Consolidated balance sheet components - Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prepaid expenses	$ 10,358	$ 12,465
Capitalized cloud computing costs, current	829	808
Short term deposits	447	745
Other current assets	2,259	1,909
Prepaid expenses and other current assets	$ 13,893	$ 15,927