Property and Equipment, Net - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2022	Dec. 31, 2021
Property Plant And Equipment [Line Items]
Property and equipment, gross		$ 23,454	$ 23,206
Less accumulated depreciation and amortization		(14,067)	(11,021)
Property and equipment, net		9,387	12,185
Furniture and Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross		$ 2,377	2,530
Property and equipment, useful life in years		5 years
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	[1]	$ 7,046	7,842
Property and equipment, useful life in years	[1]	9 years
Systems Hardware
Property Plant And Equipment [Line Items]
Property and equipment, gross		$ 1,610	1,357
Property and equipment, useful life in years		5 years
Office Computers
Property Plant And Equipment [Line Items]
Property and equipment, gross		$ 9,866	8,783
Property and equipment, useful life in years		3 years
Computer and System Software
Property Plant And Equipment [Line Items]
Property and equipment, gross		$ 2,555	$ 2,694
Property and equipment, useful life in years		3 years

[1] Lesser of the lease term or the estimated useful lives of the improvements, which may be up to 9 years.