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Earnings (Loss) Per Share (Tables)
 9 Months Ended
Sep. 30, 2014
Earnings Per Share [Abstract]  
Schedule of Anti-dilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
Our calculation for basic and dilutive earnings per share for the three and nine months ended September 30 is as follows:

 
Three Months
 
Nine Months
(dollars in millions, except per share data, shares in thousands)
2014
 
2013
 
2014
 
2013
Basic net income (loss) available to common shareholders
$
1.2

 
$
(44.4
)
 
$
(92.0
)
 
$
(84.0
)
Effect of dilutive securities:
 
 
 
 
 
 
 
Series B Notes1
(2.0
)
 
—

 
—

 
—

Dilutive net loss available to common shareholders
$
(0.8
)
 
$
(44.4
)
 
$
(92.0
)
 
$
(84.0
)
 
 
 
 
 
 
 
 
Basic weighted average shares outstanding
30,639

 
9,977

 
27,896

 
9,053

Effect of dilutive securities:
 
 
 
 
 
 
 
Stock options and restricted stock
282

 
—

 
—

 
—

Series B Notes
982

 
—

 
—

 
—

Dilutive weighted average shares outstanding
31,903

 
9,977

 
27,896

 
9,053

 
 
 
 
 
 
 
 
Basic earnings (loss) per share
$
0.04

 
$
(4.45
)
 
$
(3.30
)
 
$
(9.29
)
Diluted loss per share
$
(0.03
)
 
$
(4.45
)
 
$
(3.30
)
 
$
(9.29
)
1The Series B Notes are recorded at a discount that accelerates upon conversion and contain a make-whole interest premium that would require us to pay interest as if the security was held to maturity upon conversion and, as such, would result in incremental expense under the if-converted method.