Accumulated Other Comprehensive Loss, Net of Tax (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 1,017,253
Other comprehensive (loss) income before reclassifications	(11,869)
Amounts reclassified from accumulated other comprehensive loss, net of tax	9,856
Tax expense	(4,170)
Ending balance	1,174,678
Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(43,906)
Other comprehensive (loss) income before reclassifications	(16,810)
Amounts reclassified from accumulated other comprehensive loss, net of tax	0
Tax expense	0
Ending balance	(60,716)
Gains (Losses) on Derivative Instruments | Foreign Exchange Derivative Instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(4,471)
Other comprehensive (loss) income before reclassifications	4,908
Amounts reclassified from accumulated other comprehensive loss, net of tax	3,391
Tax expense	(2,497)
Ending balance	1,331
Gains (Losses) on Derivative Instruments | Interest Rate Swap Derivative Instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1,179)
Other comprehensive (loss) income before reclassifications	(8)
Amounts reclassified from accumulated other comprehensive loss, net of tax	1,569
Tax expense	(382)
Ending balance	0
Pension and Other Postretirement
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(46,626)
Other comprehensive (loss) income before reclassifications	41
Amounts reclassified from accumulated other comprehensive loss, net of tax	4,896
Tax expense	(1,291)
Ending balance	(42,980)
Accumulated Other Comprehensive Loss, Net of Tax
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(96,182)
Ending balance	$ (102,365)