Intangible Assets, Net and Certain Cloud Computing Costs - Summary (Details) - USD ($) $ in Thousands			3 Months Ended		9 Months Ended		12 Months Ended
	Jan. 01, 2022	Dec. 31, 2021	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Intangible assets
Gross Value		$ 2,261,768	$ 2,370,592		$ 2,370,592		$ 2,261,768
Accumulated Amortization		(351,490)	(516,329)		(516,329)		(351,490)
Net Carrying Value		1,910,278	1,854,263		1,854,263		$ 1,910,278
Amortization expense for intangible assets			58,200	$ 49,600	$ 171,500	$ 145,300
Weighted Average
Intangible assets
Weighted Average Remaining Useful Life					10 years 8 months 12 days		12 years
Client relationships
Intangible assets
Gross Value		1,465,926	1,451,374		$ 1,451,374		$ 1,465,926
Accumulated Amortization		(199,866)	(267,063)		(267,063)		(199,866)
Net Carrying Value		1,266,060	1,184,311		$ 1,184,311		$ 1,266,060
Client relationships | Minimum
Intangible assets
Useful life					2 years		2 years
Client relationships | Maximum
Intangible assets
Useful life					20 years		20 years
Client relationships | Weighted Average
Intangible assets
Weighted Average Remaining Useful Life					13 years 10 months 24 days		14 years 6 months
Trademarks
Intangible assets
Gross Value		326,392	324,098		$ 324,098		$ 326,392
Accumulated Amortization		(45,555)	(84,385)		(84,385)		(45,555)
Net Carrying Value		$ 280,837	239,713		$ 239,713		$ 280,837
Trademarks | Minimum
Intangible assets
Useful life					2 years		3 years
Trademarks | Maximum
Intangible assets
Useful life					15 years		15 years
Trademarks | Weighted Average
Intangible assets
Weighted Average Remaining Useful Life	7 years 6 months	9 years 6 months			7 years 1 month 6 days		9 years 6 months
Capitalized software development costs
Intangible assets
Gross Value		$ 126,188	252,095		$ 252,095		$ 126,188
Accumulated Amortization		(40,767)	(61,709)		(61,709)		(40,767)
Net Carrying Value		85,421	190,386		$ 190,386		$ 85,421
Capitalized software development costs | Minimum
Intangible assets
Useful life					3 years		3 years
Capitalized software development costs | Maximum
Intangible assets
Useful life					5 years		5 years
Capitalized software development costs | Weighted Average
Intangible assets
Weighted Average Remaining Useful Life					2 years 10 months 24 days		2 years 8 months 12 days
Technology
Intangible assets
Gross Value		343,262	343,025		$ 343,025		$ 343,262
Accumulated Amortization		(65,302)	(103,172)		(103,172)		(65,302)
Net Carrying Value		$ 277,960	$ 239,853		$ 239,853		$ 277,960
Technology | Minimum
Intangible assets
Useful life					5 years		5 years
Technology | Maximum
Intangible assets
Useful life					7 years		7 years
Technology | Weighted Average
Intangible assets
Weighted Average Remaining Useful Life					4 years 9 months 18 days		5 years 7 months 6 days