Condensed Statements of Changes in Net Assets in Liquidation (Liquidation Basis) - Liquidation Basis of Accounting [Member] - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Net Assets in Liquidation, beginning of period	$ 944,736	$ 1,064,494
Increase (decrease) in net assets in liquidation:
Net additions to reserves for Expected Costs of Liquidation	(2,331)	(1,844)
Liquidating distributions (Note 4)	(7,140)	(10,278)
Net change in fair value of holdings of New GM Securities	(127,008)	69,030
Dividends and interest income (net reversal) (Note 3)	(21,872)	9,334
Net (decrease) increase in net assets in liquidation	(158,351)	66,242
Net Assets in Liquidation, end of period	$ 786,385	$ 1,130,736