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Earnings Per Share (Notes)
 6 Months Ended
Jun. 30, 2022
Earnings Per Share [Abstract]  
Earnings per share
The following table shows the calculation of basic and diluted earnings per share (in millions, except per share data).
Three Months EndedSix Months Ended
June 30,June 30,
2022202120222021
Income from continuing operations$72.6 $57.3 $140.2 $100.1 
Income (loss) from discontinued operations, net of income taxes(0.1)6.9 (0.9)12.8 
Net income
$72.5 $64.2 $139.3 $112.9 
Weighted-average number of common shares outstanding — basic
51.0 53.2 51.3 53.1 
Dilutive effect of common share equivalents0.6 0.7 0.7 0.7 
Weighted-average number of common shares and share equivalents outstanding — diluted
51.6 53.9 52.0 53.8 
Basic earnings per share:
Continuing operations$1.42 $1.08 $2.73 $1.89 
Discontinued operations— 0.13 (0.01)0.24 
$1.42 $1.21 $2.72 $2.13 
Diluted earnings per share:
Continuing operations$1.41 $1.06 $2.70 $1.86 
Discontinued operations— 0.13 (0.01)0.24 
$1.41 $1.19 $2.69 $2.10