Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Common Stock	Paid-in Capital	Accumulated Other Comprehensive Earnings (Loss)	Retained Earnings	Deferred Compensation	Treasury Stock at Cost	Total
Beginning balance at Dec. 31, 2024	$ 1,376	$ 367,645	$ (173,723)	$ 1,719,668	$ 13,498	$ (406,497)	$ 1,521,967
Beginning balance (in shares) at Dec. 31, 2024	91,738,132
Increase Decrease In Shareholders Equity Roll Forward
Net earnings				63,214			63,214
Other comprehensive earnings (loss), net of tax			30,030				30,030
Deferred compensation					(1,686)	1,686
Share-based compensation		2,777					2,777
Share-based compensation (in shares)	34,602
Dividends and dividend equivalents				(13,776)			(13,776)
Ending balance at Mar. 31, 2025	$ 1,376	370,422	(143,693)	1,769,106	11,812	(404,811)	1,604,212
Ending balance (in shares) at Mar. 31, 2025	91,772,734
Beginning balance at Dec. 31, 2025	$ 1,377	376,679	(88,074)	1,881,213	14,082	(407,081)	1,778,196
Beginning balance (in shares) at Dec. 31, 2025	91,878,651
Increase Decrease In Shareholders Equity Roll Forward
Net earnings				54,885			54,885
Other comprehensive earnings (loss), net of tax			(25,366)				(25,366)
Deferred compensation					(2,546)	2,546
Share-based compensation	$ 1	3,396					3,397
Share-based compensation (in shares)	55,280
Dividends and dividend equivalents				(14,722)			(14,722)
Ending balance at Mar. 31, 2026	$ 1,378	$ 380,075	$ (113,440)	$ 1,921,376	$ 11,536	$ (404,535)	$ 1,796,390
Ending balance (in shares) at Mar. 31, 2026	91,933,931