Balance Sheets Components - Schedule of Intangible Assets Net (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Finite Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 19,872	$ 21,137
Accumulated amortization	(15,479)	(15,160)
Intangible assets, net	4,393	5,977
Internal use software
Finite Lived Intangible Assets [Line Items]
Intangible assets, gross	9,434	9,434
Accumulated amortization	(8,633)	(8,633)
Intangible assets, net	801	801
Purchased intangibles
Finite Lived Intangible Assets [Line Items]
Intangible assets, gross	10,438	11,703
Accumulated amortization	(6,846)	(6,527)
Intangible assets, net	$ 3,592	$ 5,176