Leases - Leases included in the Condensed Consolidated Statement of Financial Condition (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Right-of-use assets	Right-of-use assets
Operating lease right-of-use assets	$ 312,588	$ 360,092
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Lease liabilities	Lease liabilities
Operating lease liabilities	$ 357,623	$ 415,539
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Right-of-use assets	Right-of-use assets
Property and equipment, gross	$ 18,975	$ 18,116
Amortization of right-of-use assets	(7,797)	(6,310)
Property and equipment, net	$ 11,178	$ 11,806
Finance Lease, Liability, Statement of Financial Position [Extensible List]	Lease liabilities	Lease liabilities
Finance lease liabilities	$ 11,394	$ 11,940