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Real Estate (Held For Sale) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2020
USD ($)
property
Dec. 31, 2019
USD ($)
property
Real Estate [Abstract]    
Number of properties classified as held for sale | property 5 10
Number of sold properties | property 5  
Land and improvements $ 3,841 $ 7,046
Building and improvements 4,971 7,886
Real estate held for sale, gross 8,812 14,932
Less accumulated depreciation and amortization (2,536) (3,872)
Less impairment (605) (1,107)
Real estate held for sale, net $ 5,671 $ 9,953