment and Allowance for Credit Losses - Loans Evaluated for Impairment (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment			$ 27,616
Loans collectively evaluated for impairment			5,766,737
Total loans held for investment, net	$ 6,678,414		5,891,371
Total	6,427,924		5,921,071
ACL Allocations
Loans individually evaluated for impairment			1,602
Loans collectively evaluated for impairment			27,639
PCI loans			593
Total	105,084	$ 29,834	29,834	$ 19,255	$ 12,808
PCD Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans held for investment, net			126,718
Real Estate | Construction Land and Farmland
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment			567
Loans collectively evaluated for impairment			641,799
Total			646,313
ACL Allocations
Loans individually evaluated for impairment			128
Loans collectively evaluated for impairment			3,755
PCI loans			0
Total			3,883
Real Estate | Construction Land and Farmland | PCD Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans held for investment, net			3,947
Real Estate | Real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment			156
Loans collectively evaluated for impairment			865,927
Total			869,852
ACL Allocations
Loans individually evaluated for impairment			37
Loans collectively evaluated for impairment			3,306
PCI loans			0
Total			3,343
Real Estate | Real estate | PCD Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans held for investment, net			3,769
Real Estate | Commercial Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment			21,644
Loans collectively evaluated for impairment			2,372,485
Total			2,490,983
ACL Allocations
Loans individually evaluated for impairment			395
Loans collectively evaluated for impairment			9,702
PCI loans			20
Total	35,237		10,117
Real Estate | Commercial Real Estate | PCD Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans held for investment, net			96,854
Commercial And Mortgage Warehouse Portfolio
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment			5,188
Loans collectively evaluated for impairment			1,869,259
Total			1,896,466
ACL Allocations
Loans individually evaluated for impairment			1,042
Loans collectively evaluated for impairment			10,754
PCI loans			573
Total			12,369
Commercial And Mortgage Warehouse Portfolio | PCD Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans held for investment, net			22,019
Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment			61
Loans collectively evaluated for impairment			17,267
Total	13,000		17,457
ACL Allocations
Loans individually evaluated for impairment			0
Loans collectively evaluated for impairment			122
PCI loans			0
Total	$ 371	$ 122	122	$ 19	$ 22
Consumer | PCD Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans held for investment, net			$ 129

Loans Held for Investment and_7

Loans Held for Investment and Allowance for Credit Losses - Impaired Loans (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Impaired Loans
Unpaid Contractual Principal Balance	$ 27,616
Recorded Investment with No Allowance	23,112
Recorded Investment with Allowance	4,504
Total Recorded Investment	27,616
Related Allowance	1,602
Average Recorded Investment YTD	33,088
Real Estate | Construction and Land
Impaired Loans
Unpaid Contractual Principal Balance	567
Recorded Investment with No Allowance	0
Recorded Investment with Allowance	567
Total Recorded Investment	567
Related Allowance	128
Average Recorded Investment YTD	1,793
Real Estate | Farmland
Impaired Loans
Unpaid Contractual Principal Balance	0
Recorded Investment with No Allowance	0
Recorded Investment with Allowance	0
Total Recorded Investment	0
Related Allowance	0
Average Recorded Investment YTD	0
Real Estate | Real estate | 1 - 4 family residential
Impaired Loans
Unpaid Contractual Principal Balance	156
Recorded Investment with No Allowance	0
Recorded Investment with Allowance	156
Total Recorded Investment	156
Related Allowance	37
Average Recorded Investment YTD	158
Real Estate | Real estate | Multi-family residential
Impaired Loans
Unpaid Contractual Principal Balance	0
Recorded Investment with No Allowance	0
Recorded Investment with Allowance	0
Total Recorded Investment	0
Related Allowance	0
Average Recorded Investment YTD	0
Real Estate | Commercial Real Estate
Impaired Loans
Unpaid Contractual Principal Balance	21,644
Recorded Investment with No Allowance	21,040
Recorded Investment with Allowance	604
Total Recorded Investment	21,644
Related Allowance	395
Average Recorded Investment YTD	22,529
Commercial
Impaired Loans
Unpaid Contractual Principal Balance	5,188
Recorded Investment with No Allowance	2,011
Recorded Investment with Allowance	3,177
Total Recorded Investment	5,188
Related Allowance	1,042
Average Recorded Investment YTD	8,546
Consumer
Impaired Loans
Unpaid Contractual Principal Balance	61
Recorded Investment with No Allowance	61
Recorded Investment with Allowance	0
Total Recorded Investment	61
Related Allowance	0
Average Recorded Investment YTD	$ 62

Loans Held for Investment and_8

Loans Held for Investment and Allowance for Credit Losses - Nonaccrual (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Loans and Allowance for Loan Losses
Non-accrual loans, excluding purchased credit impaired loans	$ 81,096,000	$ 29,779,000
Nonaccrual With No ACL	30,292,000	26,036,000
Financing receivable, nonaccrual, interest income	3,368,000	1,672,000
Commercial
Loans and Allowance for Loan Losses
Non-accrual loans, excluding purchased credit impaired loans	29,318,000	5,672,000
Nonaccrual With No ACL	1,015,000	2,747,000
Consumer
Loans and Allowance for Loan Losses
Non-accrual loans, excluding purchased credit impaired loans	1,374,000	54,000
Nonaccrual With No ACL	1,220,000	54,000
Construction and Land | Real Estate
Loans and Allowance for Loan Losses
Non-accrual loans, excluding purchased credit impaired loans	0	567,000
Nonaccrual With No ACL	0	0
1 - 4 family residential | Real estate | Real Estate
Loans and Allowance for Loan Losses
Non-accrual loans, excluding purchased credit impaired loans	3,308,000	1,581,000
Nonaccrual With No ACL	3,199,000	1,581,000
OOCRE | Commercial Real Estate | Real Estate
Loans and Allowance for Loan Losses
Non-accrual loans, excluding purchased credit impaired loans	6,266,000	3,029,000
Nonaccrual With No ACL	5,645,000	2,778,000
NOOCRE | Commercial Real Estate | Real Estate
Loans and Allowance for Loan Losses
Non-accrual loans, excluding purchased credit impaired loans	40,830,000	18,876,000
Nonaccrual With No ACL	19,213,000	18,876,000
PCD Loans
Loans and Allowance for Loan Losses
Financing receivable, nonaccrual, interest income	$ 1,508,000	$ 0

Loans Held for Investment and_9

Loans Held for Investment and Allowance for Credit Losses - Past Due (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Non-Accrual and Past Due Loans
Total Past Due	$ 67,933	$ 18,571
Total current	6,247,736	5,596,230
Loans	6,427,924	5,737,443
Total 90 Days Past Due and Still Accruing	4,204	3,660
30 to 59 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	14,349	6,209
60 to 89 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	6,684	8,702
90 Days or Greater
Non-Accrual and Past Due Loans
Total Past Due	46,900	3,660
Real Estate | Construction and Land
Non-Accrual and Past Due Loans
Total Past Due	0	0
Total current	690,345	629,374
Loans	693,030	629,374
Total 90 Days Past Due and Still Accruing	0	800
Real Estate | Construction and Land | 30 to 59 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	0	0
Real Estate | Construction and Land | 60 to 89 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	0	0
Real Estate | Construction and Land | 90 Days or Greater
Non-Accrual and Past Due Loans
Total Past Due	0	0
Real Estate | Farmland
Non-Accrual and Past Due Loans
Total Past Due	0	0
Total current	13,844	16,939
Loans	13,844	16,939
Total 90 Days Past Due and Still Accruing	0	0
Real Estate | Farmland | 30 to 59 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	0	0
Real Estate | Farmland | 60 to 89 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	0	0
Real Estate | Farmland | 90 Days or Greater
Non-Accrual and Past Due Loans
Total Past Due	0	0
Real Estate | Commercial Real Estate
Non-Accrual and Past Due Loans
Total Past Due		4,714
Total current		2,389,415
Loans		2,490,983
Total 90 Days Past Due and Still Accruing		511
Real Estate | Commercial Real Estate | 30 to 59 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due		12
Real Estate | Commercial Real Estate | 60 to 89 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due		3,834
Real Estate | Commercial Real Estate | 90 Days or Greater
Non-Accrual and Past Due Loans
Total Past Due		868
Real Estate | 1 - 4 family residential | Real estate
Non-Accrual and Past Due Loans
Total Past Due	7,262	4,270
Total current	508,341	541,772
Loans	524,344	549,811
Total 90 Days Past Due and Still Accruing	1,670	959
Real Estate | 1 - 4 family residential | Real estate | 30 to 59 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	2,338	2,595
Real Estate | 1 - 4 family residential | Real estate | 60 to 89 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	122	520
Real Estate | 1 - 4 family residential | Real estate | 90 Days or Greater
Non-Accrual and Past Due Loans
Total Past Due	4,802	1,155
Real Estate | Multi-family residential | Real estate
Non-Accrual and Past Due Loans
Total Past Due	0	0
Total current	424,962	320,041
Loans	424,962	320,041
Total 90 Days Past Due and Still Accruing	0	0
Real Estate | Multi-family residential | Real estate | 30 to 59 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	0	0
Real Estate | Multi-family residential | Real estate | 60 to 89 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	0	0
Real Estate | Multi-family residential | Real estate | 90 Days or Greater
Non-Accrual and Past Due Loans
Total Past Due	0	0
Real Estate | OOCRE | Commercial Real Estate
Non-Accrual and Past Due Loans
Total Past Due	7,235
Total current	672,246
Loans	717,472
Total 90 Days Past Due and Still Accruing	1,280
Real Estate | OOCRE | Commercial Real Estate | 30 to 59 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	2,278
Real Estate | OOCRE | Commercial Real Estate | 60 to 89 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	2,143
Real Estate | OOCRE | Commercial Real Estate | 90 Days or Greater
Non-Accrual and Past Due Loans
Total Past Due	2,814
Real Estate | NOOCRE | Commercial Real Estate
Non-Accrual and Past Due Loans
Total Past Due	28,172
Total current	1,832,784
Loans	1,904,132
Total 90 Days Past Due and Still Accruing	0
Real Estate | NOOCRE | Commercial Real Estate | 30 to 59 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	7,675
Real Estate | NOOCRE | Commercial Real Estate | 60 to 89 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	2,911
Real Estate | NOOCRE | Commercial Real Estate | 90 Days or Greater
Non-Accrual and Past Due Loans
Total Past Due	17,586
Commercial
Non-Accrual and Past Due Loans
Total Past Due	23,774	6,776
Total current	1,516,312	1,684,043
Loans	1,559,546	1,712,838
Total 90 Days Past Due and Still Accruing	1,230	1,317
Commercial | 30 to 59 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	1,983	3,572
Commercial | 60 to 89 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	1,431	1,707
Commercial | 90 Days or Greater
Non-Accrual and Past Due Loans
Total Past Due	20,360	1,497
Mortgage warehouse
Non-Accrual and Past Due Loans
Total Past Due	0
Total current	577,594
Loans	577,594
Total 90 Days Past Due and Still Accruing	0
Mortgage warehouse | 30 to 59 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	0
Mortgage warehouse | 60 to 89 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	0
Mortgage warehouse | 90 Days or Greater
Non-Accrual and Past Due Loans
Total Past Due	0
Consumer
Non-Accrual and Past Due Loans
Total Past Due	1,490	2,811
Total current	11,308	14,646
Loans	13,000	17,457
Total 90 Days Past Due and Still Accruing	24	73
Consumer | 30 to 59 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	75	30
Consumer | 60 to 89 Days Past Due
Non-Accrual and Past Due Loans
Total Past Due	77	2,641
Consumer | 90 Days or Greater
Non-Accrual and Past Due Loans
Total Past Due	1,338	140
Financial Asset Acquired with Credit Deterioration
Non-Accrual and Past Due Loans
Loans	112,255	126,718
Financial Asset Acquired with Credit Deterioration | 90 Days or Greater
Non-Accrual and Past Due Loans
Total 90 Days Past Due and Still Accruing	32,627	41,328
Financial Asset Acquired with Credit Deterioration | Real Estate | Construction and Land
Non-Accrual and Past Due Loans
Loans	2,685	3,947
Financial Asset Acquired with Credit Deterioration | Real Estate | Farmland
Non-Accrual and Past Due Loans
Loans	0	0
Financial Asset Acquired with Credit Deterioration | Real Estate | Commercial Real Estate
Non-Accrual and Past Due Loans
Loans		96,854
Financial Asset Acquired with Credit Deterioration | Real Estate | 1 - 4 family residential | Real estate
Non-Accrual and Past Due Loans
Loans	8,741	3,769
Financial Asset Acquired with Credit Deterioration | Real Estate | Multi-family residential | Real estate
Non-Accrual and Past Due Loans
Loans	0	0
Financial Asset Acquired with Credit Deterioration | Real Estate | OOCRE | Commercial Real Estate
Non-Accrual and Past Due Loans
Loans	37,991
Financial Asset Acquired with Credit Deterioration | Real Estate | NOOCRE | Commercial Real Estate
Non-Accrual and Past Due Loans
Loans	43,176
Financial Asset Acquired with Credit Deterioration | Commercial
Non-Accrual and Past Due Loans
Loans	19,460	22,019
Financial Asset Acquired with Credit Deterioration | Mortgage warehouse
Non-Accrual and Past Due Loans
Loans	0
Financial Asset Acquired with Credit Deterioration | Consumer
Non-Accrual and Past Due Loans
Loans	$ 202	$ 129

