Property And Equipment (Construction-In-Progress Balance) (Details) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
		Jun. 30, 2019	Jun. 30, 2019
Property, Plant and Equipment [Line Items]
Balance			$ 3,478
Balance		$ 6,885	6,885
Capitalized interest		1,500	2,700
Operating And Investing Properties [Member]
Property, Plant and Equipment [Line Items]
Balance			64,011
Additions during the period	[1]		24,626
Completed during the period			(6,224)
Foreign currency translation			(25)
Balance		82,388	82,388
Operating And Investing Properties [Member] | Union Square Development [Member]
Property, Plant and Equipment [Line Items]
Balance			55,634
Additions during the period	[1]		14,282
Completed during the period
Foreign currency translation
Balance		69,916	69,916
Operating And Investing Properties [Member] | Courtenay Central Development [Member]
Property, Plant and Equipment [Line Items]
Balance			5,571
Additions during the period	[1]		398
Completed during the period
Foreign currency translation
Balance		5,969	5,969
Operating And Investing Properties [Member] | Cinema Developments And Improvements [Member]
Property, Plant and Equipment [Line Items]
Balance			1,664
Additions during the period	[1]		8,842
Completed during the period			(6,129)
Foreign currency translation			7
Balance		4,384	4,384
Operating And Investing Properties [Member] | Other Real Estate Projects [Member]
Property, Plant and Equipment [Line Items]
Balance			1,142
Additions during the period	[1]		1,104
Completed during the period			(95)
Foreign currency translation			(32)
Balance		$ 2,119	$ 2,119

[1] Includes capitalized interest of $1.5 million and $2.7 million for the quarter and six months ended June 30, 2019.