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Net Income per Common Share (Tables)
 9 Months Ended
Sep. 30, 2016
Earnings Per Share [Abstract]  
Summary of Earnings Per Share Basic and Diluted

 

 

 

Quarter Ended September 30,

 

 

Nine Months Ended September 30,

 

(In millions, except per share data)

 

2016

 

 

2015

 

 

2016

 

 

2015

 

Basic net income per common share:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Net income

 

$

68.2

 

 

$

53.5

 

 

$

190.3

 

 

$

183.3

 

Weighted average common shares outstanding

 

 

92.7

 

 

 

95.8

 

 

 

93.1

 

 

 

96.2

 

Basic net income per common share

 

$

0.74

 

 

$

0.56

 

 

$

2.04

 

 

$

1.91

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Diluted net income per common share:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Net income

 

$

68.2

 

 

$

53.5

 

 

$

190.3

 

 

$

183.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted average common shares outstanding — Basic

 

 

92.7

 

 

 

95.8

 

 

 

93.1

 

 

 

96.2

 

Plus incremental shares from assumed conversions:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Restricted stock units

 

 

0.4

 

 

 

0.5

 

 

 

0.5

 

 

 

0.5

 

Stock options

 

 

1.0

 

 

 

1.0

 

 

 

1.0

 

 

 

1.0

 

Weighted average common shares outstanding — Dilutive

 

 

94.1

 

 

 

97.3

 

 

 

94.6

 

 

 

97.7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dilutive net income per common share

 

$

0.72

 

 

$

0.55

 

 

$

2.01

 

 

$

1.88