Origin Bancorp (OBK) 10-Q 5 May 21 2021 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2021	Apr. 30, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2021
Document Transition Report	false
Entity File Number	001-38487
Entity Registrant Name	Origin Bancorp, Inc.
Entity Incorporation, State or Country Code	LA
Entity Tax Identification Number	72-1192928
Entity Address, Address Line One	500 South Service Road East
Entity Address, City or Town	Ruston
Entity Address, State or Province	LA
Entity Address, Postal Zip Code	71270
City Area Code	318
Local Phone Number	255-2222
Title of 12(b) Security	Common Stock, par value $5.00 per share
Trading Symbol	OBNK
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		23,488,884
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Entity CIK	0001516912
Current Fiscal Year End Date	--12-31

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Assets
Cash and due from banks	$ 64,330	$ 60,544
Interest-bearing deposits in banks	200,571	316,670
Total cash and cash equivalents	264,901	377,214
Securities:
Available for sale	980,132	1,004,674
Held to maturity, net allowance for credit losses of $66 at both March 31, 2021, and December 31, 2020 (fair value of $40,800 and $41,205 at March 31, 2021, and December 31, 2020, respectively)	37,983	38,128
Securities carried at fair value through income	11,077	11,554
Total securities	1,029,192	1,054,356
Non-marketable equity securities held in other financial institutions	47,274	62,586
Loans held for sale ($82,706 and $136,026 at fair value at March 31, 2021, and December 31, 2020, respectively)	144,950	191,512
Loans, net of allowance for credit losses of $85,136 and $86,670 at March 31, 2021, and December 31, 2020, respectively ($13,578 and $17,011 at fair value at March 31, 2021, and December 31, 2020, respectively)	5,764,624	5,638,103
Premises and equipment, net	81,064	81,763
Mortgage servicing rights	17,552	13,660
Cash surrender value of bank-owned life insurance	37,757	37,553
Goodwill and other intangible assets, net	30,246	30,480
Accrued interest receivable and other assets	145,615	141,041
Total assets	7,563,175	7,628,268
Liabilities and Stockholders' Equity
Noninterest-bearing deposits	1,736,534	1,607,564
Interest-bearing deposits	3,962,082	3,478,985
Time deposits	647,578	664,766
Total deposits	6,346,194	5,751,315
Federal Home Loan Bank ("FHLB") advances and other borrowings	325,751	984,608
Subordinated debentures, net	157,239	157,181
Accrued expenses and other liabilities	77,636	88,014
Total liabilities	6,906,820	6,981,118
Commitments and contingencies	0	0
Stockholders' equity:
Preferred stock, no par value, 2,000,000 shares authorized	0	0
Common stock ($5.00 par value; 50,000,000 shares authorized; 23,488,884 and 23,506,312 shares issued at March 31, 2021, and December 31, 2020, respectively)	117,444	117,532
Additional paid‑in capital	236,934	237,341
Retained earnings	289,792	266,628
Accumulated other comprehensive income	12,185	25,649
Total stockholders' equity	656,355	647,150
Total liabilities and stockholders' equity	$ 7,563,175	$ 7,628,268

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Municipal securities	$ 66	$ 66
Fair Value	40,800	41,205
Loans held for sale	82,706	136,026
Loans, allowance for credit losses	85,136	86,670
Loans at fair value	$ 13,578	$ 17,011
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Common stock, par value (in dollars per share)	$ 5	$ 5
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	23,488,884	23,506,312

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Interest and dividend income
Interest and fees on loans	$ 56,810	$ 50,049
Investment securities-taxable	3,300	2,712
Investment securities-nontaxable	1,672	758
Interest and dividend income on assets held in other financial institutions	345	1,497
Total interest and dividend income	62,127	55,016
Interest expense
Interest-bearing deposits	3,789	10,250
FHLB advances and other borrowings	1,269	1,351
Subordinated debentures	1,830	605
Total interest expense	6,888	12,206
Net interest income	55,239	42,810
Provision for credit losses	1,412	18,531
Net interest income after provision for credit losses	53,827	24,279
Noninterest income
Mortgage banking revenue	4,577	2,769
Gain on sales of securities, net	1,668	54
Loss on sales and disposals of other assets, net	(38)	(25)
Limited partnership investment income (loss)	1,772	(429)
Swap fee income	348	676
Other fee income	771	466
Other income	919	1,626
Total noninterest income	17,131	12,144
Noninterest expense
Salaries and employee benefits	22,325	21,988
Occupancy and equipment, net	4,339	4,221
Data processing	2,173	2,003
Electronic banking	961	900
Communications	415	477
Advertising and marketing	680	711
Professional services	973	1,171
Regulatory assessments	1,170	615
Loan related expenses	1,705	1,142
Office and operations	1,454	1,441
Intangible asset amortization	234	299
Franchise tax expense	619	496
Other expenses	2,388	633
Total noninterest expense	39,436	36,097
Income before income taxes	31,522	326
Income tax expense (benefit)	6,009	(427)
Net income	$ 25,513	$ 753
Basic earnings per common share (in dollars per share)	$ 1.09	$ 0.03
Diluted earnings per common share (in dollars per share)	$ 1.08	$ 0.03
Service charges and fees
Noninterest income
Revenue from contracts with customers	$ 3,343	$ 3,320
Insurance commission and fee income
Noninterest income
Revenue from contracts with customers	$ 3,771	$ 3,687

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 25,513	$ 753
Securities available for sale and transferred securities:
Net unrealized holding (loss) gain arising during the period	(15,852)	12,771
Net losses realized as a yield adjustment in interest on investment securities	(3)	(3)
Reclassification adjustment for net gain included in net income	(1,668)	(54)
Change in the net unrealized gain on investment securities, before tax	(17,523)	12,714
Income tax (benefit) expense related to net unrealized (loss) gain arising during the period	(3,680)	2,670
Change in the net unrealized gain on investment securities, net of tax	(13,843)	10,044
Cash flow hedges:
Net unrealized gain (loss) arising during the period	431	(710)
Reclassification adjustment for loss included in net income	(49)	(8)
Change in the net unrealized gain (loss) on cash flow hedges, before tax	480	(702)
Income tax expense (benefit) related to net unrealized gain (loss) on cash flow hedges	101	(147)
Change in net unrealized position on cash flow hedges, net of tax	379	(555)
Other comprehensive (loss) income, net of tax	(13,464)	9,489
Comprehensive income	$ 12,049	$ 10,242

Condensed Consolidated Statemen

Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Adjustment	Common Stock	Additional Paid-In Capital	Retained Earnings	Retained EarningsAdjustment	Accumulated Other Comprehensive Income (loss)
Common shares outstanding, beginning balance (in shares) at Dec. 31, 2019			23,480,945
Stockholders' equity, beginning balance at Dec. 31, 2019	$ 599,262	$ (760)	$ 117,405	$ 235,623	$ 239,901	$ (760)	$ 6,333
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	753				753
Other comprehensive income, net of tax	9,489						9,489
Recognition of stock compensation, net (in shares)			25,871
Recognition of stock compensation, net	784		$ 129	655
Dividends declared - common stock	(2,174)				(2,174)
Repurchase of common stock (in shares)			(30,868)
Repurchase of common stock	(723)		$ (154)	(569)
Common shares outstanding, ending balance (in shares) at Mar. 31, 2020			23,475,948
Stockholders' equity, ending balance at Mar. 31, 2020	606,631		$ 117,380	235,709	237,720		15,822
Common shares outstanding, beginning balance (in shares) at Dec. 31, 2020			23,506,312
Stockholders' equity, beginning balance at Dec. 31, 2020	647,150		$ 117,532	237,341	266,628		25,649
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	25,513				25,513
Other comprehensive income, net of tax	(13,464)						(13,464)
Recognition of stock compensation, net (in shares)			20,140
Recognition of stock compensation, net	761		$ 100	661
Dividends declared - common stock	$ (2,349)				(2,349)
Repurchase of common stock (in shares)	(37,568)		(37,568)
Repurchase of common stock	$ (1,256)		$ (188)	(1,068)
Common shares outstanding, ending balance (in shares) at Mar. 31, 2021			23,488,884
Stockholders' equity, ending balance at Mar. 31, 2021	$ 656,355		$ 117,444	$ 236,934	$ 289,792		$ 12,185

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Stockholders' Equity [Abstract]
Common stock dividends declared (in dollars per share)	$ 0.10	$ 0.0925

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net income	$ 25,513	$ 753
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	1,412	18,531
Depreciation and amortization	1,695	1,735
Net amortization on securities	1,748	552
Amortization of investments in tax credit funds	373	368
Net realized gain on securities sold	(1,668)	(54)
Deferred income tax (benefit) expense	(991)	(4,122)
Stock-based compensation expense	614	537
Originations of mortgage loans held for sale	(137,644)	(97,987)
Proceeds from mortgage loans held for sale	184,283	87,528
Gain on mortgage loans held for sale, including origination of servicing rights	(6,940)	(1,873)
Mortgage servicing rights valuation adjustment	(1,949)	5,228
Net loss on disposals of premises and equipment	0	1
Increase in the cash surrender value of life insurance	(204)	(554)
Net losses on sales and write downs of other real estate owned	38	24
Other operating activities, net	4,786	(2,939)
Net cash provided by operating activities	71,066	7,728
Cash flows from investing activities:
Purchases of securities available for sale	(71,717)	(131,064)
Maturities, paydowns and calls of securities available for sale	38,028	26,440
Proceeds from sales of securities available for sale	40,493	22,375
Maturities, paydowns and calls of securities held to maturity	142	138
Net sales (purchases) of non-marketable equity securities held in other financial institutions	15,353	(12,306)
Originations of mortgage warehouse loans	(5,050,426)	(1,259,966)
Proceeds from pay-offs of mortgage warehouse loans	5,044,082	1,097,367
Net increase in loans, excluding mortgage warehouse and loans held for sale	(124,129)	(174,836)
Bank-owned life insurance payout	0	1,641
Capital calls on limited partnership investments	(225)	(150)
Purchase of low income housing tax credit investments	(300)	0
Purchases of premises and equipment	(813)	(1,173)
Proceeds from sales of premises and equipment	51	0
Proceeds from sales of other real estate owned	269	20
Net cash used in investing activities	(109,192)	(431,514)
Cash flows from financing activities:
Net increase in deposits	594,879	327,634
Repayments on long-term FHLB advances	(13,529)	(211)
Proceeds from short-term FHLB advances	6,053,425	400,000
Repayments on short-term FHLB advances	(6,703,425)	(100,000)
Issuance of subordinated debentures, net	0	68,847
Net decrease in securities sold under agreements to repurchase	(2,087)	(1,184)
Dividends paid	(2,341)	(2,164)
Cash received from exercise of stock options	147	248
Common stock repurchased	(1,256)	(723)
Net cash (used in) provided by financing activities	(74,187)	692,447
Net (decrease) increase in cash and cash equivalents	(112,313)	268,661
Cash and cash equivalents at beginning of period	377,214	291,518
Cash and cash equivalents at end of period	264,901	560,179
Interest paid	6,999	11,965
Income taxes paid	4,040	0
Significant non-cash transactions:
Unsettled liability for investment purchases recorded at trade date	1,376	8,760
Real estate acquired in settlement of loans	$ 2,575	$ 588

Significant Accounting Policies

Significant Accounting Policies	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Significant Accounting Policies	Note 1 - Significant Accounting Policies Nature of Operations . Origin Bancorp, Inc. ("Company") is a financial holding company headquartered in Ruston, Louisiana. The Company's wholly owned bank subsidiary, Origin Bank ("Bank"), provides a broad range of financial services to businesses, municipalities, high net worth individuals and retail clients. The Company currently operates 44 banking centers located in Dallas/Fort Worth and Houston, Texas, North Louisiana and in Mississippi. The Company principally operates in one business segment, community banking. Basis of Presentation . The consolidated financial statements in this quarterly report on Form 10-Q include the accounts of the Company and all other entities in which Origin Bancorp, Inc. has a controlling financial interest, including the Bank and Davison Insurance Agency, LLC ("Davison Insurance"), doing business as Thomas & Farr Agency, and Reeves, Coon and Funderburg ("RCF"). All significant intercompany balances and transactions have been eliminated in consolidation. The Company's accounting and financial reporting policies conform, in all material respects, to generally accepted accounting principles in the United States ("U.S. GAAP") and to general practices within the financial services industry. The Company has evaluated subsequent events for potential recognition and/or disclosure through the date these consolidated financial statements were issued. The consolidated financial statements in this quarterly report on Form 10-Q have not been audited by an independent registered public accounting firm, excluding the figures as of December 31, 2020, but in the opinion of management, reflect all adjustments necessary for a fair presentation of the Company's financial position and results of operations for the periods presented. These consolidated financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") and with the rules and regulations of the Securities and Exchange Commission (the "SEC") for interim financial reporting. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. These consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2020, included in the Company's annual report on Form 10-K ("2020 Form 10-K") filed with the SEC. Operating results for the interim periods disclosed herein are not necessarily indicative of results that may be expected for a full year. Certain prior period amounts have been reclassified to conform to the current year financial statement presentations. These reclassifications did not impact previously reported net income or comprehensive income. Use of Estimates . The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions based on available information that affect the amounts reported in the financial statements and disclosures provided, including the accompanying notes, and actual results could differ. Material estimates that are particularly susceptible to change include the allowance for credit losses for loans and available for sale securities; fair value measurements of assets and liabilities; and income taxes. Estimates and assumptions are reviewed periodically and the effects of revisions are reflected in the Company's consolidated financial statements in the period they are deemed necessary. While management uses its best judgment, actual results could differ from those estimates. Effect of Recently Adopted Accounting Standards ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. ASU 2019-12 simplifies the accounting for income taxes by eliminating some exceptions to the general approach in Accounting Standards Codification (ASC) 740, Income Taxes. It also clarifies certain aspects of the existing guidance to promote more consistent application, among other things. The amendments were implemented effective January 1, 2021. Implementation of this ASU did not materially impact the consolidated financial statements or disclosures.

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Earnings Per Share	Note 2 - Earnings Per Share Basic and diluted earnings per common share are calculated using the treasury method. Under the treasury method, basic earnings per share is calculated as net income divided by the weighted average number of common shares outstanding during the period. Diluted earnings per share includes the dilutive effect of additional potential common shares issuable under stock options and restricted stock awards. Information regarding the Company's basic and diluted earnings per common share is presented in the following table: (Dollars in thousands, except per share amounts) Three Months Ended March 31, Numerator: 2021 2020 Net income (basic and diluted) $ 25,513 $ 753 Denominator: Weighted average common shares outstanding 23,393,356 23,353,601 Dilutive effect of stock-based awards 197,074 176,611 Weighted average diluted common shares outstanding 23,590,430 23,530,212 Basic earnings per common share $ 1.09 $ 0.03 Diluted earnings per common share 1.08 0.03

Securities

Securities	3 Months Ended
	Mar. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Securities	Note 3 - Securities The following table is a summary of the amortized cost and estimated fair value, including the allowance for credit losses and gross unrealized gains and losses, of available for sale, held to maturity and securities carried at fair value through income for the dates indicated: (Dollars in thousands) March 31, 2021 Amortized Gross Gross Fair Allowance for Credit Losses Net Carrying Amount Available for sale: State and municipal securities $ 401,450 $ 13,364 $ (5,641) $ 409,173 $ — $ 409,173 Corporate bonds 68,293 2,056 (386) 69,963 — 69,963 U.S. government and agency securities 5,811 3 (177) 5,637 — 5,637 Commercial mortgage-backed securities 9,088 232 (357) 8,963 — 8,963 Residential mortgage-backed securities 200,265 5,738 (943) 205,060 — 205,060 Residential collateralized mortgage obligations 193,730 1,491 (1,415) 193,806 — 193,806 Asset-backed securities 85,938 1,593 (1) 87,530 — 87,530 Total $ 964,575 $ 24,477 $ (8,920) $ 980,132 $ — $ 980,132 Held to maturity: State and municipal securities $ 38,049 $ 2,751 $ — $ 40,800 $ (66) $ 37,983 Securities carried at fair value through income: State and municipal securities (1) $ 10,618 $ — $ — $ 11,077 $ — $ 11,077 December 31, 2020 Available for sale: State and municipal securities $ 420,559 $ 21,884 $ (258) $ 442,185 $ — $ 442,185 Corporate bonds 64,313 1,762 (137) 65,938 — 65,938 U.S. government and agency securities 851 3 (5) 849 — 849 Commercial mortgage-backed securities 10,814 266 — 11,080 — 11,080 Residential mortgage-backed securities 207,742 7,441 (232) 214,951 — 214,951 Residential collateralized mortgage obligations 193,865 1,739 (261) 195,343 — 195,343 Asset-backed securities 73,451 877 — 74,328 — 74,328 Total $ 971,595 $ 33,972 $ (893) $ 1,004,674 $ — $ 1,004,674 Held to maturity: State and municipal securities $ 38,194 $ 3,011 $ — $ 41,205 $ (66) $ 38,128 Securities carried at fair value through income: State and municipal securities (1) $ 10,618 $ — $ — $ 11,554 $ — $ 11,554 ____________________________ (1) Securities carried at fair value through income have no unrealized gains or losses at the balance sheet date as all changes in value have been recognized in the consolidated statements of income. See Note 5 - Fair Value of Financial Instruments for more information. Securities with unrealized losses at March 31, 2021, and December 31, 2020, aggregated by investment category and those individual securities that have been in a continuous unrealized loss position for less than 12 months, and for 12 months or more, were as follows. (Dollars in thousands) Less than 12 Months 12 Months or More Total March 31, 2021 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Available for sale: State and municipal securities $ 147,815 $ (5,601) $ 1,520 $ (40) $ 149,335 $ (5,641) Corporate bonds 24,249 (386) — — 24,249 (386) U.S. government and agency securities 4,851 (173) 523 (4) 5,374 (177) Commercial mortgage-backed securities 6,475 (357) — — 6,475 (357) Residential mortgage-backed securities 54,673 (943) — — 54,673 (943) Residential collateralized mortgage obligations 90,832 (1,415) — — 90,832 (1,415) Asset-backed securities 6,868 (1) — — 6,868 (1) Total $ 335,763 $ (8,876) $ 2,043 $ (44) $ 337,806 $ (8,920) Held to maturity: State and municipal securities $ — $ — $ — $ — $ — $ — December 31, 2020 Available for sale: State and municipal securities $ 21,979 $ (258) $ — $ — $ 21,979 $ (258) Corporate bonds 30,513 (137) — — 30,513 (137) U.S. government and agency securities — — 568 (5) 568 (5) Residential mortgage-backed securities 23,178 (232) — — 23,178 (232) Residential collateralized mortgage obligations 43,911 (261) — — 43,911 (261) Total $ 119,581 $ (888) $ 568 $ (5) $ 120,149 $ (893) Held to maturity: State and municipal securities $ — $ — $ — $ — $ — $ — 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. At March 31, 2021, the Company had 134 available for sale debt securities in an unrealized loss position without an allowance for credit losses. 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, at March 31, 2021, 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 following table presents the activity in the allowance for credit losses for held-to-maturity debt securities. (Dollars in thousands) Municipal Securities Allowance for credit losses: Balance at January 1, 2021 $ 66 Credit loss expense — Balance at March 31, 2021 $ 66 Balance at January 1, 2020 $ — Impact of adopting ASC 326 96 Credit loss expense — Balance at March 31, 2020 $ 96 Accrued interest of $5.6 million and $2.7 million was not included in the calculation of the allowance at March 31, 2021, or March 31, 2020, respectively. There were no past due held-to-maturity securities or held-to-maturity securities in nonaccrual status at March 31, 2021, or December 31, 2020. Proceeds from sales and calls, and related gross gains and losses of securities available for sale, are shown below. Three Months Ended March 31, (Dollars in thousands) 2021 2020 Proceeds from sales $ 40,493 $ 22,375 Gross realized gains 1,700 103 Gross realized losses (32) (49) The following table presents the amortized cost and fair value of securities available for sale and held to maturity at March 31, 2021, grouped by contractual maturity. Mortgage-backed securities, collateralized mortgage obligations and asset-backed securities, which do not have contractual payments due at a single maturity date, are shown separately. Actual maturities for mortgage-backed securities, collateralized mortgage obligations and asset-backed securities will differ from contractual maturities as a result of prepayments made on the underlying loans. (Dollars in thousands) Held to Maturity Available for Sale March 31, 2021 Amortized Cost Fair Value Amortized Cost Fair Value Due in one year or less $ 12,857 $ 12,862 $ 4,725 $ 4,772 Due after one year through five years — — 52,044 56,192 Due after five years through ten years 25,192 27,938 111,175 113,565 Due after ten years — — 307,610 310,244 Commercial mortgage-backed securities — — 9,088 8,963 Residential mortgage-backed securities — — 200,265 205,060 Residential collateralized mortgage obligations — — 193,730 193,806 Asset-backed securities — — 85,938 87,530 Total $ 38,049 $ 40,800 $ 964,575 $ 980,132 The following table presents carrying amounts of securities pledged as collateral for deposits and repurchase agreements for the period ends presented. (Dollars in thousands) March 31, 2021 December 31, 2020 Carrying value of securities pledged to secure public deposits $ 232,179 $ 289,537 Carrying value of securities pledged to repurchase agreements 9,949 10,982

