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Nature of Business and Financial Statement Presentation (Tables)
9 Months Ended
Sep. 30, 2017
Accounting Policies [Abstract]  
Schedule of estimated useful lives
Certain real estate assets are depreciated using the straight-line method over the estimated useful lives of the assets. The estimated useful lives are as follows:
Building and building and land improvements
20 - 40 years
Furniture, fixtures, and equipment
5 - 10 years
Tenant improvements
The shorter of the term of the related lease or useful life