CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	AOCI	Treasury Stock
Beginning balance (in shares) at Dec. 31, 2020		54,404,379
Beginning balance at Dec. 31, 2020	$ 1,270,069	$ 56	$ 1,253,360	$ 20,830	$ 33,309	$ (37,486)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	123,449			123,449
OCI, net of tax	(57,067)				(57,067)
Stock issued in acquisition, net of stock issuance costs (in shares)		2,206,237
Stock issued in acquisition, net of stock issuance costs	58,955	$ 2	58,953
Repurchase of stock (in shares)		(1,323,000)
Repurchase of stock	(33,043)					(33,043)
Issuance of treasury stock (in shares)		30,390
Issuance of treasury stock	646		(136)			782
Net issuance of treasury stock for RSU/DSU vesting and related tax (in shares)		116,904
Net issuance of treasury stock for RSU/PSU/DSU vesting and related tax	(997)		(4,109)			3,112
Cash dividends common stock	(50,764)			(50,764)
Stock dividend equivalents RSUs	0		1,052	(1,052)
Stock-based compensation	7,864		7,864
Ending balance (in shares) at Dec. 31, 2021		55,434,910
Ending balance at Dec. 31, 2021	1,319,112	$ 58	1,316,984	92,463	(23,758)	(66,635)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	128,311			128,311
OCI, net of tax	(249,520)				(249,520)
Repurchase of stock (in shares)		(388,614)
Repurchase of stock	(9,912)					(9,912)
Issuance of treasury stock (in shares)		57,385
Issuance of treasury stock	1,157		(320)			1,477
Net issuance of treasury stock for RSU/DSU vesting and related tax (in shares)		175,225
Net issuance of treasury stock for RSU/PSU/DSU vesting and related tax	(1,276)		(5,789)			4,513
Issuance of treasury stock for stock options exercised, net of shares redeemed and related tax (in shares)		218
Issuance of treasury stock for stock options exercised, net of shares redeemed and related tax	0		(5)			5
Cash dividends common stock	(50,863)			(50,863)
Stock dividend equivalents RSUs	0		1,142	(1,142)
Stock-based compensation	8,968		8,968
Ending balance (in shares) at Dec. 31, 2022		55,279,124
Ending balance at Dec. 31, 2022	1,145,977	$ 58	1,320,980	168,769	(273,278)	(70,552)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	122,565			122,565
OCI, net of tax	54,475				54,475
Repurchase of stock (in shares)		(227,935)
Repurchase of stock	(4,482)					(4,482)
Issuance of treasury stock (in shares)		59,845
Issuance of treasury stock	1,011		(530)			1,541
Net issuance of treasury stock for RSU/DSU vesting and related tax (in shares)		132,091
Net issuance of treasury stock for RSU/PSU/DSU vesting and related tax	(1,093)		(4,494)			3,401
Net issuance of treasury stock for warrants exercised (in shares)		994
Net issuance of treasury stock for warrants exercised	9		(17)			26
Cash dividends common stock	(53,076)			(53,076)
Stock dividend equivalents RSUs	0		1,061	(1,061)
Stock-based compensation	6,595		6,595
Ending balance (in shares) at Dec. 31, 2023		55,244,119
Ending balance at Dec. 31, 2023	$ 1,271,981	$ 58	$ 1,323,595	$ 237,197	$ (218,803)	$ (70,066)