Fixed Assets, Net (Tables)

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

Summary of Components of Fixed Assets, Net

Fixed assets are depreciated over their estimated useful lives as follows:

Leasehold improvements and other fixed assets	shorter of the remaining term of lease or useful life
Software, including software development costs	3-5 years straight-line
Computer and communications equipment	3-5 years straight-line

Fixed assets, net consisted of the following (in thousands):

	December 31, 2023		December 31, 2022
Leasehold improvements, furniture and fixtures, and other fixed assets	$	245,262	$	207,020
Software, including software development costs	56,883		48,112
Computer and communications equipment	37,693		31,586
Total, cost	339,838		286,718
Accumulated depreciation and amortization	(161,803)		(131,079)
Total, net	$	178,035	$	155,639