Real Estate Transactions (Narrative) (Details)									12 Months Ended
	Mar. 12, 2020	Jun. 13, 2018 AUD ($) ft²	Dec. 14, 2017 AUD ($)	Dec. 14, 2017 USD ($)	Jun. 19, 2017 AUD ($)	Jun. 19, 2017 USD ($)	May 23, 2014 AUD ($)	May 23, 2014 USD ($)	Dec. 31, 2019 AUD ($)	Dec. 31, 2019 USD ($)	Aug. 28, 2019 USD ($)	Jun. 29, 2018 AUD ($) ft² ft	Jun. 29, 2018 USD ($) ft² ft	May 12, 2014 AUD ($) a	May 12, 2014 USD ($) a
Burwood [Member]
Property, Plant and Equipment [Line Items]
Sale price									$ 64,925,000					$ 65,000,000	$ 50,600,000
Adjustment to sale price									$ 75,000	$ 56,000
Area of property | a														50.6	50.6
Proceeds from the sale property			$ 36,600,000	$ 28,100,000	$ 21,800,000	$ 16,600,000	$ 6,500,000	$ 5,900,000
Property In Auburn Redyard, Australia [Member]
Property, Plant and Equipment [Line Items]
Sale price												$ 4,500,000	$ 3,500,000
Land At Cannon Park, Townsville, Australia [Member]
Property, Plant and Equipment [Line Items]
Area of property		163,000
Payment to acquire property | $		$ 1
Village East Cinema [Member]
Property, Plant and Equipment [Line Items]
Sale price | $											$ 5,900,000
Village East Cinema [Member] | Subsequent Event [Member]
Property, Plant and Equipment [Line Items]
Lease expiration date	Jan. 31, 2022
Building [Member] | Property In Auburn Redyard, Australia [Member]
Property, Plant and Equipment [Line Items]
Area of property												16,830	16,830
Land [Member] | Property In Auburn Redyard, Australia [Member]
Property, Plant and Equipment [Line Items]
Area of property												20,870	20,870
Land [Member] | Property In Auburn Redyard, Australia [Member] | Redyard ETC [Member]
Property, Plant and Equipment [Line Items]
Area of property												519,358	519,358
Length of frontage | ft												1,641	1,641