Property And Equipment (Narrative) (Details) AUD in Millions				3 Months Ended			6 Months Ended
	May. 23, 2015 AUD	May. 23, 2015 USD ($)	Apr. 01, 2015 NZD property	Jun. 30, 2015 AUD a	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($)		Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) a	Apr. 30, 2015 NZD	Apr. 30, 2015 USD ($)	Apr. 16, 2015 AUD	Apr. 16, 2015 USD ($)	Apr. 01, 2015 USD ($)	Dec. 31, 2014 USD ($)
Property, Plant and Equipment [Line Items]
Depreciation expense for property and equipment					$ 3,300,000	$ 3,600,000	$ 6,800,000		$ 7,000,000
Carrying value of property										$ 176,471,000						$ 186,889,000
Gain (loss) on sale of assets					8,201,000		$ 11,023,000	[1]
Lake Taupo [Member]
Property, Plant and Equipment [Line Items]
Number of land parcels sold | property			2
Sales price			NZD 3,400,000												$ 2,300,000
Lake Taupo Parcel One [Member]
Property, Plant and Equipment [Line Items]
Sales price											NZD 2,200,000	$ 1,490,000
Carrying value of property											1,800,000	1,300,000
Lake Taupo Parcel Two [Member]
Property, Plant and Equipment [Line Items]
Sales price											1,200,000	810,000
Carrying value of property											NZD 600,000	$ 400,000
Moonee Ponds [Member]
Property, Plant and Equipment [Line Items]
Sales price													AUD 23.0	$ 17,500,000
Gain (loss) on sale of assets				AUD 10.3	$ 8,000,000
Burwood [Member]
Property, Plant and Equipment [Line Items]
Sales price				65.0						49,600,000
Carrying value of property				AUD 52.1						$ 39,700,000
Area of property | a				50.6						50.6
Proceeds from the sale property	AUD 6.5	$ 5,900,000
Sale agreements, prepayment as a percentage of net sale price				90.00%						90.00%

[1] Certain prior period amounts have been reclassified to conform to the current period presentation.