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Real Estate Dispositions, Held for Sale and Impairment Charges - Components of Assets and Liabilities Held for Sale (Detail) - USD ($) $ in Thousands | Jun. 30, 2017 | Dec. 31, 2016
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ASSETS HELD FOR SALE |  |
Total Assets Held for Sale | $ 4,208 | $ 9,562
Liabilities Held for Sale |  |
Total Liabilities Held for Sale | 0 | 1,041
Real Estate Held for Sale |  |
ASSETS HELD FOR SALE |  |
Real estate, at cost | 6,622 | 11,454
Less: accumulated depreciation | 2,414 | 2,668
Total real estate held for sale, net | 4,208 | 8,786
Lease intangibles, net | 0 | 200
Deferred rent receivable, net | 0 | 575
Other assets | 0 | 1
Total Assets Held for Sale | 4,208 | 9,562
Liabilities Held for Sale |  |
Deferred rent liability, net | 0 | 755
Asset retirement obligation | 0 | 286
Total Liabilities Held for Sale | $ 0 | $ 1,041

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