Net Assets in Liquidation - Schedule of GUC Trust Units (Detail)	12 Months Ended
	Mar. 31, 2015 Trust	Mar. 31, 2014 Trust	Mar. 31, 2013 Trust
Net Assets [Abstract]
Outstanding or issuable at beginning of year	31,853,702	30,227,314	30,036,945
Issued during the year	10,326	1,644,941	274,604
Less: Issuable at beginning of year	(10,326)	(28,879)	(113,114)
Add: Issuable at end of year		10,326	28,879
Outstanding or issuable at end of year	31,853,702	31,853,702	30,227,314