Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		$ 1,053,324	$ 999,598
Other comprehensive income (loss) before reclassifications		(3,321)	16,541
Amounts reclassified from OCI		(290)	(240)
Ending balance		1,063,936	1,028,221
Accumulated Other Comprehensive (Loss) Income [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		(172,117)	(200,688)
Ending balance		(175,728)	(184,387)
Cash Flow Hedges [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	[1]	997	(599)
Other comprehensive income (loss) before reclassifications	[1]	702	1,700
Amounts reclassified from OCI	[1]	(222)	(118)
Ending balance	[1]	1,477	983
Pension Items [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	[1]	(2,079)	(1,792)
Other comprehensive income (loss) before reclassifications	[1]	0	0
Amounts reclassified from OCI	[1]	(68)	(122)
Ending balance	[1]	(2,147)	(1,914)
Foreign Currency Items [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		(171,035)	(198,297)
Other comprehensive income (loss) before reclassifications		(4,023)	14,841
Amounts reclassified from OCI		0	0
Ending balance		$ (175,058)	$ (183,456)

[1] Cash Flow Hedges and Pension Items are net of tax.