Statements of Cash Flows (Liquidation Basis) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Cash flows from (used in) operating activities
Cash receipts from interest and dividends	$ 8,965	$ 9,795	$ 4,803
Cash paid for professional fees, governance costs and other administrative costs	(10,933)	(12,455)	(11,886)
Cash paid for Residual Wind-Down Claims and Costs			(11,705)
Cash paid for distributions	(67,818)	(40)	(433)
Cash receipts for refunds, including amounts due others			196
Cash receipts for refunds		7
Net cash flows used in operating activities	(69,786)	(2,693)	(19,025)
Cash flows from (used in) investing activities
Cash used to purchase marketable securities	(2,210,573)	(4,331,503)	(3,553,448)
Cash from maturities and sales of marketable securities	2,321,024	4,333,458	3,570,716
Net cash flows from investing activities	110,451	1,955	17,268
Cash flows from financing activities
Cash reimbursement from the Avoidance Action Trust	360	0	0
Net cash flows from financing activities	360	0	0
Net increase (decrease) in cash and cash equivalents	41,025	(738)	(1,757)
Cash and cash equivalents, beginning of year	1,825	2,563	4,320
Cash and cash equivalents, end of year	$ 42,850	$ 1,825	$ 2,563