Segments and Related Information - Foreign Operations and Other - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Segments and Related Information [Line Items]
Revenue	$ 2,961,086	$ 2,874,115	$ 5,647,935	$ 5,458,774
Property and equipment, net	$ 1,514,660		$ 1,514,660		$ 1,651,462
Govermment | Revenue Benchmark | Customer Concentration Risk
Segments and Related Information [Line Items]
Concentration risk, percentage of total	14.00%	12.00%	13.00%	10.00%
Foreign Operations
Segments and Related Information [Line Items]
Revenue	$ 24,200	$ 22,100	$ 50,900	$ 49,600
Property and equipment, net	15,500		15,500		17,500
Intangible assets and goodwill, net	$ 29,900		$ 29,900		$ 32,600