Fresh Start Financial Statement Reporting - Schedule of Reconciliation of Enterprise Value to Reorganization Value, and Determination of Goodwill (Detail) $ in Thousands	Apr. 30, 2013 USD ($)
Reorganizations [Abstract]
Enterprise value	$ 185,000
Add: Fair value of liabilities	28,393,020
Add: Fair value of noncontrolling interest	275,415
Total assets	28,853,435
Less: Fair value of identified tangible and intangible assets	28,338,924
Reorganization value in excess of fair value of assets (goodwill)	$ 514,511

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Plan Of Reorganization Enterprise Value

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

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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.

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Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.

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