Consolidated balance sheet components - Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prepaid expenses	$ 11,735	$ 12,465
Capitalized cloud computing costs, current	735	808
Short term deposits	340	745
Other current assets	2,469	1,909
Prepaid expenses and other current assets	$ 15,279	$ 15,927

Capitalized Computer Costs, Current

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