v3.22.4
Share-based compensation - Weighted average assumptions (Details)
12 Months Ended
Dec. 31, 2021
yr
$ / shares
Disclosure of terms and conditions of share-based payment arrangement [line items]  
Share option award fair value (in dollars per share) | $ / shares $ 5.34
Risk free interest rate 0.73%
Expected lives (years) | yr 6.5
Expected volatility 19.30%
Dividend yield 0.00%