Goodwill And Intangible Assets, Net Schedule of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Goodwill [Roll Forward]
Balance at beginning of period	$ 444,507	$ 489,293	$ 480,794	$ 464,116
Acquisition	0	467	0	18,831
Foreign currency translation adjustment	11,801	(24,188)	(24,486)	(17,375)
Net change in goodwill	11,801	(23,721)	(24,486)	1,456
Balance at end of period	$ 456,308	$ 465,572	$ 456,308	$ 465,572