Loans Held for Investment an_10

Loans Held for Investment and Allowance for Credit Losses - Trouble Debt Restructuring (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)loanmodification	Dec. 31, 2019USD ($)loan	Feb. 11, 2021USD ($)
Troubled Debt Restructuring
Recorded investment in TDRs	$ 29,157	$ 2,142
Adjusted Payment Structure	6,745
Payment Deferrals	20,799
Total Modifications	$ 27,544
Number of Loans | loan	13	2
Loans modified as TDR | loan	0	0
Interest income that would have been recorded if there was no modification	$ 1,537
Number of loan modifications | modification	754
Coronavirus Aid Relief And Economic Security Act, Amount Qualified For Temporary Suspension Of TDR Requirements, CARES Act	$ 1,126,975
Subsequent Event
Troubled Debt Restructuring
Loans Outstanding with Remaining Deferment, CARES Act			$ 26,111
Commercial
Troubled Debt Restructuring
Adjusted Payment Structure	1,419	$ 919
Payment Deferrals	1,345	115
Total Modifications	$ 2,764	$ 1,034
Number of Loans | loan	4	2
Commercial | Commercial Real Estate | OOCRE
Troubled Debt Restructuring
Adjusted Payment Structure	$ 5,326
Payment Deferrals	0
Total Modifications	$ 5,326
Number of Loans | loan	5
Commercial | Commercial Real Estate | NOOCRE
Troubled Debt Restructuring
Adjusted Payment Structure	$ 0
Payment Deferrals	19,454
Total Modifications	$ 19,454
Number of Loans | loan	4

Loans Held for Investment an_11

Loans Held for Investment and Allowance for Credit Losses - Credit Quality Indicators (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Credit Quality Indicators
2020	$ 1,116,342
2019	1,000,872
2018	1,191,171
2017	357,775
2016	426,762
Prior	830,986
Revolving Loans Amortized Cost Basis	1,472,497
Revolving Loans Converted to Term	31,519
Total	6,427,924	$ 5,921,071
Deferred loan (fees) costs, net	(2,468)	134
Pass
Credit Quality Indicators
2020	1,112,617
2019	950,257
2018	1,049,368
2017	308,163
2016	349,349
Prior	682,267
Revolving Loans Amortized Cost Basis	1,398,329
Revolving Loans Converted to Term	16,368
Total	5,866,718	5,640,781
Special Mention
Credit Quality Indicators
2020	1,407
2019	36,278
2018	84,021
2017	33,756
2016	40,083
Prior	45,356
Revolving Loans Amortized Cost Basis	27,415
Revolving Loans Converted to Term	3,670
Total	271,986	80,293
Substandard
Credit Quality Indicators
2020	2,318
2019	14,337
2018	39,038
2017	12,438
2016	18,531
Prior	32,069
Revolving Loans Amortized Cost Basis	46,753
Revolving Loans Converted to Term	11,481
Total	176,965	73,279
Doubtful
Credit Quality Indicators
Total		0
PCD
Credit Quality Indicators
2020	0
2019	0
2018	18,744
2017	3,418
2016	18,799
Prior	71,294
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term	0
Total	112,255
PCD | PCD Loans
Credit Quality Indicators
Total		126,718
Real Estate | Construction and Land
Credit Quality Indicators
2020	155,358
2019	282,497
2018	182,548
2017	11,791
2016	9,938
Prior	29,832
Revolving Loans Amortized Cost Basis	21,066
Revolving Loans Converted to Term	0
Total	693,030	629,374
Real Estate | Construction and Land | Pass
Credit Quality Indicators
2020	155,358
2019	282,497
2018	179,372
2017	11,791
2016	9,938
Prior	27,147
Revolving Loans Amortized Cost Basis	21,066
Revolving Loans Converted to Term	0
Total	687,169	618,773
Real Estate | Construction and Land | Special Mention
Credit Quality Indicators
2020	0
2019	0
2018	2,666
2017	0
2016	0
Prior	0
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term	0
Total	2,666	3,965
Real Estate | Construction and Land | Substandard
Credit Quality Indicators
2020	0
2019	0
2018	510
2017	0
2016	0
Prior	0
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term	0
Total	510	2,689
Real Estate | Construction and Land | Doubtful
Credit Quality Indicators
Total		0
Real Estate | Construction and Land | PCD
Credit Quality Indicators
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	2,685
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term	0
Total	2,685
Real Estate | Construction and Land | PCD | PCD Loans
Credit Quality Indicators
Total		3,947
Real Estate | Farmland
Credit Quality Indicators
2020	867
2019	972
2018	3,367
2017	3,688
2016	0
Prior	3,656
Revolving Loans Amortized Cost Basis	1,294
Revolving Loans Converted to Term	0
Total	13,844	16,939
Real Estate | Farmland | Pass
Credit Quality Indicators
2020	867
2019	972
2018	3,367
2017	3,688
2016	0
Prior	3,656
Revolving Loans Amortized Cost Basis	1,294
Revolving Loans Converted to Term	0
Total	13,844	16,939
Real Estate | Farmland | Special Mention
Credit Quality Indicators
Total		0
Real Estate | Farmland | Substandard
Credit Quality Indicators
Total		0
Real Estate | Farmland | Doubtful
Credit Quality Indicators
Total		0
Real Estate | Farmland | PCD | PCD Loans
Credit Quality Indicators
Total		0
Real Estate | Real estate
Credit Quality Indicators
Total		869,852
Real Estate | Commercial Real Estate
Credit Quality Indicators
Total		2,490,983
Real Estate | Commercial Real Estate | Pass
Credit Quality Indicators
Total		2,332,357
Real Estate | Commercial Real Estate | Special Mention
Credit Quality Indicators
Total		23,494
Real Estate | Commercial Real Estate | Substandard
Credit Quality Indicators
Total		38,278
Real Estate | Commercial Real Estate | Doubtful
Credit Quality Indicators
Total		0
Real Estate | Commercial Real Estate | PCD | PCD Loans
Credit Quality Indicators
Total		96,854
Commercial
Credit Quality Indicators
2020	253,032
2019	165,184
2018	144,430
2017	67,921
2016	32,434
Prior	57,986
Revolving Loans Amortized Cost Basis	816,214
Revolving Loans Converted to Term	22,345
Total	1,559,546	1,712,838
Commercial | Pass
Credit Quality Indicators
2020	251,004
2019	158,158
2018	112,961
2017	50,734
2016	19,821
Prior	41,856
Revolving Loans Amortized Cost Basis	758,832
Revolving Loans Converted to Term	13,400
Total	1,406,766	1,610,150
Commercial | Special Mention
Credit Quality Indicators
2020	1,306
2019	2,539
2018	8,224
2017	10,033
2016	1,201
Prior	2,165
Revolving Loans Amortized Cost Basis	26,922
Revolving Loans Converted to Term	3,670
Total	56,060	51,999
Commercial | Substandard
Credit Quality Indicators
2020	722
2019	4,487
2018	23,245
2017	3,772
2016	7,216
Prior	2,083
Revolving Loans Amortized Cost Basis	30,460
Revolving Loans Converted to Term	5,275
Total	77,260	28,670
Commercial | Doubtful
Credit Quality Indicators
Total		0
Commercial | PCD
Credit Quality Indicators
2020	0
2019	0
2018	0
2017	3,382
2016	4,196
Prior	11,882
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term	0
Total	19,460
Commercial | PCD | PCD Loans
Credit Quality Indicators
Total		22,019
Mortgage warehouse
Credit Quality Indicators
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans Amortized Cost Basis	577,594
Revolving Loans Converted to Term	0
Total	577,594	183,628
Mortgage warehouse | Pass
Credit Quality Indicators
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans Amortized Cost Basis	577,594
Revolving Loans Converted to Term	0
Total	577,594
Mortgage warehouse | Special Mention
Credit Quality Indicators
Total		0
Mortgage warehouse | Substandard
Credit Quality Indicators
Total		0
Mortgage warehouse | Doubtful
Credit Quality Indicators
Total		0
Mortgage warehouse | PCD | PCD Loans
Credit Quality Indicators
Total		0
Consumer
Credit Quality Indicators
2020	2,489
2019	1,216
2018	1,038
2017	3,995
2016	912
Prior	812
Revolving Loans Amortized Cost Basis	2,538
Revolving Loans Converted to Term	0
Total	13,000	17,457
Consumer | Pass
Credit Quality Indicators
2020	2,489
2019	1,216
2018	1,038
2017	3,899
2016	887
Prior	353
Revolving Loans Amortized Cost Basis	1,475
Revolving Loans Converted to Term	0
Total	11,357	17,106
Consumer | Special Mention
Credit Quality Indicators
2020	0
2019	0
2018	0
2017	0
2016	25
Prior	227
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term	0
Total	252	40
Consumer | Substandard
Credit Quality Indicators
2020	0
2019	0
2018	0
2017	60
2016	0
Prior	66
Revolving Loans Amortized Cost Basis	1,063
Revolving Loans Converted to Term	0
Total	1,189	182
Consumer | Doubtful
Credit Quality Indicators
Total		0
Consumer | PCD
Credit Quality Indicators
2020	0
2019	0
2018	0
2017	36
2016	0
Prior	166
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term	0
Total	202
Consumer | PCD | PCD Loans
Credit Quality Indicators
Total		129
1 - 4 family residential | Real Estate | Real estate
Credit Quality Indicators
2020	120,580
2019	80,694
2018	92,186
2017	50,766
2016	31,936
Prior	125,225
Revolving Loans Amortized Cost Basis	19,989
Revolving Loans Converted to Term	2,968
Total	524,344	549,811
1 - 4 family residential | Real Estate | Real estate | Pass
Credit Quality Indicators
2020	120,580
2019	79,617
2018	91,890
2017	49,338
2016	31,936
Prior	115,797
Revolving Loans Amortized Cost Basis	19,065
Revolving Loans Converted to Term	2,968
Total	511,191	541,787
1 - 4 family residential | Real Estate | Real estate | Special Mention
Credit Quality Indicators
2020	0
2019	1,077
2018	154
2017	760
2016	0
Prior	687
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term	0
Total	2,678	795
1 - 4 family residential | Real Estate | Real estate | Substandard
Credit Quality Indicators
2020	0
2019	0
2018	142
2017	668
2016	0
Prior	0
Revolving Loans Amortized Cost Basis	924
Revolving Loans Converted to Term	0
Total	1,734	3,460
1 - 4 family residential | Real Estate | Real estate | Doubtful
Credit Quality Indicators
Total		0
1 - 4 family residential | Real Estate | Real estate | PCD
Credit Quality Indicators
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	8,741
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term	0
Total	8,741
1 - 4 family residential | Real Estate | Real estate | PCD | PCD Loans
Credit Quality Indicators
Total		3,769
Multi-family residential | Real Estate | Real estate
Credit Quality Indicators
2020	107,332
2019	106,559
2018	152,401
2017	18,722
2016	32,672
Prior	7,218
Revolving Loans Amortized Cost Basis	58
Revolving Loans Converted to Term	0
Total	424,962	320,041
Multi-family residential | Real Estate | Real estate | Pass
Credit Quality Indicators
2020	107,332
2019	106,559
2018	139,721
2017	18,722
2016	32,672
Prior	7,218
Revolving Loans Amortized Cost Basis	58
Revolving Loans Converted to Term	0
Total	412,282	320,041
Multi-family residential | Real Estate | Real estate | Special Mention
Credit Quality Indicators
2020	0
2019	0
2018	12,680
2017	0
2016	0
Prior	0
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term	0
Total	12,680	0
Multi-family residential | Real Estate | Real estate | Substandard
Credit Quality Indicators
Total		0
Multi-family residential | Real Estate | Real estate | Doubtful
Credit Quality Indicators
Total		0
Multi-family residential | Real Estate | Real estate | PCD | PCD Loans
Credit Quality Indicators
Total		0
OOCRE | Real Estate | Commercial Real Estate
Credit Quality Indicators
2020	114,111
2019	66,210
2018	109,244
2017	86,784
2016	111,328
Prior	217,856
Revolving Loans Amortized Cost Basis	5,733
Revolving Loans Converted to Term	6,206
Total	717,472	706,782
OOCRE | Real Estate | Commercial Real Estate | Pass
Credit Quality Indicators
2020	113,741
2019	65,262
2018	75,940
2017	79,253
2016	79,202
Prior	176,668
Revolving Loans Amortized Cost Basis	5,532
Revolving Loans Converted to Term	0
Total	595,598
OOCRE | Real Estate | Commercial Real Estate | Special Mention
Credit Quality Indicators
2020	0
2019	948
2018	22,725
2017	3,701
2016	12,860
Prior	4,326
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term	0
Total	44,560
OOCRE | Real Estate | Commercial Real Estate | Substandard
Credit Quality Indicators
2020	370
2019	0
2018	10,579
2017	3,830
2016	11,315
Prior	6,822
Revolving Loans Amortized Cost Basis	201
Revolving Loans Converted to Term	6,206
Total	39,323
OOCRE | Real Estate | Commercial Real Estate | PCD
Credit Quality Indicators
2020	0
2019	0
2018	0
2017	0
2016	7,951
Prior	30,040
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term	0
Total	37,991
NOOCRE | Real Estate | Commercial Real Estate
Credit Quality Indicators
2020	362,573
2019	297,540
2018	505,957
2017	114,108
2016	207,542
Prior	388,401
Revolving Loans Amortized Cost Basis	28,011
Revolving Loans Converted to Term	0
Total	1,904,132	$ 1,784,201
NOOCRE | Real Estate | Commercial Real Estate | Pass
Credit Quality Indicators
2020	361,246
2019	255,976
2018	445,079
2017	90,738
2016	174,893
Prior	309,572
Revolving Loans Amortized Cost Basis	13,413
Revolving Loans Converted to Term	0
Total	1,650,917
NOOCRE | Real Estate | Commercial Real Estate | Special Mention
Credit Quality Indicators
2020	101
2019	31,714
2018	37,572
2017	19,262
2016	25,997
Prior	37,951
Revolving Loans Amortized Cost Basis	493
Revolving Loans Converted to Term	0
Total	153,090
NOOCRE | Real Estate | Commercial Real Estate | Substandard
Credit Quality Indicators
2020	1,226
2019	9,850
2018	4,562
2017	4,108
2016	0
Prior	23,098
Revolving Loans Amortized Cost Basis	14,105
Revolving Loans Converted to Term	0
Total	56,949
NOOCRE | Real Estate | Commercial Real Estate | PCD
Credit Quality Indicators
2020	0
2019	0
2018	18,744
2017	0
2016	6,652
Prior	17,780
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term	0
Total	$ 43,176

