Property and Equipment, Net - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 31,083	$ 35,842
Less: accumulated depreciation and amortization	(10,045)	(18,896)
Property and equipment, net	21,038	16,946
Software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 198	920
Software | Minimum
Property, Plant and Equipment [Line Items]
Useful life (in years)	2 years
Software | Maximum
Property, Plant and Equipment [Line Items]
Useful life (in years)	5 years
Capitalized software development costs
Property, Plant and Equipment [Line Items]
Useful life (in years)	5 years
Property and equipment, gross	$ 17,895	12,263
Computers and equipment
Property, Plant and Equipment [Line Items]
Useful life (in years)	3 years
Property and equipment, gross	$ 2,336	6,359
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Useful life (in years)	5 years
Property and equipment, gross	$ 426	3,988
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 10,228	$ 12,312
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Useful life (in years)	3 years
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Useful life (in years)	10 years