v3.26.1
Loss per share - Narrative (Details) - shares
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Earnings Per Share [Abstract]      
Securities called by warrant (in shares) 27,743,685   23,897,532
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities (in shares) 31,969,493 18,575,065