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Earnings (Loss) Per Share (Tables)
 3 Months Ended
Mar. 31, 2021
Earnings Per Share [Abstract]  
Schedule of Basic and Dilutive Earnings (Loss) Per Share Our calculations for basic and dilutive earnings (loss) per share are as follows:

 

 

Three Months

 

(dollars in millions, except per share data; shares and stock units in thousands)

 

2021

 

 

2020

 

Basic and dilutive net income (loss) available to common shareholders

 

$

(63.3

)

 

$

4.3

 

 

 

 

 

 

 

 

 

 

Basic weighted average shares outstanding

 

 

50,358

 

 

 

33,791

 

Effect of dilutive securities:

 

 

 

 

 

 

 

 

Unvested shares and stock units(a)

 

 

—

 

 

 

1,839

 

Dilutive weighted average shares outstanding

 

$

50,358

 

 

$

35,630

 

Basic earnings (loss) per share(b)

 

$

(1.26

)

 

$

0.13

 

Diluted earnings (loss) per share(b)

 

$

(1.26

)

 

$

0.12

 

 

(a)

Includes unvested shares of Common Stock, unvested stock units, and vested stock units for which the underlying Common Stock has not been distributed.

(b)

Earnings (loss) per share is based on unrounded figures and not the rounded figures presented.