Segment Information - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) segment	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			2
Revenues	$ 879,356	$ 979,459	$ 1,754,053	$ 1,950,452
Property and equipment, net	110,617		110,617		$ 121,027
United States
Segment Reporting Information [Line Items]
Revenues	656,200	$ 737,400	1,300,000	$ 1,500,000
Property and equipment, net	$ 100,500		$ 100,500		$ 109,600