Property and Equipment - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Accumulated depreciation and amortization	$ (99,679)	$ (89,275)
Property and equipment, net	41,302	46,431
Property and equipment, gross
Property, Plant and Equipment [Line Items]
Property and equipment, gross	136,470	130,160
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	25,195	28,789
Website and software development costs
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 88,948	75,573
Website and software development costs | Minimum
Property, Plant and Equipment [Line Items]
Useful Lives (years)	3 years
Website and software development costs | Maximum
Property, Plant and Equipment [Line Items]
Useful Lives (years)	5 years
Computer and office equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 14,032	16,175
Computer and office equipment | Minimum
Property, Plant and Equipment [Line Items]
Useful Lives (years)	3 years
Computer and office equipment | Maximum
Property, Plant and Equipment [Line Items]
Useful Lives (years)	5 years
Software
Property, Plant and Equipment [Line Items]
Useful Lives (years)	3 years
Property and equipment, gross	$ 1,607	1,869
Furniture
Property, Plant and Equipment [Line Items]
Useful Lives (years)	7 years
Property and equipment, gross	$ 6,688	7,754
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 4,511	$ 5,546