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Schedule IV (Consolidated) - Mortgage Loans on Real Estate (Details)
12 Months Ended
Dec. 31, 2015
USD ($)
Mortgage Loans on Real Estate [Line Items]  
Carrying Amount of Mortgages $ 570,000
Seller financing | Seller financing, maturing August 2016  
Mortgage Loans on Real Estate [Line Items]  
Interest Rate 4.00%
Prior Liens $ 0
Carrying Amount of Mortgages 90,000
Principal Amount of Loans Subject to Delinquent Principal or Interest $ 0
Various other seller financing | Various other seller financing, maturing October 2016 through November 2023  
Mortgage Loans on Real Estate [Line Items]  
Interest Rate, Minimum 4.80%
Interest Rate, Maximum 7.81%
Prior Liens $ 0
Carrying Amount of Mortgages 480,000
Principal Amount of Loans Subject to Delinquent Principal or Interest $ 0