Balance Sheet Components - Property Plant and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Total property, equipment, and software	$ 32,180	$ 13,724
Accumulated depreciation and amortization	(7,921)	(3,692)
Total property, equipment, and software, net	24,259	10,032
Depreciation and amortization	7,541	2,278	$ 774
Capitalized internally developed software balances, net of accumulated amortization	13,500	6,000
Internally developed software
Property, Plant and Equipment [Line Items]
Total property, equipment, and software	17,735	7,906
Computer and networking equipment
Property, Plant and Equipment [Line Items]
Total property, equipment, and software	3,796	1,285
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property, equipment, and software	3,199	1,770
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property, equipment, and software	7,450	2,763
Property, Equipment, And Software
Property, Plant and Equipment [Line Items]
Depreciation and amortization	$ 4,200	$ 2,300