Net Assets in Liquidation - Additional Information (Detail) - USD ($)			2 Months Ended	9 Months Ended
	Jun. 16, 2015	Jan. 15, 2015	Sep. 30, 2014	Sep. 30, 2015
Business Acquisition [Line Items]
Decreased in net assets on liquidation				$ 42,112,000
Liquidating distributions to holders of Common Shares				45,531,000
Remeasurement of non-controlling interests				400,000
Change in liquidation value of investments in real estate			$ (1,250,000)	4,723,000
Change in liquidation value of equity investments				$ 499,000
Liquidation distribution per share	$ 1.25	$ 2.25		$ 15.17
Liquidation date, expected completion				Sep. 30, 2015
Corporate Expenditures [Member]
Business Acquisition [Line Items]
Remeasurement of Assets and Liabilities				$ 1,557,000