Condensed Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interest
Beginning balance at Dec. 31, 2023	$ 1,384,922	$ 17,992	$ 940,101	$ 550,641	$ (124,415)	$ 603
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	35,258			35,227		31
Amounts reported in other comprehensive loss	(22,645)				(22,572)	(73)
Dividends declared	(8,186)			(8,186)
Share issuance and equity-based compensation plans, net	2,443	(2)	2,445
Ending balance at Mar. 31, 2024	$ 1,391,792	17,990	942,546	577,682	(146,987)	561
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared (in dollars per share)	$ 0.455
Beginning balance at Dec. 31, 2023	$ 1,384,922	17,992	940,101	550,641	(124,415)	603
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	102,540
Amounts reported in other comprehensive loss	(4,111)
Ending balance at Sep. 30, 2024	$ 1,446,270	17,852	928,156	628,103	(128,448)	607
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared (in dollars per share)	$ 1.395
Beginning balance at Mar. 31, 2024	$ 1,391,792	17,990	942,546	577,682	(146,987)	561
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	34,910			34,885		25
Amounts reported in other comprehensive loss	(18,774)				(18,775)	1
Dividends declared	(8,163)			(8,163)
Shares purchased under share repurchase program, net of excise taxes	(8,355)	(49)	(8,306)
Share issuance and equity-based compensation plans, net	4,196	0	4,196
Ending balance at Jun. 30, 2024	$ 1,395,606	17,941	938,436	604,404	(165,762)	587
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared (in dollars per share)	$ 0.455
Net income (loss)	$ 32,372			32,346		26
Amounts reported in other comprehensive loss	37,308				37,314	(6)
Dividends declared	(8,647)			(8,647)
Shares purchased under share repurchase program, net of excise taxes	(14,713)	(89)	(14,624)
Share issuance and equity-based compensation plans, net	4,344	0	4,344
Ending balance at Sep. 30, 2024	$ 1,446,270	17,852	928,156	628,103	(128,448)	607
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared (in dollars per share)	$ 0.485
Beginning balance at Dec. 31, 2024	$ 1,354,183	17,674	903,781	633,731	(201,619)	616
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	12,917			12,922		(5)
Amounts reported in other comprehensive loss	25,968				25,964	4
Dividends declared	(8,574)			(8,574)
Shares purchased under share repurchase program, net of excise taxes	0	0	0
Share issuance and equity-based compensation plans, net	2,006	6	2,000
Ending balance at Mar. 31, 2025	$ 1,386,500	17,680	905,781	638,079	(175,655)	615
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared (in dollars per share)	$ 0.485
Beginning balance at Dec. 31, 2024	$ 1,354,183	17,674	903,781	633,731	(201,619)	616
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(23,160)
Amounts reported in other comprehensive loss	86,421
Ending balance at Sep. 30, 2025	$ 1,366,883	17,368	876,911	584,706	(115,333)	3,231
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared (in dollars per share)	$ 1.478
Beginning balance at Mar. 31, 2025	$ 1,386,500	17,680	905,781	638,079	(175,655)	615
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(66,563)			(66,580)		17
Amounts reported in other comprehensive loss	60,601				60,474	127
Noncontrolling interest from acquisition	2,451					2,451
Dividends declared	(8,436)			(8,436)
Shares purchased under share repurchase program, net of excise taxes	(32,982)	(296)	(32,686)
Share issuance and equity-based compensation plans, net	3,884	10	3,874
Ending balance at Jun. 30, 2025	$ 1,345,455	17,394	876,969	563,063	(115,181)	3,210
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared (in dollars per share)	$ 0.485
Net income (loss)	$ 30,486			30,469		17
Amounts reported in other comprehensive loss	(148)				(152)	4
Dividends declared	(8,826)			(8,826)
Shares purchased under share repurchase program, net of excise taxes	(3,836)	(30)	(3,806)
Share issuance and equity-based compensation plans, net	3,752	4	3,748
Ending balance at Sep. 30, 2025	$ 1,366,883	$ 17,368	$ 876,911	$ 584,706	$ (115,333)	$ 3,231
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared (in dollars per share)	$ 0.508