Other Balance Sheet Details - Property and Equipment, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property and equipment	$ 11,365	$ 11,530
Less accumulated depreciation	(4,168)	(2,806)
Property and equipment, net	7,197	8,724
Depreciation	1,600	1,500	$ 1,300
Computer equipment and software
Property, Plant and Equipment [Line Items]
Property and equipment	233	429
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment	9,998	9,835
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment	$ 1,134	$ 1,266