Property and Equipment, Net - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Property, Plant, and Equipment [Line Items]
Total property and equipment	$ 87,988	$ 75,853
Less: accumulated depreciation and amortization	(44,427)	(40,158)
Total property and equipment, net	43,561	35,695
Leasehold improvements
Property, Plant, and Equipment [Line Items]
Total property and equipment	53,266	38,420
Computer equipment
Property, Plant, and Equipment [Line Items]
Total property and equipment	19,598	18,996
Furniture and fixtures
Property, Plant, and Equipment [Line Items]
Total property and equipment	10,097	9,493
Computer software
Property, Plant, and Equipment [Line Items]
Total property and equipment	3,188	3,177
Office equipment
Property, Plant, and Equipment [Line Items]
Total property and equipment	1,247	1,060
Assets under construction
Property, Plant, and Equipment [Line Items]
Total property and equipment	$ 592	$ 4,707