Balance Sheet Components - Schedule of Property, Equipment and Software, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property, equipment and software, gross	$ 126,007	$ 89,147
Less: accumulated depreciation and amortization	(74,080)	(59,103)
Property, equipment and software - net	51,927	30,044
Internal-use software
Property, Plant and Equipment [Line Items]
Property, equipment and software, gross	31,674	24,513
Network hardware, computer equipment and software
Property, Plant and Equipment [Line Items]
Property, equipment and software, gross	91,615	62,764
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, equipment and software, gross	2,098	1,249
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, equipment and software, gross	$ 620	$ 621

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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