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Schedule III - Real Estate and Accumulated Depreciation - Narrative (Details)
12 Months Ended
Dec. 31, 2017
Building [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful life 39 years
Building Improvements [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful life 7 years 6 months
Minimum [Member] | Furniture, Fixtures, and Equipment [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful life 1 year 6 months
Maximum [Member] | Furniture, Fixtures, and Equipment [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful life 5 years