Balance Sheet Components - Property and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 23,410		$ 23,410		$ 21,733
Less: accumulated depreciation	(9,242)		(9,242)		(6,787)
Total property and equipment, net	14,168		14,168		14,946
Depreciation expense	1,600	$ 1,100	3,100	$ 2,100
Computer equipment, furniture, and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment	15,273		15,273		14,136
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	7,636		7,636		7,597
Construction-in-progress
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 501		$ 501		$ 0