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Balance sheet components - Accrued and Other Current Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Balance Sheet Related Disclosures [Abstract]    
Employee-related $ 16,413 $ 14,956
Transition services agreement payable 0 823
Operating lease liabilities, current 2,443 2,356
Income and other taxes payable 2,814 2,703
Accrued warranty 966 977
Other accrued expenses 10,712 8,193
Accrued and other current liabilities $ 33,348 $ 30,008