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Mortgages and Notes Receivable (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Dec. 31, 2010
transactions
Dec. 31, 2012
USD ($)
Mortgages and Notes Receivable, Net [Abstract]          
Mortgages and notes receivable, net $ 2,096 $ 13,116      
Repayments of mortgages and notes receivable 9,381 17,239 $ 405    
Seller Financing [Member]          
Mortgages and Notes Receivable, Net [Abstract]          
Number of transactions with seller financing | transactions       2  
Repayments of mortgages and notes receivable   16,500      
Deferred gain on sale of real estate   $ 400      
Mortgage Receivable [Member]          
Mortgages and Notes Receivable, Net [Abstract]          
Repayments of mortgages and notes receivable $ 9,900        
Mortgages and notes receivable, gross         $ 8,600
Additional loan commitment to third party         $ 8,400