Loans Held for Investment an_12

Loans Held for Investment and Allowance for Credit Losses - PCI Loans (Details) - PCD Loans $ in Thousands	Dec. 31, 2019USD ($)
Financing Receivable, Allowance for Credit Losses [Line Items]
Carrying amount	$ 126,125
Outstanding balance	$ 157,417

Loans Held for Investment an_13

Loans Held for Investment and Allowance for Credit Losses - PCI Accretable Yield Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance at beginning of period	$ 18,747	$ 2,723
Additions	19,870	1,459
Reclassifications from nonaccretable	12,719	19,162
Accretion	(13,112)	(4,597)
Balance at year-end	38,224	$ 18,747
Cash collections of certain loans acquired in transfer accounted for as debt securities	$ 440

Loans Held for Investment an_14

Loans Held for Investment and Allowance for Credit Losses - Servicing Assets (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Servicing Asset at Amortized Cost [Line Items]
Servicing asset	$ 264,019,000	$ 205,210,000
Summary of changes in related servicing assets
Balance at beginning of year	3,113,000	1,304,000
Servicing assets acquired through acquisition	0	2,382,000
Increase from loan sales	1,121,000	1,253,000
Servicing asset impairment, net of recoveries	(368,000)	(188,000)	$ 0
Amortization charged as a reduction to income	(503,000)	(1,638,000)
Balance at year-end	3,363,000	3,113,000	1,304,000
Valuation allowance recorded	556,000	188,000
Proceeds from sale of loans	125,375,000	34,483,000	36,227,000
Gain on sale of loans	1,239,000	475,000	708,000
Small Business Administration Loans
Summary of changes in related servicing assets
Proceeds from sale of loans	41,488,000	64,830,000	26,662,000
Gain on sale of loans	3,379,000	4,388,000	$ 2,348,000
Interest-Only-Strip
Summary of changes in related servicing assets
Interest receivable	$ 0	$ 0

Bank Premises and Equipment (De

Bank Premises and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Bank premises, furniture and equipment, gross	$ 133,499	$ 132,437
Less accumulated depreciation	18,436	13,901
Bank premises, furniture and equipment, net	115,063	118,536
Depreciation	4,535	3,911	$ 3,017
Building and improvements
Property, Plant and Equipment [Line Items]
Bank premises, furniture and equipment, gross	61,035	60,959
Site improvements
Property, Plant and Equipment [Line Items]
Bank premises, furniture and equipment, gross	3,303	2,633
Tenant improvements
Property, Plant and Equipment [Line Items]
Bank premises, furniture and equipment, gross	779	744
Leasehold improvements
Property, Plant and Equipment [Line Items]
Bank premises, furniture and equipment, gross	5,923	5,542
Land
Property, Plant and Equipment [Line Items]
Bank premises, furniture and equipment, gross	44,078	45,878
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Bank premises, furniture and equipment, gross	17,751	16,073
Construction in Progress
Property, Plant and Equipment [Line Items]
Bank premises, furniture and equipment, gross	$ 630	$ 608

Leases (Details)

Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Operating lease, right-of-use asset	$ 14,875	$ 13,205
Lease liability	$ 15,601	$ 14,095
Operating lease, right of use asset, balance sheet location [Extensible List]	us-gaap:OtherAssets	us-gaap:OtherAssets
Operating lease liability, balance sheet location [Extensible List]	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
Lease, Cost [Abstract]
Operating lease cost	$ 4,131	$ 4,999
Variable lease cost	810	988
Net lease cost	4,941	5,987
Operating cash flows from operating leases	$ 3,994	$ 4,325
Weighted-average remaining lease term - operating leases, in years	3 years 3 months 18 days	4 years 4 months 24 days
Weighted-average discount rate - operating leases	1.56%	1.59%
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term (in years)	1 year
Extension options (in years)	5 years
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term (in years)	8 years
Extension options (in years)	10 years

Leases - Maturity (Details)

Leases - Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Within one year	$ 3,637
After one but within two years	3,323
After two but within three years	3,246
After three but within four years	2,808
After four but within five years	2,058
After five years	1,325
Total undiscounted cash flows	16,397
Less: Discount on cash flows	(796)
Operating lease liability	$ 15,601	$ 14,095

Intangible Assets - Finite-Live

Intangible Assets - Finite-Lived Intangible Assets (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets, Net [Abstract]
Gross Intangible Asset	$ 93,395,000	$ 92,260,000
Valuation Allowance	556,000	188,000
Accumulated amortization	31,106,000	19,809,000
Net intangible assets	61,733,000	72,263,000
Amortization of intangible assets	10,790,000	10,887,000	$ 3,467,000
Servicing asset impairment, net of recoveries	368,000	188,000	0
Amortization of Intangible Assets, Occupancy and Equipment, and Other Income
Finite-Lived Intangible Assets, Net [Abstract]
Amortization of intangible assets	$ 11,297,000	$ 12,022,000	$ 4,060,000
Core deposit intangibles
Finite-Lived Intangible Assets, Net [Abstract]
Weighted amortization period	6 years	7 years
Gross Intangible Asset	$ 81,769,000	$ 81,769,000
Valuation Allowance	0	0
Accumulated amortization	24,011,000	14,206,000
Net intangible assets	$ 57,758,000	$ 67,563,000
Servicing asset
Finite-Lived Intangible Assets, Net [Abstract]
Weighted amortization period	7 years 4 months 24 days	6 years 8 months 12 days
Gross Intangible Asset	$ 6,847,000	$ 5,726,000
Valuation Allowance	556,000	188,000
Accumulated amortization	2,928,000	2,425,000
Net intangible assets	$ 3,363,000	$ 3,113,000
Intangible lease assets
Finite-Lived Intangible Assets, Net [Abstract]
Weighted amortization period	1 year 4 months 24 days	1 year 4 months 24 days
Gross Intangible Asset	$ 4,779,000	$ 4,765,000
Valuation Allowance	0	0
Accumulated amortization	4,167,000	3,178,000
Net intangible assets	$ 612,000	$ 1,587,000

Intangible Assets - Future Amor

Intangible Assets - Future Amortization Expense (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Estimated aggregate future amortization expense [Abstract]
2021	$ 10,509
2022	10,439
2023	10,266
2024	10,238
2025	9,800
Thereafter	10,481
Net intangible assets	$ 61,733	$ 72,263

Goodwill (Details)

Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Beginning Balance	$ 370,840	$ 161,447
Ending Balance	370,840	370,840
Green Bancorp, Inc.
Goodwill [Roll Forward]
Acquisitions	$ 0	$ 209,393

Deposits (Details)

Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Banking and Thrift [Abstract]
Noninterest-bearing demand accounts	$ 2,097,099	$ 1,556,500
Interest-bearing demand accounts	453,111	388,877
Savings accounts	106,820	86,079
Limited access money market accounts	2,398,525	2,180,016
Certificates of deposit, greater than $100	1,179,853	1,234,324
Certificates of deposit, less than $100	277,438	448,554
Total deposits	$ 6,512,846	$ 5,894,350

Deposits - Scheduled Maturities

Deposits - Scheduled Maturities of Certificates of Deposit (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Banking and Thrift [Abstract]
2021	$ 1,194,780
2022	217,932
2023	24,035
2024	12,365
2025	8,179
Total	$ 1,457,291	$ 1,682,878

Deposits - Additional Informati

Deposits - Additional Information (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Banking and Thrift [Abstract]
Demand deposit overdrafts reclassified as loans	$ 106	$ 259
Brokered deposits	$ 199,801	$ 312,467

Advances from the FHLB - Additi

Advances from the FHLB - Additional Information (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Advances from FHLB	$ 777,718	$ 677,870
Availability to borrow additional funds	$ 766,437
Weighted Average
Debt Instrument [Line Items]
Advances from Federal Home Loan Bank, weighted average rate	0.94%

Advances from the FHLB - Contra

Advances from the FHLB - Contractual Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Banking and Thrift [Abstract]
2022	$ 27,718
2025 and thereafter	750,000
Advances from FHLB	$ 777,718	$ 677,870