Loans

Loans	3 Months Ended
	Mar. 31, 2021
Receivables [Abstract]
Loans	Note 4 - Loans Loans consist of the following: (Dollars in thousands) March 31, 2021 December 31, 2020 Loans held for sale $ 144,950 $ 191,512 LHFI: Loans secured by real estate: Commercial real estate $ 1,441,071 $ 1,370,928 Construction/land/land development 548,236 531,860 Residential real estate 904,753 885,120 Total real estate 2,894,060 2,787,908 Commercial and industrial (1) 1,834,498 1,817,862 Mortgage warehouse lines of credit 1,090,347 1,084,001 Consumer 17,277 17,991 Total loans accounted for at amortized cost 5,836,182 5,707,762 Loans accounted for at fair value 13,578 17,011 Total LHFI (2) 5,849,760 5,724,773 Less: Allowance for loan losses 85,136 86,670 LHFI, net $ 5,764,624 $ 5,638,103 ____________________________ (1) Includes $584.1 million and $546.5 million of PPP loans at March 31, 2021 and December 31, 2020, respectively. (2) Includes net deferred loan fees of $15.9 million and $13.7 million at March 31, 2021, and December 31, 2020, respectively. Included in total loans held for investment ("LHFI") were $13.6 million and $17.0 million of commercial real estate loans for which the fair value option was elected at March 31, 2021 and December 31, 2020, respectively. The Company mitigates the interest rate component of fair value risk on loans at fair value by entering into derivative interest rate contracts. See Note 5 - Fair Value of Financial Instruments for more information on loans for which the fair value option has been elected. The Company has been a participating lender in the Paycheck Protection Program ("PPP"). At March 31, 2021, there were approximately $584.1 million in PPP loans outstanding included in the Company’s commercial and industrial loan portfolio, including $11.5 million in net deferred loan fees. PPP loans have a maximum maturity of two years and earn interest at 1%. PPP loans are fully guaranteed by the U.S. government and can be forgiven by the SBA if the borrower uses the proceeds to pay specified expenses. The Company believes that the majority of its PPP loans will ultimately be forgiven by the SBA in accordance with the terms of the program. Credit quality indicators. As part of the Company's commitment to manage the credit quality of its loan portfolio, management annually updates and evaluates certain credit quality indicators, which include but are not limited to (i) weighted-average risk rating of the loan portfolio, (ii) net charge-offs, (iii) level of non-performing loans, (iv) level of classified loans (defined as substandard, doubtful and loss), and (v) the general economic conditions in the states in which the Company operates. The Company maintains an internal risk rating system where ratings are assigned to individual loans based on assessed risk. Loan risk ratings are the primary indicator of credit quality for the loan portfolio and are continually evaluated to ensure they are appropriate based on currently available information. The following is a summary description of the Company's internal risk ratings: • Pass (1-6) Loans within this risk rating are further categorized as follows: Minimal risk (1) Well-collateralized by cash equivalent instruments held by the Bank. Moderate risk (2) Borrowers with excellent asset quality and liquidity. Borrowers' capitalization and liquidity exceed industry norms. Borrowers in this category have significant levels of liquid assets and have a low level of leverage. Better than average risk (3) Borrowers with strong financial strength and excellent liquidity that consistently demonstrate strong operating performance. Borrowers in this category generally have a sizable net worth that can be converted into liquid assets within 12 months. Average risk (4) Borrowers with sound credit quality and financial performance, including liquidity. Borrowers are supported by sufficient cash flow coverage generated through operations across the full business cycle. Marginally acceptable risk (5) Loans generally meet minimum requirements for an acceptable loan in accordance with lending policy, but possess one or more attributes that cause the overall risk profile to be higher than the majority of newly approved loans. Watch (6) A passing loan with one or more factors that identify a potential weakness in the overall ability of the borrower to repay the loan. These weaknesses are generally mitigated by other factors that reduce the risk of delinquency or loss. • Special Mention (7) This grade is intended to be temporary and includes borrowers whose credit quality has deteriorated and is at risk of further decline. • Substandard (8) This grade includes "Substandard" loans under regulatory guidelines. Substandard loans exhibit a well-defined weakness that jeopardizes debt repayment in accordance with contractual agreements, even though the loan may be performing. These obligations are characterized by the distinct possibility that a loss may be incurred if these weaknesses are not corrected and repayment may be dependent upon collateral liquidation or secondary source of repayment. • Doubtful (9) This grade includes "Doubtful" loans under regulatory guidelines. Such loans are placed on nonaccrual status and repayment may be dependent upon collateral with no readily determinable valuation or valuations that are highly subjective in nature. Repayment for these loans is considered improbable based on currently existing facts and circumstances. • Loss (0) This grade includes "Loss" loans under regulatory guidelines. Loss loans are charged-off or written down when repayment is not expected. In connection with the review of the loan portfolio, the Company considers risk elements attributable to particular loan types or categories in assessing the quality of individual loans. The list of loans to be reviewed for possible individual evaluation consists of nonaccrual commercial loans over $100,000 with direct exposure, unsecured loans over 90 days past due, commercial loans classified substandard or worse over $100,000 with direct exposure, troubled debt restructurings ("TDRs"), consumer loans greater than $100,000 with a FICO score under 625, loans greater than $100,000 in which the borrower has filed bankruptcy, and all loans 180 days or more past due. Loans under $50,000 will be evaluated collectively in designated pools unless a loss exposure has been identified. Some additional risk elements considered by loan type include: • for commercial real estate loans, the debt service coverage ratio, operating results of the owner in the case of owner occupied properties, the loan to value ratio, the age and condition of the collateral and the volatility of income, property value and future operating results typical of properties of that type; • for construction, land and land development loans, the perceived feasibility of the project, including the ability to sell developed lots or improvements constructed for resale or the ability to lease property constructed for lease, the quality and nature of contracts for presale or prelease, if any, experience and ability of the developer and loan to value ratio; • for residential mortgage loans, the borrower's ability to repay the loan, including a consideration of the debt to income ratio and employment and income stability, the loan-to-value ratio, and the age, condition and marketability of the collateral; and • for commercial and industrial loans, the debt service coverage ratio (income from the business in excess of operating expenses compared to loan repayment requirements), the operating results of the commercial, industrial or professional enterprise, the borrower's business, professional and financial ability and expertise, the specific risks and volatility of income and operating results typical for businesses in that category and the value, nature and marketability of collateral. The following table reflects recorded investments in loans by credit quality indicator and origination year at March 31, 2021, excluding loans held for sale and loans accounted for at fair value. The Company had an immaterial amount of revolving loans converted to term loans at March 31, 2021. Term Loans Amortized Cost Basis by Origination Year (Dollars in thousands) 2021 2020 2019 2018 2017 Prior Revolving Loans Amortized Cost Basis Total Commercial real estate: (1) Pass $ 130,211 $ 394,179 $ 290,815 $ 289,673 $ 148,317 $ 124,443 $ 21,263 $ 1,398,901 Special mention 4,383 — — 1,154 20,707 — 2,110 28,354 Classified 1,904 3,473 1,587 2,782 1,427 2,529 114 13,816 Total commercial real estate loans $ 136,498 $ 397,652 $ 292,402 $ 293,609 $ 170,451 $ 126,972 $ 23,487 $ 1,441,071 Current period gross charge-offs $ — $ — $ — $ — $ 2 $ 26 $ — $ 28 Current period gross recoveries — — — — — 3 — 3 Current period net charge-offs (recoveries) $ — $ — $ — $ — $ 2 $ 23 $ — $ 25 (1) Excludes $13.6 million of commercial real estate loans at fair value, which are not included in the loss estimation methodology due to the fair value option election. Construction/land/land development: Pass $ 40,706 $ 193,152 $ 142,872 $ 119,935 $ 12,716 $ 2,505 $ 17,490 $ 529,376 Special mention — — 10,242 135 1,003 — — 11,380 Classified 306 317 1,079 716 1,508 291 3,263 7,480 Total construction/land/land development loans $ 41,012 $ 193,469 $ 154,193 $ 120,786 $ 15,227 $ 2,796 $ 20,753 $ 548,236 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Current period gross recoveries — — — — — — — — Current period net charge-offs (recoveries) $ — $ — $ — $ — $ — $ — $ — $ — Residential real estate: Pass $ 53,633 $ 354,359 $ 118,406 $ 114,721 $ 101,869 $ 89,887 $ 52,920 $ 885,795 Special mention 1,447 185 — — 801 196 — 2,629 Classified 94 1,658 2,354 2,955 2,214 6,826 228 16,329 Total residential real estate loans $ 55,174 $ 356,202 $ 120,760 $ 117,676 $ 104,884 $ 96,909 $ 53,148 $ 904,753 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Current period gross recoveries — — — — — 9 — 9 Current period net charge-offs (recoveries) $ — $ — $ — $ — $ — $ (9) $ — $ (9) Term Loans Amortized Cost Basis by Origination Year (Dollars in thousands) 2021 2020 2019 2018 2017 Prior Revolving Loans Amortized Cost Basis Total Commercial and industrial: Pass $ 254,777 $ 700,996 $ 137,792 $ 103,342 $ 22,396 $ 33,753 $ 471,812 $ 1,724,868 Special mention 217 4,631 2,275 25,902 408 14,458 4,125 52,016 Classified 4,474 1,228 11,786 5,753 4,942 10,198 19,233 57,614 Total commercial and industrial loans $ 259,468 $ 706,855 $ 151,853 $ 134,997 $ 27,746 $ 58,409 $ 495,170 $ 1,834,498 Current period gross charge-offs $ — $ 4 $ 54 $ — $ 362 $ 1,282 $ 1,253 $ 2,955 Current period gross recoveries — — 13 — 11 76 8 108 Current period net charge-offs (recoveries) $ — $ 4 $ 41 $ — $ 351 $ 1,206 $ 1,245 $ 2,847 Mortgage Warehouse Lines of Credit: Pass $ — $ — $ — $ — $ — $ — $ 1,090,347 $ 1,090,347 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Current period gross recoveries — — — — — — — — Current period net charge-offs (recoveries) $ — $ — $ — $ — $ — $ — $ — $ — Consumer: Pass $ 1,858 $ 5,477 $ 2,656 $ 1,276 $ 154 $ 148 $ 5,652 $ 17,221 Classified — 28 9 1 — 5 13 56 Total consumer loans $ 1,858 $ 5,505 $ 2,665 $ 1,277 $ 154 $ 153 $ 5,665 $ 17,277 Current period gross charge-offs $ — $ — $ 22 $ 2 $ — $ 6 $ 14 $ 44 Current period gross recoveries — — — — — 13 — 13 Current period net charge-offs (recoveries) $ — $ — $ 22 $ 2 $ — $ (7) $ 14 $ 31 The following table reflects recorded investments in loans by credit quality indicator and origination year at December 31, 2020, excluding loans held for sale and loans accounted for at fair value. The Company had an immaterial amount of revolving loans converted to term loans at December 31, 2020. Term Loans Amortized Cost Basis by Origination Year (Dollars in thousands) 2020 2019 2018 2017 2016 Prior Revolving Loans Amortized Cost Basis Total Commercial real estate: (1) Pass $ 393,317 $ 290,394 $ 312,051 $ 154,445 $ 46,132 $ 106,994 $ 18,419 $ 1,321,752 Special mention 824 113 2,410 20,691 — 1,656 2,145 27,839 Classified 2,806 1,678 6,704 6,586 1,476 1,093 994 21,337 Total commercial real estate loans $ 396,947 $ 292,185 $ 321,165 $ 181,722 $ 47,608 $ 109,743 $ 21,558 $ 1,370,928 Current period gross charge-offs $ — $ — $ — $ 3,622 $ 199 $ 1,103 $ — $ 4,924 Current period gross recoveries — — — — — 19 — 19 Current period net charge-offs $ — $ — $ — $ 3,622 $ 199 $ 1,084 $ — $ 4,905 (1) Excludes $17.0 million of commercial real estate loans at fair value, which are not included in the loss estimation methodology due to the fair value option election. Term Loans Amortized Cost Basis by Origination Year (Dollars in thousands) 2020 2019 2018 2017 2016 Prior Revolving Loans Amortized Cost Basis Total Construction/land/land development: Pass $ 189,311 $ 150,281 $ 138,000 $ 12,907 $ 1,812 $ 1,157 $ 18,892 $ 512,360 Special mention 323 10,421 135 1,003 — — — 11,882 Classified — 1,811 726 1,507 143 168 3,263 7,618 Total construction/land/land development loans $ 189,634 $ 162,513 $ 138,861 $ 15,417 $ 1,955 $ 1,325 $ 22,155 $ 531,860 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Current period gross recoveries — — — — — 1 — 1 Current period net charge-offs (recoveries) $ — $ — $ — $ — $ — $ (1) $ — $ (1) Residential real estate: Pass $ 367,652 $ 143,368 $ 103,450 $ 102,272 $ 41,522 $ 50,094 $ 53,854 $ 862,212 Special mention 188 — 29 1,875 9,287 803 — 12,182 Classified 1,857 2,403 2,982 511 1,344 1,533 96 10,726 Total residential real estate loans $ 369,697 $ 145,771 $ 106,461 $ 104,658 $ 52,153 $ 52,430 $ 53,950 $ 885,120 Current period gross charge-offs $ 94 $ 271 $ — $ 283 $ — $ 44 $ — $ 692 Current period gross recoveries — — — — — 202 — 202 Current period net charge-offs (recoveries) $ 94 $ 271 $ — $ 283 $ — $ (158) $ — $ 490 Commercial and industrial: Pass $ 851,780 $ 153,722 $ 110,092 $ 29,413 $ 9,927 $ 26,964 $ 511,220 $ 1,693,118 Special mention 4,860 2,059 26,438 423 — 14,843 8,077 56,700 Classified 5,436 12,250 5,859 5,450 5,950 6,707 26,392 68,044 Total commercial and industrial loans $ 862,076 $ 168,031 $ 142,389 $ 35,286 $ 15,877 $ 48,514 $ 545,689 $ 1,817,862 Current period gross charge-offs $ 189 $ 204 $ 87 $ 121 $ 3,228 $ 469 $ 2,404 $ 6,702 Current period gross recoveries — 42 20 81 185 112 582 1,022 Current period net charge-offs $ 189 $ 162 $ 67 $ 40 $ 3,043 $ 357 $ 1,822 $ 5,680 Mortgage Warehouse Lines of Credit: Pass $ — $ — $ — $ — $ — $ — $ 1,084,001 $ 1,084,001 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Current period gross recoveries — — — — — — — — Current period net charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Consumer: Pass $ 6,702 $ 3,318 $ 1,578 $ 203 $ 116 $ 83 $ 5,935 $ 17,935 Classified 28 8 — — 6 1 13 56 Total consumer loans $ 6,730 $ 3,326 $ 1,578 $ 203 $ 122 $ 84 $ 5,948 $ 17,991 Current period gross charge-offs $ — $ 39 $ 23 $ 8 $ — $ 4 $ 2 $ 76 Current period gross recoveries — — 1 7 5 7 4 24 Current period net charge-offs (recoveries) $ — $ 39 $ 22 $ 1 $ (5) $ (3) $ (2) $ 52 The following tables present the Company's loan portfolio aging analysis at the dates indicated: March 31, 2021 (Dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due Loans Past Due 90 Days or More Total Past Due Current Loans Total Loans Receivable Accruing Loans 90 or More Days Past Due Loans secured by real estate: Commercial real estate (1) $ 1,055 $ — $ 571 $ 1,626 $ 1,453,023 $ 1,454,649 $ — Construction/land/land development 257 253 1,832 2,342 545,894 548,236 — Residential real estate 2,287 4,361 3,116 9,764 894,989 904,753 — Total real estate 3,599 4,614 5,519 13,732 2,893,906 2,907,638 — Commercial and industrial 791 165 11,825 12,781 1,821,717 1,834,498 — Mortgage warehouse lines of credit — — — — 1,090,347 1,090,347 — Consumer 58 1 2 61 17,216 17,277 — Total LHFI $ 4,448 $ 4,780 $ 17,346 $ 26,574 $ 5,823,186 $ 5,849,760 $ — ____________________________ (1) Includes $13.6 million of commercial real estate loans at fair value December 31, 2020 (Dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due Loans Past Due 90 Days or More Total Past Due Current Loans Total Loans Receivable Accruing Loans 90 or More Days Past Due Loans secured by real estate: Commercial real estate (1) $ 1,072 $ — $ 3,172 $ 4,244 $ 1,383,695 $ 1,387,939 $ — Construction/land/land development 369 1 2,328 2,698 529,162 531,860 — Residential real estate 3,774 134 364 4,272 880,848 885,120 — Total real estate 5,215 135 5,864 11,214 2,793,705 2,804,919 — Commercial and industrial 703 1,097 12,625 14,425 1,803,437 1,817,862 — Mortgage warehouse lines of credit — — — — 1,084,001 1,084,001 — Consumer 113 9 2 124 17,867 17,991 — Total LHFI $ 6,031 $ 1,241 $ 18,491 $ 25,763 $ 5,699,010 $ 5,724,773 $ — ____________________________ (1) Includes $17.0 million of commercial real estate loans at fair value The following tables detail activity in the allowance for loan credit losses by portfolio segment. Accrued interest of $20.2 million and $12.6 million was not included in the book value for the purposes of calculating the allowance at March 31, 2021 and March 31, 2020, respectively. Allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories. Three Months Ended March 31, 2021 (Dollars in thousands) Beginning Balance Charge-offs Recoveries Provision (Benefit) (1) Ending Balance Loans secured by real estate: Commercial real estate $ 15,430 $ 28 $ 3 $ 2,992 $ 18,397 Construction/land/land development 8,191 — — (802) 7,389 Residential real estate 9,418 — 9 (1,133) 8,294 Commercial and industrial 51,857 2,955 108 332 49,342 Mortgage warehouse lines of credit 856 — — 67 923 Consumer 918 44 13 (96) 791 Total $ 86,670 $ 3,027 $ 133 $ 1,360 $ 85,136 ____________________________ (1) The $1.4 million provision for credit losses on the consolidated statements of income includes a $1.4 million net loan loss provision, and a $52,000 provision for off-balance sheet commitments for the three months ended March 31, 2021. Three Months Ended March 31, 2020 (Dollars in thousands) Beginning Balance Impact of Adopting ASC 326 Charge-offs Recoveries Provision (1) Ending Balance Loans secured by real estate: Commercial real estate $ 10,013 $ (5,052) $ 172 $ 2 $ 4,463 $ 9,254 Construction/land/land development 3,711 1,141 — — 202 5,054 Residential real estate 6,332 (2,526) 49 149 589 4,495 Commercial and industrial 16,960 7,296 1,180 169 12,578 35,823 Mortgage warehouse lines of credit 262 29 — — 488 779 Consumer 242 360 24 4 76 658 Total $ 37,520 $ 1,248 $ 1,425 $ 324 $ 18,396 $ 56,063 ____________________________ (1) The $18.5 million provision for credit losses on the consolidated statements of income includes a $18.4 million net loan loss provision and a $135,000 provision for off-balance sheet commitments for the three months ended March 31, 2020. The decrease in provision expense compared to the quarter ended March 31, 2020, was primarily due to improvement in forecasted economic conditions during the quarter ended March 31, 2021, as compared to forecasted worsening economic conditions during the quarter ended March 31, 2020. The Company's credit quality profile in relation to the allowance for loan credit losses drove a decline of $1.6 million in the collective reserve during the three months ended March 31, 2021, of which a $1.1 million decrease was related to qualitative factor changes across the Company’s risk pools for the three months ended March 31, 2021. Six commercial and industrial loans, reflecting four loan relationships, were written down during the quarter ended March 31, 2021, totaling $2.8 million. The provision for loan credit losses for the first quarter of 2020 was driven by a significant increase in uncertainty related to the economic impact of the current COVID-19 pandemic. Based upon the requirement of CECL, economic forecasts are essential for estimating the life of loan losses. The increased risk, as reflected in current and forecast adjustments, resulted in approximately $11.2 million in provision expense across the Company’s risk pools. An additional $6.0 million in provision expense was due to the current and forecast effects of individually evaluated loans. The provision for commercial real estate loans includes approximately $3.0 million in increased credit allowances related to individually evaluated loans. The provision for commercial and industrial loans includes $5.4 million related to current and forecast factors as well as approximately $3.0 million related to individually evaluated loans. The only significant charge-off in commercial and industrial loans during the first quarter of 2020 was for $732,000 on an operating loan secured by equipment. The following tables show the recorded investment in loans by loss estimation methodology at March 31, 2021, and December 31, 2020. March 31, 2021 Collectively Evaluated Individually Evaluated (Dollars in thousands) Probability of Default Fair Value of Collateral Discounted Cash Flow Total Loans secured by real estate: Commercial real estate (1) $ 1,438,054 $ 571 $ 2,446 $ 1,441,071 Construction/land/land development 545,796 2,112 328 548,236 Residential real estate 894,416 8,482 1,855 904,753 Commercial and industrial 1,814,453 9,388 10,657 1,834,498 Mortgage warehouse lines of credit 1,090,347 — — 1,090,347 Consumer 17,275 2 — 17,277 Total $ 5,800,341 $ 20,555 $ 15,286 $ 5,836,182 ____________________________ (1) Excludes $13.6 million of commercial real estate loans at fair value, which are not included in the loss estimation methodology due to the fair value option election. December 31, 2020 Collectively Evaluated Individually Evaluated (Dollars in thousands) Probability of Default Fair Value of Collateral Discounted Cash Flow Total Loans secured by real estate: Commercial real estate (1) $ 1,365,284 $ 3,173 $ 2,471 $ 1,370,928 Construction/land/land development 528,894 2,621 345 531,860 Residential real estate 879,015 2,009 4,096 885,120 Commercial and industrial 1,804,049 3,152 10,661 1,817,862 Mortgage warehouse lines of credit 1,084,001 — — 1,084,001 Consumer 17,991 — — 17,991 Total $ 5,679,234 $ 10,955 $ 17,573 $ 5,707,762 ____________________________ (1) Excludes $17.0 million of commercial real estate loans at fair value, which are not included in the loss estimation methodology due to the fair value option election. The following tables show the allowance for loan credit losses by loss estimation methodology at March 31, 2021, and December 31, 2020. March 31, 2021 Collectively Evaluated Individually Evaluated (Dollars in thousands) Probability of Default Fair Value of Collateral Discounted Cash Flow Total Loans secured by real estate: Commercial real estate $ 18,388 $ — $ 9 $ 18,397 Construction/land/land development 7,258 131 — 7,389 Residential real estate 7,992 — 302 8,294 Commercial and industrial 41,488 3,201 4,653 49,342 Mortgage warehouse lines of credit 923 — — 923 Consumer 789 2 — 791 Total $ 76,838 $ 3,334 $ 4,964 $ 85,136 December 31, 2020 Collectively Evaluated Individually Evaluated (Dollars in thousands) Probability of Default Fair Value of Collateral Discounted Cash Flow Total Loans secured by real estate: Commercial real estate $ 14,896 $ 525 $ 9 $ 15,430 Construction/land/land development 8,062 128 1 8,191 Residential real estate 8,983 — 435 9,418 Commercial and industrial 44,714 1,707 5,436 51,857 Mortgage warehouse lines of credit 856 — — 856 Consumer 918 — — 918 Total $ 78,429 $ 2,360 $ 5,881 $ 86,670 Note that the Company is not using the collateral maintenance agreement practical expedient. All fair value of collateral is real estate related. Collateral-dependent loans consist primarily of commercial real estate and commercial and industrial loans. These loans are individually evaluated when foreclosure is probable or when the repayment of the loan is expected to be provided substantially through the operation or sale of the underlying collateral. Loan balances are charged down to the underlying collateral value when they are deemed uncollectible. Nonaccrual LHFI were as follows: Nonaccrual With No Nonaccrual (Dollars in thousands) Loans secured by real estate: March 31, 2021 December 31, 2020 March 31, 2021 December 31, 2020 Commercial real estate $ 1,012 $ 1,053 $ 1,085 $ 3,704 Construction/land/land development 955 1,319 2,431 2,962 Residential real estate 8,901 2,436 10,692 6,530 Total real estate 10,868 4,808 14,208 13,196 Commercial and industrial 76 82 19,094 12,897 Consumer — — 56 56 Total nonaccrual loans $ 10,944 $ 4,890 $ 33,358 $ 26,149 All interest accrued but not received for loans placed on nonaccrual status is reversed against interest income. Subsequent receipts on nonaccrual loans are recorded as a reduction of principal, and interest income is recorded only after principal recovery is reasonably assured. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. At March 31, 2021, the Company had no funding commitments for which the terms have been modified in TDRs. For the three months ended March 31, 2021 and 2020, gross interest income that would have been recorded had the nonaccruing loans been current in accordance with their original terms was $341,000 and $354,000, respectively. No interest income was recorded on these loans while they were considered nonaccrual during the three months ended March 31, 2021 and 2020. The Company elects the fair value option for recording residential mortgage loans held for sale, as well as certain commercial real estate loans in accordance with U.S. GAAP. The Company had $963,000 of nonaccrual mortgage loans held for sale that were recorded using the fair value option election at March 31, 2021, compared to $681,000 at December 31, 2020. There were no nonaccrual LHFI that were recorded using the fair value option election at March 31, 2021, or December 31, 2020. Certain borrowers are currently unable to meet their contractual payment obligations because of the adverse effects of COVID-19. To help mitigate these effects, loan customers may apply for a deferral of payments, or portions thereof, for up to 90 days. The CARES Act and related guidance from the federal banking agencies provide financial institutions the option to temporarily suspend requirements under GAAP related to classification of certain loan modifications as TDRs to account for the current and anticipated effects of COVID-19. The CARES Act, as amended by the Consolidated Appropriations Act, 2021, specified that COVID-19 related loan modifications executed between March 1, 2020 and the earlier of (i) 60 days after the date of termination of the national emergency declared by the President and (ii) January 1, 2022, on loans that were current as of December 31, 2019 are not TDRs. Additionally, under guidance from the federal banking agencies, other short-term modifications made on a good faith basis in response to COVID-19 to borrowers that were current prior to any relief are not TDRs under ASC Subtopic 310-40, “Troubled Debt Restructuring by Creditors.” These modifications include short-term (e.g., up to six months) modifications such as payment deferrals, fee waivers, extensions of repayment terms, or delays in payment that are insignificant. At March 31, 2021, the Company had 24 loans totaling $5.3 million under COVID-19 related forbearance agreements that were not treated as TDRs pursuant to the CARES Act and interagency guidance compared to 49 loans totaling $97.7 million at December 31, 2020. Loans classified as TDRs, excluding the impact of forbearances granted due to COVID-19, were as follows: (Dollars in thousands) March 31, 2021 December 31, 2020 TDRs Nonaccrual TDRs $ 5,515 $ 5,671 Performing TDRs 3,237 3,314 Total $ 8,752 $ 8,985 There were no loans classified as TDR's during the three months ended March 31, 2021. The tables below summarize loans classified as TDR's by loan and concession type during the three months ended March 31, 2020. Three Months Ended March 31, 2020 (Dollars in thousands) Number of Loans Restructured Pre-Modification Recorded Balance Term Concessions Interest Rate Concessions Combination of Term and Rate Concessions Total Modifications Commercial and industrial 2 $ 128 $ 127 $ — $ — $ 127 Total 2 $ 128 $ 127 $ — $ — $ 127 During the three months ended March 31, 2021, no loans defaulted after having been modified as a TDR within the previous 12 months. During the three months ended March 31, 2020, two loans with a combined outstanding principal balance of $2.3 million defaulted after having been modified as a TDR within the previous 12 months. A payment default is defined as a loan that was 90 or more days past due. The modifications made during the three months ended March 31, 2020, did not significantly impact the Company's determination of the allowance for loan credit losses. The Company monitors the performance of the modified loans to their restructured terms on an ongoing basis. In the event of a subsequent default, the allowance for loan credit losses continues to be reassessed on the basis of an individual evaluation of each loan.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Note 5 - Fair Value of Financial Instruments Fair value is the exchange price that is expected to be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Certain assets and liabilities are recorded in the Company's consolidated financial statements at fair value. Some are recorded on a recurring basis and some on a non-recurring basis. The Company utilizes fair value measurement to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. The determination of fair values of financial instruments often requires the use of estimates. In cases where quoted market values in an active market are not available, the Company utilizes valuation techniques that are consistent with the market approach, the income approach and/or the cost approach to estimate the fair values of its financial instruments. Such valuation techniques are consistently applied. A hierarchy for fair value has been established which categorizes the valuation techniques into three levels used to measure fair value. The three levels are as follows: Level 1 - Fair value is based on unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 - Fair value is based on significant other observable inputs that are generally determined based on a single price for each financial instrument provided to the Company by an unrelated third-party pricing service and is based on one or more of the following: • Quoted prices for similar, but not identical, 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, such as interest rate and yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates; and • Other inputs derived from or corroborated by observable market inputs. Level 3 - Prices or valuation techniques that require inputs that are both significant and unobservable in the market. These instruments are valued using the best information available, some of which is internally developed, and reflects the Company's own assumptions about the risk premiums that market participants would generally require and the assumptions they would use. There were no transfers between fair value reporting levels for any period presented. Fair Values of Assets and Liabilities Recorded on a Recurring Basis The following tables summarize financial assets and financial liabilities recorded at fair value on a recurring basis at March 31, 2021, and December 31, 2020, segregated by the level of valuation inputs within the fair value hierarchy utilized to measure fair value. There were no changes in the valuation techniques during 2021 or 2020. March 31, 2021 (Dollars in thousands) Level 1 Level 2 Level 3 Total State and municipal securities $ — $ 367,698 $ 41,475 $ 409,173 Corporate bonds — 69,963 — 69,963 U.S. government agency securities — 5,637 — 5,637 Commercial mortgage-backed securities — 8,963 — 8,963 Residential mortgage-backed securities — 205,060 — 205,060 Residential collateralized mortgage obligations — 193,806 — 193,806 Asset-backed securities — 87,530 — 87,530 Securities available for sale — 938,657 41,475 980,132 Securities carried at fair value through income — — 11,077 11,077 Loans held for sale — 82,706 — 82,706 Loans at fair value — — 13,578 13,578 Mortgage servicing rights — — 17,552 17,552 Other assets - derivatives — 17,677 — 17,677 Total recurring fair value measurements - assets $ — $ 1,039,040 $ 83,682 $ 1,122,722 Other liabilities - derivatives $ — $ (15,432) $ — $ (15,432) Total recurring fair value measurements - liabilities $ — $ (15,432) $ — $ (15,432) December 31, 2020 (Dollars in thousands) Level 1 Level 2 Level 3 Total State and municipal securities $ — $ 398,120 $ 44,065 $ 442,185 Corporate bonds — 65,938 — 65,938 U.S. government agency securities — 849 — 849 Commercial mortgage-backed securities — 11,080 — 11,080 Residential mortgage-backed securities — 214,951 — 214,951 Residential collateralized mortgage obligations — 195,343 — 195,343 Asset-backed securities — 74,328 — 74,328 Securities available for sale — 960,609 44,065 1,004,674 Securities carried at fair value through income — — 11,554 11,554 Loans held for sale — 136,026 — 136,026 Loans at fair value — — 17,011 17,011 Mortgage servicing rights — — 13,660 13,660 Other assets - derivatives — 23,694 — 23,694 Total recurring fair value measurements - assets $ — $ 1,120,329 $ 86,290 $ 1,206,619 Other liabilities - derivatives $ — $ (23,020) $ — $ (23,020) Total recurring fair value measurements - liabilities $ — $ (23,020) $ — $ (23,020) The changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the three months ended March 31, 2021 and 2020, are summarized as follows: (Dollars in thousands) Loans at Fair Value MSRs Securities Available for Sale Securities at Fair Value Through Income Balance at January 1, 2021 $ 17,011 $ 13,660 $ 44,065 $ 11,554 Gain (loss) recognized in earnings: Mortgage banking revenue (1) — 1,949 — — Other noninterest income (59) — — (477) Loss recognized in AOCI — — (489) — Purchases, issuances, sales and settlements: Originations — 1,943 — — Settlements (3,374) — (2,101) — Balance at March 31, 2021 $ 13,578 $ 17,552 $ 41,475 $ 11,077 Balance at January 1, 2020 $ 17,670 $ 20,697 $ 38,173 $ 11,513 Gain (loss) recognized in earnings: Mortgage banking revenue (1) — (5,228) — — Other noninterest income 166 — — 729 Gain recognized in AOCI — — 160 — Purchases, issuances, sales and settlements: Originations — 653 — — Sales — — (1,908) — Settlements (247) — — — Balance at March 31, 2020 $ 17,589 $ 16,122 $ 36,425 $ 12,242 ____________________________ (1) Total mortgage banking revenue includes changes in fair value due to market changes and run-off. The Company obtains fair value measurements for loans at fair value, securities available for sale and securities at fair value through income from an independent pricing service, therefore, quantitative unobservable inputs are unknown. The following methodologies were used to measure the fair value of financial assets and liabilities valued on a recurring basis: Securities Available for Sale Securities classified as available for sale are reported at fair value utilizing Level 1, Level 2 or Level 3 inputs. For Level 2 securities, 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, market consensus prepayment speeds, credit information and the security's terms and conditions, among other things. In order to ensure the fair values are consistent with Accounting Standards Codification ("ASC") 820, Fair Value Measurements and Disclosures , the Company periodically checks the fair value by comparing them to other pricing sources, such as Bloomberg LP. The third-party pricing service is subject to an annual review of internal controls in accordance with the Statement on Standards for Attestation Engagements No. 16, which was made available to the Company. In certain cases where Level 2 inputs are not available, securities are classified within Level 3 of the hierarchy. Mortgage Servicing Rights ("MSRs") The carrying amounts of the MSRs equal fair value and are valued using a discounted cash flow valuation technique. The significant assumptions used to value MSRs were as follows: March 31, 2021 December 31, 2020 Range Weighted Average (1) Range Weighted Average (1) Prepayment speeds 7.78% - 35.56% 14.47 % 11.82% - 37.95% 22.08 % Discount rates 9.00 - 10.50 9.50 7.83 - 9.09 8.27 __________________________ (1) The weighted average was calculated with reference to the principle balance of the underlying mortgages. In recent years, there have been significant market-driven fluctuations in the assumptions listed above. Loans with higher average coupon rates have a greater likelihood of prepayment during the current interest rate environment, while loans with lower average coupon rates have a lower likelihood of prepayment. The increase in rates since the year ended December 31, 2020, has caused an decrease in our weighted average prepayment speed and an increase in our discount rate assumptions used in the MSR valuation. These fluctuations can be rapid and may continue to be significant. Therefore, estimating these assumptions within ranges that market participants would use in determining the fair value of MSRs requires significant management judgment. Derivatives Fair values for interest rate swap agreements are based upon the amounts that would be required to settle the contracts. Fair values for derivative loan commitments and forward loan sale commitments are based on fair values of the underlying mortgage loans and the probability of such commitments being exercised. Significant management judgment and estimation is required in determining these fair value measurements. Fair Values of Assets Recorded on a Recurring Basis for which the Fair Value Option has been Elected Certain assets are measured at fair value on a recurring basis due to the Company's election to adopt fair value accounting treatment for those assets. This election allows for a more effective offset of the changes in fair values of the assets and the derivative instruments used to economically hedge them without the burden of complying with the requirements for hedge accounting under ASC 815, Derivatives and Hedging. For assets for which the fair value has been elected, the earned current contractual interest payment is recognized in interest income, loan origination costs and fees on fair value option loans are recognized in earnings as incurred and not deferred. At March 31, 2021, and December 31, 2020, there were no gains or losses recorded attributable to changes in instrument-specific credit risk. The following tables summarize the difference between the fair value and the unpaid principal balance for financial instruments for which the fair value option has been elected: March 31, 2021 (Dollars in thousands) Aggregate Fair Value Aggregate Unpaid Principal Balance Difference Loans held for sale (1) $ 82,706 $ 80,761 $ 1,945 Commercial real estate LHFI (2) 13,578 13,386 192 Securities carried at fair value through income 11,077 10,618 459 Total $ 107,361 $ 104,765 $ 2,596 ____________________________ (1) $963,000 of loans held for sale were designated as nonaccrual or 90 days or more past due at March 31, 2021. Of this balance, $826,000 was guaranteed by U.S. Government agencies. (2) There were no commercial real estate loans for which the fair value had been elected that were designated as nonaccrual or 90 days or more past due at March 31, 2021. December 31, 2020 (Dollars in thousands) Aggregate Fair Value Aggregate Unpaid Principal Balance Difference Loans held for sale (1) $ 136,026 $ 129,955 $ 6,071 Commercial real estate LHFI (2) 17,011 16,760 251 Securities carried at fair value through income 11,554 10,618 936 Total $ 164,591 $ 157,333 $ 7,258 ____________________________ (1) $681,000 of loans held for sale were designated as nonaccrual or 90 days or more past due at December 31, 2020. Of this balance, $473,000 was guaranteed by U.S. Government agencies. (2) There were no commercial real estate loans for which the fair value had been elected that were designated as nonaccrual or 90 days or more past due at December 31, 2020. Changes in the fair value of assets for which the Company elected the fair value option are classified in the consolidated statement of income line items reflected in the following table: (Dollars in thousands) Three Months Ended March 31, Changes in fair value included in noninterest income: 2021 2020 Mortgage banking revenue $ (4,125) $ 1,046 Other income: Loans at fair value held for investment (59) 166 Securities carried at fair value through income (477) 729 Total impact on other income (536) 895 Total fair value option impact on noninterest income (1) $ (4,661) $ 1,941 ____________________________ (1) The fair value option impact on noninterest income is offset by the derivative gain/loss recognized in noninterest income. Please see Note 6 - Mortgage Banking for more detail. The following methodologies were used to measure the fair value of financial assets valued on a recurring basis for which the fair value option was elected: Securities at Fair Value through Income Securities carried at fair value through income are valued using a discounted cash flow with a credit spread applied to each instrument based on the credit worthiness of each issuer. Credit spreads ranged from 83 to 227 basis points at both March 31, 2021, and December 31, 2020. The Company believes the fair value approximates an exit price. Loans Held for Sale Fair values for loans held for sale are established using anticipated sale prices for loans allocated to a sale commitment, and those unallocated to a commitment are valued based on the interest rate and term for similar loans allocated. The Company believes the fair value approximates an exit price. LHFI For LHFI for which the fair value option has been elected, fair values are calculated using a discounted cash flow model with inputs including observable interest rate curves and unobservable credit adjustment spreads based on credit risk inherent in the loan. Credit spreads ranged from 290 to 353 basis points at March 31, 2021, and 290 to 413 basis points at December 31, 2020. The Company believes the fair value approximates an exit price. Fair Value of Assets Recorded on a Nonrecurring Basis Equity Securities without Readily Determinable Fair Values Equity securities without readily determinable fair values totaled $47.3 million and $62.6 million, at March 31, 2021, and December 31, 2020, respectively, and are shown on the face of the consolidated balance sheets. The majority of the Company's equity investments qualify for the practical expedient allowed for equity securities without a readily determinable fair value, such that the Company has elected to carry these securities at cost adjusted for any observable transactions during the period, less any impairment. To date, no impairment has been recorded on the Company's investments in equity securities that do not have readily determinable fair values. Government National Mortgage Association Repurchase Asset The Company recorded $62.2 million and $55.5 million, respectively, at March 31, 2021, and December 31, 2020, for Government National Mortgage Association ("GNMA") repurchase assets included in mortgage loans held for sale on the consolidated balance sheets. The assets are valued at the lower of cost or market and, where market is lower than cost, valued using anticipated sale prices for loans allocated to a sale commitment, and those unallocated to a commitment are valued based on the interest rate and term for similar loans allocated. The Company believes the fair value approximates an exit price. Please see Note 6 - Mortgage Banking for more information on the GNMA repurchase asset. Collateral Dependent Loans with Credit Losses Loans for which it is probable that the Company will not collect all principal and interest due according to contractual terms are measured to determine if any credit loss exists. Allowable methods for determining the amount of credit loss includes estimating the fair value using the fair value of the collateral for collateral-dependent loans. If the loan is identified as collateral-dependent, the fair value method of measuring the amount of credit loss is utilized. This method requires obtaining a current independent appraisal of the collateral and applying a discount factor to the value. Loans that have experienced a credit loss that are collateral-dependent are classified within Level 3 of the fair value hierarchy when the credit loss is determined using the fair value method. The fair value of loans that have experienced a credit loss with specific allocated losses was approximately $15.4 million and $12.3 million at March 31, 2021, and December 31, 2020, respectively. Non-Financial Assets Foreclosed assets held for sale are the only non-financial assets valued on a non-recurring basis that are initially recorded by the Company 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 Company's recorded investment in the related loan, a write-down is recognized through a charge to the allowance for loan credit losses. Additionally, valuations are periodically performed by management and any subsequent reduction in value is recognized by a charge to income. The carrying value and fair value of foreclosed assets held for sale is estimated using Level 3 inputs based on observable market data and was $3.9 million and $1.6 million at March 31, 2021, and December 31, 2020, respectively. At March 31, 2021, the Company had no residential mortgage loans in the process of foreclosure. Fair Values of Financial Instruments Not Recorded at Fair Value Loans The estimated fair value approximates carrying value for variable-rate loans that reprice frequently and with no significant change in credit risk. The fair value of fixed-rate loans and variable-rate loans which reprice on an infrequent basis is estimated by discounting future cash flows using exit level pricing, which combines the current interest rates at which similar loans with similar terms would be made to borrowers of similar credit quality and an estimated additional rate to reflect a liquidity premium. An overall valuation adjustment is made for specific credit risks as well as general portfolio credit risk. Deposits The estimated fair value approximates carrying value for demand deposits. The fair value of fixed-rate deposit liabilities with defined maturities is estimated by discounting future cash flows using the interest rates currently available for funding from the FHLB. The estimated fair value of deposits does not take into account the value of our long-term relationships with depositors, commonly known as core deposit intangibles, which are separate intangible assets, and not considered financial instruments. Nonetheless, the Company would likely realize a core deposit premium if the deposit portfolio were sold in the principal market for such deposits. Borrowed Funds The estimated fair value approximates carrying value for short-term borrowings. The fair value of long-term fixed-rate and fixed-to-floating-rate borrowings is estimated using quoted market prices, if available, or by discounting future cash flows using current interest rates for similar financial instruments. The estimated fair value approximates carrying value for variable-rate junior subordinated debentures that reprice quarterly. The carrying value and estimated fair values of financial instruments not recorded at fair value are as follows: (Dollars in thousands) Financial assets: March 31, 2021 December 31, 2020 Level 1 inputs: Carrying Estimated Carrying Estimated Cash and cash equivalents $ 264,901 $ 264,901 $ 377,214 $ 377,214 Level 2 inputs: Non-marketable equity securities held in other financial institutions 47,274 47,274 62,586 62,586 Accrued interest and loan fees receivable 27,450 27,450 27,146 27,146 Level 3 inputs: Securities held to maturity 37,983 40,800 38,128 41,205 LHFI, net (1) 5,751,046 5,729,954 5,621,092 5,802,744 Financial liabilities: Level 2 inputs: Deposits 6,346,194 6,349,699 5,751,315 5,756,312 FHLB advances and other borrowings 325,751 312,306 984,608 991,943 Subordinated debentures 157,239 156,451 157,181 156,395 Accrued interest payable 3,445 3,445 3,556 3,556 ____________________________ (1) Does not include loans for which the fair value option had been elected at March 31, 2021, or December 31, 2020, as these loans are carried at fair value on a recurring basis.

