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Related Party Transactions - Loans, Forgivable Loans and Other Receivables from Employees and Partners (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Related Party Transaction
Loans, forgivable loans and other receivables from employees and partners, net	$ 788,233		$ 788,233		$ 651,197
Labor and related expense	441,026	$ 400,798	1,223,672	$ 1,131,336
Related Party
Related Party Transaction
Loans, forgivable loans and other receivables from employees and partners, net	788,200		788,200		$ 651,200
Related Party \| Employee Loans, Compensation Expense
Related Party Transaction
Labor and related expense	$ 23,500	$ 28,300	$ 72,700	$ 78,700