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Investments In Direct Financing Lease (Future Minimum Rentals Receivable) (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Capital Leases, Net Investment in Direct Financing Leases [Abstract]    
2019 $ 1,704  
2020 2,333  
2021 2,403  
2022 2,475  
2023 2,550  
Thereafter 24,326  
Total $ 35,791 $ 36,352