Segment Information - Revenue by Geographic Location (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 1,413,265	$ 949,828	$ 941,293	$ 858,435	$ 870,106	$ 784,535	$ 752,157	$ 640,799	$ 4,162,821	$ 3,047,597	$ 2,488,652
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									3,062,555	2,365,079	1,986,786
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									885,762	543,179	420,317
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									214,504	139,339	81,549
Total revenues outside of the United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 1,100,266	$ 682,518	$ 501,866