Property And Equipment (Narrative) (Details) AUD in Millions							3 Months Ended
	Dec. 23, 2015 AUD ft² item mi	Dec. 23, 2015 USD ($) ft² item mi	Apr. 01, 2015 NZD property	Feb. 25, 2015 USD ($)	May. 23, 2014 AUD	May. 23, 2014 USD ($)	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)	Mar. 31, 2016 AUD	Mar. 31, 2016 USD ($)	Dec. 31, 2015 AUD	Dec. 31, 2015 USD ($)		Apr. 30, 2015 NZD	Apr. 30, 2015 USD ($)	Apr. 01, 2015 USD ($)	May. 12, 2014 AUD a	May. 12, 2014 USD ($) a
Depreciation expense for property and equipment							$ 3,500,000	$ 3,500,000
Carrying value of property										$ 217,075,000		$ 210,298,000	[1]
Gain (loss) on sale of assets							$ 393,000	$ 2,822,000
Goodwill										20,002,000		19,715,000	[1]
Burwood [Member]
Sale price																	AUD 65.0	$ 50,800,000
Remaining purchase price									AUD 58.5	44,900,000
Carrying value of property									AUD 52.1	$ 40,000,000	AUD 52.1	$ 38,000,000
Area of property | a																	50.6	50.6
Proceeds from the sale property					AUD 6.5	$ 5,900,000
Doheny Condo, Los Angeles [Member]
Sale price				$ 3,000,000
Gain (loss) on sale of assets				$ 2,800,000
Lake Taupo [Member]
Number of land parcels sold | property			2
Sale price			NZD 3,400,000													$ 2,300,000
Lake Taupo Parcel One [Member]
Sale price														NZD 2,200,000	$ 1,600,000
Carrying value of property														1,800,000	1,300,000
Lake Taupo Parcel Two [Member]
Sale price														1,200,000	831,000
Carrying value of property														NZD 615,000	$ 426,000
Cannon Park, Queensland [Member]
Area of property | ft²	133,000	133,000
Percentage of acquisition completed	100.00%	100.00%
Payment to acquire property	AUD 33.6	$ 24,300,000
Ownership percentage in equity method									75.00%	75.00%
Number of major tenants | item	3	3
Number of specialty family oriented restaurant tenants | item	10	10
Number of retailers | item	4	4
Distance between two properties, Miles | mi	6.0	6.0
Percentage of property leased							98.00%
Liabilities assumed										$ 0
Measurement period							1 year
Goodwill										$ 0
Number of land parcels acquired | item	2	2
Cannon Park, Queensland [Member] | Minimum [Member]
Lease term							9 months
Cannon Park, Queensland [Member] | Maximum [Member]
Lease term							8 years

[1] Certain prior period amounts have been reclassified to conform to the current period presentation (see Note 1 - The Company and Basis of Presentation - Reclassifications)