Other Credit Extensions (Detail

Other Credit Extensions (Details)	Dec. 31, 2020USD ($)facility	Dec. 31, 2019USD ($)facility
Federal Funds Credit Extensions With Commercial Banks
Other Credit Extensions
Number of credit facilities | facility	5	3
Maximum available borrowings	$ 175,000,000	$ 150,000,000
Outstanding borrowings	0	0
Federal Reserve Bank Secured Line Of Credit
Other Credit Extensions
Maximum available borrowings	871,485,000	1,022,401,000
Outstanding borrowings	0	0
Amounts of commercial loans pledged as collateral	$ 94,222,000	$ 843,861,000

Borrowed Funds - Summary (Detai

Borrowed Funds - Summary (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Subordinated debentures and subordinated notes	$ 262,778	$ 145,571
Junior Subordinated Debt
Debt Instrument [Line Items]
Subordinated debentures and subordinated notes	30,244	30,023
Unamortized discount (premium), net	3,624	3,845
Subordinated Debt
Debt Instrument [Line Items]
Subordinated debentures and subordinated notes	232,534	115,548
Unamortized discount (premium), net	(1,038)	(2,081)
Debt issuance costs, net	$ 3,504	$ 1,533

Borrowed Funds - Narrative (Det

Borrowed Funds - Narrative (Details)	Feb. 12, 2021USD ($)shares	Oct. 05, 2020USD ($)	Nov. 15, 2019	Nov. 08, 2019USD ($)	Jan. 01, 2019USD ($)	Dec. 31, 2020quarter	Dec. 31, 2013USD ($)$ / sharesshares	Dec. 31, 2019USD ($)	Aug. 01, 2017USD ($)
Subordinated Debt
Debt Instrument [Line Items]
Face amount of subordinated notes issued to related party							$ 5,000,000
Fixed rate (as a percent)							6.00%
Subordinated Debt | Subsequent Event
Debt Instrument [Line Items]
Number of warrants exercised (in warrants) | shares	10,000
Fair value of warrants exercised	$ 110,000
Affiliated Entity | Subordinated Debt
Debt Instrument [Line Items]
Number of shares that warrants issued to related party may be converted into (in shares) | shares							25,000,000
Exercise price of warrants issued to related party (in dollars per share) | $ / shares							$ 11
Price used to calculate fair value of warrants issued to related party (in dollars per share) | $ / shares							$ 0.80
Parkway National Capital Trust 1
Debt Instrument [Line Items]
Distribution effective rate (as a percent)						2.07%		3.74%
Parkway National Capital Trust 1 | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable distribution rate (as a percent)						1.85%
Parkway Trust Securities | Junior Subordinated Debt
Debt Instrument [Line Items]
Debt instrument, face amount							$ 3,093,000
SovDallas Trust Securities | Junior Subordinated Debt
Debt Instrument [Line Items]
Debt instrument, face amount									$ 8,609,000
Debt instrument, effective percentage						4.23%		6.10%
SovDallas Trust Securities | Junior Subordinated Debt | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest on securities, addition to LIBOR						4.00%
Patriot I Trust Securities | Junior Subordinated Debt
Debt Instrument [Line Items]
Debt instrument, face amount					$ 5,155,000
Debt instrument, effective percentage						2.09%		3.84%
Patriot I Trust Securities | Junior Subordinated Debt | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate					1.85%
Patriot II Trust Securities | Junior Subordinated Debt
Debt Instrument [Line Items]
Debt instrument, face amount					$ 17,011,000
Debt instrument, effective percentage						2.02%		3.69%
Patriot II Trust Securities | Junior Subordinated Debt | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate					1.80%
The 8.50% Fixed-to-Floating Notes | Subordinated Debt
Debt Instrument [Line Items]
Debt instrument, face amount								$ 35,000,000
Interest rate, stated percentage								8.50%
The 8.50% Fixed-to-Floating Notes | Subordinated Debt | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate					6.685%
2019 Notes | Subordinated Debt
Debt Instrument [Line Items]
Debt instrument, face amount				$ 75,000,000
Basis spread on variable rate			3.47%
Interest rate, stated percentage				4.75%
Redemption price, percentage				100.00%
2020 Notes | Subordinated Debt
Debt Instrument [Line Items]
Debt instrument, face amount		$ 125,000,000
Interest rate, stated percentage		4.125%
2020 Notes | Subordinated Debt | Overnight Funding Rate
Debt Instrument [Line Items]
Basis spread on variable rate		3.995%
Maximum
Debt Instrument [Line Items]
Interest distribution quarterly periods | quarter						20

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Operating Loss Carryforwards [Line Items]
Taxes payable, current	$ 270	$ 780
Operating loss carryforwards	3,055
Other Assets
Operating Loss Carryforwards [Line Items]
Current tax receivable	25,520	10,403
Deferred tax asset	$ 4,663	$ 1,433

Income Taxes - Income Tax Expen

Income Taxes - Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income tax expense (benefit):
Current									$ 23,587	$ 16,068	$ 8,189
Deferred									(9,384)	9,053	2,707
Total income tax expense	$ 4,702	$ 6,198	$ 3,987	$ (684)	$ 8,168	$ 7,595	$ 7,369	$ 1,989	$ 14,203	$ 25,121	$ 10,896

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Statutory Rate (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Federal incomes tax expense rate at 21% for December 31, 2020, 2019 and 2018									$ 18,498	$ 24,330	$ 10,550
Bank-owned life insurance									(407)	(422)	(124)
Non-deductible transaction costs									0	308	727
Tax exempt interest income									(452)	(391)	(169)
Impact of IRS Settlement									0	(1,556)	0
Deferred tax true up									(1,181)	0	0
Deferred tax asset re-measurement due to the Tax Act									0	0	34
162(m) Disallowance									65	1,512	0
State Taxes									902	760	110
Excess benefit on share-based compensation									(1,435)	205	(248)
Net Operating Loss ("NOL") Carryback									(1,799)	0	0
Other									12	375	16
Total income tax expense	$ 4,702	$ 6,198	$ 3,987	$ (684)	$ 8,168	$ 7,595	$ 7,369	$ 1,989	$ 14,203	$ 25,121	$ 10,896
Effective tax rate (in percent)									16.10%	21.70%	21.70%

Income Taxes - Components of De

Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Allowance for credit losses	$ 24,324	$ 6,232
Equity compensation	3,390	3,703
Purchase premium/loan discounts	2,945	9,347
Lease liability	3,276	2,960
Purchase securities	2,905	2,945
Other	3,901	3,930
Total deferred tax assets	40,741	29,117
Deferred tax liabilities:
Intangibles	11,911	13,527
Bank premises and equipment	4,036	4,811
ROU asset	3,124	2,773
Net unrealized gain on available for sale debt securities and derivative instruments	14,944	4,669
Other	2,063	1,904
Total deferred tax liabilities	36,078	27,684
Net deferred tax asset	$ 4,663	$ 1,433

Income Taxes - Unrecognized Tax

Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits at the beginning of the year:	$ 0	$ 0	$ 0
Gross increases, related to tax positions taken in a prior period	281	2,155	0
Gross increases, related to tax positions taken in current period	268	0	0
Settlement with taxing authority	0	(2,155)	0
Unrecognized tax benefits at the end of the year	$ 549	$ 0	$ 0

Commitments and Contingencies C

Commitments and Contingencies Commitments and Contingencies - Qualified Housing (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Qualified affordable housing investment	$ 2,899	$ 3,292
Qualified affordable housing project investments, unfunded commitment	362	$ 1,091
Qualified Affordable Housing Investment
Other Commitments [Line Items]
2021	132
2022	26
2023	26
2024	37
2025	51
Thereafter	90
Total	$ 362

Fair Value Disclosures - Recurr

Fair Value Disclosures - Recurring Basis (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Assets:
Available for sale debt securities	$ 1,024,329,000	$ 964,365,000
Equity securities	11,363,000	11,122,000
Loans held for investment, Paycheck Protection Program ("PPP") loans, carried at fair value	358,042,000	0
Derivative asset, fair value	28,482,000	4,967,000
Derivative liability, fair value	13,923,000	1,936,000
Recurring
Assets:
Available for sale debt securities	1,024,329,000	964,365,000
Equity securities	11,363,000	11,122,000
Loans held for investment, Paycheck Protection Program ("PPP") loans, carried at fair value	358,042,000
Loans held for sale	6,681,000	10,068,000
Transfer of assets from Level 2 to Level 3	0	0
Transfer of assets from Level 3 to Level 2	0	0
Recurring | Level 1
Assets:
Available for sale debt securities	0	0
Equity securities	11,363,000	11,122,000
Loans held for investment, Paycheck Protection Program ("PPP") loans, carried at fair value	0
Loans held for sale	0	0
Recurring | Level 2
Assets:
Available for sale debt securities	1,024,329,000	964,365,000
Equity securities	0	0
Loans held for investment, Paycheck Protection Program ("PPP") loans, carried at fair value	358,042,000
Loans held for sale	6,681,000	10,068,000
Recurring | Level 3
Assets:
Available for sale debt securities	0	0
Equity securities	0	0
Loans held for investment, Paycheck Protection Program ("PPP") loans, carried at fair value	0
Loans held for sale	0	0
Interest rate swap | Recurring
Assets:
Derivative liability, fair value	2,255,000
Interest rate swap | Recurring | Level 1
Assets:
Derivative liability, fair value	0
Interest rate swap | Recurring | Level 2
Assets:
Derivative liability, fair value	2,255,000
Interest rate swap | Recurring | Level 3
Assets:
Derivative liability, fair value	0
Interest rate swap | Financial institution counterparty: | Recurring
Assets:
Derivative asset, fair value	17,543,000	105,000
Derivative liability, fair value	11,666,000	4,736,000
Interest rate swap | Financial institution counterparty: | Recurring | Level 1
Assets:
Derivative asset, fair value	0	0
Derivative liability, fair value	0	0
Interest rate swap | Financial institution counterparty: | Recurring | Level 2
Assets:
Derivative asset, fair value	17,543,000	105,000
Derivative liability, fair value	11,666,000	4,736,000
Interest rate swap | Financial institution counterparty: | Recurring | Level 3
Assets:
Derivative asset, fair value	0	0
Derivative liability, fair value	0	0
Interest rate swap | Commercial customer counterparty: | Recurring
Assets:
Derivative asset, fair value	10,937,000	4,393,000
Derivative liability, fair value		84,000
Interest rate swap | Commercial customer counterparty: | Recurring | Level 1
Assets:
Derivative asset, fair value	0	0
Derivative liability, fair value		0
Interest rate swap | Commercial customer counterparty: | Recurring | Level 2
Assets:
Derivative asset, fair value	10,937,000	4,393,000
Derivative liability, fair value		84,000
Interest rate swap | Commercial customer counterparty: | Recurring | Level 3
Assets:
Derivative asset, fair value	0	0
Derivative liability, fair value		0
Interest rate caps and collars | Financial institution counterparty: | Recurring
Assets:
Derivative asset, fair value	1,000	11,000
Derivative liability, fair value	1,000	11,000
Interest rate caps and collars | Financial institution counterparty: | Recurring | Level 1
Assets:
Derivative asset, fair value	0	0
Derivative liability, fair value	0	0
Interest rate caps and collars | Financial institution counterparty: | Recurring | Level 2
Assets:
Derivative asset, fair value	1,000	11,000
Derivative liability, fair value	1,000	11,000
Interest rate caps and collars | Financial institution counterparty: | Recurring | Level 3
Assets:
Derivative asset, fair value	0	0
Derivative liability, fair value	$ 0	0
Interest rate floor | Financial institution counterparty: | Recurring
Assets:
Derivative asset, fair value		3,353,000
Interest rate floor | Financial institution counterparty: | Recurring | Level 1
Assets:
Derivative asset, fair value		0
Interest rate floor | Financial institution counterparty: | Recurring | Level 2
Assets:
Derivative asset, fair value		3,353,000
Interest rate floor | Financial institution counterparty: | Recurring | Level 3
Assets:
Derivative asset, fair value		$ 0

