Net Assets in Liquidation - Schedule of Cash and Cash Equivalent and Marketable Securities (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Mar. 31, 2015	Dec. 15, 2011
Cash and Cash Equivalents [Line Items]
Residual Wind-Down Assets			$ 42,800
Other Administrative Cash	$ 13,500
Funds for Indenture Trustee/Fiscal Paying Agent Costs	300
Total	665,500	$ 68,400
Cash and Cash Equivalents and Marketable Securities [Member]
Cash and Cash Equivalents [Line Items]
Distributable Cash (including associated Dividend Cash)	620,866	17,034
Residual Wind-Down Assets	22,003	28,158
Other Administrative Cash	13,533	14,477
Administrative Fund	8,226	8,258
Funds for Indenture Trustee/Fiscal Paying Agent Costs	311	373
Other	594	127
Total	$ 665,533	$ 68,427