CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 18,221	$ 27,154	$ 70,310	$ 81,066
Other comprehensive income/(loss), before tax:
Foreign currency translation	16,211	(15,131)	(12,757)	(4,509)
Amortization of pension liability adjustments:
Prior service credit	(37)	(1,031)	(113)	(3,092)
Net actuarial loss	176	349	530	1,042
Payments and amortization related to interest rate swaps included in earnings	(2,675)	(3,990)	(10,893)	(10,891)
Derivative valuation adjustment	(1,238)	996	395	4,533
Income taxes related to items of other comprehensive income/(loss):
Amortization of prior service credit	13	315	35	946
Amortization of net actuarial loss	(55)	(107)	(162)	(319)
Payments and amortization related to interest rate swaps included in earnings	658	1,009	2,681	2,755
Derivative valuation adjustment	305	(252)	(97)	(1,147)
Comprehensive income	31,579	9,312	49,929	70,384
Comprehensive income attributable to the noncontrolling interest	(127)	(99)	(273)	669
Comprehensive income attributable to the Company	$ 31,706	$ 9,411	$ 50,202	$ 69,715