Net Assets in Liquidation - Schedule of GUC Trust Units (Detail) - Trust	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Outstanding or issuable as of beginning of year	31,855,504	31,855,504	31,854,103
Issued during the year	230,997	0	1,448
Less: Issuable as of beginning of year	0	0	(47)
Add: Issuable as of end of year	0	0	0
Outstanding as of end of year	32,086,501	31,855,504	31,855,504