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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2016
Accounting Policies [Abstract]  
Property, Plant and Equipment
Depreciation and amortization are recorded on a straight-line basis over the estimated useful lives as follows:
Acquired ground leases
  
Terms of the related lease
Buildings and improvements
  
5-39 years
Machinery and equipment
 
7-15 years
Furniture and fixtures
 
3-5 years
Leasehold improvements
 
Shorter of the estimated useful lives or the terms of the related leases
Tenant improvements
  
Shorter of the estimated useful lives or the terms of the related leases