Description Of Business And Segment Reporting (Schedule Of Operating Property By Country) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Total operating property	$ 211,886	$ 210,298	[1],[2]
United States [Member]
Segment Reporting Information [Line Items]
Total operating property	75,845	66,787
Australia [Member]
Segment Reporting Information [Line Items]
Total operating property	103,430	106,985
New Zealand [Member]
Segment Reporting Information [Line Items]
Total operating property	$ 32,611	$ 36,526

[1] Certain 2015 balances have been reclassified to conform to the 2016 presentation (see Note 2 - Summary of Significant Accounting Policies - Reclassifications).

[2] Certain 2015 balances included the restatement impact as a result of a change in accounting principle (see Note 2 - Summary of Significant Accounting Policies - Accounting Changes).