Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Total
Balance at Dec. 31, 2019	$ 15,828	$ 274,785	$ 245,836	$ (1,098)	$ 535,351
Net income			60,582		60,582
Other comprehensive income, net of tax				2,474	2,474
Common cash dividends declared			(3,779)		(3,779)
Repurchase and cancellation of shares of common stock as a result of share repurchase program	(101)	(1,843)	(1,835)		(3,779)
Stock-based compensation expense		2,150			2,150
Issuance of common stock under employee benefit plans	79	715			794
Balance at Dec. 31, 2020	15,806	275,807	300,804	1,376	593,793
Net income			98,905		98,905
Other comprehensive income, net of tax				176	176
Common cash dividends declared			(3,781)		(3,781)
Repurchase and cancellation of shares of common stock as a result of share repurchase program	(293)	(4,961)	(8,914)		(14,168)
Stock-based compensation expense		2,352			2,352
Issuance of common stock under employee benefit plans	100	570			670
Balance (ASU 2016-01) at Dec. 31, 2021			(937)		(937)
Balance at Dec. 31, 2021	15,613	273,768	386,077	1,552	677,010
Net income			99,066		99,066
Other comprehensive income, net of tax				(66,450)	(66,450)
Common cash dividends declared			(4,022)		(4,022)
Issuance of shares of common stock as a result of the acquisition	2,071	115,143			117,214
Repurchase and cancellation of shares of common stock as a result of share repurchase program	(970)	(20,977)	(31,007)		(52,954)
Stock-based compensation expense		2,438			2,438
Issuance of common stock under employee benefit plans	82	340			422
Balance at Dec. 31, 2022	$ 16,796	$ 370,712	$ 450,114	$ (64,898)	$ 772,724