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Income Taxes Income Taxes (Tables)
12 Months Ended
Dec. 31, 2015
Income Tax Disclosure [Abstract]  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
The provision (benefit) for income taxes from continuing operations is as follows (in millions):
 
Successor
 
 
Predecessor
 
Year Ended December 31, 2015
 
Three Months Ended December 31, 2014
 
 
Nine Months Ended September 30, 2014
Current:
 
 
 
 
 
 
  Federal
$

 
$

 
 
$

  State and local
(0.3
)
 

 
 
(1.0
)
  Foreign

 

 
 

 
(0.3
)
 

 
 
(1.0
)
Deferred:
 
 
 
 
 
 
  Federal

 
(2.4
)
 
 

  State and local

 

 
 

  Foreign

 

 
 

 

 
(2.4
)
 
 

 
$
(0.3
)
 
$
(2.4
)
 
 
$
(1.0
)
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Future tax consequences of temporary differences between the carrying amounts for financial reporting purposes and the Company’s estimate of the tax bases of its assets and liabilities result in deferred tax assets and liabilities, as follows (in millions):
 
December 31,
 
2015
 
2014
Deferred tax assets:
 
 
 
Plant lease turnover and other exit costs
$
3.1

 
$
0.9

Employee benefits costs
137.7

 
148.5

Inventory
3.1

 
6.6

Property, plant and equipment
437.1

 
450.2

Waste disposition
0.3

 
1.3

Net operating loss and credit carryforwards
114.3

 
76.7

Accrued expenses
8.8

 
5.4

Other
11.9

 
14.6

 
$
716.3

 
$
704.2

Valuation allowance
(676.4
)
 
(659.6
)
Deferred tax assets, net of valuation allowance
$
39.9

 
$
44.6

 
 
 
 
Deferred tax liabilities:
 
 
 
Intangible assets
37.3

 
42.0

Prepaid expenses
2.6

 
2.6

Deferred tax liabilities
$
39.9

 
$
44.6

 
$

 
$

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
A reconciliation of income taxes calculated based on the federal statutory income tax rate of 35% and the effective tax rate follows:
 
Successor
 
 
Predecessor
 
Year Ended December 31, 2015
 
Three Months Ended December 31, 2014
 
 
Nine Months Ended September 30, 2014
Federal statutory tax rate
35
 %
 
35
 %
 
 
35
 %
State income taxes, net of federal

 
1

 
 

Basis allocated to exempt income

 
17

 
 

Excess reorganization value
(26
)
 

 
 
(14
)
Other nondeductible expenses
(1
)
 
(4
)
 
 

Valuation allowance against deferred tax assets
(9
)
 
(39
)
 
 
(23
)
Restructuring costs

 

 
 
2

State rate changes and tax attributes
1

 
(5
)
 
 

 
 %
 
5
 %
 
 
 %
Summary of Income Tax Contingencies [Table Text Block]
A reconciliation of the beginning and ending amount of unrecognized tax benefits follows (in millions):
 
Successor
 
 
Predecessor
 
Year Ended December 31, 2015
 
Three Months Ended December 31, 2014
 
 
Nine Months Ended September 30, 2014
Balance at beginning of the period
$
1.3

 
$
1.3

 
 
$
2.3

Additions to tax positions of current period

 

 
 

Reductions to tax positions of prior years
(0.3
)
 

 
 
(1.0
)
Balance at end of the period
$
1.0

 
$
1.3

 

$
1.3