Pension And Other Liabilities (Summary Of Other Liabilities Including Pension) (Details) - USD ($) $ in Thousands		Dec. 31, 2019		Jan. 01, 2019	Dec. 31, 2018		Dec. 31, 2017	Aug. 29, 2014
Pension And Other Liabilities [Abstract]
Liability for demolition and remediation costs	[1]	$ 2,745			$ 2,630
Lease liability	[2]				5,900
Accrued pension	[3]	684			684
Security deposit payable		114			84
Finance lease liabilities		93
Other		17			7
Other current liabilities		3,653			9,305
Straight-line rent liability					16,362
Accrued pension		4,469	[3]		4,670	[3]		$ 7,500
Lease make-good provision		6,667			5,614		$ 5,648
Environmental reserve		1,656			1,656
Lease liability	[2]	5,900
Operating lease liabilities		223,164
Deferred Revenue - Real Estate					32
Acquired leases		37			91
Finance lease liabilities		116
Other		9			506
Other non-current liabilities		$ 18,854		$ 12,898	$ 28,931

[1] Refer to Note 21 - Insurance Recoveries on Impairment and Related Losses due to Earthquake for details on the estimation of the demolition costs for our Courtenay Central parking structure.

[2] Represents the lease liability of the option associated with the ground lease purchase of the Village East Cinema. See below for more information.

[3] Represents the pension liability associated with the Supplemental Executive Retirement Plan explained below.