Net Assets in Liquidation - Schedule of GUC Trust Units (Detail)	3 Months Ended
	Sep. 30, 2016 Trust
Net Assets [Abstract]
Outstanding or issuable at beginning of period	31,853,834
Issued during the period	76
Less: Issuable at beginning of period	(76)
Add: Issuable at end of period	130
Outstanding or issuable at end of period	31,853,964