Borrowings (Summary Of Notes Payable) (Details) - USD ($) $ in Thousands						12 Months Ended
		Jun. 26, 2017	Dec. 29, 2016	Aug. 31, 2016	Mar. 03, 2016	Dec. 31, 2017		Dec. 31, 2016
Debt Instrument [Line Items]
Contractual facility						$ 271,732		$ 266,134
Balance Gross						134,501		148,535
Balance Net						130,525	[1]	143,614	[2]
Deferred financing costs, net						$ 4,000		$ 4,900
Trust Preferred Securities [Member]
Debt Instrument [Line Items]
Maturity date						Apr. 30, 2027		Apr. 30, 2027
Contractual facility						$ 27,913		$ 27,913
Balance Gross						27,913		27,913
Balance Net						$ 27,554	[1]	$ 27,340	[2]
Stated interest rate						5.38%		4.89%
Effective interest rate						5.38%	[3]	5.20%	[4]
US Bank Of America Credit Facility [Member]
Debt Instrument [Line Items]
Maturity date						Nov. 28, 2019		Nov. 28, 2019
Contractual facility					$ 55,000	$ 55,000		$ 55,000
Balance Gross						31,000		39,950
Balance Net						$ 31,000	[1]	$ 39,759	[2]
Stated interest rate						4.57%		3.27%
Effective interest rate						4.57%	[3]	3.90%	[4]
US Bank Of America Line Of Credit [Member]
Debt Instrument [Line Items]
Maturity date						Oct. 31, 2019		Oct. 31, 2017
Contractual facility						$ 5,000		$ 5,000
Stated interest rate						4.57%		3.77%
Effective interest rate						4.57%	[3]	3.77%	[4]
US Cinema 1, 2, 3 Term Loan And Line Of Credit [Member]
Debt Instrument [Line Items]
Maturity date						Sep. 01, 2019	[5]	Sep. 01, 2019	[6]
Contractual facility				$ 15,000		$ 19,500	[5]	$ 19,901	[6]
Balance Gross						19,500	[5]	19,901	[6]
Balance Net						$ 19,105	[1],[5]	$ 19,356	[2],[6]
Stated interest rate						3.25%	[5]	3.25%	[6]
Effective interest rate						3.25%	[3],[5]	3.25%	[4],[6]
Minetta and Orpheum Theatres Term Loan [Member]
Debt Instrument [Line Items]
Maturity date						Jun. 01, 2018	[5]	Jun. 01, 2018	[6]
Contractual facility						$ 7,500	[5]	$ 7,500	[6]
Balance Gross						7,500	[5]	7,500	[6]
Balance Net						$ 7,470	[1],[5]	$ 7,398	[2],[6]
Stated interest rate						4.13%	[5]	3.38%	[6]
Effective interest rate						4.13%	[3],[5]	3.38%	[4],[6]
U.S. Corporate Office Term Loan [Member]
Debt Instrument [Line Items]
Maturity date						Jan. 01, 2027	[5]	Jan. 01, 2027	[6]
Contractual facility						$ 9,719	[5]	$ 8,363	[6]
Balance Gross						9,719	[5]	8,363	[6]
Balance Net						$ 9,582	[1],[5]	$ 8,239	[2],[6]
Stated interest rate	[6]							4.64%
Effective interest rate						4.61%	[3],[5]	4.64%	[4],[6]
Debt increase		$ 1,500
Union Square Construction Financing [Member]
Debt Instrument [Line Items]
Maturity date						Dec. 29, 2019
Contractual facility			$ 57,500			$ 57,500
Balance Gross						8,000
Balance Net	[1]					$ 5,033
Stated interest rate						5.81%
Effective interest rate	[3]					5.81%
US Union Square Theatre Term Loan [Member]
Debt Instrument [Line Items]
Maturity date	[6]							Dec. 29, 2019
Contractual facility	[6]							$ 57,500
Balance Gross	[6]							8,000
Balance Net	[2],[6]							$ 4,751
Stated interest rate	[6]							4.52%
Effective interest rate	[4],[6]							4.52%
NAB Corporate Term Loan [Member]
Debt Instrument [Line Items]
Maturity date						Jun. 30, 2019	[7]	Jun. 30, 2019	[8]
Contractual facility						$ 51,970	[7]	$ 48,080	[8]
Balance Gross						30,869	[7]	28,558	[8]
Balance Net						$ 30,781	[1],[7]	$ 28,421	[2],[8]
Stated interest rate						3.66%	[7]	2.64%	[8]
Effective interest rate						3.66%	[3],[7]	2.64%	[4],[8]
Westpac Bank Corporate Credit Facility [Member]
Debt Instrument [Line Items]
Maturity date	[8]							Mar. 31, 2018
Contractual facility	[8]							$ 36,877
Balance Gross	[8]							8,350
Balance Net	[2],[8]							$ 8,350
Stated interest rate	[8]							3.80%
Effective interest rate	[4],[8]							3.80%
Westpac Bank Corporate (General/Non-construction) Credit Facility [Member]
Debt Instrument [Line Items]
Maturity date	[7]					Dec. 31, 2019
Contractual facility	[7]					$ 24,850
Stated interest rate	[7]					3.70%
Effective interest rate	[3],[7]					3.70%
Westpac Bank Corporate (Construction) Credit Facility [Member]
Debt Instrument [Line Items]
Maturity date	[7]					Dec. 31, 2019
Contractual facility	[7]					$ 12,780
Stated interest rate	[7]					3.70%
Effective interest rate	[3],[7]					3.70%

[1] Net of deferred financing costs amounting to $4.0 million.

[2] Net of deferred financing costs amounting to $4.9 million.

[3] Both interest rate derivatives associated with the Trust Preferred Securities and Bank of America Credit Facility expired in October 2017 so the effective interest rate no longer applies as of December 31, 2017.

[4] Effective interest rate includes the impact of interest rate derivatives hedging the interest rate risk associated with Trust Preferred Securities and Bank of America Credit Facility that were outstanding as of December 31, 2016.

[5] In June 2017 we received $1.5M in additional financing on our new U.S. Corporate Headquarters with Citizens Asset Finance, Inc. due to the reappraisal of the property.

[6] The loan for our Minetta & Orpheum Theatres was obtained from Santander Bank. The term loan for our Cinema 1,2,3 Theatre was refinanced during the third quarter of 2016 with Valley National Bank. The term loan, which is collateralized by our new U.S Corporate Headquarters office building, was obtained with Citizens Asset Finance, Inc. In December 2016, we successfully negotiated the construction financing for our Union Square redevelopment project, $8.0 million of which was advanced from the total construction loan limit of $57.5 million.

[7] The contractual facilities and outstanding balances of the FC-denominated borrowings were translated into U.S. dollars based on exchange rates as of December 31, 2017.

[8] The contractual facilities and outstanding balances of the FC-denominated borrowings were translated into U.S. dollar based on exchange rates as of December 31, 2016.