Condensed Statements of Changes in Net Assets in Liquidation (Liquidation Basis) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Increase (decrease) in net assets in liquidation:
Net reductions in (additions to) reserves for Expected Costs of Liquidation (Note 6)	$ 2,474	$ (3,200)	$ (7,824)	$ (7,335)
Net change in fair value of holdings of New GM Securities		83,540	(175,229)	(29,371)
Liquidation Basis of Accounting [Member]
Net Assets in Liquidation, beginning of period	613,298	750,038	944,736	1,064,494
Increase (decrease) in net assets in liquidation:
Liquidating distributions (Note 4)	(2,717)	2,090	(127,137)	(208,110)
Dividends and interest income (net reversal) (Note 3)	6	3,444	(21,485)	16,234
Other income	43		43
Net (decrease) increase in net assets in liquidation	(194)	85,874	(331,632)	(228,582)
Net Assets in Liquidation, end of period	$ 613,104	$ 835,912	$ 613,104	$ 835,912