Fair Value Disclosures - Non-re

Fair Value Disclosures - Non-recurring Basis (Details)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)property
Assets:
Impaired loans, specific allowance		$ 1,602,000
Number of properties (OREO) | property		4
Non-recurring
Assets:
Collateral dependent loans with an ACL	$ 2,386,000	$ 4,504,000
Servicing assets with a valuation allowance	2,975,000
Other real estate owned		5,995,000
Collateral dependent loans with an ACL, gross	7,115,000
Impaired loans, specific allowance	4,729,000	1,602,000
Servicing asset at fair value, gross	3,531,000
Valuation allowance for servicing asset	556,000
Liabilities measured at fair value	0	0
Non-recurring | Level 1
Assets:
Collateral dependent loans with an ACL	0	0
Servicing assets with a valuation allowance	0
Other real estate owned		0
Non-recurring | Level 2
Assets:
Collateral dependent loans with an ACL	0	0
Servicing assets with a valuation allowance	0
Other real estate owned		0
Non-recurring | Level 3
Assets:
Collateral dependent loans with an ACL	2,386,000	4,504,000
Servicing assets with a valuation allowance	$ 2,975,000
Other real estate owned		$ 5,995,000

Fair Value Disclosures - Financ

Fair Value Disclosures - Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Estimated fair values and carrying values of all financial instruments
Maximum maturity period for Federal Home Loan Bank advances recorded at carrying value	90 days
Financial assets:
Held-to-maturity debt securities	$ 34,283	$ 34,810
Equity securities without readily determinable fair value	3,575	3,575
Federal Home Loan Bank ("FHLB") and Federal Reserve Bank ("FRB") stock	71,236	68,348
Financial liabilities:
Subordinated debentures and subordinated notes	262,778	145,571
Carrying Amount
Financial assets:
Cash and cash equivalents	230,825	251,550
Held-to-maturity debt securities	30,872	32,965
Loans held for sale	14,733	4,012
Loans held for investment(2)		5,921,205
Accrued interest receivable	23,798	19,508
Bank-owned life insurance	82,855	80,915
Servicing asset	388	3,113
Equity securities without readily determinable fair value	3,575	3,575
Federal Home Loan Bank ("FHLB") and Federal Reserve Bank ("FRB") stock	71,236	68,348
Financial liabilities:
Deposits	6,512,846	5,894,350
Advances from FHLB	777,718	677,870
Accrued interest payable	2,665	5,893
Subordinated debentures and subordinated notes	262,778	145,571
Securities sold under agreement to repurchase	2,225	2,353
Level 1 | Total Fair Value
Financial assets:
Cash and cash equivalents	0	0
Held-to-maturity debt securities	0	0
Loans held for sale	0	0
Loans held for investment(2)		0
Accrued interest receivable	0	0
Bank-owned life insurance	0	0
Servicing asset	0	0
Financial liabilities:
Deposits	0	0
Advances from FHLB	0	0
Accrued interest payable	0	0
Subordinated debentures and subordinated notes	0	0
Securities sold under agreement to repurchase	0	0
Level 2 | Total Fair Value
Financial assets:
Cash and cash equivalents	230,825	251,550
Held-to-maturity debt securities	34,283	34,810
Loans held for sale	14,733	4,012
Loans held for investment(2)		0
Accrued interest receivable	23,798	19,508
Bank-owned life insurance	82,855	80,915
Servicing asset	486	3,113
Financial liabilities:
Deposits	6,608,849	5,692,217
Advances from FHLB	782,321	708,692
Accrued interest payable	2,665	5,893
Subordinated debentures and subordinated notes	262,778	145,571
Securities sold under agreement to repurchase	2,199	2,353
Level 3 | Total Fair Value
Financial assets:
Cash and cash equivalents	0	0
Held-to-maturity debt securities	0	0
Loans held for sale	0	0
Loans held for investment(2)		5,899,945
Accrued interest receivable	0	0
Bank-owned life insurance	0	0
Servicing asset	0	0
Financial liabilities:
Deposits	0	0
Advances from FHLB	0	0
Accrued interest payable	0	0
Subordinated debentures and subordinated notes	0	0
Securities sold under agreement to repurchase	0	$ 0
Real Estate, Commercial and Consumer Portfolio Segments | Carrying Amount
Financial assets:
Loans held for investment(2)	6,317,986
Real Estate, Commercial and Consumer Portfolio Segments | Level 1 | Total Fair Value
Financial assets:
Loans held for investment(2)	0
Real Estate, Commercial and Consumer Portfolio Segments | Level 2 | Total Fair Value
Financial assets:
Loans held for investment(2)	0
Real Estate, Commercial and Consumer Portfolio Segments | Level 3 | Total Fair Value
Financial assets:
Loans held for investment(2)	$ 6,335,402

Off-Balance Sheet Loan Commit_3

Off-Balance Sheet Loan Commitments - Financial Instruments Approximate Value (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financial instruments with off-balance sheet risk
Total commitments	$ 3,142,601	$ 1,977,546
Commitments to extend credit
Financial instruments with off-balance sheet risk
Total commitments	2,743,571	1,602,891
Mortgage warehouse commitments
Financial instruments with off-balance sheet risk
Total commitments	354,603	347,459
Standby and commercial letters of credit
Financial instruments with off-balance sheet risk
Total commitments	$ 44,427	$ 27,196

Off-Balance Sheet Loan Commit_4

Off-Balance Sheet Loan Commitments - Allowance for Unfunded Commitments (Details) - USD ($) $ in Thousands	3 Months Ended				12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Allowance for Unfunded Commitments [Roll Forward]
Beginning balance for allowance for credit losses on unfunded commitments				$ 878	$ 878	$ 878
Impact of CECL adoption					840	0
Provision for credit losses on unfunded commitments	$ 902	$ 1,447	$ 2,799	$ 3,881	9,029	0	$ 0
Ending balance of allowance for credit losses on unfunded commitments	$ 10,747				$ 10,747	$ 878	$ 878

Derivative Financial Instrume_3

Derivative Financial Instruments - Balance Sheet Information (Details) - USD ($)	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019	May 31, 2019
Derivative [Line Items]
Notional Amount	$ 1,441,668,000		$ 899,974,000
Offsetting derivative assets/liabilities	1,000		(2,895,000)
Asset Derivative
Gross derivatives	28,482,000		4,967,000
Liability Derivative
Gross derivatives	13,923,000		1,936,000
Interest rate swaps
Derivative [Line Items]
Notional Amount		$ 500,000
Interest rate swap 2
Derivative [Line Items]
Notional Amount		$ 250,000
Designated as hedging instrument
Derivative [Line Items]
Notional Amount	750,000,000		275,000,000
Asset Derivative
Gross derivatives	17,543,000		3,353,000
Liability Derivative
Gross derivatives	2,255,000		0
Designated as hedging instrument | Interest rate floor
Derivative [Line Items]
Notional Amount	0		275,000,000	$ 275,000,000
Asset Derivative
Gross derivatives	0		3,353,000
Liability Derivative
Gross derivatives	0		0
Designated as hedging instrument | Interest rate swaps
Derivative [Line Items]
Notional Amount	500,000,000		0
Asset Derivative
Gross derivatives	17,543,000		0
Liability Derivative
Gross derivatives	0		0
Designated as hedging instrument | Interest rate swap 2
Derivative [Line Items]
Notional Amount	250,000,000		0
Asset Derivative
Gross derivatives	0		0
Liability Derivative
Gross derivatives	2,255,000		0
Non-hedging derivatives
Derivative [Line Items]
Notional Amount	691,668,000		624,974,000
Asset Derivative
Gross derivatives	10,938,000		4,509,000
Liability Derivative
Gross derivatives	11,667,000		4,831,000
Financial institution counterparty: | Non-hedging derivatives | Interest rate swaps
Derivative [Line Items]
Notional Amount	303,918,000		222,394,000
Asset Derivative
Gross derivatives	0		105,000
Liability Derivative
Gross derivatives	11,666,000		4,736,000
Financial institution counterparty: | Non-hedging derivatives | Interest rate caps and collars
Derivative [Line Items]
Notional Amount	41,916,000		90,093,000
Asset Derivative
Gross derivatives	1,000		11,000
Liability Derivative
Gross derivatives	0		0
Commercial customer counterparty: | Non-hedging derivatives | Interest rate swaps
Derivative [Line Items]
Notional Amount	303,918,000		222,394,000
Asset Derivative
Gross derivatives	10,937,000		4,393,000
Liability Derivative
Gross derivatives	0		84,000
Commercial customer counterparty: | Non-hedging derivatives | Interest rate caps and collars
Derivative [Line Items]
Notional Amount	41,916,000		90,093,000
Asset Derivative
Gross derivatives	0		0
Liability Derivative
Gross derivatives	$ 1,000		$ 11,000

Derivative Financial Instrume_4

Derivative Financial Instruments - AOCI Reclassification (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Designated as hedging instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net gain (loss) recognized in other comprehensive income on derivative		$ 11,265	$ 1,497
Gain (loss) reclassified from accumulated other comprehensive income into income	$ 1,332		(808)
Interest rate floor | Interest Income | Designated as hedging instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net gain (loss) recognized in other comprehensive income on derivative		(813)	1,497
Gain (loss) reclassified from accumulated other comprehensive income into income		1,937	(808)
Interest rate swaps | Interest Expense | Designated as hedging instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net gain (loss) recognized in other comprehensive income on derivative		13,859	0
Gain (loss) reclassified from accumulated other comprehensive income into income		0	0
Interest Rate Swap 2 | Interest Expense | Designated as hedging instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net gain (loss) recognized in other comprehensive income on derivative		(1,781)	0
Gain (loss) reclassified from accumulated other comprehensive income into income		(605)	0
Interest rate caps and collars | Non-hedging derivatives
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments and Tax		$ 2,481	$ 550

Derivative Financial Instrume_5

Derivative Financial Instruments - Narrative (Details) - USD ($)	1 Months Ended
	May 31, 2019	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount		$ 1,441,668,000		$ 899,974,000
Designated as hedging instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount		750,000,000		275,000,000
Interest rate swaps
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount			$ 500,000
Interest rate swaps | Designated as hedging instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount		500,000,000		0
Interest Rate Swap 2
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount			$ 250,000
Interest Rate Swap 2 | Designated as hedging instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount		250,000,000		0
Interest rate floor
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Term of contract	2 years
Floor interest rate	2.43%
Interest rate floor | Designated as hedging instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	$ 275,000,000	$ 0		$ 275,000,000

