XML 94 R37.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
(Loss) Income Per Share (In millions of dollars, except shares and per share data) (Tables)
 12 Months Ended
Dec. 31, 2019
Earnings Per Share [Abstract]  
Computation of Basic Income (Loss) Per Share and Loss Per Share, Assuming Dilution
The following table sets forth the computation of basic (loss) income per share and (loss) income per share, assuming dilution for the following years:

 

2019

2018

2017
Numerator: (Dollars in millions)







Net (loss) income

$
(6.6
)

$
9.4


$
38.3

Denominator:







Average common shares outstanding

89,022,531


88,590,491


88,323,213


Other potentially dilutive common shares

—


856,426


564,599


Average common shares outstanding, assuming dilution

89,022,531


89,446,917


88,887,812













Net (loss) income per share, basic

$
(0.07
)

$
0.11


$
0.43


Net (loss) income per share, assuming dilution

$
(0.07
)

$
0.11


$
0.43