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Prepaid And Other Assets (Summary Of Prepaid And Other Assets) (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
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Prepaid And Other Assets [Abstract] |  |
Prepaid expenses | $ 2,443 | $ 2,163
Prepaid rent | 39 | 1,093
Prepaid taxes | 791 | 912
Income taxes receivable | 6,767 | 1,669
Deposits | 234 | 214
Investment in marketable securities | 24 | 47
Restricted cash | 7 | 7
Total prepaid and other current assets | 10,305 | 6,105
Straight-line rent asset | 3,738 | 4,689
Other non-cinema and non-rental real estate assets | 1,134 | 1,134
Investment in Reading International Trust I | 838 | 838
Long-term deposits | 8 | 7
Total other non-current assets | $ 5,718 | $ 6,668

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