Property and Equipment, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Property and equipment, cost	$ 644,900	$ 648,385
Accumulated depreciation	(536,296)	(538,698)
Property and equipment, net	108,604	109,687
Computer hardware
Property, Plant and Equipment [Line Items]
Property and equipment, cost	149,218	160,028
Computer software
Property, Plant and Equipment [Line Items]
Property and equipment, cost	216,075	219,863
Furniture and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, cost	98,000	96,601
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, cost	$ 181,607	$ 171,893