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
Shareholders' Equity Attributable to Parent, Beginning Balance at Dec. 31, 2023	$ 1,371	$ 361,660	$ (166,303)	$ 1,609,785	$ 13,539	$ (406,538)	$ 1,413,514
Shares, Outstanding, Beginning Balance at Dec. 31, 2023	91,280,094
Increase Decrease In Shareholders Equity Roll Forward
Net Income (Loss)				127,900			127,900
Other comprehensive earnings (loss), net of tax			(12,671)				(12,671)
Deferred compensation					(790)	790
Share-based compensation	$ 2	4,355					4,357
Share-based compensation (in shares)	139,668
Dividends and dividend equivalents				(12,348)			(12,348)
Shareholders' Equity Attributable to Parent, Ending Balance at Mar. 31, 2024	$ 1,373	366,015	(178,974)	1,725,337	12,749	(405,748)	1,520,752
Shares, Outstanding, Ending Balance at Mar. 31, 2024	91,419,762
Shareholders' Equity Attributable to Parent, Beginning Balance at Dec. 31, 2024	$ 1,376	367,645	(173,723)	1,719,668	13,498	(406,497)	1,521,967
Shares, Outstanding, Beginning Balance at Dec. 31, 2024	91,738,132
Increase Decrease In Shareholders Equity Roll Forward
Net Income (Loss)				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)
Shareholders' Equity Attributable to Parent, Ending Balance at Mar. 31, 2025	$ 1,376	$ 370,422	$ (143,693)	$ 1,769,106	$ 11,812	$ (404,811)	$ 1,604,212
Shares, Outstanding, Ending Balance at Mar. 31, 2025	91,772,734