Leases - Leases included in the Condensed Consolidated Statement of Financial Condition (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
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	$ 414,105	$ 416,007
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Lease liabilities	Lease liabilities
Operating lease liabilities	$ 482,781	$ 503,174
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Right-of-use assets	Right-of-use assets
Property and equipment, gross	$ 10,947	$ 5,167
Amortization of right-of-use assets	(3,072)	(2,719)
Property and equipment, net	$ 7,875	$ 2,448
Finance Lease, Liability, Statement of Financial Position [Extensible List]	Lease liabilities	Lease liabilities
Finance lease liabilities	$ 7,954	$ 2,375