Revenue and Related Matters - Schedule of Contract with Customer, Asset and Liability (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Assets:
Fees receivable, gross	$ 1,416,496		$ 1,689,522
Contract assets recorded in Prepaid expenses and other current assets	45,748		40,534
Contract liabilities:
Deferred revenues (current liability)	3,018,870		2,810,056
Non-current deferred revenues recorded in Other liabilities	31,846		31,569
Total contract liabilities	3,050,716		$ 2,841,625
Revenue recognized previously attributable to deferred revenues	$ 1,100,000	$ 1,000,000