Derivative Financial Instrume_6

Derivative Financial Instruments - Summary of Interest Rate Swaps Outstanding (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Mar. 31, 2020
Derivative [Line Items]
Notional Amount	$ 1,441,668,000	$ 899,974,000
Interest rate swaps
Derivative [Line Items]
Notional Amount			$ 500,000
Non-hedging derivatives
Derivative [Line Items]
Notional Amount	691,668,000	624,974,000
Non-hedging derivatives | Financial institution counterparty: | Interest rate swaps
Derivative [Line Items]
Notional Amount	$ 303,918,000	$ 222,394,000
Maturity (in years)	4 years 1 month 6 days	3 years 3 months 18 days
Fair Value	$ (11,666,000)	$ (4,632,000)
Non-hedging derivatives | Financial institution counterparty: | Interest rate caps and collars
Derivative [Line Items]
Notional Amount	$ 41,916,000	$ 90,093,000
Maturity (in years)	1 year 7 months 6 days	1 year 6 months
Fair Value	$ 1,000	$ 11,000
Non-hedging derivatives | Commercial customer counterparty: | Interest rate swaps
Derivative [Line Items]
Notional Amount	$ 303,918,000	$ 222,394,000
Maturity (in years)	4 years 1 month 6 days	3 years 3 months 18 days
Fair Value	$ 10,937,000	$ 4,309,000
Non-hedging derivatives | Commercial customer counterparty: | Interest rate caps and collars
Derivative [Line Items]
Notional Amount	$ 41,916,000	$ 90,093,000
Maturity (in years)	1 year 7 months 6 days	1 year 6 months
Fair Value	$ (1,000)	$ (11,000)
Prime Rate | Non-hedging derivatives | Financial institution counterparty: | Interest rate swaps
Derivative [Line Items]
Floating Rate	0.25%	25.00%
Prime Rate | Non-hedging derivatives | Commercial customer counterparty: | Interest rate swaps
Derivative [Line Items]
Floating Rate	0.25%	25.00%
Minimum | Non-hedging derivatives | Financial institution counterparty: | Interest rate swaps
Derivative [Line Items]
Fixed Rate	3.14%	2.944%
Minimum | Non-hedging derivatives | Financial institution counterparty: | Interest rate caps and collars
Derivative [Line Items]
Fixed Rate	3.00%	3.00%
Minimum | Non-hedging derivatives | Commercial customer counterparty: | Interest rate swaps
Derivative [Line Items]
Fixed Rate	3.14%	2.944%
Minimum | Non-hedging derivatives | Commercial customer counterparty: | Interest rate caps and collars
Derivative [Line Items]
Fixed Rate	2.50%	2.43%
Minimum | London Interbank Offered Rate (LIBOR) | Non-hedging derivatives | Financial institution counterparty: | Interest rate swaps
Derivative [Line Items]
Floating Rate	0.00%	0.00%
Minimum | London Interbank Offered Rate (LIBOR) | Non-hedging derivatives | Financial institution counterparty: | Interest rate caps and collars
Derivative [Line Items]
Floating Rate	0.00%	0.00%
Minimum | London Interbank Offered Rate (LIBOR) | Non-hedging derivatives | Commercial customer counterparty: | Interest rate swaps
Derivative [Line Items]
Floating Rate	0.00%	0.00%
Minimum | London Interbank Offered Rate (LIBOR) | Non-hedging derivatives | Commercial customer counterparty: | Interest rate caps and collars
Derivative [Line Items]
Floating Rate	0.00%
Maximum | Non-hedging derivatives | Financial institution counterparty: | Interest rate swaps
Derivative [Line Items]
Fixed Rate	8.47%
Maximum | Non-hedging derivatives | Financial institution counterparty: | Interest rate caps and collars
Derivative [Line Items]
Fixed Rate	5.00%	5.80%
Maximum | Non-hedging derivatives | Commercial customer counterparty: | Interest rate swaps
Derivative [Line Items]
Fixed Rate	8.47%	8.47%
Maximum | Non-hedging derivatives | Commercial customer counterparty: | Interest rate caps and collars
Derivative [Line Items]
Fixed Rate	3.00%	5.80%
Maximum | London Interbank Offered Rate (LIBOR) | Non-hedging derivatives | Financial institution counterparty: | Interest rate swaps
Derivative [Line Items]
Floating Rate	5.00%	5.00%
Maximum | London Interbank Offered Rate (LIBOR) | Non-hedging derivatives | Financial institution counterparty: | Interest rate caps and collars
Derivative [Line Items]
Floating Rate	2.50%	3.75%
Maximum | London Interbank Offered Rate (LIBOR) | Non-hedging derivatives | Commercial customer counterparty: | Interest rate swaps
Derivative [Line Items]
Floating Rate	5.00%	5.00%

Employee Benefits (Details)

Employee Benefits (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Retirement Benefits [Abstract]
Matching contributions to 401(k) profit sharing Plan	$ 3,210,000	$ 2,896,000
Compensation expense	$ 0	$ 0	$ 863,000

Stock and Incentive Plans - 201

Stock and Incentive Plans - 2010 Plan (Details) - 2010 Stock Option and Equity Incentive Plan - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)				1,000,000
Stock based compensation expense	$ 0	$ 3	$ 27
Restricted shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)				100,000
Term of continuous service for vesting awards (in years)	4 years
Stock option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)				900,000
Term of continuous service for vesting awards (in years)	5 years
Contractual terms for non-controlling participants (in years)	10 years
Performance-based stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)				500,000

Stock and Incentive Plans - 2_2

Stock and Incentive Plans - 2010 Plan - Options (Details) - Nonperformance-based stock options - 2010 Stock Option and Equity Incentive Plan - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Shares Underlying Options
Outstanding at beginning of period (in shares)	257,500	275,000	305,000
Exercised (in shares)	(237,500)	(17,500)	(30,000)
Outstanding at the end of period (in shares)	20,000	257,500	275,000	305,000
Weighted Average Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 10.28	$ 10.12	$ 10.16
Exercised (in dollars per share)	10.12	10.24	10.61
Outstanding at the end of period (in dollars per share)	$ 10.09	$ 10.28	$ 10.12	$ 10.16
Weighted Average Remaining Contractual Term
Outstanding at beginning of year, term (in years)	1 year 21 days	1 year 4 months 13 days	2 years 4 months 20 days	3 years 7 months 2 days
Aggregate Intrinsic Value
Exercised
Aggregate intrinsic value of outstanding stock options (in dollars)	374,000
Unrecognized compensation expense (in dollars)	$ 0	$ 0	$ 3,000

Stock and Incentive Plans - 2_3

Stock and Incentive Plans - 2010 Plan - Restricted Stock Units (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Restricted stock units | 2010 Stock Option and Equity Incentive Plan
Activity in shares
Nonvested at the beginning of the period (in shares)	0	0	24,250
Forfeited (in shares)			(500)
Vested into shares (in shares)			(23,750)
Nonvested at the end of the period (in shares)	0	0	0
Weighted Average Exercise Price
Nonvested at the beginning of the period (in dollars per share)	$ 0	$ 0	$ 13.19
Forfeited (in dollars per share)			10.85
Vested into shares (in dollars per share)			12.14
Nonvested at the end of the period (in dollars per share)	$ 0	$ 0	$ 0
Unrecognized compensation expense (in dollars)	$ 0	$ 0	$ 0
Restricted stock units | 2019 Amended Plan
Weighted Average Exercise Price
Unrecognized compensation expense (in dollars)	8,222,000	4,329,000	3,430,000
Non Performance Based Stock Options | 2010 Stock Option and Equity Incentive Plan
Weighted Average Exercise Price
Unrecognized compensation expense (in dollars)	$ 0	$ 0	$ 3,000
Non-Performance Based Restricted Stock Units | 2019 Amended Plan
Activity in shares
Nonvested at the beginning of the period (in shares)	175,688	133,455	150,722
Forfeited (in shares)	(1,579)		(3,929)
Vested into shares (in shares)	(93,377)	(250,965)	(73,988)
Nonvested at the end of the period (in shares)	441,132	175,688	133,455
Weighted Average Exercise Price
Nonvested at the beginning of the period (in dollars per share)	$ 21.65	$ 19.67	$ 13.29
Forfeited (in dollars per share)	29.13		26.29
Vested into shares (in dollars per share)	24.73	22.29	24.44
Nonvested at the end of the period (in dollars per share)	$ 20.39	$ 21.65	$ 19.67
Performance Based Restricted Stock Units | 2019 Amended Plan
Activity in shares
Nonvested at the beginning of the period (in shares)	63,727	63,988	53,594
Forfeited (in shares)		(19,972)	(1,766)
Vested into shares (in shares)	(1,841)	(51,284)	(28,109)
Nonvested at the end of the period (in shares)	100,195	63,727	63,988
Weighted Average Exercise Price
Nonvested at the beginning of the period (in dollars per share)	$ 22.76	$ 21.28	$ 17.68
Forfeited (in dollars per share)		21.38	27.59
Vested into shares (in dollars per share)	19.69	25.31	18.69
Nonvested at the end of the period (in dollars per share)	$ 23.20	$ 22.76	$ 21.28

Stock and Incentive Plans - Ves

Stock and Incentive Plans - Vesting (Details)	12 Months Ended
	Dec. 31, 2020companyinstallment	Dec. 31, 2019installment
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, installments	3
Number of peer companies | company	15
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, installments		3
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, installments		5
Performance Based Restricted Stock Units | Below the 24.9th percentile of Peer Group TSR
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of total stockholder return relative to peer companies	24.90%
Vesting %	0.00%
Performance Based Restricted Stock Units | Within the 25th to 49.9th percentile of Peer Group TSR
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting %	50.00%
Performance Based Restricted Stock Units | Within the 50th the 74.9th percentile of Peer Group TSR
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting %	100.00%
Performance Based Restricted Stock Units | At or above the 75th percentile of Peer Group TSR
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of total stockholder return relative to peer companies	75.00%
Vesting %	150.00%
Performance Based Restricted Stock Units | Minimum | Within the 25th to 49.9th percentile of Peer Group TSR
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of total stockholder return relative to peer companies	25.00%
Performance Based Restricted Stock Units | Minimum | Within the 50th the 74.9th percentile of Peer Group TSR
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of total stockholder return relative to peer companies	50.00%
Performance Based Restricted Stock Units | Maximum | Within the 25th to 49.9th percentile of Peer Group TSR
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of total stockholder return relative to peer companies	49.90%
Performance Based Restricted Stock Units | Maximum | Within the 50th the 74.9th percentile of Peer Group TSR
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of total stockholder return relative to peer companies	74.90%

Stock and Incentive Plans - Omn

Stock and Incentive Plans - Omnibus Plan Black Scholes Assumptions - (Details) - Omnibus Plan and Veritex Green Plan	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Assumptions used to measure fair value of each option award estimated on grant date using Black-Scholes option-pricing model
Dividend yield			0.00%
Expected volatility, minimum (as a percent)	27.49%	28.85%	27.87%
Expected volatility, maximum (as a percent)	42.37%	29.65%	37.55%
Risk-free interest rate, minimum (as a percent)	0.36%	1.53%	1.06%
Risk-free interest rate, maximum (as a percent)	1.76%	2.51%	2.94%
Minimum
Assumptions used to measure fair value of each option award estimated on grant date using Black-Scholes option-pricing model
Dividend yield	2.33%	1.73%
Expected life	5 years	4 years 6 months 7 days	5 years
Maximum
Assumptions used to measure fair value of each option award estimated on grant date using Black-Scholes option-pricing model
Dividend yield	5.14%	2.01%
Expected life	6 years 6 months 3 days	7 years 6 months 3 days	7 years 6 months

Stock and Incentive Plans - Sto

Stock and Incentive Plans - Stock Compensation Expense and Liability Award Compensation Expense (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Veritex Green Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 1,903,000	$ 1,525,000
2019 Amended Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 6,080,000	3,044,000
Number of shares authorized (in shares)	1,500,000
Liability Awards | 2019 Amended Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 0
Expensed and capitalized amount		$ 1,403,000

Stock and Incentive Plans - O_2

Stock and Incentive Plans - Omnibus Plan - Options (Details) - 2019 Amended Plan - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Nonperformance-based stock options
Shares Underlying Options
Outstanding at beginning of period (in shares)	849,768	449,520	330,723
Granted during the period (in shares)	185,025	200,561	137,576
Conversion to equity awards (in shares)		253,633
Forfeited (in shares)	(25,053)	(41,336)	(4,083)
Exercised (in shares)	(33,939)	(12,610)	(14,696)
Outstanding at the end of period (in shares)	975,801	849,768	449,520	330,723
Options exercisable at end of period (in shares)	491,704
Weighted Average Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 23.61	$ 24.47	$ 22.71
Granted during the period (in dollars per share)	26.73	22.72	28.04
Conversion to equity awards (in dollars per share)		21.38
Forfeited (in dollars per share)	27.37	25.51	27.59
Exercised (in dollars per share)	19.10	15.42	15.29
Outstanding at the end of period (in dollars per share)	24.26	$ 23.61	$ 24.47	$ 22.71
Options exercisable at end of period (in dollars per share)	24.25
Weighted average fair value of options granted during the period (in dollars per share)	$ 6.37
Weighted Average Remaining Contractual Term
Outstanding at beginning of year, term (in years)	7 years 5 months 12 days	8 years 2 months 26 days	8 years 2 months 26 days	8 years 10 months 9 days
Exercisable, term (in years)	6 years 4 months 24 days
Aggregate Intrinsic Value
Aggregate intrinsic value of outstanding stock options (in dollars)	$ 2,422,000
Options exercisable, intrinsic value	$ 1,199,000
Liability Non Performance Based Stock Options
Shares Underlying Options
Outstanding at beginning of period (in shares)	0	0	0
Granted during the period (in shares)	0	253,633	0
Conversion to equity awards (in shares)		(253,633)
Forfeited (in shares)	0	0	0
Exercised (in shares)	0	0	0
Outstanding at the end of period (in shares)	0	0	0	0
Options exercisable at end of period (in shares)	0
Weighted Average Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 0	$ 0	$ 0
Granted during the period (in dollars per share)	0	21.38	0
Conversion to equity awards (in dollars per share)		21.38
Forfeited (in dollars per share)	0	0	0
Exercised (in dollars per share)	0	0	0
Outstanding at the end of period (in dollars per share)	0	$ 0	$ 0	$ 0
Options exercisable at end of period (in dollars per share)	0
Weighted average fair value of options granted during the period (in dollars per share)	$ 0
Aggregate Intrinsic Value
Aggregate intrinsic value of outstanding stock options (in dollars)	$ 0
Options exercisable, intrinsic value	0
Unrecognized compensation expense (in dollars)	0
Stock option
Aggregate Intrinsic Value
Unrecognized compensation expense (in dollars)	$ 2,470,000	$ 2,948,000	$ 2,103,000
Requisite service period to recognize compensation cost (in years)	2 years 7 months 24 days

