Real Estate Transactions (Schedule Of Purchase Price Allocation) (Details) - Dec. 31, 2017 $ in Thousands, $ in Thousands		AUD ($)	USD ($)	[1]
Acquired Finite-Lived Intangible Assets [Line Items]
Land		$ 11,142	$ 8,046
Building and improvements		16,518	11,928
Site improvements		2,321	1,676
Tenant improvements		957	691
Total assets acquired		33,522	24,207
Net assets acquired		33,392	24,113
Above-Market Leases [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets		61	44
In-Place Leases [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets		2,135	1,542
Unamortized Leasing Commissions [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets		333	240
Unamortized Legal Fees [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets		55	40
Below-Market Leases [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Liabilities assumed		(130)	(94)
Previously Reported [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Land		10,421	7,525
Building and improvements		22,971	16,588
Total assets acquired		33,392	24,113
Net assets acquired		33,392	$ 24,113
Adjustment [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Land	[2]	721
Building and improvements	[2]	(6,453)
Site improvements	[2]	2,321
Tenant improvements	[2]	957
Total assets acquired	[2]	130
Adjustment [Member] | Above-Market Leases [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	[2]	61
Adjustment [Member] | In-Place Leases [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	[2]	2,135
Adjustment [Member] | Unamortized Leasing Commissions [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	[2]	333
Adjustment [Member] | Unamortized Legal Fees [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	[2]	55
Adjustment [Member] | Below-Market Leases [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Liabilities assumed	[2]	$ (130)

[1] The balances were translated into U.S. Dollars based on the applicable exchange rate as of the date of acquisition, December 23, 2015.

[2] The measurement period adjustments were mainly due to the finalization of the valuations of the tangible land, building and improvements, site improvements and tenant improvements, as well as valuations of intangible assets and liabilities typically present in an acquisition of a regional mall with existing tenancies. This resulted in a reallocation of the purchase price from Building to other tangible assets (site and tenant improvements), as well as to intangible assets, including above and below market leases, in-place leases and unamortized lease origination costs.