Income taxes - Schedule of Operating Loss Carryforwards (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Operating Loss Carryforwards [Line Items]
Net operating loss carryovers	$ 385,100	$ 352,600
March 25, 2022
Operating Loss Carryforwards [Line Items]
Net operating loss carryovers	306,830	$ 299,743
June 13, 2025
Operating Loss Carryforwards [Line Items]
Net operating loss carryovers	64,332
October 9, 2025
Operating Loss Carryforwards [Line Items]
Net operating loss carryovers	$ 7,620