Components of Accumulated Other Comprehensive Loss - Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	$ 16,692		$ 15,643		$ 31,784	$ 31,899
Income from continuing operations before income taxes	(108,606)		15,105		(113,428)	17,190
Income tax expense (benefit)	(3,115)		4,797		(1,894)	6,898
Net income (loss)	(104,496)	$ (38,680)	15,080	$ 1,565	(143,176)	16,645
Amount Reclassified from Accumulated Other Comprehensive Loss | Cumulative Unrecognized Actuarial Losses on Pension Obligations
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Income from continuing operations before income taxes	4,609		6,136		9,456	12,211
Income tax expense (benefit)	(312)		(358)		(625)	(716)
Net income (loss)	4,297		5,778		8,831	11,495
Amount Reclassified from Accumulated Other Comprehensive Loss | Effective Portion of Deriviatives Designated as Hedging Instruments
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Income from continuing operations before income taxes	63		865		525	1,680
Income tax expense (benefit)	(233)		(253)		(357)	(498)
Net income (loss)	(170)		612		168	1,182
Amount Reclassified from Accumulated Other Comprehensive Loss | Effective Portion of Deriviatives Designated as Hedging Instruments | Foreign currency exchange forward contracts
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Income (loss) from discontinued operations	(998)		3		(1,586)	(47)
Amount Reclassified from Accumulated Other Comprehensive Loss | Effective Portion of Deriviatives Designated as Hedging Instruments | Interest rate swaps
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	1,061		862		2,111	1,727
Amount Reclassified from Accumulated Other Comprehensive Loss | Actuarial losses
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Defined benefit pension income	4,496		6,007		9,223	11,955
Amount Reclassified from Accumulated Other Comprehensive Loss | Prior service costs
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Defined benefit pension income	$ 113		$ 129		$ 233	$ 256