Liability for Estimated Costs in Excess of Estimated Receipts During Liquidation - Summary of Accrued Revenues and Expenses Expected to Incur During Liquidation (Detail) - Liquidation Value [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Liquidation Basis Of Accounting [Line Items]
Rents and reimbursements	$ 1,225	$ 2,694
Interest income		513
Property operating expenses	(37)	(36)
Interest expense	(221)	(1,101)
General and administrative expenses	(939)	(17,992)
Sales costs	(298)	(684)
Liability for estimated costs in excess of estimated receipts during liquidation	$ (270)	$ (16,606)