Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Beginning Balance	$ 952,404	$ 946,685
Goodwill, Acquired During Period	0	17,931
Goodwill, Purchase Accounting Adjustments	0	741
Goodwill, Foreign Currency Translation Gain (Loss)	(31,037)	(12,953)
Ending balance	$ 921,367	$ 952,404