Fair value measurements - Quantitative Information (Details)	Mar. 31, 2022	Dec. 31, 2021	Feb. 07, 2021
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected term (in years)			5 years
Level 3 | Expected dividend yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0	0
Level 3 | Risk-free interest rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.024	0.012
Level 3 | Expected volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	2.420	1.325
Level 3 | Expected term (in years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected term (in years)	4 years 4 months 24 days	4 years 6 months