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Earnings Per Share
 9 Months Ended
Sep. 30, 2022
Earnings Per Share [Abstract]  
Earnings Per Share Earnings Per Share
Basic earnings per share (“EPS”) is computed by dividing Net income attributable to Orion by the weighted average number of common stock outstanding during the period. Diluted EPS equals Net income attributable to Orion divided by the weighted average number of common stock outstanding during the period, adjusted for the dilutive effect of our stock–based and other equity compensation awards.
The following table reflects the income and share data used in the basic and diluted EPS computations:
Three Months Ended September 30,Nine Months Ended September 30,
2022202120222021
(In millions, except share and per share amounts)
Net income attributable to ordinary equity holders$31.8 $21.0 $94.0 $133.6 
Weighted average number of ordinary shares (in thousands)60,936 60,740 60,899 60,680 
Basic EPS$0.52 $0.35 $1.54 $2.20 
Dilutive effect of share based payments (in thousands)279 100 415 76 
Weighted average number of diluted ordinary shares (in thousands)61,215 60,840 61,314 60,756 
Diluted EPS$0.52 $0.35 $1.53 $2.20