Mortgage Banking

Mortgage Banking	3 Months Ended
	Mar. 31, 2021
Mortgage Banking [Abstract]
Mortgage Banking	Note 6 - Mortgage Banking The following table presents the Company's revenue from mortgage banking operations: (Dollars in thousands) Three Months Ended March 31, Mortgage banking revenue 2021 2020 Origination $ 376 $ 275 Gain on sale of loans held for sale 6,940 1,873 Servicing 1,501 1,601 Total gross mortgage revenue 8,817 3,749 Mortgage HFS and pipeline fair value adjustment (3,158) 1,266 MSR valuation adjustment, net of amortization 1,949 (5,228) MSR hedge impact (3,031) 2,982 Mortgage banking revenue $ 4,577 $ 2,769 Management uses mortgage-backed securities to mitigate the impact of changes in fair value of MSRs. See Note 8 - Derivative Financial Instruments for further information. Mortgage Servicing Rights Activity in MSRs was as follows: Three Months Ended March 31, (Dollars in thousands) 2021 2020 Balance at beginning of period $ 13,660 $ 20,697 Addition of servicing rights 1,943 653 Valuation adjustment, net of amortization 1,949 (5,228) Balance at end of period $ 17,552 $ 16,122 The Company receives annual servicing fee income approximating 0.28% of the outstanding balance of the underlying loans. In connection with the Company's activities as a servicer of mortgage loans, the investors and the securitization trusts have no recourse to the Company's assets for failure of debtors to pay when due. The Company is potentially subject to losses in its loan servicing portfolio due to loan foreclosures. The Company has obligations to either repurchase the outstanding principal balance of a loan or make the purchaser whole for the economic benefits of a loan if it is determined that the loan sold violated representations or warranties made by the Company and/or the borrower at the time of the sale, which the Company refers to as mortgage loan servicing putback expenses. Such representations and warranties typically include those made regarding loans that had missing or insufficient file documentation and/or loans obtained through fraud by borrowers or other third parties. Putback claims may be made until the loan is paid in full. When a putback claim is received, the Company evaluates the claim and takes appropriate actions based on the nature of the claim. The Company is required by the Federal National Mortgage Association and the Federal Home Loan Mortgage Corporation to provide a response to putback claims within 60 days of the date of receipt. The Company incurred $28,000 in mortgage loan servicing putback reserve expense for the three months ended March 31, 2021. At March 31, 2021, and December 31, 2020, the reserve for mortgage loan servicing putback expenses totaled $339,000 and $311,000, respectively. There is inherent uncertainty in reasonably estimating the requirement for reserves against future mortgage loan servicing putback expenses. Future putback expenses depend on many subjective factors, including the review procedures of the purchasers and the potential refinance activity on loans sold with servicing released and the subsequent consequences under the representations and warranties.

Borrowings

Borrowings	3 Months Ended
	Mar. 31, 2021
Debt Disclosure [Abstract]
Borrowings	Note 7 - Borrowings Borrowed funds are summarized as follows: (Dollars in thousands) March 31, 2021 December 31, 2020 Overnight repurchase agreements with depositors $ 6,321 $ 8,408 Short-term FHLB advances — 650,000 GNMA repurchase liability 62,244 55,485 Long-term FHLB advances 257,186 270,715 Total FHLB advances and other borrowings $ 325,751 $ 984,608 Subordinated debentures, net $ 157,239 $ 157,181 Additional details of certain FHLB advances are as follows: (Dollars in thousands) Amount Interest Rate Maturity Date At March 31, 2021: Long-term FHLB advance, callable quarterly, fixed rate $ 250,000 1.65 % 8/23/2033 At December 31, 2020: Short-term FHLB advance, fixed rate 650,000 0.10 1/4/2021 Long-term FHLB advance, callable quarterly, fixed rate 250,000 1.65 8/23/2033 Security for all indebtedness and outstanding commitments to the FHLB consists of a blanket floating lien on all of the Company's first mortgage loans, commercial real estate and other real estate loans, as well as the Company's investment in capital stock of the FHLB and deposit accounts at the FHLB. The net amounts available under the blanket floating lien at March 31, 2021 and December 31, 2020, were $1.05 billion and $456.9 million, respectively.

Derivative Financial Instrument

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Note 8 - Derivative Financial Instruments Risk Management Objective of Using Derivatives The Company enters into derivative financial instruments to manage risks related to differences in the amount, timing, and duration of the Company's known or expected cash receipts and its known or expected cash payments, as well as to manage changes in fair values of some assets which are marked at fair value through the consolidated statement of income on a recurring basis. Cash Flow Hedges of Interest Rate Risk The Company is a party to an interest rate swap agreement under which the Company receives interest at a variable rate and pays at a fixed rate. The derivative instrument represented by this swap agreement is designated as a cash flow hedge of the Company's forecasted variable cash flows under a variable-rate term borrowing agreement. During the term of the swap agreement, the effective portion of changes in the fair value of the derivative instrument are recorded in accumulated other comprehensive income and subsequently reclassified into earnings in the periods that the hedged forecasted variable-rate interest payments affected earnings. There was no ineffective portion of the change in fair value of the derivative recognized directly in earnings. The entire swap fair value will be reclassified into earnings before the expiration date of the swap agreement. Derivatives Not Designated as Hedges Customer interest rate derivative program The Company offers certain derivatives products, primarily interest rate swaps, directly to qualified commercial banking customers to facilitate their risk management strategies. In some instances, the Company acts only as an intermediary, simultaneously entering into offsetting agreements with unrelated financial institutions, thereby mitigating its net risk exposure resulting from such transactions without significantly impacting its results of operations. Because the interest rate derivatives associated with this program do not meet hedge accounting requirements, changes in the fair value of both the customer derivatives and any offsetting derivatives are recognized directly in earnings as a component of noninterest income. From time to time, the Company shares in credit risk on interest rate swap arrangements, by entering into risk participation agreements with syndication partners. These are accounted for at fair value and disclosed as risk participation derivatives. Mortgage banking derivatives The Company enters into certain derivative agreements as part of its mortgage banking and related risk management activities. These agreements include interest rate lock commitments on prospective residential mortgage loans and forward commitments to sell these loans to investors on a mandatory delivery basis. The Company also economically hedges the value of MSRs by entering into a series of commitments to purchase mortgage-backed securities in the future. Fair Values of Derivative Instruments on the Balance Sheet The following tables disclose the fair value of derivative instruments in the Company's balance sheets at March 31, 2021, and December 31, 2020, as well as the effect of these derivative instruments on the Company's consolidated statements of income for the three months ended March 31, 2021 and 2020: (Dollars in thousands) Notional Amounts (1) Fair Values Derivatives designated as cash flow hedging instruments: March 31, 2021 December 31, 2020 March 31, 2021 December 31, 2020 Interest rate swaps included in other (liabilities) $ 21,000 $ 21,000 $ (227) $ (706) Derivatives not designated as hedging instruments: Interest rate swaps included in other assets $ 334,916 $ 326,542 $ 13,881 $ 20,207 Interest rate swaps included in other liabilities 355,306 347,096 (14,735) (21,321) Risk participation derivatives included in accrued expenses and other liabilities on the consolidated balance sheets 63,374 63,374 (13) (18) Forward commitments to purchase mortgage-backed securities included in other (liabilities) assets 78,000 107,000 (457) (317) Forward commitments to sell residential mortgage loans included in other liabilities 115,000 107,200 1,704 (658) Interest rate-lock commitments on residential mortgage loans included in other assets 80,273 79,554 2,092 3,487 $ 1,026,869 $ 1,030,766 $ 2,472 $ 1,380 ____________________________ (1) Notional or contractual amounts, which represent the extent of involvement in the derivatives market, are used to determine the contractual cash flows required in accordance with the terms of the agreement. These amounts are typically not exchanged, significantly exceed amounts subject to credit or market risk and are not reflected in the consolidated balance sheets. The weighted-average rates paid and received for interest rate swaps at March 31, 2021, were as follows: Weighted-Average Interest Rate Interest rate swaps: Paid Received Cash flow hedges 4.81 % 2.93 % Non-hedging interest rate swaps - financial institution counterparties 4.49 2.70 Non-hedging interest rate swaps - customer counterparties 2.75 4.51 Gains and losses recognized on derivative instruments not designated as hedging instruments are as follows: (Dollars in thousands) Three Months Ended March 31, Derivatives not designated as hedging instruments: 2021 2020 Amount of gain (loss) recognized in mortgage banking revenue (1) $ (1,206) $ 2,513 Amount of (loss) gain recognized in other non-interest income 307 (685) ____________________________ (1) Gains and losses on these instruments are largely offset by market fluctuations in mortgage servicing rights. See Note 6 - Mortgage Banking for more information on components of mortgage banking revenue. Some interest rate swaps included in other assets were subject to a master netting arrangement with the counterparty in all years presented and could be offset against some amounts included in interest rate swaps included in other liabilities. The Company has chosen not to net these exposures in the consolidated balance sheets, and any impact of netting these amounts would not be significant. At March 31, 2021, and December 31, 2020, the Company had cash collateral on deposit with swap counterparties totaling $12.8 million and $22.2 million, respectively. These amounts are included in interest-bearing deposits in banks in the consolidated balance sheets and are considered restricted cash until such time as the underlying swaps are settled.

