Accrued expenses and other current liabilities - Components of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Payables and Accruals [Abstract]
Accrued expenses	$ 7,326	$ 6,796
Indirect tax reserves	18,392	26,645
Indirect tax payables	10,786	11,365
Deferred rent, current	803	597
Other current liabilities	2,833	1,375
Total accrued expenses and other current liabilities	$ 40,140	$ 46,778