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Earnings Per Common Share (Tables)
 12 Months Ended
Dec. 31, 2015
Earnings Per Share [Abstract]  
Reconciliation Of The Numerator And Denominator Of Earnings (Loss) Per Common Share
A reconciliation of the numerator and denominator of earnings (loss) per common share-basic to earnings (loss) per common share-assuming dilution is as follows (in millions, except per share data):
 
Year Ended
 
Dec 31, 2015
 
Dec 31, 2014
 
Dec 31, 2013
Amounts attributable to the Company — basic and diluted:
 
 
 
 
 
Net income (loss) from continuing operations
$
(124.2
)
 
$
(572.8
)
 
$
(35.7
)
Less: Net income (loss) attributable to continuing operations noncontrolling interest
(10.7
)
 
(0.1
)
 
0.8

Less: preferred stock dividends
—

 
—

 
0.3

Net income (loss) from continuing operations
attributable to Company common shareholders
$
(113.5
)
 
$
(572.7
)
 
$
(36.8
)
Net income (loss) from discontinued operations, net of tax
(11.6
)
 
(70.2
)
 
25.6

Less: Net income attributable to discontinued operations noncontrolling interest
(3.2
)
 
(15.3
)
 
6.9

Net income (loss) from discontinued operations attributable to Company common shareholders
$
(8.4
)
 
$
(54.9
)
 
$
18.7

Net income (loss) attributable to Company common shareholders
(121.9
)
 
(627.6
)
 
(18.1
)
Less: Net income allocated to participating securities(4)
—

 
—

 
0.1

Net income (loss) for basic EPS computations(1)
$
(121.9
)
 
$
(627.6
)
 
$
(18.2
)
Weighted average shares outstanding for basic EPS computation (2,3)
48.9

 
48.8

 
49.4

Earnings (loss) per share calculated — basic:
 
 
 
 
 
Earnings (loss) from continuing operations attributable to Company common shareholders per common share – basic (3)
$
(2.32
)
 
$
(11.74
)
 
$
(0.75
)
Earnings (loss) from discontinued operations attributable to Company common shareholders per common share – basic
$
(0.17
)
 
$
(1.12
)
 
$
0.38

Earnings (loss) per common share attributable to Company common shareholders – basic (3)
$
(2.49
)
 
$
(12.86
)
 
$
(0.37
)
Weighted average shares outstanding including nonvested shares
48.9

 
48.8

 
49.4

Weighted average shares outstanding for diluted EPS computation (2)
48.9

 
48.8

 
49.4

Earnings (loss) per share calculation — assuming dilution:
 
 
 
 
 
Earnings (loss) from continuing operations attributable to Company common shareholders per common share – assuming dilution
$
(2.32
)
 
$
(11.74
)
 
$
(0.75
)
Earnings (loss) from discontinued operations attributable to Company common shareholders per common share – assuming dilution
$
(0.17
)
 
$
(1.12
)
 
$
0.38

Earnings (loss) per common share attributable to Company common shareholders – assuming dilution
$
(2.49
)
 
$
(12.86
)
 
$
(0.37
)
(1)
Numerator
(2)
Denominator
(3)
Under the two class method, Earnings per share — basic reflects undistributed earnings per share for both common stock and unvested share-based payment awards (restricted stock).
(4)
Outstanding unvested share-based payment awards that contain rights to non-forfeitable dividends are considered participating securities in undistributed earnings in the calculation above.
Impact Of Company's Stock Price On Assuming Dilution Calculation For The Subordinated Convertible Notes
The following table provides examples of how changes in the Company’s stock price would require the inclusion of additional shares in the denominator of the weighted average shares outstanding — assuming dilution calculation for the Subordinated Convertible Notes.
 
 
Shares Underlying
Subordinated
 
Total Treasury Method
Share Price
 
Convertible Notes
 
Incremental Shares (1)
$36.75
 
—

 
—

$38.75
 
603,152

 
603,152

$40.75
 
1,147,099

 
1,147,099

$42.75
 
1,640,151

 
1,640,151

$44.75
 
2,089,131

 
2,089,131

(1)
Represents the number of incremental shares that must be included in the calculation of fully diluted shares under U.S. GAAP.