Net Assets in Liquidation - Schedule of GUC Trust Units (Detail)	3 Months Ended
	Dec. 31, 2013 Trust
Assets Net [Abstract]
Outstanding or issuable at September 30, 2013	30,293,376
Issued during the period	1,560,575
Less: Issuable at beginning of period	(10,575)
Add: Issuable at end of period
Outstanding at December 31, 2013	31,843,376