Consolidated Other Balance Sheet Components - Internal-Use Software, Property and Equipment, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Public Utility, Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 10,476	$ 10,484
Less: accumulated depreciation and amortization	(5,284)	(2,485)
Total	5,192	7,999
Depreciation expense	200	200	$ 400
Loss on impairment of long lived assets	599	446	0
Amortization expense on capitalized internal-use software	2,800	1,800	200
Impairment loss on developed software	600	0	0
Capitalized internal-use software
Public Utility, Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	9,000	9,605
Computer equipment
Public Utility, Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	125	66
Furniture and fixtures
Public Utility, Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	485	426
Leasehold improvements
Public Utility, Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	866	387
Leasehold Improvements and Furniture and Fixtures
Public Utility, Property, Plant and Equipment [Line Items]
Loss on impairment of long lived assets	$ 0	$ 200	$ 0