Real Estate Dispositions, Held for Sale and Impairment Charges - Components of Assets and Liabilities Held for Sale (Detail) - USD ($) $ in Thousands  | 
Mar. 31, 2021  | 
Dec. 31, 2020  | 
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| Assets Held for Sale | ||
| Total Assets Held for Sale | $ 0 | $ 8,498 | 
| Real Estate Held for Sale | ||
| Assets Held for Sale | ||
| Total real estate held for sale | 8,114 | |
| Lease intangibles, net | 384 | |
| Total Assets Held for Sale | $ 8,498 | 
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- Definition Disposal group including discontinued operation real estate investment property net. No definition available. 
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- Definition Amount classified as assets attributable to disposal group held for sale or disposed of. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- References No definition available. 
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- Definition Amount classified as intangible assets, excluding goodwill, attributable to disposal group held for sale or disposed of. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Details 
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