Goodwill - Schedule of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Goodwill beginning balance	$ 1,103,907	$ 1,116,533
Goodwill acquired		(5,978)
Effect of change in exchange rates	31,009	(6,648)
Goodwill ending balance	1,131,916	$ 1,103,907
Goodwill, Written off Related to Sale of Business Unit	$ 3,000