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Income taxes - Schedule of Unrecognized Tax Benefits (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Income Tax Disclosure [Abstract]    
Balance at Beginning Balance $ (11,339) $ (5,615)
Tax positions related to the current year, Additions (762) (670)
Tax positions related to the current year, Reductions 0 0
Tax positions related to the prior year, Additions 0 (5,054)
Tax positions related to the prior year, Reductions 0 0
Tax positions related to the prior year, Settlements 0 0
Tax positions related to the prior year, Lapses in statute   0
Balance at Ending Balance $ (12,101) $ (11,339)