Description Of Business And Segment Reporting (Summary Of Assets) (Details) - USD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Total Assets		$ 674,989	$ 439,237
Cash and cash equivalents		12,135	13,127	$ 13,668	$ 19,017
United States [Member]
Segment Reporting Information [Line Items]
Total Assets		356,191	220,986
Australia [Member]
Segment Reporting Information [Line Items]
Total Assets		248,031	156,768
New Zealand [Member]
Segment Reporting Information [Line Items]
Total Assets		70,767	61,483
Country [Member]
Segment Reporting Information [Line Items]
Total Assets		674,989	439,237
Cinema Exhibition [Member]
Segment Reporting Information [Line Items]
Total Assets		364,905	138,850
Real Estate [Member]
Segment Reporting Information [Line Items]
Total Assets		295,213	263,782
Corporate [Member]
Segment Reporting Information [Line Items]
Total Assets	[1]	$ 14,871	$ 36,605

[1] Corporate Assets includes cash and cash equivalents of $12.1 million and $13.1 million as of December 31, 2019 and 2018, respectively.