Stock and Incentive Plans - O_3

Stock and Incentive Plans - Omnibus Plan - Restricted Stock Units (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Non-Performance Based Restricted Stock Units | 2019 Amended Plan
Shares Underlying Options
Nonvested at the beginning of the period (in shares)	175,688	133,455	150,722
Granted (in shares)	360,400	127,459	60,650
Conversion to equity awards (in shares)		165,739
Vested into shares (in shares)	(93,377)	(250,965)	(73,988)
Forfeited (in shares)	(1,579)		(3,929)
Nonvested at the end of the period (in shares)	441,132	175,688	133,455
Weighted Average Exercise Price
Nonvested at the beginning of the period (in dollars per share)	$ 21.65	$ 19.67	$ 13.29
Granted (in dollars per share)	20.38	22.44	29.27
Conversion to equity awards (in dollars per share)		21.38
Vested into shares (in dollars per share)	24.73	22.29	24.44
Forfeited (in dollars per share)	29.13		26.29
Nonvested at the end of the period (in dollars per share)	$ 20.39	$ 21.65	$ 19.67
Non-performance based liability restricted stock units | 2019 Amended Plan
Shares Underlying Options
Nonvested at the beginning of the period (in shares)	0	0	0
Granted (in shares)	0	165,739	0
Conversion to equity awards (in shares)		(165,739)
Vested into shares (in shares)	0	0	0
Forfeited (in shares)	0		0
Nonvested at the end of the period (in shares)	0	0	0
Weighted Average Exercise Price
Nonvested at the beginning of the period (in dollars per share)	$ 0	$ 0	$ 0
Granted (in dollars per share)	0	21.38	0
Conversion to equity awards (in dollars per share)		21.38
Vested into shares (in dollars per share)	0	0	0
Forfeited (in dollars per share)	0		0
Nonvested at the end of the period (in dollars per share)	$ 0	$ 0	$ 0
Performance Based Restricted Stock Units | 2019 Amended Plan
Shares Underlying Options
Nonvested at the beginning of the period (in shares)	63,727	63,988	53,594
Granted (in shares)	39,398	38,746	40,269
Conversion to equity awards (in shares)		32,249
Vested into shares (in shares)	(1,841)	(51,284)	(28,109)
Forfeited (in shares)		(19,972)	(1,766)
Nonvested at the end of the period (in shares)	100,195	63,727	63,988
Weighted Average Exercise Price
Nonvested at the beginning of the period (in dollars per share)	$ 22.76	$ 21.28	$ 17.68
Granted (in dollars per share)	25.94	22.53	27.59
Conversion to equity awards (in dollars per share)		21.38
Vested into shares (in dollars per share)	19.69	25.31	18.69
Forfeited (in dollars per share)		21.38	27.59
Nonvested at the end of the period (in dollars per share)	$ 23.20	$ 22.76	$ 21.28
Performance Based Restricted Stock Units | Omnibus Plan
Shares Underlying Options
Forfeited (in shares)	(1,089)
Weighted Average Exercise Price
Forfeited (in dollars per share)	$ 19.69
Performance based restricted stock units | 2019 Amended Plan
Shares Underlying Options
Nonvested at the beginning of the period (in shares)	0	0	0
Granted (in shares)	0	32,249	0
Conversion to equity awards (in shares)		(32,249)
Vested into shares (in shares)	0	0	0
Forfeited (in shares)		0	0
Nonvested at the end of the period (in shares)	0	0	0
Weighted Average Exercise Price
Nonvested at the beginning of the period (in dollars per share)	$ 0	$ 0	$ 0
Granted (in dollars per share)	0	21.38	0
Conversion to equity awards (in dollars per share)		21.38
Vested into shares (in dollars per share)	0	0	0
Forfeited (in dollars per share)		0	0
Nonvested at the end of the period (in dollars per share)	$ 0	$ 0	$ 0
Performance based restricted stock units | Omnibus Plan
Shares Underlying Options
Forfeited (in shares)	0
Weighted Average Exercise Price
Forfeited (in dollars per share)	$ 0
Restricted stock units | 2019 Amended Plan
Additional disclosures
Unrecognized compensation expense (in dollars)	$ 8,222,000	$ 4,329,000	$ 3,430,000
Requisite service period to recognize compensation cost (in years)	2 years 7 months 9 days
Liability Restricted Stock Units | 2019 Amended Plan
Additional disclosures
Unrecognized compensation expense (in dollars)	$ 0

Stock and Incentive Plans - Fai

Stock and Incentive Plans - Fair Value Options Exercised or Restricted Stock Units Vested (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
2019 Amended Plan | Nonperformance-based stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonperformance-based stock options exercised	$ 954	$ 334	$ 383
2019 Amended Plan | Non-Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-performance based restricted stock units vested	2,529	6,113	2,128
2019 Amended Plan | Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-performance based restricted stock units vested	36	1,089	745
Veritex Green Omnibus Plan | Nonperformance-based stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonperformance-based stock options exercised	1,021	3,054
Veritex Green Omnibus Plan | Non-Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-performance based restricted stock units vested	828	0
Green Bancorp Inc. 2010 Stock Option Plan | Nonperformance-based stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonperformance-based stock options exercised	12,231	5,554
Green Bancorp Inc. 2006 Stock Option Plan | Nonperformance-based stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonperformance-based stock options exercised	0	345
2010 Stock Option and Equity Incentive Plan | Nonperformance-based stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonperformance-based stock options exercised	6,579	454	803
2010 Stock Option and Equity Incentive Plan | Non-Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-performance based restricted stock units vested	$ 0	$ 0	$ 713

Stock and Incentive Plans - Ver

Stock and Incentive Plans - Veritex Green Omnibus Plan Options (Details) - Veritex Green Omnibus Plan - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Nonperformance-based stock options
Shares Underlying Options
Outstanding at beginning of period (in shares)	386,969	0
Converted in acquisition of Green (in shares)		304,778
Granted during the period (in shares)	31,075	211,793
Forfeited (in shares)	(30,711)	(12,673)
Exercised (in shares)	(35,333)	(116,929)
Outstanding at the end of period (in shares)	352,000	386,969
Options exercisable at end of period (in shares)	209,844
Weighted Average Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 19.30	$ 0
Converted in acquisition of Green (in dollars per share)		15.41
Granted during the period (in dollars per share)	29.13	21.38
Forfeited (in dollars per share)	20.92	13.17
Exercised (in dollars per share)	19.42	13.60
Outstanding at the end of period (in dollars per share)	19.99	$ 19.30
Options exercisable at end of period (in dollars per share)	17.89
Weighted average fair value of options granted during the period (in dollars per share)	$ 9.56
Weighted Average Contractual Term
Outstanding at beginning of year, term (in years)	6 years 11 months 19 days
Exercisable, term (in years)	6 years 1 month 9 days
Aggregate Intrinsic Value
Aggregate intrinsic value of outstanding stock options (in dollars)	$ 2,124
Options exercisable, intrinsic value	1,642
Stock option
Aggregate Intrinsic Value
Unrecognized compensation expense (in dollars)	$ 626	$ 1,062
Requisite service period to recognize compensation cost (in years)	2 years 1 month 17 days

Stock and Incentive Plans - V_2

Stock and Incentive Plans - Veritex Green Omnibus Plan Restricted Stock Units (Details) - Veritex Green Omnibus Plan - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Non-Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Nonvested at the beginning of the period (in shares)	116,250	0
Number of shares awarded (in shares)	93,918		116,250
Vested into shares (in shares)	(38,744)
Forfeited (in shares)	(15,237)
Nonvested at the end of the period (in shares)	156,187	116,250	0
Weighted Average Exercise Price
Nonvested at the beginning of the period (in dollars per share)	$ 21.38	$ 0
Granted (in dollars per share)	21.36		$ 21.38
Vested (in dollars per share)	21.38
Forfeited (in dollars per share)	23.62
Nonvested at the end of the period (in dollars per share)	$ 22.64	$ 21.38	$ 0
Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Nonvested at the beginning of the period (in shares)	25,320	0
Number of shares awarded (in shares)	8,531	26,145
Forfeited (in shares)	(3,123)	(825)
Nonvested at the end of the period (in shares)	30,728	25,320	0
Weighted Average Exercise Price
Nonvested at the beginning of the period (in dollars per share)	$ 21.38	$ 0
Granted (in dollars per share)	25.94	21.38
Forfeited (in dollars per share)	19.69	21.38
Nonvested at the end of the period (in dollars per share)	$ 21.43	$ 21.38	$ 0
Restricted stock units
Weighted Average Exercise Price
Unrecognized compensation expense (in dollars)	$ 2,484	$ 1,991
Requisite service period to recognize compensation cost (in years)	2 years 7 days

Stock and Incentive Plans - Gre

Stock and Incentive Plans - Green Bancorp Inc. 2010 and 2006 Option Plan (Details)	12 Months Ended
	Dec. 31, 2020USD ($)$ / sharesshares	Dec. 31, 2019USD ($)plan$ / sharesshares
Weighted Average Exercise Price
Number of stock and incentive plans assumed in acquisition | plan		2
Green Bancorp Inc. 2010 Stock Option Plan | Nonperformance-based stock options
Shares Underlying Options
Outstanding at beginning of period (in shares) | shares	571,735	0
Converted in acquisition of Green (in shares) | shares		768,628
Forfeited (in shares) | shares		(6,241)
Exercised (in shares) | shares	(440,652)	(190,652)
Outstanding at the end of period (in shares) | shares	131,083	571,735
Weighted Average Exercise Price
Outstanding at beginning of period (in dollars per share) | $ / shares	$ 10.64	$ 0
Converted in acquisition of Green (in dollars per share) | $ / shares		10.73
Forfeited (in dollars per share) | $ / shares		13.69
Exercised (in dollars per share) | $ / shares	10.35	10.93
Outstanding at the end of period (in dollars per share) | $ / shares	$ 11.60	$ 10.64
Outstanding at beginning of year, term (in years)	4 years 10 months 24 days
Aggregate intrinsic value of outstanding stock options (in dollars) | $	$ 1,843,000
Unrecognized compensation expense (in dollars) | $	$ 0	$ 0
Green Bancorp Inc. 2006 Stock Option Plan | Nonperformance-based stock options
Shares Underlying Options
Outstanding at beginning of period (in shares) | shares	0
Converted in acquisition of Green (in shares) | shares	11,850
Exercised (in shares) | shares	(11,850)
Outstanding at the end of period (in shares) | shares	0	0
Weighted Average Exercise Price
Outstanding at beginning of period (in dollars per share) | $ / shares	$ 0
Converted in acquisition of Green (in dollars per share) | $ / shares	10.45
Exercised (in dollars per share) | $ / shares	10.45
Outstanding at the end of period (in dollars per share) | $ / shares	$ 0	$ 0
Unrecognized compensation expense (in dollars) | $	$ 0	$ 0

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Related Party Transactions [Abstract]
Financing Receivable with related parties	$ 34,944	$ 70,113
New advances to the Company's employees, officers, directors and their affiliates	12,477	42,163
Principal payments received from the loans to employees, officers, directors, and their affiliates	19,991	42,398
Unfunded commitments to related parties	13,191	17,180
Deposits received from related parties	$ 506,068	$ 70,986

