Segments and Related Information - Foreign Operations and Other - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Segments and Related Information [Line Items]
Revenue	$ 3,252,427	$ 3,257,077	$ 8,900,362	$ 8,715,851
Property and equipment, net	$ 1,519,378		$ 1,519,378		$ 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%	11.00%
Foreign Operations
Segments and Related Information [Line Items]
Revenue	$ 20,000	$ 18,800	$ 70,900	$ 68,400
Property and equipment, net	14,700		14,700		17,500
Intangible assets and goodwill, net	$ 29,300		$ 29,300		$ 32,600