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Segment Reporting - Revenues Based on Location of Legal Entity (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Segment Reporting Information [Line Items]      
Total revenues $ 3,489,242 $ 3,028,908 $ 2,776,222
U.S.      
Segment Reporting Information [Line Items]      
Total revenues 2,209,276 1,922,337 1,708,673
U.K.      
Segment Reporting Information [Line Items]      
Total revenues 471,134 419,197 461,354
All other foreign countries      
Segment Reporting Information [Line Items]      
Total revenues $ 808,832 $ 687,374 $ 606,195