Goodwill and Other Intangibles - Other Intangibles (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross Asset Value, Beginning of Period	$ 565,418
Reclass to Assets Held for Sale	(1,473)
Foreign currency translation adjustments and other	(14,136)
Gross Asset Value, End of Period	549,809
Accumulated Amortization, Beginning of Period	(216,313)
Amortization	(19,111)
Reclass to Assets Held for Sale	1,457
Foreign currency translation adjustments and other	5,139
Accumulated Amortization, End of Period	(228,828)
Net Book Value	320,981	$ 349,105
Customer lists and relationships
Finite-Lived Intangible Assets [Line Items]
Gross Asset Value, Beginning of Period	448,748
Reclass to Assets Held for Sale	0
Foreign currency translation adjustments and other	(12,075)
Gross Asset Value, End of Period	436,673
Accumulated Amortization, Beginning of Period	(147,286)
Amortization	(17,342)
Reclass to Assets Held for Sale	0
Foreign currency translation adjustments and other	4,023
Accumulated Amortization, End of Period	(160,605)
Net Book Value	276,068	301,462
Trade names and trademarks
Finite-Lived Intangible Assets [Line Items]
Gross Asset Value, Beginning of Period	18,710
Reclass to Assets Held for Sale	0
Foreign currency translation adjustments and other	(484)
Gross Asset Value, End of Period	18,226
Accumulated Amortization, Beginning of Period	(8,176)
Amortization	0
Reclass to Assets Held for Sale	0
Foreign currency translation adjustments and other	111
Accumulated Amortization, End of Period	(8,065)
Net Book Value	10,161	10,534
Patents and technology
Finite-Lived Intangible Assets [Line Items]
Gross Asset Value, Beginning of Period	58,096
Reclass to Assets Held for Sale	0
Foreign currency translation adjustments and other	(507)
Gross Asset Value, End of Period	57,589
Accumulated Amortization, Beginning of Period	(39,500)
Amortization	(1,095)
Reclass to Assets Held for Sale	0
Foreign currency translation adjustments and other	685
Accumulated Amortization, End of Period	(39,910)
Net Book Value	17,679	18,596
Other
Finite-Lived Intangible Assets [Line Items]
Gross Asset Value, Beginning of Period	39,864
Reclass to Assets Held for Sale	(1,473)
Foreign currency translation adjustments and other	(1,070)
Gross Asset Value, End of Period	37,321
Accumulated Amortization, Beginning of Period	(21,351)
Amortization	(674)
Reclass to Assets Held for Sale	1,457
Foreign currency translation adjustments and other	320
Accumulated Amortization, End of Period	(20,248)
Net Book Value	$ 17,073	$ 18,513