Stock and Incentive Compensatio

Stock and Incentive Compensation Plans	3 Months Ended
	Mar. 31, 2021
Share-based Payment Arrangement [Abstract]
Stock and Incentive Compensation Plans	Note 9 - Stock and Incentive Compensation Plans The Company has granted, and currently has outstanding, stock and incentive compensation awards subject to the provisions of the Company's 2012 Stock Incentive Plan (the "2012 Plan"). Additionally, awards have been issued prior to the establishment of the 2012 Plan, some of which were still outstanding at March 31, 2021. The 2012 Plan is designed to provide flexibility to the Company regarding its ability to motivate, attract and retain the services of key officers, employees and directors. The 2012 Plan allows the Company to make grants of incentive stock options, non-qualified stock options, stock appreciation rights, restricted stock awards, restricted stock units, dividend equivalent rights, performance unit awards or any combination thereof. At March 31, 2021, the maximum number of shares of the Company's common stock available for issuance under the 2012 Plan was 915,819 shares. Share-based compensation cost charged to income for the three months ended March 31, 2021, and 2020, is presented below. There was no stock option expense for any of the periods shown. Three Months Ended March 31, (Dollars in thousands) 2021 2020 Restricted stock $ 614 $ 537 Related tax benefits recognized in net income 129 113 Restricted Stock Grants The Company's restricted stock grants are time-vested awards and are granted to the Company's Board of Directors, executives and senior management team. The service period in which time-vested awards are earned ranges from one The following table summarizes the Company's time-vested award activity: Three Months Ended March 31, 2021 2020 Shares Weighted Average Grant-Date Fair Value Shares Weighted Average Grant-Date Fair Value Nonvested shares, January 1, 103,359 $ 31.51 149,449 $ 35.15 Granted 6,286 33.82 — — Vested (1,782) 27.20 (2,073) 25.81 Forfeited (946) 24.69 (4,129) 37.14 Nonvested shares, March 31, 106,917 31.78 143,247 35.23 At March 31, 2021, there was $1.9 million of total unrecognized compensation cost related to nonvested restricted shares awarded under the 2012 Plan. That cost is expected to be recognized over a weighted average period of 2.0 years. Stock Option Grants The Company issues common stock options to select officers and employees through individual agreements and as a result of obligations assumed in association with certain business combinations. As a result, both incentive and nonqualified stock options have been issued and may be issued in the future. The exercise price of each option varies by agreement and is based on either the fair value of the stock at the date of the grant in circumstances where option grants occurred or based on the previously committed exercise price in the case of options acquired through merger. No outstanding stock option has a term that exceeds twenty years, and all of the outstanding options are fully vested. The Company recognizes compensation cost for stock option grants over the required service period based upon the grant date fair-value, which is established using a Black-Scholes valuation model. The Black-Scholes valuation model uses assumptions of risk-free interest rate, expected term of stock options, expected stock price volatility and expected dividends. Forfeitures are recognized as they occur. The table below summarizes the status of the Company's stock options and changes during the three months ended March 31, 2021 and 2020. (Dollars in thousands, except per share amounts) Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term Aggregate Intrinsic Value Three Months Ended March 31, 2021 Outstanding at January 1, 2021 224,000 $ 10.86 4.92 $ 3,789 Exercised (14,800) 9.89 — — Outstanding and exercisable at March 31, 2021 209,200 10.93 5.05 6,587 Three Months Ended March 31, 2020 Outstanding at January 1, 2020 254,000 $ 10.55 5.81 $ 6,932 Exercised (30,000) 8.25 — — Outstanding and exercisable at March 31, 2020 224,000 10.86 5.67 2,104

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	3 Months Ended
	Mar. 31, 2021
Equity [Abstract]
Accumulated Other Comprehensive Income	Note 10 - Accumulated Other Comprehensive Income Accumulated other comprehensive income ("AOCI") includes the after-tax change in unrealized gains and losses on AFS securities and cash flow hedging activities. (Dollars in thousands) Unrealized Gain (Loss) on AFS Securities Unrealized (Loss) Gain on Cash Flow Hedges Accumulated Other Comprehensive Income Balance at January 1, 2021 $ 26,206 $ (557) $ 25,649 Net change (13,843) 379 (13,464) Balance at March 31, 2021 $ 12,363 $ (178) $ 12,185 Balance at January 1, 2020 $ 6,412 $ (79) $ 6,333 Net change 10,044 (555) 9,489 Balance at March 31, 2020 $ 16,456 $ (634) $ 15,822

Capital and Regulatory Matters

Capital and Regulatory Matters	3 Months Ended
	Mar. 31, 2021
Banking Regulation [Abstract]
Capital and Regulatory Matters	Note 11 - Capital and Regulatory Matters The Company (on a consolidated basis) and the Bank are subject to various regulatory capital requirements administered by federal and state banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company's consolidated financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company and the Bank must meet specific capital guidelines that involve quantitative measures of assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. The Company is subject to the Basel III regulatory capital framework ("Basel III Capital Rules"), which includes a 2.5% capital conservation buffer effective for the Company as of January 1, 2019. The capital conservation buffer is designed to absorb losses during periods of economic stress and requires increased capital levels for the purpose of capital distributions and other payments. Failure to meet the full amount of the buffer will result in restrictions on the Company's ability to make capital distributions, which includes dividend payments and stock repurchases and to pay discretionary bonuses to executive officers. Quantitative measures established by regulation to ensure capital adequacy require the Company and the Bank to maintain minimum amounts and ratios (set forth in the table below) of total, common equity Tier 1 capital, Tier 1 capital, Tier 1 capital, and total capital (as defined in the regulations) to risk-weighted assets (as defined), and of Tier 1 capital (as defined) to average assets (as defined). Management believes, at March 31, 2021, and December 31, 2020, that the Company and the Bank met all capital adequacy requirements to which they are subject, including the capital buffer requirement. At March 31, 2021, and December 31, 2020, the Bank's capital ratios exceeded those levels necessary to be categorized as "well capitalized" under the regulatory framework for prompt corrective action. To be categorized as "well capitalized," the Bank must maintain minimum total risk based, common equity Tier 1 capital, Tier 1 risk based and Tier 1 leverage ratios as set forth in the table below. A final rule adopted by the federal banking agencies in February 2019 provides banking organizations with the option to phase in, over a three-year period, the adverse day-one regulatory capital effects of the adoption of CECL. In addition, on March 27, 2020, the federal banking agencies issued an interim final rule that gives banking organizations that implement CECL before the end of 2020 the option to delay for two years CECL’s adverse effects on regulatory capital. Origin elected to adopt CECL in the first quarter of 2020 and exercised the option to delay the estimated impact of the adoption of CECL on our regulatory capital for two years (from January 2020 through December 31, 2021), which resulted in a 19 basis point benefit to the common equity Tier 1 capital to risk-weighted assets capital ratio at December 31, 2020. The two-year delay will be followed by the three-year transition period of CECL's initial impact on our regulatory capital (from January 1, 2022 through December 31, 2024). The actual capital amounts and ratios of the Company and Bank at March 31, 2021, and December 31, 2020, are presented in the following table: (Dollars in thousands) March 31, 2021 Actual Minimum Capital Required - Basel III To be Well Capitalized Under Prompt Corrective Action Provisions Common Equity Tier 1 Capital to Risk-Weighted Assets Amount Ratio Amount Ratio Amount Ratio Origin Bancorp, Inc. $ 626,931 10.17 % $ 431,516 7.00 % N/A N/A Origin Bank 660,585 10.74 430,549 7.00 $ 399,795 6.50 % Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 636,315 10.32 524,097 8.50 N/A N/A Origin Bank 660,585 10.74 522,809 8.50 492,056 8.00 Total Capital to Risk-Weighted Assets Origin Bancorp, Inc. 858,644 13.92 647,684 10.50 N/A N/A Origin Bank 804,330 13.08 645,678 10.50 614,931 10.00 Leverage Ratio Origin Bancorp, Inc. 636,315 8.67 293,571 4.00 N/A N/A Origin Bank 660,585 9.02 292,942 4.00 366,178 5.00 December 31, 2020 Common Equity Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 604,306 9.95 425,012 7.00 N/A N/A Origin Bank 637,863 10.53 424,010 7.00 393,724 6.50 Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 613,682 10.11 516,107 8.50 N/A N/A Origin Bank 637,863 10.53 514,870 8.50 484,583 8.00 Total Capital to Risk-Weighted Assets Origin Bancorp, Inc. 837,058 13.79 637,539 10.50 N/A N/A Origin Bank 782,503 12.92 636,019 10.50 605,732 10.00 Leverage Ratio Origin Bancorp, Inc. 613,682 8.62 284,771 4.00 N/A N/A Origin Bank 637,863 8.99 283,842 4.00 354,802 5.00 In the ordinary course of business, the Company depends on dividends from the Bank to provide funds for the payment of dividends to stockholders and to provide for other cash requirements. Banking regulations may limit the amount of dividends that may be paid. Approval by regulatory authorities is required if the effect of dividends declared would cause the regulatory capital of the Bank to fall below specified minimum levels. Approval is also required if dividends declared and paid exceed the Bank's year-to-date net income combined with the retained net income for the preceding year, which was $43.4 million at March 31, 2021. Stock Repurchases During the first quarter of 2021, the Company repurchased a total of 37,568 shares of its common stock pursuant to its stock buyback program at an average price per share of $33.42, for an aggregate purchase price of $1.3 million. Prior to 2021, the Company had cumulatively repurchased an aggregate 330,868 common stock shares for a total purchase price of $10.8 million under the stock buyback program. As of March 31, 2021, the Company's board of directors has approved approximately $28.0 million remaining to be purchased under the program.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 12 - Commitments and Contingencies Credit Related Commitments In the normal course of business, the Company enters into financial instruments, such as commitments to extend credit and letters of credit, to meet the financing needs of its customers. Such instruments are not reflected in the accompanying consolidated financial statements until they are funded, although they expose the Company to varying degrees of credit risk and interest rate risk in much the same way as funded loans. Commitments to extend credit include revolving commercial credit lines, nonrevolving loan commitments issued mainly to finance the acquisition and development or construction of real property or equipment, and credit card and personal credit lines. The availability of funds under commercial credit lines and loan commitments generally depends on whether the borrower continues to meet credit standards established in the underlying contract and has not violated other contractual conditions. Loan commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee by the borrower. Credit card and personal credit lines are generally subject to cancellation if the borrower's credit quality deteriorates. A number of commercial and personal credit lines are used only partially or, in some cases, not at all before they expire, and the total commitment amounts do not necessarily represent future cash requirements of the Company. A substantial majority of the letters of credit are standby agreements that obligate the Company to fulfill a customer's financial commitments to a third party if the customer is unable to perform. The Company issues standby letters of credit primarily to provide credit enhancement to its customers' other commercial or public financing arrangements and to help them demonstrate financial capacity to vendors of essential goods and services. The contract amounts of these instruments reflect the Company's exposure to credit risk. The Company undertakes the same credit evaluation in making loan commitments and assuming conditional obligations as it does for on-balance sheet instruments and may require collateral or other credit support. These off-balance sheet financial instruments are summarized below: (Dollars in thousands) March 31, 2021 December 31, 2020 Commitments to extend credit $ 1,390,528 $ 1,341,501 Standby letters of credit 48,967 42,911 In addition to the above, the Company guarantees the credit card debt of certain customers to the merchant bank that issues the credit cards. These guarantees are in place for as long as the guaranteed credit card is open. At March 31, 2021, and December 31, 2020, these credit card guarantees totaled $205,000 and $200,000, respectively. This amount represents the maximum potential amount of future payments under the guarantee for which the Company would be responsible in the event of customer non-payment. At March 31, 2021, the Company held 37 unfunded letters of credit from the FHLB totaling $590.9 million with expiration dates ranging from April 20, 2021, to March 22, 2023. At December 31, 2020, the Company held 35 unfunded letters of credit from the FHLB totaling $527.4 million with expiration dates ranging from January 20, 2021, to November 4, 2022. Management establishes an asset-specific allowance for certain lending-related commitments and computes a formula-based allowance for performing consumer and commercial lending-related commitments. These are computed using a methodology similar to that used for the commercial loan portfolio, modified for expected maturities and probabilities of drawdown. The reserve for lending-related commitments was $2.4 million and $2.3 million at March 31, 2021, and December 31, 2020, respectively, and is included in accrued expenses and other liabilities in the accompanying consolidated balance sheets. Loss Contingencies From time to time the Company is also party to various legal actions arising in the ordinary course of business. At this time, management does not expect that loss contingencies, if any, arising from any such proceedings, either individually or in the aggregate, would have a material adverse effect on the consolidated financial position or liquidity of the Company.

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation . The consolidated financial statements in this quarterly report on Form 10-Q include the accounts of the Company and all other entities in which Origin Bancorp, Inc. has a controlling financial interest, including the Bank and Davison Insurance Agency, LLC ("Davison Insurance"), doing business as Thomas & Farr Agency, and Reeves, Coon and Funderburg ("RCF"). All significant intercompany balances and transactions have been eliminated in consolidation. The Company's accounting and financial reporting policies conform, in all material respects, to generally accepted accounting principles in the United States ("U.S. GAAP") and to general practices within the financial services industry. The Company has evaluated subsequent events for potential recognition and/or disclosure through the date these consolidated financial statements were issued. The consolidated financial statements in this quarterly report on Form 10-Q have not been audited by an independent registered public accounting firm, excluding the figures as of December 31, 2020, but in the opinion of management, reflect all adjustments necessary for a fair presentation of the Company's financial position and results of operations for the periods presented. These consolidated financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") and with the rules and regulations of the Securities and Exchange Commission (the "SEC") for interim financial reporting. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. These consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2020, included in the Company's annual report on Form 10-K ("2020 Form 10-K") filed with the SEC. Operating results for the interim periods disclosed herein are not necessarily indicative of results that may be expected for a full year. Certain prior period amounts have been reclassified to conform to the current year financial statement presentations. These reclassifications did not impact previously reported net income or comprehensive income.
Use of Estimates	Use of Estimates . The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions based on available information that affect the amounts reported in the financial statements and disclosures provided, including the accompanying notes, and actual results could differ. Material estimates that are particularly susceptible to change include the allowance for credit losses for loans and available for sale securities; fair value measurements of assets and liabilities; and income taxes. Estimates and assumptions are reviewed periodically and the effects of revisions are reflected in the Company's consolidated financial statements in the period they are deemed necessary. While management uses its best judgment, actual results could differ from those estimates.
Effect of Recently Adopted Accounting Standards	ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. ASU 2019-12 simplifies the accounting for income taxes by eliminating some exceptions to the general approach in Accounting Standards Codification (ASC) 740, Income Taxes. It also clarifies certain aspects of the existing guidance to promote more consistent application, among other things. The amendments were implemented effective January 1, 2021. Implementation of this ASU did not materially impact the consolidated financial statements or disclosures.
Loans , Nonaccrual Status	All interest accrued but not received for loans placed on nonaccrual status is reversed against interest income. Subsequent receipts on nonaccrual loans are recorded as a reduction of principal, and interest income is recorded only after principal recovery is reasonably assured.
Loans Held For Sale	The Company elects the fair value option for recording residential mortgage loans held for sale, as well as certain commercial real estate loans in accordance with U.S. GAAP.
Fair Value of Financial Instruments	Fair value is the exchange price that is expected to be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Certain assets and liabilities are recorded in the Company's consolidated financial statements at fair value. Some are recorded on a recurring basis and some on a non-recurring basis. The Company utilizes fair value measurement to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. The determination of fair values of financial instruments often requires the use of estimates. In cases where quoted market values in an active market are not available, the Company utilizes valuation techniques that are consistent with the market approach, the income approach and/or the cost approach to estimate the fair values of its financial instruments. Such valuation techniques are consistently applied. A hierarchy for fair value has been established which categorizes the valuation techniques into three levels used to measure fair value. The three levels are as follows: Level 1 - Fair value is based on unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 - Fair value is based on significant other observable inputs that are generally determined based on a single price for each financial instrument provided to the Company by an unrelated third-party pricing service and is based on one or more of the following: • Quoted prices for similar, but not identical, 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, such as interest rate and yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates; and • Other inputs derived from or corroborated by observable market inputs. Securities Available for Sale Securities classified as available for sale are reported at fair value utilizing Level 1, Level 2 or Level 3 inputs. For Level 2 securities, 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, market consensus prepayment speeds, credit information and the security's terms and conditions, among other things. In order to ensure the fair values are consistent with Accounting Standards Codification ("ASC") 820, Fair Value Measurements and Disclosures , the Company periodically checks the fair value by comparing them to other pricing sources, such as Bloomberg LP. The third-party pricing service is subject to an annual review of internal controls in accordance with the Statement on Standards for Attestation Engagements No. 16, which was made available to the Company. In certain cases where Level 2 inputs are not available, securities are classified within Level 3 of the hierarchy. Mortgage Servicing Rights ("MSRs") Derivatives Fair values for interest rate swap agreements are based upon the amounts that would be required to settle the contracts. Fair values for derivative loan commitments and forward loan sale commitments are based on fair values of the underlying mortgage loans and the probability of such commitments being exercised. Significant management judgment and estimation is required in determining these fair value measurements. Certain assets are measured at fair value on a recurring basis due to the Company's election to adopt fair value accounting treatment for those assets. This election allows for a more effective offset of the changes in fair values of the assets and the derivative instruments used to economically hedge them without the burden of complying with the requirements for hedge accounting under ASC 815, Derivatives and Hedging. Securities at Fair Value through Income Securities carried at fair value through income are valued using a discounted cash flow with a credit spread applied to each instrument based on the credit worthiness of each issuer. Credit spreads ranged from 83 to 227 basis points at both March 31, 2021, and December 31, 2020. The Company believes the fair value approximates an exit price. Loans Held for Sale Fair values for loans held for sale are established using anticipated sale prices for loans allocated to a sale commitment, and those unallocated to a commitment are valued based on the interest rate and term for similar loans allocated. The Company believes the fair value approximates an exit price. LHFI For LHFI for which the fair value option has been elected, fair values are calculated using a discounted cash flow model with inputs including observable interest rate curves and unobservable credit adjustment spreads based on credit risk inherent in the loan. Credit spreads ranged from 290 to 353 basis points at March 31, 2021, and 290 to 413 basis points at December 31, 2020. The Company believes the fair value approximates an exit price. Fair Value of Assets Recorded on a Nonrecurring Basis Equity Securities without Readily Determinable Fair Values Equity securities without readily determinable fair values totaled $47.3 million and $62.6 million, at March 31, 2021, and December 31, 2020, respectively, and are shown on the face of the consolidated balance sheets. The majority of the Company's equity investments qualify for the practical expedient allowed for equity securities without a readily determinable fair value, such that the Company has elected to carry these securities at cost adjusted for any observable transactions during the period, less any impairment. To date, no impairment has been recorded on the Company's investments in equity securities that do not have readily determinable fair values. Government National Mortgage Association Repurchase Asset The Company recorded $62.2 million and $55.5 million, respectively, at March 31, 2021, and December 31, 2020, for Government National Mortgage Association ("GNMA") repurchase assets included in mortgage loans held for sale on the consolidated balance sheets. The assets are valued at the lower of cost or market and, where market is lower than cost, valued using anticipated sale prices for loans allocated to a sale commitment, and those unallocated to a commitment are valued based on the interest rate and term for similar loans allocated. The Company believes the fair value approximates an exit price. Please see Note 6 - Mortgage Banking for more information on the GNMA repurchase asset. Collateral Dependent Loans with Credit Losses Loans for which it is probable that the Company will not collect all principal and interest due according to contractual terms are measured to determine if any credit loss exists. Allowable methods for determining the amount of credit loss includes estimating the fair value using the fair value of the collateral for collateral-dependent loans. If the loan is identified as collateral-dependent, the fair value method of measuring the amount of credit loss is utilized. This method requires obtaining a current independent appraisal of the collateral and applying a discount factor to the value. Loans that have experienced a credit loss that are collateral-dependent are classified within Level 3 of the fair value hierarchy when the credit loss is determined using the fair value method. The fair value of loans that have experienced a credit loss with specific allocated losses was approximately $15.4 million and $12.3 million at March 31, 2021, and December 31, 2020, respectively. Non-Financial Assets
Derivative Financial Instruments	Risk Management Objective of Using Derivatives The Company enters into derivative financial instruments to manage risks related to differences in the amount, timing, and duration of the Company's known or expected cash receipts and its known or expected cash payments, as well as to manage changes in fair values of some assets which are marked at fair value through the consolidated statement of income on a recurring basis. Cash Flow Hedges of Interest Rate Risk The Company is a party to an interest rate swap agreement under which the Company receives interest at a variable rate and pays at a fixed rate. The derivative instrument represented by this swap agreement is designated as a cash flow hedge of the Company's forecasted variable cash flows under a variable-rate term borrowing agreement. During the term of the swap agreement, the effective portion of changes in the fair value of the derivative instrument are recorded in accumulated other comprehensive income and subsequently reclassified into earnings in the periods that the hedged forecasted variable-rate interest payments affected earnings. There was no ineffective portion of the change in fair value of the derivative recognized directly in earnings. The entire swap fair value will be reclassified into earnings before the expiration date of the swap agreement. Derivatives Not Designated as Hedges Customer interest rate derivative program The Company offers certain derivatives products, primarily interest rate swaps, directly to qualified commercial banking customers to facilitate their risk management strategies. In some instances, the Company acts only as an intermediary, simultaneously entering into offsetting agreements with unrelated financial institutions, thereby mitigating its net risk exposure resulting from such transactions without significantly impacting its results of operations. Because the interest rate derivatives associated with this program do not meet hedge accounting requirements, changes in the fair value of both the customer derivatives and any offsetting derivatives are recognized directly in earnings as a component of noninterest income. From time to time, the Company shares in credit risk on interest rate swap arrangements, by entering into risk participation agreements with syndication partners. These are accounted for at fair value and disclosed as risk participation derivatives. Mortgage banking derivatives The Company enters into certain derivative agreements as part of its mortgage banking and related risk management activities. These agreements include interest rate lock commitments on prospective residential mortgage loans and forward commitments to sell these loans to investors on a mandatory delivery basis. The Company also economically hedges the value of MSRs by entering into a series of commitments to purchase mortgage-backed securities in the future.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	(Dollars in thousands, except per share amounts) Three Months Ended March 31, Numerator: 2021 2020 Net income (basic and diluted) $ 25,513 $ 753 Denominator: Weighted average common shares outstanding 23,393,356 23,353,601 Dilutive effect of stock-based awards 197,074 176,611 Weighted average diluted common shares outstanding 23,590,430 23,530,212 Basic earnings per common share $ 1.09 $ 0.03 Diluted earnings per common share 1.08 0.03

Securities (Tables)

Securities (Tables)	3 Months Ended
	Mar. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Summary of Amortized Cost and Estimated Fair Value of Securities	The following table is a summary of the amortized cost and estimated fair value, including the allowance for credit losses and gross unrealized gains and losses, of available for sale, held to maturity and securities carried at fair value through income for the dates indicated: (Dollars in thousands) March 31, 2021 Amortized Gross Gross Fair Allowance for Credit Losses Net Carrying Amount Available for sale: State and municipal securities $ 401,450 $ 13,364 $ (5,641) $ 409,173 $ — $ 409,173 Corporate bonds 68,293 2,056 (386) 69,963 — 69,963 U.S. government and agency securities 5,811 3 (177) 5,637 — 5,637 Commercial mortgage-backed securities 9,088 232 (357) 8,963 — 8,963 Residential mortgage-backed securities 200,265 5,738 (943) 205,060 — 205,060 Residential collateralized mortgage obligations 193,730 1,491 (1,415) 193,806 — 193,806 Asset-backed securities 85,938 1,593 (1) 87,530 — 87,530 Total $ 964,575 $ 24,477 $ (8,920) $ 980,132 $ — $ 980,132 Held to maturity: State and municipal securities $ 38,049 $ 2,751 $ — $ 40,800 $ (66) $ 37,983 Securities carried at fair value through income: State and municipal securities (1) $ 10,618 $ — $ — $ 11,077 $ — $ 11,077 December 31, 2020 Available for sale: State and municipal securities $ 420,559 $ 21,884 $ (258) $ 442,185 $ — $ 442,185 Corporate bonds 64,313 1,762 (137) 65,938 — 65,938 U.S. government and agency securities 851 3 (5) 849 — 849 Commercial mortgage-backed securities 10,814 266 — 11,080 — 11,080 Residential mortgage-backed securities 207,742 7,441 (232) 214,951 — 214,951 Residential collateralized mortgage obligations 193,865 1,739 (261) 195,343 — 195,343 Asset-backed securities 73,451 877 — 74,328 — 74,328 Total $ 971,595 $ 33,972 $ (893) $ 1,004,674 $ — $ 1,004,674 Held to maturity: State and municipal securities $ 38,194 $ 3,011 $ — $ 41,205 $ (66) $ 38,128 Securities carried at fair value through income: State and municipal securities (1) $ 10,618 $ — $ — $ 11,554 $ — $ 11,554 ____________________________ (1) Securities carried at fair value through income have no unrealized gains or losses at the balance sheet date as all changes in value have been recognized in the consolidated statements of income. See Note 5 - Fair Value of Financial Instruments for more information.
Schedule of Securities with Unrealized Loss	Securities with unrealized losses at March 31, 2021, and December 31, 2020, aggregated by investment category and those individual securities that have been in a continuous unrealized loss position for less than 12 months, and for 12 months or more, were as follows. (Dollars in thousands) Less than 12 Months 12 Months or More Total March 31, 2021 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Available for sale: State and municipal securities $ 147,815 $ (5,601) $ 1,520 $ (40) $ 149,335 $ (5,641) Corporate bonds 24,249 (386) — — 24,249 (386) U.S. government and agency securities 4,851 (173) 523 (4) 5,374 (177) Commercial mortgage-backed securities 6,475 (357) — — 6,475 (357) Residential mortgage-backed securities 54,673 (943) — — 54,673 (943) Residential collateralized mortgage obligations 90,832 (1,415) — — 90,832 (1,415) Asset-backed securities 6,868 (1) — — 6,868 (1) Total $ 335,763 $ (8,876) $ 2,043 $ (44) $ 337,806 $ (8,920) Held to maturity: State and municipal securities $ — $ — $ — $ — $ — $ — December 31, 2020 Available for sale: State and municipal securities $ 21,979 $ (258) $ — $ — $ 21,979 $ (258) Corporate bonds 30,513 (137) — — 30,513 (137) U.S. government and agency securities — — 568 (5) 568 (5) Residential mortgage-backed securities 23,178 (232) — — 23,178 (232) Residential collateralized mortgage obligations 43,911 (261) — — 43,911 (261) Total $ 119,581 $ (888) $ 568 $ (5) $ 120,149 $ (893) Held to maturity: State and municipal securities $ — $ — $ — $ — $ — $ —
Schedule of Allowance for Credit Losses for Held -to -Maturity Securities	The following table presents the activity in the allowance for credit losses for held-to-maturity debt securities. (Dollars in thousands) Municipal Securities Allowance for credit losses: Balance at January 1, 2021 $ 66 Credit loss expense — Balance at March 31, 2021 $ 66 Balance at January 1, 2020 $ — Impact of adopting ASC 326 96 Credit loss expense — Balance at March 31, 2020 $ 96
Proceeds from Sales of Securities Available for Sale and Gross Gains	Proceeds from sales and calls, and related gross gains and losses of securities available for sale, are shown below. Three Months Ended March 31, (Dollars in thousands) 2021 2020 Proceeds from sales $ 40,493 $ 22,375 Gross realized gains 1,700 103 Gross realized losses (32) (49)
Securities Classified by Contractual Maturity	The following table presents the amortized cost and fair value of securities available for sale and held to maturity at March 31, 2021, grouped by contractual maturity. Mortgage-backed securities, collateralized mortgage obligations and asset-backed securities, which do not have contractual payments due at a single maturity date, are shown separately. Actual maturities for mortgage-backed securities, collateralized mortgage obligations and asset-backed securities will differ from contractual maturities as a result of prepayments made on the underlying loans. (Dollars in thousands) Held to Maturity Available for Sale March 31, 2021 Amortized Cost Fair Value Amortized Cost Fair Value Due in one year or less $ 12,857 $ 12,862 $ 4,725 $ 4,772 Due after one year through five years — — 52,044 56,192 Due after five years through ten years 25,192 27,938 111,175 113,565 Due after ten years — — 307,610 310,244 Commercial mortgage-backed securities — — 9,088 8,963 Residential mortgage-backed securities — — 200,265 205,060 Residential collateralized mortgage obligations — — 193,730 193,806 Asset-backed securities — — 85,938 87,530 Total $ 38,049 $ 40,800 $ 964,575 $ 980,132
Securities Pledged as Collateral	The following table presents carrying amounts of securities pledged as collateral for deposits and repurchase agreements for the period ends presented. (Dollars in thousands) March 31, 2021 December 31, 2020 Carrying value of securities pledged to secure public deposits $ 232,179 $ 289,537 Carrying value of securities pledged to repurchase agreements 9,949 10,982

