Net Assets in Liquidation - Reconciliation of Equity under Going Concern Basis of Accounting (Detail) - USD ($) $ in Thousands	Jan. 01, 2017	Mar. 31, 2017	Dec. 31, 2016
Net Assets In Liquidation [Line Items]
Total Equity as of December 31, 2016			$ (930,977)
Liquidation Value [Member]
Net Assets In Liquidation [Line Items]
Total Equity as of December 31, 2016	$ 941,669
Increase due to estimated net realizable value of investments in real estate	382,985
Increase due to estimated net realizable value of investments in unconsolidated joint venture	319,548
Decrease due to write off of unbilled rent receivables	(52,620)
Increase due to write off of market lease intangibles	65,187
Decrease due to write-off of assets and liabilities	(25,262)
Liability for estimated costs in excess of estimated receipts during liquidation	(78,581)
Adjustment to reflect the change to the liquidation basis of accounting	611,257
Estimated value of net assets in liquidation as of January 1, 2017	$ 1,552,926	$ 1,553,047	$ 1,552,926