Revenue and Related Matters - Schedule of Contract with Customer, Asset and Liability (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Assets:
Fees receivable, gross	$ 1,689,522	$ 1,704,725
Contract assets recorded in Prepaid expenses and other current assets	40,534	31,056
Contract liabilities:
Deferred revenues (current liability)	2,810,056	2,762,927
Non-current deferred revenues recorded in Other liabilities	31,569	27,389
Total contract liabilities	$ 2,841,625	$ 2,790,316