Loans (Tables)

Loans (Tables)	3 Months Ended
	Mar. 31, 2021
Receivables [Abstract]
Schedule of Loans	Loans consist of the following: (Dollars in thousands) March 31, 2021 December 31, 2020 Loans held for sale $ 144,950 $ 191,512 LHFI: Loans secured by real estate: Commercial real estate $ 1,441,071 $ 1,370,928 Construction/land/land development 548,236 531,860 Residential real estate 904,753 885,120 Total real estate 2,894,060 2,787,908 Commercial and industrial (1) 1,834,498 1,817,862 Mortgage warehouse lines of credit 1,090,347 1,084,001 Consumer 17,277 17,991 Total loans accounted for at amortized cost 5,836,182 5,707,762 Loans accounted for at fair value 13,578 17,011 Total LHFI (2) 5,849,760 5,724,773 Less: Allowance for loan losses 85,136 86,670 LHFI, net $ 5,764,624 $ 5,638,103 ____________________________ (1) Includes $584.1 million and $546.5 million of PPP loans at March 31, 2021 and December 31, 2020, respectively. (2) Includes net deferred loan fees of $15.9 million and $13.7 million at March 31, 2021, and December 31, 2020, respectively.
Recorded Investment in Loans by Credit Quality Indicator	The following is a summary description of the Company's internal risk ratings: • Pass (1-6) Loans within this risk rating are further categorized as follows: Minimal risk (1) Well-collateralized by cash equivalent instruments held by the Bank. Moderate risk (2) Borrowers with excellent asset quality and liquidity. Borrowers' capitalization and liquidity exceed industry norms. Borrowers in this category have significant levels of liquid assets and have a low level of leverage. Better than average risk (3) Borrowers with strong financial strength and excellent liquidity that consistently demonstrate strong operating performance. Borrowers in this category generally have a sizable net worth that can be converted into liquid assets within 12 months. Average risk (4) Borrowers with sound credit quality and financial performance, including liquidity. Borrowers are supported by sufficient cash flow coverage generated through operations across the full business cycle. Marginally acceptable risk (5) Loans generally meet minimum requirements for an acceptable loan in accordance with lending policy, but possess one or more attributes that cause the overall risk profile to be higher than the majority of newly approved loans. Watch (6) A passing loan with one or more factors that identify a potential weakness in the overall ability of the borrower to repay the loan. These weaknesses are generally mitigated by other factors that reduce the risk of delinquency or loss. • Special Mention (7) This grade is intended to be temporary and includes borrowers whose credit quality has deteriorated and is at risk of further decline. • Substandard (8) This grade includes "Substandard" loans under regulatory guidelines. Substandard loans exhibit a well-defined weakness that jeopardizes debt repayment in accordance with contractual agreements, even though the loan may be performing. These obligations are characterized by the distinct possibility that a loss may be incurred if these weaknesses are not corrected and repayment may be dependent upon collateral liquidation or secondary source of repayment. • Doubtful (9) This grade includes "Doubtful" loans under regulatory guidelines. Such loans are placed on nonaccrual status and repayment may be dependent upon collateral with no readily determinable valuation or valuations that are highly subjective in nature. Repayment for these loans is considered improbable based on currently existing facts and circumstances. • Loss (0) This grade includes "Loss" loans under regulatory guidelines. Loss loans are charged-off or written down when repayment is not expected. In connection with the review of the loan portfolio, the Company considers risk elements attributable to particular loan types or categories in assessing the quality of individual loans. The list of loans to be reviewed for possible individual evaluation consists of nonaccrual commercial loans over $100,000 with direct exposure, unsecured loans over 90 days past due, commercial loans classified substandard or worse over $100,000 with direct exposure, troubled debt restructurings ("TDRs"), consumer loans greater than $100,000 with a FICO score under 625, loans greater than $100,000 in which the borrower has filed bankruptcy, and all loans 180 days or more past due. Loans under $50,000 will be evaluated collectively in designated pools unless a loss exposure has been identified. Some additional risk elements considered by loan type include: • for commercial real estate loans, the debt service coverage ratio, operating results of the owner in the case of owner occupied properties, the loan to value ratio, the age and condition of the collateral and the volatility of income, property value and future operating results typical of properties of that type; • for construction, land and land development loans, the perceived feasibility of the project, including the ability to sell developed lots or improvements constructed for resale or the ability to lease property constructed for lease, the quality and nature of contracts for presale or prelease, if any, experience and ability of the developer and loan to value ratio; • for residential mortgage loans, the borrower's ability to repay the loan, including a consideration of the debt to income ratio and employment and income stability, the loan-to-value ratio, and the age, condition and marketability of the collateral; and • for commercial and industrial loans, the debt service coverage ratio (income from the business in excess of operating expenses compared to loan repayment requirements), the operating results of the commercial, industrial or professional enterprise, the borrower's business, professional and financial ability and expertise, the specific risks and volatility of income and operating results typical for businesses in that category and the value, nature and marketability of collateral. The following table reflects recorded investments in loans by credit quality indicator and origination year at March 31, 2021, excluding loans held for sale and loans accounted for at fair value. The Company had an immaterial amount of revolving loans converted to term loans at March 31, 2021. Term Loans Amortized Cost Basis by Origination Year (Dollars in thousands) 2021 2020 2019 2018 2017 Prior Revolving Loans Amortized Cost Basis Total Commercial real estate: (1) Pass $ 130,211 $ 394,179 $ 290,815 $ 289,673 $ 148,317 $ 124,443 $ 21,263 $ 1,398,901 Special mention 4,383 — — 1,154 20,707 — 2,110 28,354 Classified 1,904 3,473 1,587 2,782 1,427 2,529 114 13,816 Total commercial real estate loans $ 136,498 $ 397,652 $ 292,402 $ 293,609 $ 170,451 $ 126,972 $ 23,487 $ 1,441,071 Current period gross charge-offs $ — $ — $ — $ — $ 2 $ 26 $ — $ 28 Current period gross recoveries — — — — — 3 — 3 Current period net charge-offs (recoveries) $ — $ — $ — $ — $ 2 $ 23 $ — $ 25 (1) Excludes $13.6 million of commercial real estate loans at fair value, which are not included in the loss estimation methodology due to the fair value option election. Construction/land/land development: Pass $ 40,706 $ 193,152 $ 142,872 $ 119,935 $ 12,716 $ 2,505 $ 17,490 $ 529,376 Special mention — — 10,242 135 1,003 — — 11,380 Classified 306 317 1,079 716 1,508 291 3,263 7,480 Total construction/land/land development loans $ 41,012 $ 193,469 $ 154,193 $ 120,786 $ 15,227 $ 2,796 $ 20,753 $ 548,236 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Current period gross recoveries — — — — — — — — Current period net charge-offs (recoveries) $ — $ — $ — $ — $ — $ — $ — $ — Residential real estate: Pass $ 53,633 $ 354,359 $ 118,406 $ 114,721 $ 101,869 $ 89,887 $ 52,920 $ 885,795 Special mention 1,447 185 — — 801 196 — 2,629 Classified 94 1,658 2,354 2,955 2,214 6,826 228 16,329 Total residential real estate loans $ 55,174 $ 356,202 $ 120,760 $ 117,676 $ 104,884 $ 96,909 $ 53,148 $ 904,753 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Current period gross recoveries — — — — — 9 — 9 Current period net charge-offs (recoveries) $ — $ — $ — $ — $ — $ (9) $ — $ (9) Term Loans Amortized Cost Basis by Origination Year (Dollars in thousands) 2021 2020 2019 2018 2017 Prior Revolving Loans Amortized Cost Basis Total Commercial and industrial: Pass $ 254,777 $ 700,996 $ 137,792 $ 103,342 $ 22,396 $ 33,753 $ 471,812 $ 1,724,868 Special mention 217 4,631 2,275 25,902 408 14,458 4,125 52,016 Classified 4,474 1,228 11,786 5,753 4,942 10,198 19,233 57,614 Total commercial and industrial loans $ 259,468 $ 706,855 $ 151,853 $ 134,997 $ 27,746 $ 58,409 $ 495,170 $ 1,834,498 Current period gross charge-offs $ — $ 4 $ 54 $ — $ 362 $ 1,282 $ 1,253 $ 2,955 Current period gross recoveries — — 13 — 11 76 8 108 Current period net charge-offs (recoveries) $ — $ 4 $ 41 $ — $ 351 $ 1,206 $ 1,245 $ 2,847 Mortgage Warehouse Lines of Credit: Pass $ — $ — $ — $ — $ — $ — $ 1,090,347 $ 1,090,347 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Current period gross recoveries — — — — — — — — Current period net charge-offs (recoveries) $ — $ — $ — $ — $ — $ — $ — $ — Consumer: Pass $ 1,858 $ 5,477 $ 2,656 $ 1,276 $ 154 $ 148 $ 5,652 $ 17,221 Classified — 28 9 1 — 5 13 56 Total consumer loans $ 1,858 $ 5,505 $ 2,665 $ 1,277 $ 154 $ 153 $ 5,665 $ 17,277 Current period gross charge-offs $ — $ — $ 22 $ 2 $ — $ 6 $ 14 $ 44 Current period gross recoveries — — — — — 13 — 13 Current period net charge-offs (recoveries) $ — $ — $ 22 $ 2 $ — $ (7) $ 14 $ 31 The following table reflects recorded investments in loans by credit quality indicator and origination year at December 31, 2020, excluding loans held for sale and loans accounted for at fair value. The Company had an immaterial amount of revolving loans converted to term loans at December 31, 2020. Term Loans Amortized Cost Basis by Origination Year (Dollars in thousands) 2020 2019 2018 2017 2016 Prior Revolving Loans Amortized Cost Basis Total Commercial real estate: (1) Pass $ 393,317 $ 290,394 $ 312,051 $ 154,445 $ 46,132 $ 106,994 $ 18,419 $ 1,321,752 Special mention 824 113 2,410 20,691 — 1,656 2,145 27,839 Classified 2,806 1,678 6,704 6,586 1,476 1,093 994 21,337 Total commercial real estate loans $ 396,947 $ 292,185 $ 321,165 $ 181,722 $ 47,608 $ 109,743 $ 21,558 $ 1,370,928 Current period gross charge-offs $ — $ — $ — $ 3,622 $ 199 $ 1,103 $ — $ 4,924 Current period gross recoveries — — — — — 19 — 19 Current period net charge-offs $ — $ — $ — $ 3,622 $ 199 $ 1,084 $ — $ 4,905 (1) Excludes $17.0 million of commercial real estate loans at fair value, which are not included in the loss estimation methodology due to the fair value option election. Term Loans Amortized Cost Basis by Origination Year (Dollars in thousands) 2020 2019 2018 2017 2016 Prior Revolving Loans Amortized Cost Basis Total Construction/land/land development: Pass $ 189,311 $ 150,281 $ 138,000 $ 12,907 $ 1,812 $ 1,157 $ 18,892 $ 512,360 Special mention 323 10,421 135 1,003 — — — 11,882 Classified — 1,811 726 1,507 143 168 3,263 7,618 Total construction/land/land development loans $ 189,634 $ 162,513 $ 138,861 $ 15,417 $ 1,955 $ 1,325 $ 22,155 $ 531,860 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Current period gross recoveries — — — — — 1 — 1 Current period net charge-offs (recoveries) $ — $ — $ — $ — $ — $ (1) $ — $ (1) Residential real estate: Pass $ 367,652 $ 143,368 $ 103,450 $ 102,272 $ 41,522 $ 50,094 $ 53,854 $ 862,212 Special mention 188 — 29 1,875 9,287 803 — 12,182 Classified 1,857 2,403 2,982 511 1,344 1,533 96 10,726 Total residential real estate loans $ 369,697 $ 145,771 $ 106,461 $ 104,658 $ 52,153 $ 52,430 $ 53,950 $ 885,120 Current period gross charge-offs $ 94 $ 271 $ — $ 283 $ — $ 44 $ — $ 692 Current period gross recoveries — — — — — 202 — 202 Current period net charge-offs (recoveries) $ 94 $ 271 $ — $ 283 $ — $ (158) $ — $ 490 Commercial and industrial: Pass $ 851,780 $ 153,722 $ 110,092 $ 29,413 $ 9,927 $ 26,964 $ 511,220 $ 1,693,118 Special mention 4,860 2,059 26,438 423 — 14,843 8,077 56,700 Classified 5,436 12,250 5,859 5,450 5,950 6,707 26,392 68,044 Total commercial and industrial loans $ 862,076 $ 168,031 $ 142,389 $ 35,286 $ 15,877 $ 48,514 $ 545,689 $ 1,817,862 Current period gross charge-offs $ 189 $ 204 $ 87 $ 121 $ 3,228 $ 469 $ 2,404 $ 6,702 Current period gross recoveries — 42 20 81 185 112 582 1,022 Current period net charge-offs $ 189 $ 162 $ 67 $ 40 $ 3,043 $ 357 $ 1,822 $ 5,680 Mortgage Warehouse Lines of Credit: Pass $ — $ — $ — $ — $ — $ — $ 1,084,001 $ 1,084,001 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Current period gross recoveries — — — — — — — — Current period net charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Consumer: Pass $ 6,702 $ 3,318 $ 1,578 $ 203 $ 116 $ 83 $ 5,935 $ 17,935 Classified 28 8 — — 6 1 13 56 Total consumer loans $ 6,730 $ 3,326 $ 1,578 $ 203 $ 122 $ 84 $ 5,948 $ 17,991 Current period gross charge-offs $ — $ 39 $ 23 $ 8 $ — $ 4 $ 2 $ 76 Current period gross recoveries — — 1 7 5 7 4 24 Current period net charge-offs (recoveries) $ — $ 39 $ 22 $ 1 $ (5) $ (3) $ (2) $ 52
Loan Portfolio Aging Analysis	The following tables present the Company's loan portfolio aging analysis at the dates indicated: March 31, 2021 (Dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due Loans Past Due 90 Days or More Total Past Due Current Loans Total Loans Receivable Accruing Loans 90 or More Days Past Due Loans secured by real estate: Commercial real estate (1) $ 1,055 $ — $ 571 $ 1,626 $ 1,453,023 $ 1,454,649 $ — Construction/land/land development 257 253 1,832 2,342 545,894 548,236 — Residential real estate 2,287 4,361 3,116 9,764 894,989 904,753 — Total real estate 3,599 4,614 5,519 13,732 2,893,906 2,907,638 — Commercial and industrial 791 165 11,825 12,781 1,821,717 1,834,498 — Mortgage warehouse lines of credit — — — — 1,090,347 1,090,347 — Consumer 58 1 2 61 17,216 17,277 — Total LHFI $ 4,448 $ 4,780 $ 17,346 $ 26,574 $ 5,823,186 $ 5,849,760 $ — ____________________________ (1) Includes $13.6 million of commercial real estate loans at fair value December 31, 2020 (Dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due Loans Past Due 90 Days or More Total Past Due Current Loans Total Loans Receivable Accruing Loans 90 or More Days Past Due Loans secured by real estate: Commercial real estate (1) $ 1,072 $ — $ 3,172 $ 4,244 $ 1,383,695 $ 1,387,939 $ — Construction/land/land development 369 1 2,328 2,698 529,162 531,860 — Residential real estate 3,774 134 364 4,272 880,848 885,120 — Total real estate 5,215 135 5,864 11,214 2,793,705 2,804,919 — Commercial and industrial 703 1,097 12,625 14,425 1,803,437 1,817,862 — Mortgage warehouse lines of credit — — — — 1,084,001 1,084,001 — Consumer 113 9 2 124 17,867 17,991 — Total LHFI $ 6,031 $ 1,241 $ 18,491 $ 25,763 $ 5,699,010 $ 5,724,773 $ — ____________________________ (1) Includes $17.0 million of commercial real estate loans at fair value
Allowance for Loan Losses by Portfolio Segment	The following tables detail activity in the allowance for loan credit losses by portfolio segment. Accrued interest of $20.2 million and $12.6 million was not included in the book value for the purposes of calculating the allowance at March 31, 2021 and March 31, 2020, respectively. Allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories. Three Months Ended March 31, 2021 (Dollars in thousands) Beginning Balance Charge-offs Recoveries Provision (Benefit) (1) Ending Balance Loans secured by real estate: Commercial real estate $ 15,430 $ 28 $ 3 $ 2,992 $ 18,397 Construction/land/land development 8,191 — — (802) 7,389 Residential real estate 9,418 — 9 (1,133) 8,294 Commercial and industrial 51,857 2,955 108 332 49,342 Mortgage warehouse lines of credit 856 — — 67 923 Consumer 918 44 13 (96) 791 Total $ 86,670 $ 3,027 $ 133 $ 1,360 $ 85,136 ____________________________ (1) The $1.4 million provision for credit losses on the consolidated statements of income includes a $1.4 million net loan loss provision, and a $52,000 provision for off-balance sheet commitments for the three months ended March 31, 2021. Three Months Ended March 31, 2020 (Dollars in thousands) Beginning Balance Impact of Adopting ASC 326 Charge-offs Recoveries Provision (1) Ending Balance Loans secured by real estate: Commercial real estate $ 10,013 $ (5,052) $ 172 $ 2 $ 4,463 $ 9,254 Construction/land/land development 3,711 1,141 — — 202 5,054 Residential real estate 6,332 (2,526) 49 149 589 4,495 Commercial and industrial 16,960 7,296 1,180 169 12,578 35,823 Mortgage warehouse lines of credit 262 29 — — 488 779 Consumer 242 360 24 4 76 658 Total $ 37,520 $ 1,248 $ 1,425 $ 324 $ 18,396 $ 56,063 ____________________________ (1) The $18.5 million provision for credit losses on the consolidated statements of income includes a $18.4 million net loan loss provision and a $135,000 provision for off-balance sheet commitments for the three months ended March 31, 2020. The following tables show the recorded investment in loans by loss estimation methodology at March 31, 2021, and December 31, 2020. March 31, 2021 Collectively Evaluated Individually Evaluated (Dollars in thousands) Probability of Default Fair Value of Collateral Discounted Cash Flow Total Loans secured by real estate: Commercial real estate (1) $ 1,438,054 $ 571 $ 2,446 $ 1,441,071 Construction/land/land development 545,796 2,112 328 548,236 Residential real estate 894,416 8,482 1,855 904,753 Commercial and industrial 1,814,453 9,388 10,657 1,834,498 Mortgage warehouse lines of credit 1,090,347 — — 1,090,347 Consumer 17,275 2 — 17,277 Total $ 5,800,341 $ 20,555 $ 15,286 $ 5,836,182 ____________________________ (1) Excludes $13.6 million of commercial real estate loans at fair value, which are not included in the loss estimation methodology due to the fair value option election. December 31, 2020 Collectively Evaluated Individually Evaluated (Dollars in thousands) Probability of Default Fair Value of Collateral Discounted Cash Flow Total Loans secured by real estate: Commercial real estate (1) $ 1,365,284 $ 3,173 $ 2,471 $ 1,370,928 Construction/land/land development 528,894 2,621 345 531,860 Residential real estate 879,015 2,009 4,096 885,120 Commercial and industrial 1,804,049 3,152 10,661 1,817,862 Mortgage warehouse lines of credit 1,084,001 — — 1,084,001 Consumer 17,991 — — 17,991 Total $ 5,679,234 $ 10,955 $ 17,573 $ 5,707,762 ____________________________ (1) Excludes $17.0 million of commercial real estate loans at fair value, which are not included in the loss estimation methodology due to the fair value option election. The following tables show the allowance for loan credit losses by loss estimation methodology at March 31, 2021, and December 31, 2020. March 31, 2021 Collectively Evaluated Individually Evaluated (Dollars in thousands) Probability of Default Fair Value of Collateral Discounted Cash Flow Total Loans secured by real estate: Commercial real estate $ 18,388 $ — $ 9 $ 18,397 Construction/land/land development 7,258 131 — 7,389 Residential real estate 7,992 — 302 8,294 Commercial and industrial 41,488 3,201 4,653 49,342 Mortgage warehouse lines of credit 923 — — 923 Consumer 789 2 — 791 Total $ 76,838 $ 3,334 $ 4,964 $ 85,136 December 31, 2020 Collectively Evaluated Individually Evaluated (Dollars in thousands) Probability of Default Fair Value of Collateral Discounted Cash Flow Total Loans secured by real estate: Commercial real estate $ 14,896 $ 525 $ 9 $ 15,430 Construction/land/land development 8,062 128 1 8,191 Residential real estate 8,983 — 435 9,418 Commercial and industrial 44,714 1,707 5,436 51,857 Mortgage warehouse lines of credit 856 — — 856 Consumer 918 — — 918 Total $ 78,429 $ 2,360 $ 5,881 $ 86,670
Non-performing (Nonaccrual) Loans Held for Investment	Nonaccrual LHFI were as follows: Nonaccrual With No Nonaccrual (Dollars in thousands) Loans secured by real estate: March 31, 2021 December 31, 2020 March 31, 2021 December 31, 2020 Commercial real estate $ 1,012 $ 1,053 $ 1,085 $ 3,704 Construction/land/land development 955 1,319 2,431 2,962 Residential real estate 8,901 2,436 10,692 6,530 Total real estate 10,868 4,808 14,208 13,196 Commercial and industrial 76 82 19,094 12,897 Consumer — — 56 56 Total nonaccrual loans $ 10,944 $ 4,890 $ 33,358 $ 26,149
Loans Classified as Troubled Debt Restructurings (TDRs)	Loans classified as TDRs, excluding the impact of forbearances granted due to COVID-19, were as follows: (Dollars in thousands) March 31, 2021 December 31, 2020 TDRs Nonaccrual TDRs $ 5,515 $ 5,671 Performing TDRs 3,237 3,314 Total $ 8,752 $ 8,985 There were no loans classified as TDR's during the three months ended March 31, 2021. The tables below summarize loans classified as TDR's by loan and concession type during the three months ended March 31, 2020. Three Months Ended March 31, 2020 (Dollars in thousands) Number of Loans Restructured Pre-Modification Recorded Balance Term Concessions Interest Rate Concessions Combination of Term and Rate Concessions Total Modifications Commercial and industrial 2 $ 128 $ 127 $ — $ — $ 127 Total 2 $ 128 $ 127 $ — $ — $ 127

