Description Of Business And Segment Reporting (Summary Of Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Total Assets	$ 687,702	$ 690,169
Cash and cash equivalents	83,251	26,826	$ 12,135
United States [Member]
Segment Reporting Information [Line Items]
Total Assets	336,029	340,836
Australia [Member]
Segment Reporting Information [Line Items]
Total Assets	274,330	267,153
New Zealand [Member]
Segment Reporting Information [Line Items]
Total Assets	77,343	82,180
Country [Member]
Segment Reporting Information [Line Items]
Total Assets	687,702	690,169
Cinema Exhibition [Member]
Segment Reporting Information [Line Items]
Total Assets	316,169	357,196
Real Estate [Member]
Segment Reporting Information [Line Items]
Total Assets	257,224	312,832
Corporate [Member]
Segment Reporting Information [Line Items]
Total Assets	$ 114,309	$ 20,141