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Real Estate (Held For Sale) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
property
Dec. 31, 2017
USD ($)
property
Real Estate [Abstract]    
Number of properties classified as held for sale | property 3 5
Number of sold properties | property 2  
Land and improvements $ 8,606 $ 9,411
Building and improvements 26,147 27,342
Real estate held for sale, gross 34,753 36,753
Less accumulated depreciation and amortization (6,897) (6,602)
Less impairment (14,250) (778)
Real estate held for sale, net $ 13,606 $ 29,373