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Description Of Business And Segment Reporting (Summary Of Assets) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | --- | ---
Segment Reporting Information [Line Items] |  |  |  |  |
Total Assets |  | $ 690,169 | $ 674,989 |  |
Cash and cash equivalents |  | 26,826 | 12,135 | $ 13,127 | $ 13,668
United States [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total Assets |  | 340,836 | 356,191 |  |
Australia [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total Assets |  | 267,153 | 248,031 |  |
New Zealand [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total Assets |  | 82,180 | 70,767 |  |
Country [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total Assets |  | 690,169 | 674,989 |  |
Cinema Exhibition [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total Assets |  | 357,196 | 364,905 |  |
Real Estate [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total Assets |  | 312,832 | 295,213 |  |
Corporate [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total Assets | [1] | $ 20,141 | $ 14,871 |  |
[1] | Corporate Assets includes cash and cash equivalents of $26.8 million and $12.1 million as of December 31, 2020 and 2019, respectively.

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