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Earnings Per Share (Tables)
9 Months Ended
Sep. 30, 2020
Earnings Per Share [Abstract]  
Computations of basic and diluted loss per share for loss from continuing operations
The computations of basic and diluted earnings per share for Income from continuing operations were as follows (in millions, except per share data):
 For the Three Months Ended September 30,For the Nine Months Ended September 30,
 2020201920202019
Net income $131.7 $114.7 $244.6 $294.7 
Exclude: Loss from discontinued operations— — 0.3 0.3 
Income from continuing operations$131.7 $114.7 $244.9 $295.0 
Weighted-average shares outstanding – basic38.3 38.6 38.3 39.1 
Add: Potential effect of dilutive securities attributable to stock-based payments0.3 0.4 0.3 0.4 
Weighted-average shares outstanding – diluted38.6 39.0 38.6 39.5 
Earnings per share – Basic:
Income from continuing operations$3.44 $2.97 $6.39 $7.54 
Loss from discontinued operations— — (0.01)(0.01)
Net income $3.44 $2.97 $6.38 $7.53 
Earnings per share – Diluted:
Income from continuing operations$3.42 $2.94 $6.35 $7.46 
Loss from discontinued operations— — (0.01)— 
Net income $3.42 $2.94 $6.34 $7.46 
Stock appreciation rights were outstanding, but not included in the diluted loss per share calculation
The following stock appreciation rights and restricted stock units were outstanding but not included in the diluted earnings per share calculation because the assumed exercise of such rights would have been anti-dilutive (in millions, except for per share data):
 For the Three Months Ended September 30,For the Nine Months Ended September 30,
 2020201920202019
Weighted-average number of shares0.1 — 0.1 — 
Price per share
$257.08
$— 
$257.08
$—