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Net Income Per Common Share (Tables)
 12 Months Ended
Dec. 31, 2022
Earnings Per Share [Abstract]  
Summary of Earnings Per Share Basic and Diluted

Computations of basic and diluted net income per common share for the years ended December 31, 2022, 2021 and 2020, are as follows:

 

(In millions, except per share data)

 

2022

 

 

2021

 

 

2020

 

Basic net income per common share:

 

 

 

 

 

 

 

 

 

Net income

 

$

126.3

 

 

$

16.1

 

 

$

31.7

 

Weighted average common shares outstanding

 

 

84.4

 

 

 

84.1

 

 

 

83.8

 

Basic net income per common share

 

$

1.50

 

 

$

0.19

 

 

$

0.38

 

 

 

 

 

 

 

 

 

 

 

Diluted net income per common share:

 

 

 

 

 

 

 

 

 

Weighted average common shares outstanding — Basic

 

 

84.4

 

 

 

84.1

 

 

 

83.8

 

Plus incremental shares from assumed conversions:

 

 

 

 

 

 

 

 

 

Restricted stock units

 

 

0.4

 

 

 

0.3

 

 

 

0.1

 

Stock options

 

 

0.2

 

 

 

0.2

 

 

 

0.1

 

Weighted average common shares outstanding — Dilutive

 

 

85.0

 

 

 

84.6

 

 

 

84.0

 

Dilutive net income per common share

 

$

1.49

 

 

$

0.19

 

 

$

0.38

 

 

 

 

 

 

 

 

 

 

 

Anti-dilutive shares outstanding, excluded from computation

 

 

0.8

 

 

 

0.6

 

 

 

0.9