Net Assets in Liquidation - Schedule of GUC Trust Units (Detail) - Trust	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Net Assets [Abstract]
Outstanding or issuable at beginning of year	31,853,702	31,853,702	30,227,314
Issued during the year	56	10,326	1,644,941
Less: Issuable at beginning of year		(10,326)	(28,879)
Add: Issuable at end of year			10,326
Outstanding or issuable at end of year	31,853,758	31,853,702	31,853,702