Statements of Changes in Net Assets in Liquidation (Liquidation Basis) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Increase (decrease) in net assets in liquidation:
Net (additions to) reductions in reserves for Expected Costs of Liquidation (Note 8)	$ (7,711)	$ (9,375)	$ 7,910
Net change in fair value of holdings of New GM Securities	(175,229)	56,241	702,654
Liquidation Basis of Accounting [Member]
Net Assets in Liquidation, beginning of year	944,736	1,064,494	1,390,181
Increase (decrease) in net assets in liquidation:
Liquidating distributions (Note 5)	(128,747)	(209,929)	(1,205,764)
Dividends and interest income (net reversal) (Note 3)	(21,319)	43,305	4,668
Other income	43
Income tax benefit (Note 9)			164,845
Net decrease in net assets in liquidation	(332,963)	(119,758)	(325,687)
Net Assets in Liquidation, end of year	$ 611,773	$ 944,736	$ 1,064,494