Furniture, Equipment and Leasehold Improvements, Net - Schedule of Furniture, Equipment and Leasehold Improvements (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Furniture, equipment and leasehold improvements [Abstract]
Furniture, equipment and leasehold improvements, gross	$ 929,549	$ 885,197
Less: Accumulated depreciation and amortization	(740,291)	(716,022)
Furniture, equipment and leasehold improvements, net	189,258	169,175
Furniture and equipment
Furniture, equipment and leasehold improvements [Abstract]
Furniture, equipment and leasehold improvements, gross	605,567	584,161
Leasehold improvements
Furniture, equipment and leasehold improvements [Abstract]
Furniture, equipment and leasehold improvements, gross	$ 323,982	$ 301,036