Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2020		56,200,487
Beginning balance at Dec. 31, 2020	$ 2,132,733	$ 296,483	$ (101,554)	$ 1,296,963	$ 615,773	$ 25,068
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	175,892				175,892
Other comprehensive income (loss)	(35,511)					(35,511)
Comprehensive income (loss)	140,381
Repurchase of shares in connection with stock repurchase program (in shares)		(612,107)
Repurchase of shares in connection with stock repurchase program	(21,315)		(21,315)
Cash dividends	(50,017)				(50,017)
Issuance of common stock for stock-based compensation awards (in shares)		167,853
Issuance of common stock for stock-based compensation awards	(2,003)		4,842	(6,845)
Stock-based compensation expense	10,074			10,074
Ending balance (in shares) at Dec. 31, 2021		55,756,233
Ending balance at Dec. 31, 2021	2,209,853	$ 296,483	(118,027)	1,300,192	741,648	(10,443)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	166,068				166,068
Other comprehensive income (loss)	(198,594)					(198,594)
Comprehensive income (loss)	(32,526)
Cash dividends	(49,991)				(49,991)
Issuance of common stock for stock-based compensation awards (in shares)		196,871
Issuance of common stock for stock-based compensation awards	(2,825)		6,450	(9,275)
Stock-based compensation expense	$ 11,505			11,505
Ending balance (in shares) at Dec. 31, 2022	55,953,104	55,953,104
Ending balance at Dec. 31, 2022	$ 2,136,016	$ 296,483	(111,577)	1,302,422	857,725	(209,037)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	144,678				144,678
Other comprehensive income (loss)	54,781					54,781
Comprehensive income (loss)	199,459
Cash dividends	(50,279)				(50,279)
Issuance of common stock for stock-based compensation awards (in shares)		189,103
Issuance of common stock for stock-based compensation awards	(1,529)		6,328	(7,857)
Stock-based compensation expense	$ 13,716			13,716
Ending balance (in shares) at Dec. 31, 2023	56,142,207	56,142,207
Ending balance at Dec. 31, 2023	$ 2,297,383	$ 296,483	$ (105,249)	$ 1,308,281	$ 952,124	$ (154,256)