Related Party Transactions - Loans, Forgivable Loans and Other Receivables from Employees and Partners, Net (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Related Party Transaction [Line Items]
Loans, forgivable loans and other receivables from employees and partners, net	$ 348,484		$ 348,484		$ 319,612
Related Party
Related Party Transaction [Line Items]
Loans, forgivable loans and other receivables from employees and partners, net	348,500		348,500		$ 319,600
Compensation expense related to employee loans	10,200	$ 10,700	35,600	$ 35,100
Interest income	$ 2,000	$ 1,700	$ 5,900	$ 5,200

Amount of operating interest income, including, but not limited to, amortization and accretion of premiums and discounts on securities.

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