Reclassifications Out of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period			$ 1,367,012
Other comprehensive income (loss)	$ 43	$ (1,323)	(7,656)	$ 65,800
Reclassification from accumulated other comprehensive loss into net income	115	0	82	0
Balance at end of period	1,433,987		1,433,987
Pension and other post-retirement benefits
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	21,825	(10,947)	21,184	(11,390)
Tax benefit	(59)	(84)	(162)	(425)
Reclassification from accumulated other comprehensive loss into net income	313	308	954	751
Balance at end of period	22,138	(10,639)	22,138	(10,639)
Accumulated defined benefit plans adjustment, net prior service attributable to parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Amounts reclassified from accumulated other comprehensive loss	40	32	120	96
Accumulated defined benefit plans adjustment, net gain (loss) attributable to parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Amounts reclassified from accumulated other comprehensive loss	332	360	996	1,080
Foreign currency forward cash flow hedges
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(293)	0	(215)	0
Other comprehensive income (loss)	(5)	0	(50)	0
Reclassification from accumulated other comprehensive loss into net income	115	0	82	0
Balance at end of period	(183)	0	(183)	0
Foreign currency translation
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(71,012)	(63,579)	(62,750)	(130,259)
Other comprehensive income (loss)	(380)	(1,631)	(8,642)	65,049
Balance at end of period	$ (71,392)	$ (65,210)	$ (71,392)	$ (65,210)