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Intangible Assets Schedule of Intangible Assets and Excess Reorganization Value (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014
Contract-Based Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 54.6
Successor [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	123.5
Excess reorganization value	137.2
Successor [Member] | Contract-Based Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	54.6
Successor [Member] | Customer-Related Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 68.9

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267



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-Name Accounting Standards Codification

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-Section 45

-Paragraph 1

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- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274



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-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

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-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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