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Earnings Per Share
6 Months Ended
Jun. 30, 2021
Earnings Per Share [Abstract]  
Earnings Per Share
Note 7 - Earnings Per Share

The following table sets forth the reconciliation of the numerator and the denominator of basic earnings per share and diluted earnings per share for the three and six months ended June 30, 2021 and 2020, respectively:
Three Months Ended
June 30,
Six Months Ended
June 30,
2021202020212020
Numerator:
Net income attributable to The Timken Company$104.8 $61.9 $218.1 $142.6 
Less: undistributed earnings allocated to nonvested stock —  — 
Net income available to common shareholders for basic and diluted earnings per share$104.8 $61.9 $218.1 $142.6 
Denominator:
Weighted average number of shares outstanding - basic76,122,257 75,078,207 75,969,569 75,298,356 
Effect of dilutive securities:
Stock options and awards - based on the treasury stock method1,131,900 620,082 1,288,192 733,693 
Weighted average number of shares outstanding assuming dilution of stock options and awards77,254,157 75,698,289 77,257,761 76,032,049 
Basic earnings per share$1.38 $0.82 $2.87 $1.89 
Diluted earnings per share $1.36 $0.82 $2.82 $1.88 
The exercise prices for certain stock options that the Company has awarded exceeded the average market price of the Company’s common shares during certain periods presented. Such stock options are antidilutive and were not included in the computation of diluted earnings per share. The antidilutive stock options outstanding during the three months ended June 30, 2021 and 2020 were zero and 1,338,686, respectively. The antidilutive stock options outstanding during the six months ended June 30, 2021 and 2020 were zero and 1,353,254, respectively.