Segment Operating Results - Revenues Derived From Clients by Geographical Areas (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Net Revenues	$ 2,344,703	$ 2,786,276	$ 3,270,303
United States [Member]
Segment Reporting Information [Line Items]
Net Revenues	1,719,337	1,989,387	2,553,806
Europe And Other [Member]
Segment Reporting Information [Line Items]
Net Revenues	609,723	787,658	710,660
Latin America [Member]
Segment Reporting Information [Line Items]
Net Revenues	$ 15,643	$ 9,231	$ 5,837