Revenue and Related Matters - Schedule of Contract with Customer, Asset and Liability (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Assets:
Fees receivable, gross	$ 1,279,792		$ 1,279,792		$ 1,565,786
Contract assets recorded in Prepaid expenses and other current assets	33,198		33,198		21,183
Contract liabilities:
Deferred revenues (current liability)	2,499,379		2,499,379		2,443,762
Non-current deferred revenues recorded in Other liabilities	30,929		30,929		39,115
Total contract liabilities	2,530,308		2,530,308		$ 2,482,877
Revenue recognized previously attributable to deferred revenues	$ 1,200,000	$ 1,000,000	$ 1,600,000	$ 1,400,000