Net Assets in Liquidation - Schedule of GUC Trust Units (Detail)	3 Months Ended
	Sep. 30, 2018 Trust
Net Assets [Abstract]
Outstanding or issuable as of beginning of period	31,855,506
Issued during the period	0
Less: Issuable as of beginning of period	(2)
Add: Issuable as of end of period	0
Outstanding or issuable as of end of period	31,855,504