Description Of Business And Segment Reporting (Schedule Of Operating Property By Country) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014		Dec. 31, 2013
Segment Reporting Information [Line Items]
Total operating property	$ 210,298	$ 186,889	[1]	$ 191,660
Australia [Member]
Segment Reporting Information [Line Items]
Total operating property	106,985	87,536		97,240
New Zealand [Member]
Segment Reporting Information [Line Items]
Total operating property	36,526	39,800		36,319
United States [Member]
Segment Reporting Information [Line Items]
Total operating property	$ 66,787	$ 59,553		$ 58,101

[1] Certain prior period amounts have been reclassified to conform to the current period presentation (see Note 2 - Significant Accounting Policies - Reclassifications).