Net Assets in Liquidation - Allowed and Disputed General Unsecured Claims and Potential Term Loan Avoidance Action Claims (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2013
Extinguishment of Debt [Line Items]
Beginning balance	$ 34,984,698
New Allowed General Unsecured Claims	1,550,000
Disputed General Unsecured Claims resolved or disallowed	(3,060,821)
Ending balance	33,473,877
Allowed General Unsecured Claims [Member]
Extinguishment of Debt [Line Items]
Beginning balance	30,293,305
New Allowed General Unsecured Claims	1,550,000
Disputed General Unsecured Claims resolved or disallowed
Ending balance	31,843,305
Disputed General Unsecured Claims [Member]
Extinguishment of Debt [Line Items]
Beginning balance	3,191,393
New Allowed General Unsecured Claims
Disputed General Unsecured Claims resolved or disallowed	(3,060,821)
Ending balance	130,572
Term Loan Avoidance Action Claims [Member]
Extinguishment of Debt [Line Items]
Beginning balance	1,500,000
New Allowed General Unsecured Claims
Disputed General Unsecured Claims resolved or disallowed
Ending balance	1,500,000
Maximum Amount of Unresolved Claims [Member]
Extinguishment of Debt [Line Items]
Beginning balance	4,691,393
New Allowed General Unsecured Claims
Disputed General Unsecured Claims resolved or disallowed	(3,060,821)
Ending balance	$ 1,630,572