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Schedule III - Real Estate and Accumulated Depreciation - Narrative (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
property
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]      
Number of real estate assets held for sale | property 0    
Estimated aggregate total cost of total assets for federal income tax purposes $ 4,400,000 $ 4,000,000 $ 4,000,000
Issuance costs $ 5,841    
Minimum [Member] | Building and improvements      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]      
Asset estimated useful life 3 years 3 months 18 days    
Minimum [Member] | Lease intangibles      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]      
Asset estimated useful life 2 years 1 month 6 days    
Minimum [Member] | Personal Property      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]      
Asset estimated useful life 2 years 9 months 18 days    
Minimum [Member] | Land improvements      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]      
Asset estimated useful life 3 years    
Maximum [Member] | Building and improvements      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]      
Asset estimated useful life 39 years    
Maximum [Member] | Lease intangibles      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]      
Asset estimated useful life 99 years    
Maximum [Member] | Personal Property      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]      
Asset estimated useful life 20 years    
Maximum [Member] | Land improvements      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]      
Asset estimated useful life 39 years    
Mortgage Notes [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]      
Issuance costs $ 500    
Mortgage Notes Payable [Member] | Mortgage Notes [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]      
Unamortized premium 1,162 1,805  
Unaccreted discount 528 968  
Issuance costs $ 549 $ 744