v3.23.1
Fair value measurement - Monte Carlo Simulation (Details) - AbX Biologics, Inc.
Sep. 30, 2022
Dec. 01, 2021
Stock price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Business combination, contingent consideration 35.24 87.06
Equity volatility    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Business combination, contingent consideration 0.937 0.813
Risk-free interest rate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Business combination, contingent consideration 0.039 0.004
Revenue volatility    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Business combination, contingent consideration 0.302 0.219