Segment Information (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of operating segments | segment									1
Total revenues	$ 789,509	$ 620,643	$ 688,043	$ 568,507	$ 579,389	$ 551,581	$ 529,932	$ 497,857	$ 2,666,702	$ 2,158,759	$ 1,881,883
Property and equipment, net	559,625				377,567				559,625	377,567
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues									2,600,000	2,100,000	1,800,000
Property and equipment, net	336,900				261,700				336,900	261,700
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues									105,000	90,000	$ 79,900
Property and equipment, net	$ 218,000				$ 109,900				$ 218,000	$ 109,900