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Earnings (Loss) per Share (Tables)
 12 Months Ended
Dec. 31, 2022
Earnings Per Share [Abstract]  
Reconciliation of Numerator and Denominator of Basic and Diluted Earnings per Share Calculation and Anti-dilutive Share-based Awards

The reconciliation of the numerator and denominator of the basic and diluted earnings (loss) per share calculation and the anti-dilutive share-based awards for the years ended December 31, 2022, 2021 and 2020, were as follows:

 

 

Year Ended December 31,

 

 

 

2022

 

 

2021

 

 

2020

 

Net earnings (loss) per share:

 

 

 

 

 

 

 

 

 

Basic

 

$

3.33

 

 

$

4.36

 

 

$

(0.76

)

Diluted

 

 

3.17

 

 

 

4.14

 

 

 

(0.76

)

Numerator:

 

 

 

 

 

 

 

 

 

Net earnings (loss)

 

$

102.5

 

 

$

145.9

 

 

$

(25.9

)

Denominator:

 

 

 

 

 

 

 

 

 

Weighted average number of common shares outstanding

 

 

30.8

 

 

 

33.5

 

 

 

33.9

 

Dilutive awards

 

 

1.5

 

 

 

1.7

 

 

 

—

 

Diluted weighted average number of common shares outstanding

 

 

32.3

 

 

 

35.2

 

 

 

33.9

 

 

 

 

 

 

 

 

 

 

 

Weighted average number of anti-dilutive share-based awards:

 

 

 

 

 

 

 

 

 

Restricted stock units

 

 

—

 

 

 

—

 

 

 

0.4

 

Stock options

 

 

—

 

 

 

—

 

 

 

0.8

 

Total

 

 

—

 

 

 

—

 

 

 

1.2