Net Assets in Liquidation - Allowed and Disputed General Unsecured Claims and Potential Term Loan Avoidance Action Claims (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended									12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014 Allowed General Unsecured Claims [Member]	Mar. 31, 2013 Allowed General Unsecured Claims [Member]	Mar. 31, 2014 Disputed General Unsecured Claims [Member]	Mar. 31, 2013 Disputed General Unsecured Claims [Member]	Mar. 31, 2014 Term Loan Avoidance Action Claims [Member]	Mar. 31, 2013 Term Loan Avoidance Action Claims [Member]	Mar. 31, 2012 Term Loan Avoidance Action Claims [Member]	Mar. 31, 2014 Maximum Amount of Unresolved Claims [Member]	Mar. 31, 2013 Maximum Amount of Unresolved Claims [Member]
Extinguishment of Debt [Line Items]
Beginning balance	$ 35,332,115	$ 36,742,149	$ 30,227,244	$ 30,036,882	$ 3,604,871	$ 5,205,267	$ 1,500,000	$ 1,500,000	$ 1,500,000	$ 5,104,871	$ 6,705,267
New Allowed General Unsecured Claims	1,626,386	190,362	1,626,386	190,362
Disputed General Unsecured Claims resolved or disallowed	(3,525,371)	(1,600,396)			(3,525,371)	(1,600,396)				(3,525,371)	(1,600,396)
Ending balance	$ 33,433,130	$ 35,332,115	$ 31,853,630	$ 30,227,244	$ 79,500	$ 3,604,871	$ 1,500,000	$ 1,500,000	$ 1,500,000	$ 1,579,500	$ 5,104,871