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Summary of Significant Accounting Policies - Estimated Useful Lives of Assets (Details)
12 Months Ended
Dec. 31, 2019
Buildings and improvements | Minimum  
Property, Plant and Equipment [Line Items]  
Estimated useful Life 7 years
Buildings and improvements | Maximum  
Property, Plant and Equipment [Line Items]  
Estimated useful Life 40 years
Leasehold interest | Minimum  
Property, Plant and Equipment [Line Items]  
Estimated useful Life 25 years
Leasehold interest | Maximum  
Property, Plant and Equipment [Line Items]  
Estimated useful Life 34 years
Furniture, fixtures and equipment | Minimum  
Property, Plant and Equipment [Line Items]  
Estimated useful Life 3 years
Furniture, fixtures and equipment | Maximum  
Property, Plant and Equipment [Line Items]  
Estimated useful Life 7 years