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Accumulated Other Comprehensive Income/(Loss) - Schedule of Changes in AOCI, Net of Tax (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020
AOCI Attributable to Parent, Net of Tax
Beginning balance	$ 302,110	$ 202,847	$ 181,013	$ 150,820	$ 166,816	$ 186,013
Other comprehensive loss before reclassifications	(13,601)	8,252	(3,890)	(4,787)	(1,425)	(23,976)
Income tax effects before reclassifications	820	175	(679)	178	539	(910)
Amounts reclassified from AOCI	1,197	1,224	1,228	2,272	2,654	2,398
Income tax effects on reclassifications	(390)	(398)	(394)	(919)	(904)	(776)
Currency translation AOCI	478	(264)	1,007	(573)	(279)	420
Ending balance	312,746	302,110	202,847	157,170	150,820	166,816
Accumulated other comprehensive loss
AOCI Attributable to Parent, Net of Tax
Beginning balance	(42,443)	(51,432)	(48,704)	(56,621)	(57,206)	(34,362)
Ending balance	(53,939)	(42,443)	(51,432)	(60,450)	(56,621)	(57,206)
Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax
Beginning balance	(23,921)	(31,638)	(26,543)	(35,723)	(36,353)	(12,282)
Other comprehensive loss before reclassifications	(10,383)	7,195	(4,693)	(3,503)	799	(22,735)
Income tax effects before reclassifications	(325)	522	(402)	(116)	(169)	(1,336)
Amounts reclassified from AOCI	0	0	0	0	0	0
Income tax effects on reclassifications	0	0	0	0	0	0
Currency translation AOCI	0	0	0	0	0	0
Ending balance	(34,629)	(23,921)	(31,638)	(39,342)	(35,723)	(36,353)
Hedging Activities Adjustments
AOCI Attributable to Parent, Net of Tax
Beginning balance	(11,772)	(12,327)	(13,485)	(13,151)	(11,511)	(10,891)
Other comprehensive loss before reclassifications	(3,218)	1,057	803	(1,284)	(2,224)	(1,241)
Income tax effects before reclassifications	1,145	(347)	(277)	294	708	426
Amounts reclassified from AOCI	0	0	0	0	0	0
Income tax effects on reclassifications	0	0	0	0	0	0
Currency translation AOCI	334	(155)	632	(209)	(124)	195
Ending balance	(13,511)	(11,772)	(12,327)	(14,350)	(13,151)	(11,511)
Pension and Other Postretirement Benefit Liability Adjustment
AOCI Attributable to Parent, Net of Tax
Beginning balance	(6,750)	(7,467)	(8,676)	(7,747)	(9,342)	(11,189)
Other comprehensive loss before reclassifications	0	0	0	0	0	0
Income tax effects before reclassifications	0	0	0	0	0	0
Amounts reclassified from AOCI	1,197	1,224	1,228	2,272	2,654	2,398
Income tax effects on reclassifications	(390)	(398)	(394)	(919)	(904)	(776)
Currency translation AOCI	144	(109)	375	(364)	(155)	225
Ending balance	$ (5,799)	$ (6,750)	$ (7,467)	$ (6,758)	$ (7,747)	$ (9,342)

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Reclassification From AOCI, Current Period Foreign Currency Transaction And Translation Adjustment, Net Of Tax

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount before tax and reclassification adjustments of other comprehensive income (loss) attributable to parent.

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Amount of tax expense (benefit) allocated to other comprehensive income (loss) before reclassification adjustment from accumulated other comprehensive income (loss).

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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