Accrued expenses and other current liabilities - Narrative (Details) - Historical Tax Withholding Possible Loss - USD ($) $ in Thousands	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Loss Contingencies [Line Items]
Loss contingency accrual	$ 15,850	$ 15,693	$ 17,036	$ 22,534	$ 22,334	$ 22,166
Estimate of possible loss	$ 15,900