Net Assets in Liquidation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended		9 Months Ended
	Nov. 10, 2021	Nov. 02, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2019
Subsequent Event [Member]
Net Assets In Liquidation [Line Items]
Liquidating distributions per common share		$ 0.19
Liquidating distribution declared date		Nov. 30, 2021
Liquidation Value [Member]
Net Assets In Liquidation [Line Items]
Liquidation value of property			$ 1,650,000		$ 1,650,000
Increase (decrease) in net assets subject to liquidation			(800)	$ (500)	3,600	$ 3,500
Net increase (decrease) in liquidation value			$ (3,013)	(3,654)	(5,769)	(11,071)
Liquidating distributions per common share			$ 19.28
Net assets in liquidation			$ 323,756	366,306	323,756	366,306	$ 322,926	$ 327,390	$ 366,850	$ 362,791
Liquidating distributions to unit holders			$ 1,025,000
Liquidating distributions per unit			$ 80.35
Liquidation Value [Member] | Subsequent Event [Member]
Net Assets In Liquidation [Line Items]
Estimated future liquidating distributions per common share	$ 19.09
Liquidation Value [Member] | Viceroy Management Agreement [Member]
Net Assets In Liquidation [Line Items]
Net increase (decrease) in liquidation value			$ 2,200	(4,200)	9,400	7,600
Liquidation Value [Member] | Remeasurement [Member]
Net Assets In Liquidation [Line Items]
Net increase (decrease) in liquidation value			(500)	(600)	(1,900)	2,100
Liquidation Value [Member] | Worldwide Plaza [Member]
Net Assets In Liquidation [Line Items]
Net increase (decrease) in liquidation value			$ 3,500	$ 4,200	$ (7,700)	$ 13,200
Common Stock [Member] | Liquidation Value [Member]
Net Assets In Liquidation [Line Items]
Common stock, shares outstanding			16,791,769		16,791,769			16,791,769
Stock Units [Member] | Liquidation Value [Member]
Net Assets In Liquidation [Line Items]
Liquidating distributions per unit			$ 61.07