Condensed Statements of Changes in Net Assets in Liquidation (Liquidation Basis) - Liquidation Basis of Accounting [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Net Assets in Liquidation, beginning of period	$ 466,992	$ 486,353	$ 464,803	$ 488,213
Increase (decrease) in net assets in liquidation:
Additions to reserves for Expected Costs of Liquidation and Residual Wind-Down Claims and Costs (Note 6)	(13,053)	(6,483)	(8,579)	(9,529)
Reversal of contingent settlement obligation (Note 3)	15,000		15,000
Liquidating distributions (Note 4)	1	791		(15)
Dividends and interest income (Note 3)	12,817	3,264	10,533	5,256
Other income (Note 3)		1,508		1,508
Net increase (decrease) in net assets in liquidation	14,765	(920)	16,954	(2,780)
Net Assets in Liquidation, end of period	$ 481,757	$ 485,433	$ 481,757	$ 485,433