Schedule III - Real Estate and Accumulated Depreciation (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Accumulated Depreciation		$ (4,301)	$ (7,160)	$ (14,023)	$ (23,584)
Net Liquidation Adjustment		(7,114,000)
Total		14,225	$ 40,136	$ 200,675	$ 377,446
Other [Member] | Churchill [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		3,979
Initial Cost to Company, Land		0
Initial Cost to Company, Building and Improvements		23,834
Land		0
Building and Improvements		11,705
Accumulated Depreciation	[1]	(4,301)
Total		$ 7,404
Date Acquired		2004-11
Life		40 years
Net Liquidation Adjustment [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	[2]	$ 0
Land	[2]	0
Net Liquidation Adjustment	[2]	2,520
Total	[2]	2,520
Liquidation Value [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		3,979
Initial Cost to Company, Land		0
Initial Cost to Company, Building and Improvements		23,834
Land		0
Building and Improvements		11,705
Accumulated Depreciation	[1]	(4,301)
Net Liquidation Adjustment	[2]	2,520
Total		$ 9,924

[1] Depreciation expense will not be recorded subsequent to July 31, 2014 as a result of the adoption of our plan of liquidation.

[2] Under the liquidation basis of accounting, our real estate holding are now carried at their estimated value, as a result the net liquidation adjustment is the net adjustment that we have made to the carrying value of the property in order to reflect its fair value.