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Net income per ordinary share
 3 Months Ended
Mar. 31, 2022
Earnings Per Share [Abstract]  
Net income per ordinary share Net income per ordinary share
Basic net income per ordinary share attributable to the Group has been computed by dividing net income available to ordinary shareholders by the weighted average number of ordinary shares outstanding during the period. Diluted net income per ordinary share is computed by adjusting the weighted average number of ordinary shares outstanding during the period for all potentially dilutive ordinary shares outstanding during the period and adjusting net income for any changes in income or loss that would result from the conversion of such potential ordinary shares. There is no difference in net income used for basic and diluted net income per ordinary share.

The reconciliation of the number of shares used in the computation of basic and diluted net income per ordinary share is as follows:
Three Months Ended
March 31, 2022March 31, 2021
Weighted average number of ordinary shares outstanding for basic net income per ordinary share81,463,303 52,811,460 
Effect of dilutive share options and other awards outstanding under share based compensation programs1,149,795 498,993 
Weighted average number of ordinary shares outstanding for diluted net income per ordinary share82,613,098 53,310,453 

Three Months Ended
March 31, 2022March 31, 2021
Net income per Ordinary Share attributable to the Group:
Basic$1.37 $1.84 
Diluted$1.36 $1.82