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Income taxes (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Income taxes [Abstract]    
Income tax benefit $ (1,262) $ (556)
Effective tax rate 23.90% 20.10%
Unrecognized tax benefits that would favorably affect effective income tax rate if recognized $ 144  
Unrecognized tax benefits that will lapse upon expiration of statute of limitations 28  
Unrecognized tax benefits 144  
Accrued interest and penalties related to uncertain tax positions $ 24