Commitments And Contingencies (Details) NZD in Thousands, $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2015 NZD	Sep. 30, 2015 USD ($)	Dec. 31, 2014 NZD	Dec. 31, 2014 USD ($)
Commitments And Contingencies [Abstract]
Total debt of unconsolidated joint ventures and entities	NZD 1,000	$ 639	NZD 760	$ 592
Share of unconsolidated debt, based on ownership percentage		$ 213		$ 197