Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 278,924	$ 284,967	$ 58,583
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments (Note 7)	68,273	(42,462)	21,682
Pension and post-retirement plan actuarial gains, net of tax (Note 7)	32,574	31,262	7,683
Unrealized losses on cash flow hedges (Note 7)	(215)	0	0
Unrealized gains on available-for-sale securities (Note 7)	0	0	2
Reclassification of currency translation from accumulated other comprehensive loss into net income (Note 7)	(764)	(1,200)	101
Total other comprehensive income (loss), net of tax	99,868	(12,400)	29,468
Comprehensive income	$ 378,792	$ 272,567	$ 88,051