Property And Equipment (Construction-In-Progress Balance) (Details) - USD ($)		3 Months Ended	9 Months Ended
		Sep. 30, 2018	Sep. 30, 2018
Property, Plant and Equipment [Line Items]
Balance			$ 26,000,000
Balance		$ 5,351,000	5,351,000
Capitalized interest		720,000	2,100,000
Operating And Investing Properties [Member]
Property, Plant and Equipment [Line Items]
Balance			60,329,000
Additions during the period	[1]		35,935,000
Completed during the period			(35,849,000)
Foreign currency translation			(839,000)
Balance		59,576,000	59,576,000
Operating And Investing Properties [Member] | Union Square Development [Member]
Property, Plant and Equipment [Line Items]
Balance			29,223,000
Additions during the period	[1]		20,268,000
Completed during the period
Foreign currency translation
Balance		49,491,000	49,491,000
Operating And Investing Properties [Member] | Newmarket Property Development [Member]
Property, Plant and Equipment [Line Items]
Balance			370,000
Additions during the period	[1]		561,000
Completed during the period			(636,000)
Foreign currency translation			(51,000)
Balance		244,000	244,000
Operating And Investing Properties [Member] | Courtenay Central Development [Member]
Property, Plant and Equipment [Line Items]
Balance			4,676,000
Additions during the period	[1]		101,000
Completed during the period
Foreign currency translation			(309,000)
Balance		4,468,000	4,468,000
Operating And Investing Properties [Member] | Cinema Developments And Improvements [Member]
Property, Plant and Equipment [Line Items]
Balance			19,015,000
Additions during the period	[1]		11,441,000
Completed during the period			(26,705,000)
Foreign currency translation			(95,000)
Balance		3,656,000	3,656,000
Operating And Investing Properties [Member] | Other Real Estate Projects [Member]
Property, Plant and Equipment [Line Items]
Balance			7,045,000
Additions during the period	[1]		3,564,000
Completed during the period			(8,508,000)
Foreign currency translation			(384,000)
Balance		$ 1,717,000	$ 1,717,000

[1] Includes capitalized interest of $720,000 and $2.1 million for the quarter and nine months ended September 30, 2018, respectively.