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Income taxes (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Income Tax Disclosure [Abstract]        
Income tax provision (benefit) $ 0 $ 1,003,000 $ 0 $ 1,003,000
Effective income tax rate reconciliation, percent       (1.00%)