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Stock based compensation - Schedule of Unrecognized Stock-based Compensation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Beginning Balance $ 6,791 $ 7,497 $ 3,213
Grants 669 750 5,580
Forfeitures (3,581)   (39)
Expense (141) (1,456) (1,257)
Ending Balance 3,738 6,791 7,497
Units [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Beginning Balance 3,769 3,893 1,676
Grants 669 750 3,007
Forfeitures (1,790)   (39)
Expense (247) (874) (751)
Ending Balance 2,401 3,769 3,893
Stock Options [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Beginning Balance 3,022 3,604 1,537
Grants     2,573
Forfeitures (1,791)    
Expense 106 (582) (506)
Ending Balance $ 1,337 $ 3,022 $ 3,604