Capital Requirements and Rest_3

Capital Requirements and Restrictions on Retained Earnings (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Total capital (to risk-weighted assets)
Actual Amount	$ 1,099,031	$ 1,099,031	$ 917,939
Actual Ratio (as a percent)	13.57%	13.57%	13.10%
For Capital Adequacy Purposes Amount	$ 647,918	$ 647,918	$ 560,573
For Capital Adequacy Purposes Ratio (as a percent)	8.00%	8.00%	8.00%
Tier 1 capital (to risk-weighted assets)
Actual Amount	$ 782,487	$ 782,487	$ 771,679
Actual Ratio (as a percent)	9.66%	9.66%	11.02%
For Capital Adequacy Purposes Amount	$ 486,017	$ 486,017	$ 420,152
For Capital Adequacy Purposes Ratio (as a percent)	6.00%	6.00%	6.00%
Common equity tier 1 (to risk-weighted assets)
Common Equity Tier One Capital	$ 753,261	$ 753,261	$ 742,675
Common Equity Tier One Capital Ratio (as a percent)	9.30%	9.30%	10.60%
Common Equity Tier One Capital Required for Capital Adequacy	$ 364,481	$ 364,481	$ 315,287
For Capital Adequacy Purposes Amount (as a percent)	4.50%	4.50%	4.50%
Tier 1 capital (to average assets)
Actual Amount	$ 782,487	$ 782,487	$ 771,679
Actual Ratio (as a percent)	9.43%	9.43%	10.17%
For Capital Adequacy Purposes Amount	$ 331,914	$ 331,914	$ 303,512
For Capital Adequacy Purposes Ratio (as a percent)	4.00%	4.00%	4.00%
Capital conservation buffer	3.95%	3.95%
Bank
Total capital (to risk-weighted assets)
Actual Amount	$ 968,481	$ 968,481	$ 870,838
Actual Ratio (as a percent)	11.96%	11.96%	12.44%
For Capital Adequacy Purposes Amount	$ 647,813	$ 647,813	$ 560,024
For Capital Adequacy Purposes Ratio (as a percent)	8.00%	8.00%	8.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 809,767	$ 809,767	$ 700,031
To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio (as a percent)	10.00%	10.00%	10.00%
Tier 1 capital (to risk-weighted assets)
Actual Amount	$ 884,471	$ 884,471	$ 840,126
Actual Ratio (as a percent)	10.92%	10.92%	12.00%
For Capital Adequacy Purposes Amount	$ 485,973	$ 485,973	$ 420,063
For Capital Adequacy Purposes Ratio (as a percent)	6.00%	6.00%	6.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 647,964	$ 647,964	$ 560,084
To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio (as a percent)	8.00%	8.00%	8.00%
Common equity tier 1 (to risk-weighted assets)
Common Equity Tier One Capital	$ 884,471	$ 884,471	$ 840,126
Common Equity Tier One Capital Ratio (as a percent)	10.92%	10.92%	12.00%
Common Equity Tier One Capital Required for Capital Adequacy	$ 364,480	$ 364,480	$ 315,047
For Capital Adequacy Purposes Amount (as a percent)	4.50%	4.50%	4.50%
Common Equity Tier One Capital Required to be Well-Capitalized	$ 526,471	$ 526,471	$ 455,068
To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio (as a percent)	6.50%	6.50%	6.50%
Tier 1 capital (to average assets)
Actual Amount	$ 884,471	$ 884,471	$ 840,126
Actual Ratio (as a percent)	10.66%	10.66%	11.07%
For Capital Adequacy Purposes Amount	$ 331,884	$ 331,884	$ 303,569
For Capital Adequacy Purposes Ratio (as a percent)	4.00%	4.00%	4.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 414,855	$ 414,855	$ 379,461
To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio (as a percent)	5.00%	5.00%	5.00%
Dividends paid to Holdco	$ 65,000	$ 56,750
Payments of dividends		$ 34,057	$ 26,796
Dividends paid (in dollars per share)		$ 0.17	$ 0.125

Parent Company Only Financial_3

Parent Company Only Financial Statements - Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
ASSETS
Cash and cash equivalents	$ 230,825	$ 251,550
Other assets	114,997	67,994
Total assets	8,820,871	7,954,937
LIABILITIES AND STOCKHOLDERS’ EQUITY
Securities sold under agreements to repurchase	2,225	2,353
Total liabilities	7,617,495	6,764,140
Stockholders’ equity:
Common stock	555	549
Additional paid-in capital	1,126,437	1,117,879
Retained earnings	172,232	147,911
Accumulated other comprehensive income	56,225	19,061
Treasury stock	(152,073)	(94,603)
Total stockholders’ equity	1,203,376	1,190,797	$ 530,638	$ 488,929
Total liabilities and stockholders’ equity	8,820,871	7,954,937
Veritex Holdings, Inc.
ASSETS
Cash and cash equivalents	129,969	45,563
Investment in subsidiaries	1,335,603	1,289,273
Other assets	4,638	2,780
Total assets	1,470,210	1,337,616
LIABILITIES AND STOCKHOLDERS’ EQUITY
Other liabilities	4,056	1,248
Securities sold under agreements to repurchase	262,778	145,571
Total liabilities	266,834	146,819
Stockholders’ equity:
Common stock	555	511
Additional paid-in capital	1,126,437	1,117,879
Retained earnings	172,232	147,911
Accumulated other comprehensive income	56,225	19,061
Treasury stock	(152,073)	(94,565)
Total stockholders’ equity	1,203,376	1,190,797
Total liabilities and stockholders’ equity	$ 1,470,210	$ 1,337,616

Parent Company Only Financial_4

Parent Company Only Financial Statements - Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Condensed Income Statements, Captions [Line Items]
Other									$ 3,320	$ 2,949	$ 855
Interest income	$ 78,100	$ 77,429	$ 79,342	$ 86,979	$ 91,742	$ 95,643	$ 96,177	$ 95,224	321,850	378,786	145,069
Salaries and employee benefits									79,453	72,791	31,138
Merger and acquisition expense									0	38,960	5,220
Other									14,192	13,712	5,371
Total noninterest expense	47,373	36,408	40,061	35,545	36,284	34,630	39,896	66,993	159,387	177,803	69,259
Income before income tax expense									88,086	115,860	50,237
Income tax expense	$ 4,702	$ 6,198	$ 3,987	$ (684)	$ 8,168	$ 7,595	$ 7,369	$ 1,989	14,203	25,121	10,896
Net income									73,883	90,739	39,341
Veritex Holdings, Inc.
Condensed Income Statements, Captions [Line Items]
Cash dividends from subsidiary									65,000	56,750	0
Excess of earnings over dividend from subsidiary									16,693	43,199	44,850
Other									53	50	20
Interest income									81,746	99,999	44,870
Interest on borrowings									8,529	4,672	974
Salaries and employee benefits									612	790	853
Merger and acquisition expense									0	4,942	3,886
Other									798	797	529
Total noninterest expense									9,939	11,201	6,242
Income before income tax expense									71,807	88,798	38,628
Income tax expense									(2,076)	(1,941)	(713)
Net income									$ 73,883	$ 90,739	$ 39,341

Parent Company Only Financial_5

Parent Company Only Financial Statements - Cash Flow (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities:
Net income	$ 73,883	$ 90,739	$ 39,341
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Net cash provided by operating activities	107,650	103,960	50,388
Cash flows from investing activities:
Net cash used in investing activities	(874,555)	(46,339)	(400,010)
Cash flows from financing activities:
Proceeds from issuance of subordinated notes, net of debt issuance costs paid	123,026	75,000	0
Proceeds from exercise of stock warrants	109	0	0
Redemption of subordinated debt	(11,307)	0	0
Proceeds from exercise of employee stock options	4,301	3,938	454
Payments to tax authorities for stock-based compensation	(3,829)	(1,346)	(593)
Proceeds from payments on ESOP loan	0	0	109
Offering costs paid in connection with acquisition	0	0	(899)
Purchase of treasury stock	(57,470)	(94,533)	0
Dividends paid	(34,057)	(26,796)	0
Net cash provided by financing activities	746,180	109,480	285,027
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	(20,725)	167,101	(64,595)
Cash and cash equivalents at beginning of year	251,550	84,449	149,044
Cash and cash equivalents at end of year	230,825	251,550	84,449
Veritex Holdings, Inc.
Cash flows from operating activities:
Net income	73,883	90,739	39,341
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Amortization of debt discount and debt issuance costs, net	1,263	2,353	2
Equity in undistributed net income of Bank	(16,693)	(43,199)	(44,850)
(Increase) decrease in other assets	(1,853)	(1,861)	2,226
Increase (decrease) in other liabilities	726	(5,024)	(2,042)
Net cash provided by operating activities	57,326	43,008	(5,323)
Cash flows from investing activities:
Net cash used in investing activities	0	5,818	0
Cash flows from financing activities:
Proceeds from issuance of subordinated notes, net of debt issuance costs paid	123,026	75,000	0
Net proceeds from sale of common stock in public offering	0	0	2
Proceeds from exercise of stock warrants	109	0	0
Redemption of subordinated debt	(5,000)	0	0
Proceeds from exercise of employee stock options	4,301	3,938	454
Proceeds from payments on ESOP loan	0	0	109
Offering costs paid in connection with acquisition	0	0	(899)
Purchase of treasury stock	(57,470)	(94,533)	0
Dividends paid	(34,057)	(26,796)	0
Net cash provided by financing activities	27,080	(43,737)	(927)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	84,406	5,089	(6,250)
Cash and cash equivalents at beginning of year	45,563	40,474	46,724
Cash and cash equivalents at end of year	129,969	45,563	40,474
Green Bancorp, Inc. | Veritex Holdings, Inc.
Cash flows from investing activities:
Net cash received in acquisition	$ 0	$ 5,818	$ 0

Summary of Quarterly Financia_3

Summary of Quarterly Financial Statements (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Interest income	$ 78,100	$ 77,429	$ 79,342	$ 86,979	$ 91,742	$ 95,643	$ 96,177	$ 95,224	$ 321,850	$ 378,786	$ 145,069
Interest expense	11,334	11,559	13,585	19,574	21,878	24,769	24,735	22,307	56,052	93,689	30,045
Net interest income	66,766	65,870	65,757	67,405	69,864	70,874	71,442	72,917	265,798	285,097	115,024
Provision for credit losses	0	8,692	16,172	31,776	3,493	9,674	3,335	5,012	56,640	21,514	6,603
Provision for credit losses on unfunded commitments	902	1,447	2,799	3,881					9,029	0	0
Noninterest income	9,012	9,795	21,290	7,247	7,132	8,430	6,034	8,484	47,344	30,080	11,075
Noninterest expense	47,373	36,408	40,061	35,545	36,284	34,630	39,896	66,993	159,387	177,803	69,259
Income tax expense (benefit)	4,702	6,198	3,987	(684)	8,168	7,595	7,369	1,989	14,203	25,121	10,896
Net income allocated to common stockholders	$ 22,801	$ 22,920	$ 24,028	$ 4,134	$ 29,051	$ 27,405	$ 26,876	$ 7,407	$ 73,883	$ 90,739	$ 39,341
Basic (in USD per share)	$ 0.46	$ 0.46	$ 0.48	$ 0.08	$ 0.56	$ 0.52	$ 0.50	$ 0.14	$ 1.48	$ 1.71	$ 1.63
Diluted (in USD per share)	$ 0.46	$ 0.46	$ 0.48	$ 0.08	$ 0.56	$ 0.51	$ 0.49	$ 0.13	$ 1.48	$ 1.68	$ 1.60

Subsequent Events (Details)

Subsequent Events (Details) - Subsequent Event - Interest rate swaps	Feb. 24, 2021USD ($)
Subsequent Event [Line Items]
Derivative, notional amount, terminated early	$ 500,000,000
Deferred gain (loss) on termination of cash flow hedge	$ 42,995,000
Amortization period of deferred gain (loss) on termination of cash flow hedge (in years)	10 years