Goodwill Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Goodwill Roll Forward
Goodwill, Beginning Balance	$ 631,212	$ 607,205
Goodwill Additions	8,802	3,345
Goodwill, Translation Adjustments	(8,820)	20,662
Goodwill, Ending Balance	631,194	631,212
Global Specialty Businesses [Member]
Goodwill Roll Forward
Goodwill Period Increase Decrease		500
Americas [Member]
Goodwill Roll Forward
Goodwill Period Increase Decrease		2,600
EMEA [Member]
Goodwill Roll Forward
Goodwill Period Increase Decrease		1,400
Asia Pacific [Member]
Goodwill Roll Forward
Goodwill Period Increase Decrease		8,000
Operating Segments [Member] | Global Specialty Businesses [Member]
Goodwill Roll Forward
Goodwill, Beginning Balance	119,718	116,075
Goodwill Additions	2,624	1,329
Goodwill, Translation Adjustments	(3,149)	2,314
Goodwill, Ending Balance	119,193	119,718
Operating Segments [Member] | Americas [Member]
Goodwill Roll Forward
Goodwill, Beginning Balance	213,242	216,385
Goodwill Additions	1,490	1,485
Goodwill, Translation Adjustments	(709)	(4,628)
Goodwill, Ending Balance	214,023	213,242
Operating Segments [Member] | EMEA [Member]
Goodwill Roll Forward
Goodwill, Beginning Balance	140,162	133,018
Goodwill Additions	3,380	531
Goodwill, Translation Adjustments	(8,022)	6,613
Goodwill, Ending Balance	135,520	140,162
Operating Segments [Member] | Asia Pacific [Member]
Goodwill Roll Forward
Goodwill, Beginning Balance	158,090	141,727
Goodwill Additions	1,308	0
Goodwill, Translation Adjustments	3,060	16,363
Goodwill, Ending Balance	$ 162,458	$ 158,090