Net Assets in Liquidation - Schedule of Cash and Cash Equivalent and Marketable Securities (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 15, 2011
Cash and Cash Equivalents [Line Items]
Residual Wind-Down Assets		$ 42,800
Other Administrative Cash	$ 7,108
Funds for Indenture Trustee/Fiscal Paying Agent Costs	339
Total	803,444
Cash and Cash Equivalents and Marketable Securities [Member]
Cash and Cash Equivalents [Line Items]
Distributable Cash (including Dividend Cash)	762,911
Residual Wind-Down Assets	24,827
Administrative Fund	8,243
Other Administrative Cash	7,108
Funds for Indenture Trustee/Fiscal Paying Agent Costs	339
Other	16
Total	$ 803,444