Fair value measurements - Level 3 Fair Value Inputs In The Black-Scholes Option Pricing Models (Details) - Level 3 - Fair Value, Recurring - Black-Scholes Method - 2024 Warrants	Mar. 31, 2026 Term
Term (in years)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrants, measurement input	3.4
Risk free interest rate
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrants, measurement input	0.038
Volatility
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrants, measurement input	1.11