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value of Assets and Liabilities Recorded on a Recurring Basis	The following tables summarize financial assets and financial liabilities recorded at fair value on a recurring basis at March 31, 2021, and December 31, 2020, segregated by the level of valuation inputs within the fair value hierarchy utilized to measure fair value. There were no changes in the valuation techniques during 2021 or 2020. March 31, 2021 (Dollars in thousands) Level 1 Level 2 Level 3 Total State and municipal securities $ — $ 367,698 $ 41,475 $ 409,173 Corporate bonds — 69,963 — 69,963 U.S. government agency securities — 5,637 — 5,637 Commercial mortgage-backed securities — 8,963 — 8,963 Residential mortgage-backed securities — 205,060 — 205,060 Residential collateralized mortgage obligations — 193,806 — 193,806 Asset-backed securities — 87,530 — 87,530 Securities available for sale — 938,657 41,475 980,132 Securities carried at fair value through income — — 11,077 11,077 Loans held for sale — 82,706 — 82,706 Loans at fair value — — 13,578 13,578 Mortgage servicing rights — — 17,552 17,552 Other assets - derivatives — 17,677 — 17,677 Total recurring fair value measurements - assets $ — $ 1,039,040 $ 83,682 $ 1,122,722 Other liabilities - derivatives $ — $ (15,432) $ — $ (15,432) Total recurring fair value measurements - liabilities $ — $ (15,432) $ — $ (15,432) December 31, 2020 (Dollars in thousands) Level 1 Level 2 Level 3 Total State and municipal securities $ — $ 398,120 $ 44,065 $ 442,185 Corporate bonds — 65,938 — 65,938 U.S. government agency securities — 849 — 849 Commercial mortgage-backed securities — 11,080 — 11,080 Residential mortgage-backed securities — 214,951 — 214,951 Residential collateralized mortgage obligations — 195,343 — 195,343 Asset-backed securities — 74,328 — 74,328 Securities available for sale — 960,609 44,065 1,004,674 Securities carried at fair value through income — — 11,554 11,554 Loans held for sale — 136,026 — 136,026 Loans at fair value — — 17,011 17,011 Mortgage servicing rights — — 13,660 13,660 Other assets - derivatives — 23,694 — 23,694 Total recurring fair value measurements - assets $ — $ 1,120,329 $ 86,290 $ 1,206,619 Other liabilities - derivatives $ — $ (23,020) $ — $ (23,020) Total recurring fair value measurements - liabilities $ — $ (23,020) $ — $ (23,020)
Changes in Level 3 Assets and Liabilities Measured at Fair Value on a Recurring Basis	The changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the three months ended March 31, 2021 and 2020, are summarized as follows: (Dollars in thousands) Loans at Fair Value MSRs Securities Available for Sale Securities at Fair Value Through Income Balance at January 1, 2021 $ 17,011 $ 13,660 $ 44,065 $ 11,554 Gain (loss) recognized in earnings: Mortgage banking revenue (1) — 1,949 — — Other noninterest income (59) — — (477) Loss recognized in AOCI — — (489) — Purchases, issuances, sales and settlements: Originations — 1,943 — — Settlements (3,374) — (2,101) — Balance at March 31, 2021 $ 13,578 $ 17,552 $ 41,475 $ 11,077 Balance at January 1, 2020 $ 17,670 $ 20,697 $ 38,173 $ 11,513 Gain (loss) recognized in earnings: Mortgage banking revenue (1) — (5,228) — — Other noninterest income 166 — — 729 Gain recognized in AOCI — — 160 — Purchases, issuances, sales and settlements: Originations — 653 — — Sales — — (1,908) — Settlements (247) — — — Balance at March 31, 2020 $ 17,589 $ 16,122 $ 36,425 $ 12,242 ____________________________ (1) Total mortgage banking revenue includes changes in fair value due to market changes and run-off.
Significant Assumptions Used to Value Mortgage Servicing Rights	The significant assumptions used to value MSRs were as follows: March 31, 2021 December 31, 2020 Range Weighted Average (1) Range Weighted Average (1) Prepayment speeds 7.78% - 35.56% 14.47 % 11.82% - 37.95% 22.08 % Discount rates 9.00 - 10.50 9.50 7.83 - 9.09 8.27 __________________________ (1) The weighted average was calculated with reference to the principle balance of the underlying mortgages.
Difference Between Fair Value and the Unpaid Principal Balance for Financial Instruments for which the Fair Value Option has been Elected and Classification in Income Statement	The following tables summarize the difference between the fair value and the unpaid principal balance for financial instruments for which the fair value option has been elected: March 31, 2021 (Dollars in thousands) Aggregate Fair Value Aggregate Unpaid Principal Balance Difference Loans held for sale (1) $ 82,706 $ 80,761 $ 1,945 Commercial real estate LHFI (2) 13,578 13,386 192 Securities carried at fair value through income 11,077 10,618 459 Total $ 107,361 $ 104,765 $ 2,596 ____________________________ (1) $963,000 of loans held for sale were designated as nonaccrual or 90 days or more past due at March 31, 2021. Of this balance, $826,000 was guaranteed by U.S. Government agencies. (2) There were no commercial real estate loans for which the fair value had been elected that were designated as nonaccrual or 90 days or more past due at March 31, 2021. December 31, 2020 (Dollars in thousands) Aggregate Fair Value Aggregate Unpaid Principal Balance Difference Loans held for sale (1) $ 136,026 $ 129,955 $ 6,071 Commercial real estate LHFI (2) 17,011 16,760 251 Securities carried at fair value through income 11,554 10,618 936 Total $ 164,591 $ 157,333 $ 7,258 ____________________________ (1) $681,000 of loans held for sale were designated as nonaccrual or 90 days or more past due at December 31, 2020. Of this balance, $473,000 was guaranteed by U.S. Government agencies. (2) There were no commercial real estate loans for which the fair value had been elected that were designated as nonaccrual or 90 days or more past due at December 31, 2020. Changes in the fair value of assets for which the Company elected the fair value option are classified in the consolidated statement of income line items reflected in the following table: (Dollars in thousands) Three Months Ended March 31, Changes in fair value included in noninterest income: 2021 2020 Mortgage banking revenue $ (4,125) $ 1,046 Other income: Loans at fair value held for investment (59) 166 Securities carried at fair value through income (477) 729 Total impact on other income (536) 895 Total fair value option impact on noninterest income (1) $ (4,661) $ 1,941 ____________________________ (1) The fair value option impact on noninterest income is offset by the derivative gain/loss recognized in noninterest income. Please see Note 6 - Mortgage Banking for more detail.
Carrying Value and Estimated Fair Value of Financial Instruments Not Measured at Fair Value	The carrying value and estimated fair values of financial instruments not recorded at fair value are as follows: (Dollars in thousands) Financial assets: March 31, 2021 December 31, 2020 Level 1 inputs: Carrying Estimated Carrying Estimated Cash and cash equivalents $ 264,901 $ 264,901 $ 377,214 $ 377,214 Level 2 inputs: Non-marketable equity securities held in other financial institutions 47,274 47,274 62,586 62,586 Accrued interest and loan fees receivable 27,450 27,450 27,146 27,146 Level 3 inputs: Securities held to maturity 37,983 40,800 38,128 41,205 LHFI, net (1) 5,751,046 5,729,954 5,621,092 5,802,744 Financial liabilities: Level 2 inputs: Deposits 6,346,194 6,349,699 5,751,315 5,756,312 FHLB advances and other borrowings 325,751 312,306 984,608 991,943 Subordinated debentures 157,239 156,451 157,181 156,395 Accrued interest payable 3,445 3,445 3,556 3,556 ____________________________ (1) Does not include loans for which the fair value option had been elected at March 31, 2021, or December 31, 2020, as these loans are carried at fair value on a recurring basis.

Mortgage Banking (Tables)

Mortgage Banking (Tables)	3 Months Ended
	Mar. 31, 2021
Mortgage Banking [Abstract]
Mortgage Banking Operations	The following table presents the Company's revenue from mortgage banking operations: (Dollars in thousands) Three Months Ended March 31, Mortgage banking revenue 2021 2020 Origination $ 376 $ 275 Gain on sale of loans held for sale 6,940 1,873 Servicing 1,501 1,601 Total gross mortgage revenue 8,817 3,749 Mortgage HFS and pipeline fair value adjustment (3,158) 1,266 MSR valuation adjustment, net of amortization 1,949 (5,228) MSR hedge impact (3,031) 2,982 Mortgage banking revenue $ 4,577 $ 2,769
Schedule of Activity in Mortgages Servicing Rights (MSRs)	Activity in MSRs was as follows: Three Months Ended March 31, (Dollars in thousands) 2021 2020 Balance at beginning of period $ 13,660 $ 20,697 Addition of servicing rights 1,943 653 Valuation adjustment, net of amortization 1,949 (5,228) Balance at end of period $ 17,552 $ 16,122

Borrowings (Tables)

Borrowings (Tables)	3 Months Ended
	Mar. 31, 2021
Debt Disclosure [Abstract]
Summary of Borrowed Funds	Borrowed funds are summarized as follows: (Dollars in thousands) March 31, 2021 December 31, 2020 Overnight repurchase agreements with depositors $ 6,321 $ 8,408 Short-term FHLB advances — 650,000 GNMA repurchase liability 62,244 55,485 Long-term FHLB advances 257,186 270,715 Total FHLB advances and other borrowings $ 325,751 $ 984,608 Subordinated debentures, net $ 157,239 $ 157,181 Additional details of certain FHLB advances are as follows: (Dollars in thousands) Amount Interest Rate Maturity Date At March 31, 2021: Long-term FHLB advance, callable quarterly, fixed rate $ 250,000 1.65 % 8/23/2033 At December 31, 2020: Short-term FHLB advance, fixed rate 650,000 0.10 1/4/2021 Long-term FHLB advance, callable quarterly, fixed rate 250,000 1.65 8/23/2033

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Fair Values of Derivative Instruments on the Balance Sheet	The following tables disclose the fair value of derivative instruments in the Company's balance sheets at March 31, 2021, and December 31, 2020, as well as the effect of these derivative instruments on the Company's consolidated statements of income for the three months ended March 31, 2021 and 2020: (Dollars in thousands) Notional Amounts (1) Fair Values Derivatives designated as cash flow hedging instruments: March 31, 2021 December 31, 2020 March 31, 2021 December 31, 2020 Interest rate swaps included in other (liabilities) $ 21,000 $ 21,000 $ (227) $ (706) Derivatives not designated as hedging instruments: Interest rate swaps included in other assets $ 334,916 $ 326,542 $ 13,881 $ 20,207 Interest rate swaps included in other liabilities 355,306 347,096 (14,735) (21,321) Risk participation derivatives included in accrued expenses and other liabilities on the consolidated balance sheets 63,374 63,374 (13) (18) Forward commitments to purchase mortgage-backed securities included in other (liabilities) assets 78,000 107,000 (457) (317) Forward commitments to sell residential mortgage loans included in other liabilities 115,000 107,200 1,704 (658) Interest rate-lock commitments on residential mortgage loans included in other assets 80,273 79,554 2,092 3,487 $ 1,026,869 $ 1,030,766 $ 2,472 $ 1,380 ____________________________ (1) Notional or contractual amounts, which represent the extent of involvement in the derivatives market, are used to determine the contractual cash flows required in accordance with the terms of the agreement. These amounts are typically not exchanged, significantly exceed amounts subject to credit or market risk and are not reflected in the consolidated balance sheets.
Weighted-average Rates Paid and Received for Interest Rate Swaps	The weighted-average rates paid and received for interest rate swaps at March 31, 2021, were as follows: Weighted-Average Interest Rate Interest rate swaps: Paid Received Cash flow hedges 4.81 % 2.93 % Non-hedging interest rate swaps - financial institution counterparties 4.49 2.70 Non-hedging interest rate swaps - customer counterparties 2.75 4.51
Gains and Losses Recognized on Derivative Instruments Not Designated as Hedging Instruments	Gains and losses recognized on derivative instruments not designated as hedging instruments are as follows: (Dollars in thousands) Three Months Ended March 31, Derivatives not designated as hedging instruments: 2021 2020 Amount of gain (loss) recognized in mortgage banking revenue (1) $ (1,206) $ 2,513 Amount of (loss) gain recognized in other non-interest income 307 (685) ____________________________ (1) Gains and losses on these instruments are largely offset by market fluctuations in mortgage servicing rights. See Note 6 - Mortgage Banking for more information on components of mortgage banking revenue.

Stock and Incentive Compensat_2

Stock and Incentive Compensation Plans (Tables)	3 Months Ended
	Mar. 31, 2021
Share-based Payment Arrangement [Abstract]
Share-Based Compensation Cost Charged to Income	Share-based compensation cost charged to income for the three months ended March 31, 2021, and 2020, is presented below. There was no stock option expense for any of the periods shown. Three Months Ended March 31, (Dollars in thousands) 2021 2020 Restricted stock $ 614 $ 537 Related tax benefits recognized in net income 129 113
Time-Vested Award Activity	The following table summarizes the Company's time-vested award activity: Three Months Ended March 31, 2021 2020 Shares Weighted Average Grant-Date Fair Value Shares Weighted Average Grant-Date Fair Value Nonvested shares, January 1, 103,359 $ 31.51 149,449 $ 35.15 Granted 6,286 33.82 — — Vested (1,782) 27.20 (2,073) 25.81 Forfeited (946) 24.69 (4,129) 37.14 Nonvested shares, March 31, 106,917 31.78 143,247 35.23
Stock Option Activity	The table below summarizes the status of the Company's stock options and changes during the three months ended March 31, 2021 and 2020. (Dollars in thousands, except per share amounts) Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term Aggregate Intrinsic Value Three Months Ended March 31, 2021 Outstanding at January 1, 2021 224,000 $ 10.86 4.92 $ 3,789 Exercised (14,800) 9.89 — — Outstanding and exercisable at March 31, 2021 209,200 10.93 5.05 6,587 Three Months Ended March 31, 2020 Outstanding at January 1, 2020 254,000 $ 10.55 5.81 $ 6,932 Exercised (30,000) 8.25 — — Outstanding and exercisable at March 31, 2020 224,000 10.86 5.67 2,104

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Tables)	3 Months Ended
	Mar. 31, 2021
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income	Accumulated other comprehensive income ("AOCI") includes the after-tax change in unrealized gains and losses on AFS securities and cash flow hedging activities. (Dollars in thousands) Unrealized Gain (Loss) on AFS Securities Unrealized (Loss) Gain on Cash Flow Hedges Accumulated Other Comprehensive Income Balance at January 1, 2021 $ 26,206 $ (557) $ 25,649 Net change (13,843) 379 (13,464) Balance at March 31, 2021 $ 12,363 $ (178) $ 12,185 Balance at January 1, 2020 $ 6,412 $ (79) $ 6,333 Net change 10,044 (555) 9,489 Balance at March 31, 2020 $ 16,456 $ (634) $ 15,822

Capital and Regulatory Matters

Capital and Regulatory Matters (Tables)	3 Months Ended
	Mar. 31, 2021
Banking Regulation [Abstract]
Actual Capital Amounts and Ratios	The actual capital amounts and ratios of the Company and Bank at March 31, 2021, and December 31, 2020, are presented in the following table: (Dollars in thousands) March 31, 2021 Actual Minimum Capital Required - Basel III To be Well Capitalized Under Prompt Corrective Action Provisions Common Equity Tier 1 Capital to Risk-Weighted Assets Amount Ratio Amount Ratio Amount Ratio Origin Bancorp, Inc. $ 626,931 10.17 % $ 431,516 7.00 % N/A N/A Origin Bank 660,585 10.74 430,549 7.00 $ 399,795 6.50 % Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 636,315 10.32 524,097 8.50 N/A N/A Origin Bank 660,585 10.74 522,809 8.50 492,056 8.00 Total Capital to Risk-Weighted Assets Origin Bancorp, Inc. 858,644 13.92 647,684 10.50 N/A N/A Origin Bank 804,330 13.08 645,678 10.50 614,931 10.00 Leverage Ratio Origin Bancorp, Inc. 636,315 8.67 293,571 4.00 N/A N/A Origin Bank 660,585 9.02 292,942 4.00 366,178 5.00 December 31, 2020 Common Equity Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 604,306 9.95 425,012 7.00 N/A N/A Origin Bank 637,863 10.53 424,010 7.00 393,724 6.50 Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 613,682 10.11 516,107 8.50 N/A N/A Origin Bank 637,863 10.53 514,870 8.50 484,583 8.00 Total Capital to Risk-Weighted Assets Origin Bancorp, Inc. 837,058 13.79 637,539 10.50 N/A N/A Origin Bank 782,503 12.92 636,019 10.50 605,732 10.00 Leverage Ratio Origin Bancorp, Inc. 613,682 8.62 284,771 4.00 N/A N/A Origin Bank 637,863 8.99 283,842 4.00 354,802 5.00

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Off-Balance Sheet Financial Instruments	These off-balance sheet financial instruments are summarized below: (Dollars in thousands) March 31, 2021 December 31, 2020 Commitments to extend credit $ 1,390,528 $ 1,341,501 Standby letters of credit 48,967 42,911

Significant Accounting Polici_3

Significant Accounting Policies (Details)	3 Months Ended
	Mar. 31, 2021segmentcenter
Accounting Policies [Abstract]
Number of banking centers | center	44
Number of segments | segment	1

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Numerator:
Net income (basic and diluted)	$ 25,513	$ 753
Denominator:
Weighted average common shares outstanding (in shares)	23,393,356	23,353,601
Dilutive effect of stock-based awards (in shares)	197,074	176,611
Weighted average diluted common shares outstanding (in shares)	23,590,430	23,530,212
Basic earnings per common share (in dollars per share)	$ 1.09	$ 0.03
Diluted earnings per common share (in dollars per share)	$ 1.08	$ 0.03

Securities - Amortized Cost and

Securities - Amortized Cost and Estimated Fair Value of Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Available for sale:
Available for sale, amortized cost	$ 964,575	$ 971,595
Available for sale, gross unrealized gains	24,477	33,972
Available for sale, gross unrealized losses	(8,920)	(893)
Available for sale, fair value	980,132	1,004,674
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	980,132	1,004,674
Held to maturity:
Held to maturity, amortized cost	38,049
Held to maturity, allowance for credit losses	40,800	41,205
Held to maturity, allowance for credit losses	(66)	(66)	$ (96)	$ 0
Held to maturity, net carrying amount	37,983	38,128
Securities carried at fair value through income:
Securities carried at fair value through income, fair value	11,077	11,554
State and municipal securities
Available for sale:
Available for sale, amortized cost	401,450	420,559
Available for sale, gross unrealized gains	13,364	21,884
Available for sale, gross unrealized losses	(5,641)	(258)
Available for sale, fair value	409,173	442,185
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	409,173	442,185
Held to maturity:
Held to maturity, amortized cost	38,049	38,194
Held to maturity, gross unrealized gains	2,751	3,011
Held to maturity, gross unrealized losses	0	0
Held to maturity, allowance for credit losses	(66)	(66)
Held to maturity, net carrying amount	37,983	38,128
Securities carried at fair value through income:
Securities carried at fair value through income, amortized cost	10,618	10,618
Securities carried at fair value through income, fair value	11,077	11,554
Securities carried at fair value through income, net carrying amount	11,077	11,554
Corporate bonds
Available for sale:
Available for sale, amortized cost	68,293	64,313
Available for sale, gross unrealized gains	2,056	1,762
Available for sale, gross unrealized losses	(386)	(137)
Available for sale, fair value	69,963	65,938
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	69,963	65,938
U.S. government and agency securities
Available for sale:
Available for sale, amortized cost	5,811	851
Available for sale, gross unrealized gains	3	3
Available for sale, gross unrealized losses	(177)	(5)
Available for sale, fair value	5,637	849
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	5,637	849
Commercial mortgage-backed securities
Available for sale:
Available for sale, amortized cost	9,088	10,814
Available for sale, gross unrealized gains	232	266
Available for sale, gross unrealized losses	(357)	0
Available for sale, fair value	8,963	11,080
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	8,963	11,080
Residential mortgage-backed securities
Available for sale:
Available for sale, amortized cost	200,265	207,742
Available for sale, gross unrealized gains	5,738	7,441
Available for sale, gross unrealized losses	(943)	(232)
Available for sale, fair value	205,060	214,951
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	205,060	214,951
Residential collateralized mortgage obligations
Available for sale:
Available for sale, amortized cost	193,730	193,865
Available for sale, gross unrealized gains	1,491	1,739
Available for sale, gross unrealized losses	(1,415)	(261)
Available for sale, fair value	193,806	195,343
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	193,806	195,343
Asset-backed securities
Available for sale:
Available for sale, amortized cost	85,938	73,451
Available for sale, gross unrealized gains	1,593	877
Available for sale, gross unrealized losses	(1)	0
Available for sale, fair value	87,530	74,328
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	$ 87,530	$ 74,328

Securities - Unrealized Losses

Securities - Unrealized Losses (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Fair Value
Less than 12 Months	$ 335,763	$ 119,581
12 Months or More	2,043	568
Total	337,806	120,149
Unrealized Loss
Less than 12 Months	(8,876)	(888)
12 Months or More	(44)	(5)
Total	(8,920)	(893)
State and municipal securities
Fair Value
Less than 12 Months	147,815	21,979
12 Months or More	1,520	0
Total	149,335	21,979
Unrealized Loss
Less than 12 Months	(5,601)	(258)
12 Months or More	(40)	0
Total	(5,641)	(258)
Fair Value
Less than 12 Months	0	0
12 Months or More	0	0
Total	0	0
Unrealized Loss
Less than 12 Months	0	0
12 Months or More	0	0
Total	0	0
Corporate bonds
Fair Value
Less than 12 Months	24,249	30,513
12 Months or More	0	0
Total	24,249	30,513
Unrealized Loss
Less than 12 Months	(386)	(137)
12 Months or More	0	0
Total	(386)	(137)
U.S. government and agency securities
Fair Value
Less than 12 Months	4,851	0
12 Months or More	523	568
Total	5,374	568
Unrealized Loss
Less than 12 Months	(173)	0
12 Months or More	(4)	(5)
Total	(177)	(5)
Commercial mortgage-backed securities
Fair Value
Less than 12 Months	6,475
12 Months or More	0
Total	6,475
Unrealized Loss
Less than 12 Months	(357)
12 Months or More	0
Total	(357)
Residential mortgage-backed securities
Fair Value
Less than 12 Months	54,673	23,178
12 Months or More	0	0
Total	54,673	23,178
Unrealized Loss
Less than 12 Months	(943)	(232)
12 Months or More	0	0
Total	(943)	(232)
Residential collateralized mortgage obligations
Fair Value
Less than 12 Months	90,832	43,911
12 Months or More	0	0
Total	90,832	43,911
Unrealized Loss
Less than 12 Months	(1,415)	(261)
12 Months or More	0	0
Total	(1,415)	$ (261)
Asset-backed securities
Fair Value
Less than 12 Months	6,868
12 Months or More	0
Total	6,868
Unrealized Loss
Less than 12 Months	(1)
12 Months or More	0
Total	$ (1)

Securities - Narrative (Details

Securities - Narrative (Details)	Mar. 31, 2021USD ($)security	Dec. 31, 2020USD ($)	Mar. 31, 2020USD ($)
Investments, Debt and Equity Securities [Abstract]
Number of securities in an unrealized loss positions (in security) | security	134
Held-to-maturity securities, accrued interest	$ 5,600,000		$ 2,700,000
Held-to-maturity securities past due	$ 0	$ 0

Securities -Allowance for Credi

Securities -Allowance for Credit Losses for Held -to - Maturity Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Allowance for credit losses:
Beginning Balance	$ 66	$ 0
Credit loss expense	0	0
Impact of adopting ASC 326	66	96
Ending Balance	$ 66	96
Adjustment
Allowance for credit losses:
Beginning Balance		96
Impact of adopting ASC 326		$ 96

Securities - Proceeds from Sale

Securities - Proceeds from Sales of Securities Available for Sale and Gross Gains (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales	$ 40,493	$ 22,375
Gross realized gains	1,700	103
Gross realized losses	$ (32)	$ (49)

Securities - Contractual Maturi

Securities - Contractual Maturities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Amortized Cost
Due in one year or less	$ 12,857
Due after one year through five years	0
Due after five years through ten years	25,192
Due after ten years	0
Held to maturity, amortized cost	38,049
Fair Value
Due in one year or less	12,862
Due after one year through five years	0
Due after five years through ten years	27,938
Due after ten years	0
Held to maturity, fair value	40,800	$ 41,205
Amortized Cost
Due in one year or less	4,725
Due after one year through five years	52,044
Due after five years through ten years	111,175
Due after ten years	307,610
Available for sale, amortized cost	964,575	971,595
Fair Value
Due in one year or less	4,772
Due after one year through five years	56,192
Due after five years through ten years	113,565
Due after ten years	310,244
Available for sale, fair value	980,132	1,004,674
Commercial mortgage-backed securities
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	0
Amortized Cost
Without single maturity date	9,088
Available for sale, amortized cost	9,088	10,814
Fair Value
Without single maturity date	8,963
Available for sale, fair value	8,963	11,080
Residential mortgage-backed securities
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	0
Amortized Cost
Without single maturity date	200,265
Available for sale, amortized cost	200,265	207,742
Fair Value
Without single maturity date	205,060
Available for sale, fair value	205,060	214,951
Residential collateralized mortgage obligations
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	0
Amortized Cost
Without single maturity date	193,730
Available for sale, amortized cost	193,730	193,865
Fair Value
Without single maturity date	193,806
Available for sale, fair value	193,806	195,343
Asset-backed securities
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	0
Amortized Cost
Without single maturity date	85,938
Available for sale, amortized cost	85,938	73,451
Fair Value
Without single maturity date	87,530
Available for sale, fair value	$ 87,530	$ 74,328

