Property, Plant and Equipment Property, Plant and Equipment (Tables) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
Sep. 30, 2014
Successor [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 3.7
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	0
Property, Plant and Equipment, Net	3.7
Successor [Member] \| Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	0
Successor [Member] \| Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	3.7
Predecessor [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	305.1
Property, Plant and Equipment, Transfers and Changes	(257.0)
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(297.2)
Depreciation	(4.0)
Accumulated Depreciation, Depletion and Amortization, Sale or Disposal of Property, Plant and Equipment	256.8
Property, Plant and Equipment, Net	7.9
Accumulated Depreciation, Depletion and Amortization, Write-down of Property, Plant and Equipment	(0.2)
Fresh-Start Adjustment, Increase (Decrease), Other Property and Equipment	(44.4)
Fresh-Start Adjustment, Increase (Decrease), Accumulated Depreciation and Amortization	44.4
Predecessor [Member] \| Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	141.1
Property, Plant and Equipment, Transfers and Changes	(138.4)
Fresh-Start Adjustment, Increase (Decrease), Leasehold Improvements	(2.7)
Predecessor [Member] \| Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	164.0
Property, Plant and Equipment, Transfers and Changes	(118.6)
Fresh-Start Adjustment, Increase (Decrease), Other Property and Equipment	$ (41.7)

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.14)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 14

-Article 5

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- Definition

The decrease in accumulated depreciation, depletion and amortization (relating to property, plant and equipment) as a result of sales or disposals of property, plant and equipment during the period.

+ References

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount of fresh-start adjustment to accumulated depreciation and amortization.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 852

-SubTopic 10

-Section 55

-Paragraph 10

-URI http://asc.fasb.org/extlink&oid=34712771&loc=d3e56426-112766

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-Subparagraph (a)

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- Definition

Amount of fresh-start adjustment to leasehold improvements.

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- Definition

Amount of fresh-start adjustment to other property and equipment.

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- Definition

The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 958

-SubTopic 225

-Section 45

-Paragraph 11

-Subparagraph (a)

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-Name Accounting Standards Codification

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- Definition

Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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- Definition

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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-Publisher FASB

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 13

-Subparagraph a

-Article 5

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 8

-Article 7

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- Definition

Amount of reclassification, impairment, donation, or other change to long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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