Balance Sheet Components - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Finance lease right-of-use assets	$ 5,226
Total property and equipment	17,120	$ 8,133
Accumulated depreciation and amortization	(7,132)	(2,841)
Property and equipment, net	9,988	5,292
Capitalized internal-use software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	6,569	6,167
Computer equipment and servers
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,267	631
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	400	184
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	114	114
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2,544	$ 1,037

Amount, before accumulated amortization, of right-of-use asset from finance lease.

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