Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands		Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Common Stock Cumulative Effect, Period of Adoption, Adjustment	Treasury Stock	Treasury Stock Cumulative Effect, Period of Adoption, Adjustment	Additional Paid-in Capital	Additional Paid-in Capital Cumulative Effect, Period of Adoption, Adjustment	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Cumulative Effect, Period of Adoption, Adjustment
Beginning balance (in shares) at Dec. 31, 2020				51,679,516
Beginning balance at Dec. 31, 2020		$ 624,428		$ 523		$ (6,061)		$ 522,911		$ 77,652		$ 29,403
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		27,612		0		0		0		27,612		0
Change in unrealized depreciation of available-for-sale securities		(2,674)		$ 0		0		0		0		(2,674)
Other comprehensive loss		(2,674)
Issuance of shares from equity-based awards (in shares)				243,357
Issuance of shares from equity-based awards		(496)		$ 2		0		(498)		0		0
Open market common share repurchases		(13,939)		$ 0		(13,939)		0		0		0
Open market common share repurchases (in shares)				(964,193)
Employee receivables from sale of stock		35		$ 0		0		0		35		0
Stock-based compensation		2,224		$ 0		0		2,224		0		0
Ending balance (in shares) at Jun. 30, 2021				50,958,680
Ending balance at Jun. 30, 2021		637,190		$ 525		(20,000)		524,637		105,299		26,729
Beginning balance (in shares) at Mar. 31, 2021				51,678,669
Beginning balance at Mar. 31, 2021		628,834		$ 523		(7,113)		523,156		89,722		22,546
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		15,577		0		0		0		15,577		0
Other comprehensive loss		4,183		$ 0		0		0		0		4,183
Issuance of shares from equity-based awards (in shares)				155,707
Issuance of shares from equity-based awards		(92)		$ 2		0		(94)		0		0
Open market common share repurchases		(12,887)		$ 0		(12,887)		0		0		0
Open market common share repurchases (in shares)				(875,696)
Stock-based compensation		1,575		$ 0		0		1,575		0		0
Ending balance (in shares) at Jun. 30, 2021				50,958,680
Ending balance at Jun. 30, 2021		637,190		$ 525		(20,000)		524,637		105,299		26,729
Beginning balance (in shares) at Dec. 31, 2021				50,450,045
Beginning balance at Dec. 31, 2021		667,573		$ 526		(28,347)		526,806		147,099		21,489
Beginning balance (ASU 2016-13 [Member]) at Dec. 31, 2021	[1]		$ (2,610)		$ 0		$ 0		$ 0		$ (2,610)		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		32,373		0		0		0		32,373		0
Change in unrealized depreciation of available-for-sale securities		(70,918)		$ 0		0		0		0		(70,918)
Other comprehensive loss		(70,918)
Issuance of shares from equity-based awards (in shares)				348,729
Issuance of shares from equity-based awards		(657)		$ 3		0		(660)		0		0
Open market common share repurchases		(20,154)		$ 0		(20,154)		0		0		0
Open market common share repurchases (in shares)				(1,296,325)
Employee receivables from sale of stock		6		$ 0		0		0		6		0
Stock-based compensation		2,235		$ 0		0		2,235		0		0
Exercise of warrants (in shares)				33,500
Exercise of warrants		167		$ 0		0		167		0		0
Ending balance (in shares) at Jun. 30, 2022				49,535,949
Ending balance at Jun. 30, 2022		608,015		$ 529		(48,501)		528,548		176,868		(49,429)
Beginning balance (in shares) at Mar. 31, 2022				49,728,253
Beginning balance at Mar. 31, 2022		623,199		$ 529		(45,109)		527,468		161,323		(21,012)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		15,545		0		0		0		15,545		0
Other comprehensive loss		(28,417)		$ 0		0		0		0		(28,417)
Issuance of shares from equity-based awards (in shares)				45,689
Issuance of shares from equity-based awards		(40)		$ 0		0		(40)		0		0
Open market common share repurchases		(3,392)		$ 0		(3,392)		0		0		0
Open market common share repurchases (in shares)				(237,993)
Stock-based compensation		1,120		$ 0		0		1,120		0		0
Ending balance (in shares) at Jun. 30, 2022				49,535,949
Ending balance at Jun. 30, 2022		$ 608,015		$ 529		$ (48,501)		$ 528,548		$ 176,868		$ (49,429)

[1] (1)   Includes the impact of implementing Accounting Standards Update (“ASU”)   2016-13, Financial Instruments - Credit Losses (Accounting Standard Codification   (“ASC”) 326): Measurement of Credit Losses on Financial Instruments.   See “Note 1: Nature of Operations and Summary of Significant Accounting   Policies” in the Notes to Condensed Consolidated Financial Statements (unaudited) for more information on the   Company’s adoption of this guidance   and the impact to the Company’s   results of operations.