Revenue and Related Matters - Schedule of Contract with Customer, Asset and Liability (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Assets:
Fees receivable, gross	$ 1,125,487		$ 1,125,487		$ 1,704,725
Contract assets recorded in Prepaid expenses and other current assets	57,565		57,565		31,056
Contract liabilities:
Deferred revenues (current liability)	2,531,532		2,531,532		2,762,927
Non-current deferred revenues recorded in Other liabilities	22,645		22,645		27,389
Total contract liabilities	2,554,177		2,554,177		$ 2,790,316
Revenue recognized previously attributable to deferred revenues	$ 1,100,000	$ 1,100,000	$ 2,200,000	$ 2,100,000