Securities - Securities Pledged

Securities - Securities Pledged as Collateral (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Carrying value of securities pledged to secure public deposits
Schedule of Held-to-maturity Securities [Line Items]
Securities pledged as collateral	$ 232,179	$ 289,537
Carrying value of securities pledged to repurchase agreements
Schedule of Held-to-maturity Securities [Line Items]
Securities pledged as collateral	$ 9,949	$ 10,982

Loans - Schedule of Loans (Deta

Loans - Schedule of Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Loans held for sale	$ 144,950	$ 191,512
Total	5,836,182	5,707,762
Loans accounted for at fair value	13,578	17,011
Total Loans Receivable	5,849,760	5,724,773
Less: Allowance for loan losses	85,136	86,670	$ 56,063	$ 37,520
LHFI, net	5,764,624	5,638,103
Net deferred loan fees	15,900	13,700
Paycheck Protection Program
Loans and Leases Receivable Disclosure [Line Items]
Total	584,100	546,500
Net deferred loan fees		11,500
Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	2,894,060	2,787,908
Total Loans Receivable	2,907,638	2,804,919
Real estate | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	1,441,071	1,370,928
Loans accounted for at fair value	13,600	17,000
Total Loans Receivable	1,454,649	1,387,939
Less: Allowance for loan losses	18,397	15,430	9,254	10,013
Real estate | Construction/land/land development
Loans and Leases Receivable Disclosure [Line Items]
Total	548,236	531,860
Total Loans Receivable	548,236	531,860
Less: Allowance for loan losses	7,389	8,191	5,054	3,711
Real estate | Residential real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	904,753	885,120
Total Loans Receivable	904,753	885,120
Less: Allowance for loan losses	8,294	9,418	4,495	6,332
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Total	1,834,498	1,817,862
Total Loans Receivable	1,834,498	1,817,862
Less: Allowance for loan losses	49,342	51,857	35,823	16,960
Mortgage warehouse lines of credit
Loans and Leases Receivable Disclosure [Line Items]
Total	1,090,347	1,084,001
Total Loans Receivable	1,090,347	1,084,001
Less: Allowance for loan losses	923	856	779	262
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total	17,277	17,991
Total Loans Receivable	17,277	17,991
Less: Allowance for loan losses	$ 791	$ 918	$ 658	$ 242

Loans - Narrative (Details)

Loans - Narrative (Details)	3 Months Ended
	Mar. 31, 2021USD ($)loan	Mar. 31, 2020USD ($)loan	Dec. 31, 2020USD ($)loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment at fair value	$ 13,578,000		$ 17,011,000
Loans held for investment	5,836,182,000		5,707,762,000
Net deferred loan fees	15,900,000		13,700,000
Decline in total collective reserves	1,600,000
Increase (decrease) related to qualitative factors across risk pools	(1,100,000)
Provision expense		$ 11,200,000
Provision expense as a result of COVID-19 due to effects of individually evaluated loans		$ 6,000,000
Nonaccrual mortgage loans held for sale recorded at fair value	$ 963,000		$ 681,000
Number of loans in COVID-19 related forbearance | loan	24		49
Loans in COVID-19 related forbearance	$ 5,300,000		$ 97,700,000
Number of loans that defaulted | loan	0	2
Paycheck Protection Program
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 584,100,000		546,500,000
Net deferred loan fees			11,500,000
Nonperforming Financial Instruments
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross interest income that would have been recorded	341,000	$ 354,000
Interest income	0	0
Outstanding principal balance		2,300,000
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Charge-off as a result of COVID-19		732,000
Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	2,894,060,000		2,787,908,000
Real estate | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment at fair value	13,600,000		17,000,000
Loans held for investment	1,441,071,000		1,370,928,000
Increase in credit allowance related to individually impaired loans		3,000,000
Commercial Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,834,498,000		$ 1,817,862,000
Number of significant loan write-offs | loan	6
Charge-off as a result of COVID-19	$ 2,800,000
Number of loan relationships | loan	4
Provision expense		5,400,000
Provision expense as a result of COVID-19 due to effects of individually evaluated loans		$ 3,000,000

Loans - Loans by Credit Quality

Loans - Loans by Credit Quality Indicator (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 5,836,182		$ 5,707,762
Total Loans Receivable	5,849,760		5,724,773
Charge-offs	3,027	$ 1,425
Total, Current period gross recoveries	133	324
Loans at fair value	13,578		17,011
Real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total	2,894,060		2,787,908
Total Loans Receivable	2,907,638		2,804,919
Real estate | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	136,498
2020	397,652		396,947
2019	292,402		292,185
2018	293,609		321,165
2017	170,451		181,722
2016			47,608
Prior	126,972		109,743
Revolving Loans Amortized Cost Basis	23,487		21,558
Total	1,441,071		1,370,928
Total Loans Receivable	1,454,649		1,387,939
2021, Current period gross charge-offs	0
2020, Current period gross charge-offs	0		0
2019, Current period gross charge-offs	0		0
2018, Current period gross charge-offs	0		0
2017, Current period gross charge-offs	2		3,622
2016, Current period gross charge-offs			199
Prior, Current period gross charge-offs	26		1,103
Revolving Loans Amortized Cost Basis, Current period gross charge-offs	0		0
Charge-offs	28	172	4,924
2021, Current period gross recoveries	0
2020, Current period gross recoveries	0		0
2019, Current period gross recoveries	0		0
2018, Current period gross recoveries	0		0
2017, Current period gross recoveries	0		0
2016, Current period gross recoveries			0
Prior, Current period gross recoveries	3		19
Revolving Loans Amortized Cost Basis, Current period gross recoveries	0		0
Total, Current period gross recoveries	3	2	19
2021, Current period net charge-offs (recoveries)	0
2020, Current period net charge-offs (recoveries)	0		0
2019, Current period net charge-offs (recoveries)	0		0
2018, Current period net charge-offs (recoveries)	0		0
2017, Current period net charge-offs (recoveries)	2		3,622
2016, Current period net charge-offs (recoveries)			199
Prior, Current period net charge-offs (recoveries)	23		1,084
Revolving Loans Amortized Cost Basis, Current period net charge-offs (recoveries)	0		0
Total, Current period net charge-offs (recoveries)	25		4,905
Loans at fair value	13,600		17,000
Real estate | Commercial real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	130,211
2020	394,179		393,317
2019	290,815		290,394
2018	289,673		312,051
2017	148,317		154,445
2016			46,132
Prior	124,443		106,994
Revolving Loans Amortized Cost Basis	21,263		18,419
Total	1,398,901		1,321,752
Real estate | Commercial real estate | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
2021	4,383
2020	0		824
2019	0		113
2018	1,154		2,410
2017	20,707		20,691
2016			0
Prior	0		1,656
Revolving Loans Amortized Cost Basis	2,110		2,145
Total	28,354		27,839
Real estate | Commercial real estate | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
2021	1,904
2020	3,473		2,806
2019	1,587		1,678
2018	2,782		6,704
2017	1,427		6,586
2016			1,476
Prior	2,529		1,093
Revolving Loans Amortized Cost Basis	114		994
Total	13,816		21,337
Real estate | Construction/land/land development
Financing Receivable, Credit Quality Indicator [Line Items]
2021	41,012
2020	193,469		189,634
2019	154,193		162,513
2018	120,786		138,861
2017	15,227		15,417
2016			1,955
Prior	2,796		1,325
Revolving Loans Amortized Cost Basis	20,753		22,155
Total	548,236		531,860
Total Loans Receivable	548,236		531,860
2021, Current period gross charge-offs	0
2020, Current period gross charge-offs	0		0
2019, Current period gross charge-offs	0		0
2018, Current period gross charge-offs	0		0
2017, Current period gross charge-offs	0		0
2016, Current period gross charge-offs			0
Prior, Current period gross charge-offs	0		0
Revolving Loans Amortized Cost Basis, Current period gross charge-offs	0		0
Charge-offs	0	0	0
2021, Current period gross recoveries	0
2020, Current period gross recoveries	0		0
2019, Current period gross recoveries	0		0
2018, Current period gross recoveries	0		0
2017, Current period gross recoveries	0		0
2016, Current period gross recoveries			0
Prior, Current period gross recoveries	0		1
Revolving Loans Amortized Cost Basis, Current period gross recoveries	0		0
Total, Current period gross recoveries	0	0	1
2021, Current period net charge-offs (recoveries)	0
2020, Current period net charge-offs (recoveries)	0		0
2019, Current period net charge-offs (recoveries)	0		0
2018, Current period net charge-offs (recoveries)	0		0
2017, Current period net charge-offs (recoveries)	0		0
2016, Current period net charge-offs (recoveries)			0
Prior, Current period net charge-offs (recoveries)	0		(1)
Revolving Loans Amortized Cost Basis, Current period net charge-offs (recoveries)	0		0
Total, Current period net charge-offs (recoveries)	0		(1)
Real estate | Construction/land/land development | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	40,706
2020	193,152		189,311
2019	142,872		150,281
2018	119,935		138,000
2017	12,716		12,907
2016			1,812
Prior	2,505		1,157
Revolving Loans Amortized Cost Basis	17,490		18,892
Total Loans Receivable	529,376		512,360
Real estate | Construction/land/land development | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	0		323
2019	10,242		10,421
2018	135		135
2017	1,003		1,003
2016			0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Total Loans Receivable	11,380		11,882
Real estate | Construction/land/land development | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
2021	306
2020	317		0
2019	1,079		1,811
2018	716		726
2017	1,508		1,507
2016			143
Prior	291		168
Revolving Loans Amortized Cost Basis	3,263		3,263
Total Loans Receivable	7,480		7,618
Real estate | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	55,174
2020	356,202		369,697
2019	120,760		145,771
2018	117,676		106,461
2017	104,884		104,658
2016			52,153
Prior	96,909		52,430
Revolving Loans Amortized Cost Basis	53,148		53,950
Total	904,753		885,120
Total Loans Receivable	904,753		885,120
2021, Current period gross charge-offs	0
2020, Current period gross charge-offs	0		94
2019, Current period gross charge-offs	0		271
2018, Current period gross charge-offs	0		0
2017, Current period gross charge-offs	0		283
2016, Current period gross charge-offs			0
Prior, Current period gross charge-offs	0		44
Revolving Loans Amortized Cost Basis, Current period gross charge-offs	0		0
Charge-offs	0	49	692
2021, Current period gross recoveries	0
2020, Current period gross recoveries	0		0
2019, Current period gross recoveries	0		0
2018, Current period gross recoveries	0		0
2017, Current period gross recoveries	0		0
2016, Current period gross recoveries			0
Prior, Current period gross recoveries	9		202
Revolving Loans Amortized Cost Basis, Current period gross recoveries	0		0
Total, Current period gross recoveries	9	149	202
2021, Current period net charge-offs (recoveries)	0
2020, Current period net charge-offs (recoveries)	0		94
2019, Current period net charge-offs (recoveries)	0		271
2018, Current period net charge-offs (recoveries)	0		0
2017, Current period net charge-offs (recoveries)	0		283
2016, Current period net charge-offs (recoveries)			0
Prior, Current period net charge-offs (recoveries)	(9)		(158)
Revolving Loans Amortized Cost Basis, Current period net charge-offs (recoveries)	0		0
Total, Current period net charge-offs (recoveries)	(9)		490
Real estate | Residential real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	53,633
2020	354,359		367,652
2019	118,406		143,368
2018	114,721		103,450
2017	101,869		102,272
2016			41,522
Prior	89,887		50,094
Revolving Loans Amortized Cost Basis	52,920		53,854
Total Loans Receivable	885,795		862,212
Real estate | Residential real estate | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
2021	1,447
2020	185		188
2019	0		0
2018	0		29
2017	801		1,875
2016			9,287
Prior	196		803
Revolving Loans Amortized Cost Basis	0		0
Total Loans Receivable	2,629		12,182
Real estate | Residential real estate | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
2021	94
2020	1,658		1,857
2019	2,354		2,403
2018	2,955		2,982
2017	2,214		511
2016			1,344
Prior	6,826		1,533
Revolving Loans Amortized Cost Basis	228		96
Total Loans Receivable	16,329		10,726
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	259,468
2020	706,855		862,076
2019	151,853		168,031
2018	134,997		142,389
2017	27,746		35,286
2016			15,877
Prior	58,409		48,514
Revolving Loans Amortized Cost Basis	495,170		545,689
Total	1,834,498		1,817,862
Total Loans Receivable	1,834,498		1,817,862
2021, Current period gross charge-offs	0
2020, Current period gross charge-offs	4		189
2019, Current period gross charge-offs	54		204
2018, Current period gross charge-offs	0		87
2017, Current period gross charge-offs	362		121
2016, Current period gross charge-offs			3,228
Prior, Current period gross charge-offs	1,282		469
Revolving Loans Amortized Cost Basis, Current period gross charge-offs	1,253		2,404
Charge-offs	2,955	1,180	6,702
2021, Current period gross recoveries	0
2020, Current period gross recoveries	0		0
2019, Current period gross recoveries	13		42
2018, Current period gross recoveries	0		20
2017, Current period gross recoveries	11		81
2016, Current period gross recoveries			185
Prior, Current period gross recoveries	76		112
Revolving Loans Amortized Cost Basis, Current period gross recoveries	8		582
Total, Current period gross recoveries	108	169	1,022
2021, Current period net charge-offs (recoveries)	0
2020, Current period net charge-offs (recoveries)	4		189
2019, Current period net charge-offs (recoveries)	41		162
2018, Current period net charge-offs (recoveries)	0		67
2017, Current period net charge-offs (recoveries)	351		40
2016, Current period net charge-offs (recoveries)			3,043
Prior, Current period net charge-offs (recoveries)	1,206		357
Revolving Loans Amortized Cost Basis, Current period net charge-offs (recoveries)	1,245		1,822
Total, Current period net charge-offs (recoveries)	2,847		5,680
Commercial and industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	254,777
2020	700,996		851,780
2019	137,792		153,722
2018	103,342		110,092
2017	22,396		29,413
2016			9,927
Prior	33,753		26,964
Revolving Loans Amortized Cost Basis	471,812		511,220
Total Loans Receivable	1,724,868		1,693,118
Commercial and industrial | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
2021	217
2020	4,631		4,860
2019	2,275		2,059
2018	25,902		26,438
2017	408		423
2016			0
Prior	14,458		14,843
Revolving Loans Amortized Cost Basis	4,125		8,077
Total Loans Receivable	52,016		56,700
Commercial and industrial | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
2021	4,474
2020	1,228		5,436
2019	11,786		12,250
2018	5,753		5,859
2017	4,942		5,450
2016			5,950
Prior	10,198		6,707
Revolving Loans Amortized Cost Basis	19,233		26,392
Total Loans Receivable	57,614		68,044
Mortgage warehouse lines of credit
Financing Receivable, Credit Quality Indicator [Line Items]
Total	1,090,347		1,084,001
Total Loans Receivable	1,090,347		1,084,001
2021, Current period gross charge-offs	0
2020, Current period gross charge-offs	0		0
2019, Current period gross charge-offs	0		0
2018, Current period gross charge-offs	0		0
2017, Current period gross charge-offs	0		0
2016, Current period gross charge-offs			0
Prior, Current period gross charge-offs	0		0
Revolving Loans Amortized Cost Basis, Current period gross charge-offs	0		0
Charge-offs	0	0	0
2021, Current period gross recoveries	0
2020, Current period gross recoveries	0		0
2019, Current period gross recoveries	0		0
2018, Current period gross recoveries	0		0
2017, Current period gross recoveries	0		0
2016, Current period gross recoveries			0
Prior, Current period gross recoveries	0		0
Revolving Loans Amortized Cost Basis, Current period gross recoveries	0		0
Total, Current period gross recoveries	0	0	0
2021, Current period net charge-offs (recoveries)	0
2020, Current period net charge-offs (recoveries)	0		0
2019, Current period net charge-offs (recoveries)	0		0
2018, Current period net charge-offs (recoveries)	0		0
2017, Current period net charge-offs (recoveries)	0		0
2016, Current period net charge-offs (recoveries)			0
Prior, Current period net charge-offs (recoveries)	0		0
Revolving Loans Amortized Cost Basis, Current period net charge-offs (recoveries)	0		0
Total, Current period net charge-offs (recoveries)	0		0
Mortgage warehouse lines of credit | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	0		0
2019	0		0
2018	0		0
2017	0		0
2016			0
Prior	0		0
Revolving Loans Amortized Cost Basis	1,090,347		1,084,001
Total Loans Receivable	1,090,347		1,084,001
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	1,858
2020	5,505		6,730
2019	2,665		3,326
2018	1,277		1,578
2017	154		203
2016			122
Prior	153		84
Revolving Loans Amortized Cost Basis	5,665		5,948
Total	17,277		17,991
Total Loans Receivable	17,277		17,991
2021, Current period gross charge-offs	0
2020, Current period gross charge-offs	0		0
2019, Current period gross charge-offs	22		39
2018, Current period gross charge-offs	2		23
2017, Current period gross charge-offs	0		8
2016, Current period gross charge-offs			0
Prior, Current period gross charge-offs	6		4
Revolving Loans Amortized Cost Basis, Current period gross charge-offs	14		2
Charge-offs	44	24	76
2021, Current period gross recoveries	0
2020, Current period gross recoveries	0		0
2019, Current period gross recoveries	0		0
2018, Current period gross recoveries	0		1
2017, Current period gross recoveries	0		7
2016, Current period gross recoveries			5
Prior, Current period gross recoveries	13		7
Revolving Loans Amortized Cost Basis, Current period gross recoveries	0		4
Total, Current period gross recoveries	13	$ 4	24
2021, Current period net charge-offs (recoveries)	0
2020, Current period net charge-offs (recoveries)	0		0
2019, Current period net charge-offs (recoveries)	22		39
2018, Current period net charge-offs (recoveries)	2		22
2017, Current period net charge-offs (recoveries)	0		1
2016, Current period net charge-offs (recoveries)			(5)
Prior, Current period net charge-offs (recoveries)	(7)		(3)
Revolving Loans Amortized Cost Basis, Current period net charge-offs (recoveries)	14		(2)
Total, Current period net charge-offs (recoveries)	31		52
Consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	1,858
2020	5,477		6,702
2019	2,656		3,318
2018	1,276		1,578
2017	154		203
2016			116
Prior	148		83
Revolving Loans Amortized Cost Basis	5,652		5,935
Total Loans Receivable	17,221		17,935
Consumer | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	28		28
2019	9		8
2018	1		0
2017	0		0
2016			6
Prior	5		1
Revolving Loans Amortized Cost Basis	13		13
Total Loans Receivable	$ 56		$ 56

Loans - Loan Portfolio Aging An

Loans - Loan Portfolio Aging Analysis (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 26,574	$ 25,763
Current Loans	5,823,186	5,699,010
Total Loans Receivable	5,849,760	5,724,773
Accruing Loans 90 or More Days Past Due	0	0
Loans at fair value	13,578	17,011
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	4,448	6,031
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	4,780	1,241
Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	17,346	18,491
Real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	13,732	11,214
Current Loans	2,893,906	2,793,705
Total Loans Receivable	2,907,638	2,804,919
Accruing Loans 90 or More Days Past Due	0	0
Real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	3,599	5,215
Real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	4,614	135
Real estate | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	5,519	5,864
Real estate | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	1,626	4,244
Current Loans	1,453,023	1,383,695
Total Loans Receivable	1,454,649	1,387,939
Accruing Loans 90 or More Days Past Due	0	0
Loans at fair value	13,600	17,000
Real estate | Commercial real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,055	1,072
Real estate | Commercial real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Real estate | Commercial real estate | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	571	3,172
Real estate | Construction/land/land development
Financing Receivable, Past Due [Line Items]
Total Past Due	2,342	2,698
Current Loans	545,894	529,162
Total Loans Receivable	548,236	531,860
Accruing Loans 90 or More Days Past Due	0	0
Real estate | Construction/land/land development | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	257	369
Real estate | Construction/land/land development | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	253	1
Real estate | Construction/land/land development | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	1,832	2,328
Real estate | Residential real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	9,764	4,272
Current Loans	894,989	880,848
Total Loans Receivable	904,753	885,120
Accruing Loans 90 or More Days Past Due	0	0
Real estate | Residential real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	2,287	3,774
Real estate | Residential real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	4,361	134
Real estate | Residential real estate | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	3,116	364
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total Past Due	12,781	14,425
Current Loans	1,821,717	1,803,437
Total Loans Receivable	1,834,498	1,817,862
Accruing Loans 90 or More Days Past Due	0	0
Commercial and industrial | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	791	703
Commercial and industrial | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	165	1,097
Commercial and industrial | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	11,825	12,625
Mortgage warehouse lines of credit
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Current Loans	1,090,347	1,084,001
Total Loans Receivable	1,090,347	1,084,001
Accruing Loans 90 or More Days Past Due	0	0
Mortgage warehouse lines of credit | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Mortgage warehouse lines of credit | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Mortgage warehouse lines of credit | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Consumer
Financing Receivable, Past Due [Line Items]
Total Past Due	61	124
Current Loans	17,216	17,867
Total Loans Receivable	17,277	17,991
Accruing Loans 90 or More Days Past Due	0	0
Consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	58	113
Consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1	9
Consumer | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 2	$ 2

Loans - Allowance for Loan Loss

Loans - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	$ 86,670	$ 37,520	$ 37,520
Charge-offs	3,027	1,425
Recoveries	133	324
Provision (Benefit)	1,360	18,396
Ending Balance	85,136	56,063	86,670
Accrued interest	20,200	12,600
Provision for credit losses	1,400	18,500
Provision (release) for off-balance sheet commitments	52	135
Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		1,248	1,248
Real estate | Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	15,430	10,013	10,013
Charge-offs	28	172	4,924
Recoveries	3	2	19
Provision (Benefit)	2,992	4,463
Ending Balance	18,397	9,254	15,430
Real estate | Commercial real estate | Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		(5,052)	(5,052)
Real estate | Construction/land/land development
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	8,191	3,711	3,711
Charge-offs	0	0	0
Recoveries	0	0	1
Provision (Benefit)	(802)	202
Ending Balance	7,389	5,054	8,191
Real estate | Construction/land/land development | Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		1,141	1,141
Real estate | Residential real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	9,418	6,332	6,332
Charge-offs	0	49	692
Recoveries	9	149	202
Provision (Benefit)	(1,133)	589
Ending Balance	8,294	4,495	9,418
Real estate | Residential real estate | Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		(2,526)	(2,526)
Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	51,857	16,960	16,960
Charge-offs	2,955	1,180	6,702
Recoveries	108	169	1,022
Provision (Benefit)	332	12,578
Ending Balance	49,342	35,823	51,857
Commercial and industrial | Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		7,296	7,296
Mortgage warehouse lines of credit
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	856	262	262
Charge-offs	0	0	0
Recoveries	0	0	0
Provision (Benefit)	67	488
Ending Balance	923	779	856
Mortgage warehouse lines of credit | Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		29	29
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	918	242	242
Charge-offs	44	24	76
Recoveries	13	4	24
Provision (Benefit)	(96)	76
Ending Balance	$ 791	658	918
Consumer | Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		$ 360	$ 360

Loans - Recorded Investment in

Loans - Recorded Investment in Loans and Allowance for Credit Losses by Loss Estimation Methodology (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 5,836,182	$ 5,707,762
Loans, allowance for credit losses	85,136	86,670	$ 56,063	$ 37,520
Loans at fair value	13,578	17,011
Probability of Default
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated, probability of default	5,800,341	5,679,234
Loan balance collectively evaluated	76,838	78,429
Fair Value of Collateral
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	20,555	10,955
Loan balance individually evaluated	3,334	2,360
Discounted Cash Flow
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	15,286	17,573
Loan balance individually evaluated	4,964	5,881
Real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	2,894,060	2,787,908
Real estate | Commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	1,441,071	1,370,928
Loans, allowance for credit losses	18,397	15,430	9,254	10,013
Loans at fair value	13,600	17,000
Real estate | Commercial real estate | Probability of Default
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated, probability of default	1,438,054	1,365,284
Loan balance collectively evaluated	18,388	14,896
Real estate | Commercial real estate | Fair Value of Collateral
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	571	3,173
Loan balance individually evaluated	0	525
Real estate | Commercial real estate | Discounted Cash Flow
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	2,446	2,471
Loan balance individually evaluated	9	9
Real estate | Construction/land/land development
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	548,236	531,860
Loans, allowance for credit losses	7,389	8,191	5,054	3,711
Real estate | Construction/land/land development | Probability of Default
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated, probability of default	545,796	528,894
Loan balance collectively evaluated	7,258	8,062
Real estate | Construction/land/land development | Fair Value of Collateral
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	2,112	2,621
Loan balance individually evaluated	131	128
Real estate | Construction/land/land development | Discounted Cash Flow
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	328	345
Loan balance individually evaluated	0	1
Real estate | Residential real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	904,753	885,120
Loans, allowance for credit losses	8,294	9,418	4,495	6,332
Real estate | Residential real estate | Probability of Default
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated, probability of default	894,416	879,015
Loan balance collectively evaluated	7,992	8,983
Real estate | Residential real estate | Fair Value of Collateral
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	8,482	2,009
Loan balance individually evaluated	0	0
Real estate | Residential real estate | Discounted Cash Flow
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	1,855	4,096
Loan balance individually evaluated	302	435
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	1,834,498	1,817,862
Loans, allowance for credit losses	49,342	51,857	35,823	16,960
Commercial and industrial | Probability of Default
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated, probability of default	1,814,453	1,804,049
Loan balance collectively evaluated	41,488	44,714
Commercial and industrial | Fair Value of Collateral
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	9,388	3,152
Loan balance individually evaluated	3,201	1,707
Commercial and industrial | Discounted Cash Flow
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	10,657	10,661
Loan balance individually evaluated	4,653	5,436
Mortgage warehouse lines of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	1,090,347	1,084,001
Loans, allowance for credit losses	923	856	779	262
Mortgage warehouse lines of credit | Probability of Default
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated, probability of default	1,090,347	1,084,001
Loan balance collectively evaluated	923	856
Mortgage warehouse lines of credit | Fair Value of Collateral
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	0	0
Loan balance individually evaluated	0	0
Mortgage warehouse lines of credit | Discounted Cash Flow
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	0	0
Loan balance individually evaluated	0	0
Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	17,277	17,991
Loans, allowance for credit losses	791	918	$ 658	$ 242
Consumer | Probability of Default
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated, probability of default	17,275	17,991
Loan balance collectively evaluated	789	918
Consumer | Fair Value of Collateral
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	2	0
Loan balance individually evaluated	2	0
Consumer | Discounted Cash Flow
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	0	0
Loan balance individually evaluated	$ 0	$ 0

