Net Assets in Liquidation - Schedule of Cash and Cash Equivalent and Marketable Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 15, 2011
Cash and Cash Equivalents [Line Items]
Residual Wind-Down Assets	$ 300	$ 42,800
Total	513,200
Cash and Cash Equivalents and Marketable Securities [Member]
Cash and Cash Equivalents [Line Items]
Distributable Cash (including associated Dividend Cash)	498,548
Residual Wind-Down Assets	320	$ 40,000
Other Administrative Cash	12,341
Administrative Fund	1,735
Funds for Indenture Trustee / Fiscal Paying Agent Costs	212
Total	$ 513,156