Share-Based Compensation (Stock Options Weighted Average Grant Date Fair Value) (Details) (USD $)	3 Months Ended	9 Months Ended	12 Months Ended
Dec. 31, 2012 Successor [Member] Stock Option Tranche 1 [Member]	Dec. 31, 2012 Successor [Member] Stock Option Tranche 2 [Member] Vesting Event A [Member]	Dec. 31, 2012 Successor [Member] Stock Option Tranche 2 [Member] Vesting Event B [Member]	Sep. 28, 2012 Predecessor [Member]	Dec. 31, 2011 Predecessor [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average per share fair value of options granted	$ 0.67	$ 0.68	$ 0.76	$ 12.46	$ 15.34

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Period Type:	duration