Loans - Non Performing (Nonaccr

Loans - Non Performing (Nonaccrual) Loans Held For Investment (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	$ 10,944	$ 4,890
Nonaccrual	33,358	26,149
Real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	10,868	4,808
Nonaccrual	14,208	13,196
Real estate | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	1,012	1,053
Nonaccrual	1,085	3,704
Real estate | Construction/land/land development
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	955	1,319
Nonaccrual	2,431	2,962
Real estate | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	8,901	2,436
Nonaccrual	10,692	6,530
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	76	82
Nonaccrual	19,094	12,897
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	0	0
Nonaccrual	$ 56	$ 56

Loans - Troubled Debt Restructu

Loans - Troubled Debt Restructurings (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans classified as troubled debt restructurings	$ 8,752	$ 8,985
Nonaccrual TDRs
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans classified as troubled debt restructurings	5,515	5,671
Performing TDRs
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans classified as troubled debt restructurings	$ 3,237	$ 3,314

Loans - Pre-Modification Balanc

Loans - Pre-Modification Balances of TDR (Details) - Nonperforming Financial Instruments $ in Thousands	3 Months Ended
	Mar. 31, 2020USD ($)loan
Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans Restructured | loan	2
Pre-Modification Recorded Balance	$ 128
Total Modifications	$ 127
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans Restructured | loan	2
Pre-Modification Recorded Balance	$ 128
Total Modifications	127
Term Concessions | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	127
Term Concessions | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	127
Interest Rate Concessions | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	0
Interest Rate Concessions | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	0
Combination of Term and Rate Concessions | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	0
Combination of Term and Rate Concessions | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	$ 0

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Fair Value of Assets and Liabilities Recorded on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	$ 980,132	$ 1,004,674
Securities carried at fair value through income	11,077	11,554
Loans held for sale	82,706	136,026
Loans at fair value	13,578	17,011
Mortgage servicing rights	17,552	13,660	$ 16,122	$ 20,697
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	980,132	1,004,674
Securities carried at fair value through income	11,077	11,554
Loans held for sale	82,706	136,026
Loans at fair value	13,578	17,011
Mortgage servicing rights	17,552	13,660
Other assets - derivatives	17,677	23,694
Total recurring fair value measurements - assets	1,122,722	1,206,619
Other liabilities - derivatives	(15,432)	(23,020)
Total recurring fair value measurements - liabilities	(15,432)	(23,020)
Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0	0
Securities carried at fair value through income	0	0
Loans held for sale	0	0
Loans at fair value	0	0
Mortgage servicing rights	0	0
Other assets - derivatives	0	0
Total recurring fair value measurements - assets	0	0
Other liabilities - derivatives	0	0
Total recurring fair value measurements - liabilities	0	0
Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	938,657	960,609
Securities carried at fair value through income	0	0
Loans held for sale	82,706	136,026
Loans at fair value	0	0
Mortgage servicing rights	0	0
Other assets - derivatives	17,677	23,694
Total recurring fair value measurements - assets	1,039,040	1,120,329
Other liabilities - derivatives	(15,432)	(23,020)
Total recurring fair value measurements - liabilities	(15,432)	(23,020)
Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	41,475	44,065
Securities carried at fair value through income	11,077	11,554
Loans held for sale	0	0
Loans at fair value	13,578	17,011
Mortgage servicing rights	17,552	13,660
Other assets - derivatives	0	0
Total recurring fair value measurements - assets	83,682	86,290
Other liabilities - derivatives	0	0
Total recurring fair value measurements - liabilities	0	0
State and municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	409,173	442,185
Securities carried at fair value through income	11,077	11,554
State and municipal securities | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale		442,185
State and municipal securities | Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0	0
State and municipal securities | Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	367,698	398,120
State and municipal securities | Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	41,475	44,065
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	69,963	65,938
Corporate bonds | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	69,963	65,938
Corporate bonds | Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0	0
Corporate bonds | Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	69,963	65,938
Corporate bonds | Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0	0
U.S. government agency securities | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	5,637	849
U.S. government agency securities | Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0	0
U.S. government agency securities | Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	5,637	849
U.S. government agency securities | Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0	0
Commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	8,963	11,080
Commercial mortgage-backed securities | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	8,963	11,080
Commercial mortgage-backed securities | Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0	0
Commercial mortgage-backed securities | Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	8,963	11,080
Commercial mortgage-backed securities | Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0	0
Residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	205,060	214,951
Residential mortgage-backed securities | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	205,060	214,951
Residential mortgage-backed securities | Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0	0
Residential mortgage-backed securities | Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	205,060	214,951
Residential mortgage-backed securities | Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0	0
Residential collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	193,806	195,343
Residential collateralized mortgage obligations | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	193,806	195,343
Residential collateralized mortgage obligations | Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0	0
Residential collateralized mortgage obligations | Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	193,806	195,343
Residential collateralized mortgage obligations | Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0	0
Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	87,530	74,328
Asset-backed securities | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	87,530	74,328
Asset-backed securities | Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0	0
Asset-backed securities | Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	87,530	74,328
Asset-backed securities | Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	$ 0	$ 0

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Changes in Level 3 Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Loans at Fair Value
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Balance at beginning of period	$ 17,011	$ 17,670
Loss recognized in AOCI	0	0
Purchases, issuances, sales and settlements:
Originations	0	0
Sales		0
Settlements	(3,374)	(247)
Balance at end of period	13,578	17,589
Loans at Fair Value | Mortgage banking revenue
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Gain (loss) recognized in earnings	0	0
Loans at Fair Value | Other noninterest income
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Gain (loss) recognized in earnings	(59)	166
MSRs
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Balance at beginning of period	13,660	20,697
Loss recognized in AOCI	0	0
Purchases, issuances, sales and settlements:
Originations	1,943	653
Sales		0
Settlements	0	0
Balance at end of period	17,552	16,122
MSRs | Mortgage banking revenue
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Gain (loss) recognized in earnings	1,949	(5,228)
MSRs | Other noninterest income
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Gain (loss) recognized in earnings	0	0
Securities Available for Sale
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Balance at beginning of period	44,065	38,173
Loss recognized in AOCI	(489)	160
Purchases, issuances, sales and settlements:
Originations	0	0
Sales		(1,908)
Settlements	(2,101)	0
Balance at end of period	41,475	36,425
Securities Available for Sale | Mortgage banking revenue
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Gain (loss) recognized in earnings	0	0
Securities Available for Sale | Other noninterest income
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Gain (loss) recognized in earnings	0	0
Securities at Fair Value Through Income
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Balance at beginning of period	11,554	11,513
Loss recognized in AOCI	0	0
Purchases, issuances, sales and settlements:
Originations	0	0
Sales		0
Settlements	0	0
Balance at end of period	11,077	12,242
Securities at Fair Value Through Income | Mortgage banking revenue
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Gain (loss) recognized in earnings	0	0
Securities at Fair Value Through Income | Other noninterest income
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Gain (loss) recognized in earnings	$ (477)	$ 729

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Assumptions Used to Value Mortgage Servicing Rights (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Minimum
Fair Value, Option, Quantitative Disclosures [Line Items]
Prepayment speeds	7.78%	11.82%
Discount rates	9.00%	7.83%
Maximum
Fair Value, Option, Quantitative Disclosures [Line Items]
Prepayment speeds	35.56%	37.95%
Discount rates	10.50%	9.09%
Weighted Average
Fair Value, Option, Quantitative Disclosures [Line Items]
Prepayment speeds	14.47%	22.08%
Discount rates	9.50%	8.27%

Fair Value of Financial Instr_6

Fair Value of Financial Instruments - Difference Between Fair Value and Unpaid Principal Balance (Details) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Fair Value, Option, Quantitative Disclosures [Line Items]
Aggregate Fair Value	$ 107,361,000	$ 164,591,000
Aggregate Unpaid Principal Balance	104,765,000	157,333,000
Difference	2,596,000	7,258,000
Loans for which the fair value had been elected that were designated as nonaccrual or past due 90 days or more	0	0
Loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Aggregate Fair Value	82,706,000	136,026,000
Aggregate Unpaid Principal Balance	80,761,000	129,955,000
Difference	1,945,000	6,071,000
Loans, 90 days or more past due		681,000
Commercial real estate LHFI
Fair Value, Option, Quantitative Disclosures [Line Items]
Aggregate Fair Value	13,578,000	17,011,000
Aggregate Unpaid Principal Balance	13,386,000	16,760,000
Difference	192,000	251,000
Securities carried at fair value through income
Fair Value, Option, Quantitative Disclosures [Line Items]
Aggregate Fair Value	11,077,000	11,554,000
Aggregate Unpaid Principal Balance	10,618,000	10,618,000
Difference	459,000	936,000
U.S. government agency securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans, 90 days or more past due	$ 826,000	$ 473,000

Fair Value of Financial Instr_7

Fair Value of Financial Instruments - Changes in Fair Value of Assets Classified in the Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Mortgage banking revenue
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Total fair value option impact on noninterest income	$ (4,125)	$ 1,046
Other income
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Total fair value option impact on noninterest income	(536)	895
Other income | Loans at fair value held for investment
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Total fair value option impact on noninterest income	(59)	166
Other income | Securities carried at fair value through income
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Total fair value option impact on noninterest income	(477)	729
Noninterest income
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Total fair value option impact on noninterest income	$ (4,661)	$ 1,941

Fair Value of Financial Instr_8

Fair Value of Financial Instruments - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable equity securities held in other financial institutions	$ 47,274,000	$ 62,586,000
Impairment recorded on investments in equity securities that do not have readily determinable fair values	0
Liability to repurchase past due GNMA loans	62,200,000	55,500,000
Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of impaired loans	15,400,000	12,300,000
Foreclosed assets	3,900,000	$ 1,600,000
Residential real estate | Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 3 | Real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Residential mortgage loans in the process of foreclosure	$ 0
Minimum | Measurement Input, Credit Spread
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Credit spread, securities at fair value through income	0.83%	0.83%
Credit spread, loans held-for-investment	2.90%	2.90%
Maximum | Measurement Input, Credit Spread
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Credit spread, securities at fair value through income	2.27%	2.27%
Credit spread, loans held-for-investment	3.53%	4.13%

Fair Value of Financial Instr_9

Fair Value of Financial Instruments - Carrying Value and Estimated Fair Values of Financial Instruments Not Measured at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities held to maturity	$ 40,800	$ 41,205
Carrying Value | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	264,901	377,214
Carrying Value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Non-marketable equity securities held in other financial institutions	47,274	62,586
Accrued interest and loan fees receivable	27,450	27,146
Deposits	6,346,194	5,751,315
FHLB advances and other borrowings	325,751	984,608
Subordinated debentures	157,239	157,181
Accrued interest payable	3,445	3,556
Carrying Value | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities held to maturity	37,983	38,128
LHFI , net	5,751,046	5,621,092
Estimated Fair Value | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	264,901	377,214
Estimated Fair Value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Non-marketable equity securities held in other financial institutions	47,274	62,586
Accrued interest and loan fees receivable	27,450	27,146
Deposits	6,349,699	5,756,312
FHLB advances and other borrowings	312,306	991,943
Subordinated debentures	156,451	156,395
Accrued interest payable	3,445	3,556
Estimated Fair Value | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities held to maturity	40,800	41,205
LHFI , net	$ 5,729,954	$ 5,802,744

Mortgage Banking - Mortgage Ban

Mortgage Banking - Mortgage Banking Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Mortgage Banking [Abstract]
Origination	$ 376	$ 275
Gain on sale of loans held for sale	6,940	1,873
Servicing	1,501	1,601
Total gross mortgage revenue	8,817	3,749
Mortgage HFS and pipeline fair value adjustment	(3,158)	1,266
MSR valuation adjustment, net of amortization	1,949	(5,228)
MSR hedge impact	(3,031)	2,982
Mortgage banking revenue	$ 4,577	$ 2,769

Mortgage Banking - Activity in

Mortgage Banking - Activity in Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance at beginning of period	$ 13,660	$ 20,697
Addition of servicing rights	1,943	653
Valuation adjustment, net of amortization	1,949	(5,228)
Balance at end of period	$ 17,552	$ 16,122

Mortgage Banking - Narrative (D

Mortgage Banking - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Mortgage Banking [Abstract]
Annual servicing fee income rate	0.28%
Mortgage loan servicing putback expenses	$ 28
Reserve for mortgage loan servicing putback expenses	339	$ 311
Liability to repurchase past due GNMA loans	$ 62,200	$ 55,500

Borrowings - Summary of Borrowe

Borrowings - Summary of Borrowed Funds (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt Instrument, Redemption [Line Items]
Federal Home Loan Bank ("FHLB") advances and other borrowings	$ 325,751	$ 984,608
FHLB
Debt Instrument, Redemption [Line Items]
Net amounts available under the blanket floating lien	1,050,000	456,900
GNMA repurchase liability
Debt Instrument, Redemption [Line Items]
Federal Home Loan Bank ("FHLB") advances and other borrowings	62,244	55,485
Short-term FHLB advances
Debt Instrument, Redemption [Line Items]
Federal Home Loan Bank ("FHLB") advances and other borrowings	257,186	270,715
Subordinated debentures, net
Debt Instrument, Redemption [Line Items]
Subordinated debentures, net	157,239	157,181
Federal Home Loan Bank Advances Maturing August 23 2033
Debt Instrument, Redemption [Line Items]
Amount	$ 250,000	$ 250,000
Interest Rate	1.65%	1.65%
Overnight repurchase agreements with depositors
Debt Instrument, Redemption [Line Items]
Federal Home Loan Bank ("FHLB") advances and other borrowings	$ 6,321	$ 8,408
Short-term FHLB advances
Debt Instrument, Redemption [Line Items]
Federal Home Loan Bank ("FHLB") advances and other borrowings	$ 0	650,000
Federal Home Loan Bank Advances Maturing January 4 2021
Debt Instrument, Redemption [Line Items]
Amount		$ 650,000
Interest Rate		0.10%

Derivative Financial Instrume_3

Derivative Financial Instruments - Fair Value of Derivative Instruments on the Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Notional Amounts	$ 1,026,869	$ 1,030,766
Fair Values	2,472	1,380
Interest Rate Swaps | Derivatives Not Designated as Hedging Instruments | Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amounts	355,306	347,096
Fair Values	(14,735)	(21,321)
Interest Rate Swaps | Derivatives Not Designated as Hedging Instruments | Other Assets
Derivatives, Fair Value [Line Items]
Notional Amounts	334,916	326,542
Fair Values	13,881	20,207
Risk Participation Derivative | Derivatives Not Designated as Hedging Instruments | Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amounts	63,374	63,374
Fair Values	(13)	(18)
Forward Commitments to Purchase | Derivatives Not Designated as Hedging Instruments | Other Liabilities
Derivatives, Fair Value [Line Items]
Fair Values	(457)	(317)
Forward Commitments to Purchase | Derivatives Not Designated as Hedging Instruments | Other Assets
Derivatives, Fair Value [Line Items]
Notional Amounts	78,000	107,000
Forward Commitments to Sell | Derivatives Not Designated as Hedging Instruments | Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amounts	115,000	107,200
Fair Values	1,704	(658)
Interest Rate-Lock Commitments | Derivatives Not Designated as Hedging Instruments | Other Assets
Derivatives, Fair Value [Line Items]
Notional Amounts	80,273	79,554
Fair Values	2,092	3,487
Cash Flow Hedging | Interest Rate Swaps | Derivatives Designated as Cash Flow Hedging Instruments | Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amounts	21,000	21,000
Fair Values	$ (227)	$ (706)

Derivative Financial Instrume_4

Derivative Financial Instruments - Weighted-average Rates Paid and Received (Details) - Interest Rate Swaps	Mar. 31, 2021
Cash flow hedges | Paid
Derivative [Line Items]
Weighted-Average Interest Rate	4.81%
Cash flow hedges | Received
Derivative [Line Items]
Weighted-Average Interest Rate	2.93%
Financial Institution | Non-Hedging | Paid
Derivative [Line Items]
Weighted-Average Interest Rate	4.49%
Financial Institution | Non-Hedging | Received
Derivative [Line Items]
Weighted-Average Interest Rate	2.70%
Customer | Non-Hedging | Paid
Derivative [Line Items]
Weighted-Average Interest Rate	2.75%
Customer | Non-Hedging | Received
Derivative [Line Items]
Weighted-Average Interest Rate	4.51%

Derivative Financial Instrume_5

Derivative Financial Instruments - Gains and Losses Recognized on Derivative Instruments Not Designated as Hedging Instruments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Mortgage banking revenue
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivatives not designated as hedging instruments	$ (1,206)	$ 2,513
Other non-interest income
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivatives not designated as hedging instruments	$ 307	$ (685)

Derivative Financial Instrume_6

Derivative Financial Instruments - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Cash collateral on deposit	$ 12.8	$ 22.2

Stock and Incentive Compensat_3

Stock and Incentive Compensation Plans - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021USD ($)shares
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Outstanding stock options term (does not exceed)	20 years
Restricted Stock
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Unrecognized compensation cost | $	$ 1.9
Unrecognized compensation cost weighted average period for recognition	2 years
2012 Plan
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Maximum number of common stock available for issuance (in shares) | shares	915,819
Minimum | Restricted Stock
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Service period in which time-vested awards are earned	1 year
Maximum | Restricted Stock
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Service period in which time-vested awards are earned	5 years

Stock and Incentive Compensat_4

Stock and Incentive Compensation Plans - Share-based Compensation Cost (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock	$ 614,000	$ 537,000
Related tax benefits recognized in net income	129,000	113,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock	$ 0	$ 0

Stock and Incentive Compensat_5

Stock and Incentive Compensation Plans - Time-vested Award Activity (Details) - Restricted Stock - $ / shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Shares
Nonvested shares, beginning balance (in shares)	103,359	149,449
Granted (in shares)	6,286	0
Vested (in shares)	(1,782)	(2,073)
Forfeited (in shares)	(946)	(4,129)
Nonvested shares, ending balance (in shares)	106,917	143,247
Weighted Average Grant-Date Fair Value
Nonvested shares, beginning balance (in dollars per share)	$ 31.51	$ 35.15
Granted (in dollars per share)	33.82	0
Vested (in dollars per share)	27.20	25.81
Forfeited (in dollars per share)	24.69	37.14
Nonvested shares, ending balance (in dollars per share)	$ 31.78	$ 35.23

Stock and Incentive Compensat_6

Stock and Incentive Compensation Plans - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Number of Shares
Outstanding at beginning of period (in shares)	224,000	254,000	254,000
Exercised (in shares)	(14,800)	(30,000)
Outstanding at end of period (in shares)	209,200	224,000	224,000	254,000
Weighted Average Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 10.86	$ 10.55	$ 10.55
Exercised (in dollars per share)	9.89	8.25
Outstanding at end of period (in dollars per share)	$ 10.93	$ 10.86	$ 10.86	$ 10.55
Weighted average remaining contractual term (in years)			4 years 11 months 1 day	5 years 9 months 21 days
Weighted average remaining contractual term, exercisable (in years)	5 years 18 days	5 years 8 months 1 day
Aggregate Intrinsic Value			$ 3,789	$ 6,932
Aggregate intrinsic value, exercisable	$ 6,587	$ 2,104

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance	$ 647,150	$ 599,262
Net change	(13,464)	9,489
Stockholders' equity, ending balance	656,355	606,631
Unrealized Gain (Loss) on AFS Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance	26,206	6,412
Net change	(13,843)	10,044
Stockholders' equity, ending balance	12,363	16,456
Unrealized (Loss) Gain on Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance	(557)	(79)
Net change	379	(555)
Stockholders' equity, ending balance	(178)	(634)
Accumulated Other Comprehensive Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance	25,649	6,333
Net change	(13,464)	9,489
Stockholders' equity, ending balance	$ 12,185	$ 15,822

Capital and Regulatory Matter_2

Capital and Regulatory Matters - Narrative (Details) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021USD ($)$ / sharesshares	Mar. 31, 2020USD ($)	Dec. 31, 2020
Resale Agreement Counterparty [Line Items]
Benefit to capital risk-weighted assets capital ratio, basis point			0.0019
Repurchase of common stock (in shares) | shares	37,568
Buyback program at a price per share (in dollars per share) | $ / shares	$ 33.42
Repurchase of common stock, value	$ 1,256	$ 723
Stock repurchase, cumulative shares | shares	330,868
Stock repurchase, cumulative value	$ 10,800
Repurchased amount	28,000
Origin Bank | Origin Bank
Resale Agreement Counterparty [Line Items]
Aggregate dividends without prior regulatory approval	$ 43,400

Capital and Regulatory Matter_3

Capital and Regulatory Matters - Actual Capital Amounts and Ratios (Details) $ in Thousands	Mar. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Origin Bancorp, Inc.
Common Equity Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 626,931	$ 604,306
Actual, ratio	0.1017	0.0995
Minimum capital required, amount	$ 431,516	$ 425,012
Minimum capital required, ratio	7.00%	7.00%
Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 636,315	$ 613,682
Actual, ratio	0.1032	0.1011
Minimum capital required, amount	$ 524,097	$ 516,107
Minimum capital required, ratio	0.0850	0.0850
Total Capital to Risk-Weighted Assets
Actual, amount	$ 858,644	$ 837,058
Actual, ratio	0.1392	0.1379
Minimum capital required, amount	$ 647,684	$ 637,539
Minimum capital required, ratio	0.1050	0.1050
Leverage Ratio
Actual, amount	$ 636,315	$ 613,682
Actual, ratio	0.0867	0.0862
Minimum capital required, amount	$ 293,571	$ 284,771
Minimum capital required, ratio	0.0400	0.0400
Origin Bank | Origin Bank
Common Equity Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 660,585	$ 637,863
Actual, ratio	0.1074	0.1053
Minimum capital required, amount	$ 430,549	$ 424,010
Minimum capital required, ratio	7.00%	7.00%
Well capitalized, amount	$ 399,795	$ 393,724
Well capitalized, ratio	6.50%	6.50%
Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 660,585	$ 637,863
Actual, ratio	0.1074	0.1053
Minimum capital required, amount	$ 522,809	$ 514,870
Minimum capital required, ratio	0.0850	0.0850
Well capitalized, amount	$ 492,056	$ 484,583
Well capitalized, ratio	0.0800	0.0800
Total Capital to Risk-Weighted Assets
Actual, amount	$ 804,330	$ 782,503
Actual, ratio	0.1308	0.1292
Minimum capital required, amount	$ 645,678	$ 636,019
Minimum capital required, ratio	0.1050	0.1050
Well capitalized, amount	$ 614,931	$ 605,732
Well capitalized, ratio	0.1000	0.1000
Leverage Ratio
Actual, amount	$ 660,585	$ 637,863
Actual, ratio	0.0902	0.0899
Minimum capital required, amount	$ 292,942	$ 283,842
Minimum capital required, ratio	0.0400	0.0400
Well capitalized, amount	$ 366,178	$ 354,802
Well capitalized, ratio	0.0500	0.0500

Commitments and Contingencies -

Commitments and Contingencies - Off-Balance Sheet Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Commitments to extend credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet financial instrument	$ 1,390,528	$ 1,341,501
Standby letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet financial instrument	$ 48,967	$ 42,911

Commitments and Contingencies_2

Commitments and Contingencies - Narrative (Details)	Mar. 31, 2021USD ($)loan	Dec. 31, 2020USD ($)loan
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Credit card guarantees	$ 205,000	$ 200,000
Lending-related Commitments
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Reserve for lending related commitments	$ 2,400,000	$ 2,300,000
Letter of credit | FHLB
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Number of instruments | loan	37	35
Maximum borrowing capacity	$ 590,900,000	$ 527,400,000

Uncategorized Items - obnk-2021

Label	Element	Value
Accounting Standards Update [Extensible List]	us-gaap_AccountingStandardsUpdateExtensibleList	us-gaap:AccountingStandardsUpdate201613Member