Debt (Summary Of Notes Payable) (Details) $ in Thousands, NZD in Millions			9 Months Ended				12 Months Ended
		Mar. 03, 2016 USD ($)	Sep. 30, 2016 NZD		Sep. 30, 2016 USD ($)		Dec. 31, 2015 USD ($)
Debt Instrument [Line Items]
Contractual facility					$ 210,849		$ 207,075
Balance Gross					144,219		130,941
Balance Net					142,400	[1]	129,113	[2]
Deferred financing costs, net					$ 1,800		$ 1,800
Trust Preferred Securities [Member]
Debt Instrument [Line Items]
Maturity date			Apr. 30, 2027		Apr. 30, 2027		Apr. 30, 2027
Contractual facility					$ 27,913		$ 27,913
Balance Gross					27,913		27,913
Balance Net					$ 27,286	[1]	$ 27,125	[2]
Stated interest rate			4.76%		4.76%		4.32%
Effective interest rate					5.20%	[3]	5.20%	[4]
US Bank Of America Credit Facility [Member]
Debt Instrument [Line Items]
Maturity date			Nov. 28, 2019		Nov. 28, 2019		Nov. 28, 2019
Contractual facility		$ 55,000			$ 55,000		$ 55,000
Balance Gross					38,950		29,750
Balance Net					$ 38,699	[1]	$ 29,321	[2]
Stated interest rate			3.27%		3.27%		2.92%
Effective interest rate					3.90%	[3]	3.65%	[4]
US Bank Of America Line Of Credit [Member]
Debt Instrument [Line Items]
Maturity date			Oct. 31, 2017		Oct. 31, 2017		Oct. 31, 2017
Contractual facility					$ 5,000		$ 5,000
Balance Gross					1,000		2,500
Balance Net					$ 1,000	[1]	$ 2,500	[2]
Stated interest rate			3.45%		3.45%		3.42%
Effective interest rate					3.45%	[3]	3.42%	[4]
US Cinema 1, 2, 3 Term Loan [Member]
Debt Instrument [Line Items]
Maturity date			Sep. 01, 2019	[5]	Sep. 01, 2019	[5]	Jul. 01, 2016	[6]
Contractual facility					$ 20,000	[5]	$ 15,000	[6]
Balance Gross					20,000	[5]	15,000	[6]
Balance Net					$ 19,401	[1],[5]	$ 14,887	[2],[6]
Stated interest rate			3.25%	[5]	3.25%	[5]	3.75%	[6]
Effective interest rate					3.25%	[3],[5]	3.75%	[4],[6]
US Cinemas 1, ,2, 3 Line Of Credit [Member]
Debt Instrument [Line Items]
Maturity date	[6]						Jul. 01, 2016
Contractual facility	[6]						$ 6,000
Stated interest rate	[6]						3.75%
Effective interest rate	[4],[6]						3.75%
Minetta and Orpheum Theatres Loan [Member]
Debt Instrument [Line Items]
Maturity date			Jun. 01, 2018	[5]	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					$ 7,380	[1],[5]	$ 7,326	[2],[6]
Stated interest rate			3.31%	[5]	3.31%	[5]	3.00%	[6]
Effective interest rate					3.31%	[3],[5]	3.00%	[4],[6]
US Union Square Line Of Credit [Member]
Debt Instrument [Line Items]
Maturity date			Jun. 02, 2017	[5]	Jun. 02, 2017	[5]	Jun. 02, 2017	[6]
Contractual facility					$ 8,000	[5]	$ 8,000	[6]
Balance Gross					8,000	[5]	8,000	[6]
Balance Net					$ 7,937	[1],[5]	$ 7,858	[2],[6]
Stated interest rate			3.51%	[5]	3.51%	[5]	3.65%	[6]
Effective interest rate					3.51%	[3],[5]	3.65%	[4],[6]
National Australia Bank ("NAB") Corporate Term Loan [Member]
Debt Instrument [Line Items]
Maturity date			Jun. 28, 2019	[7]	Jun. 28, 2019	[7]	Jun. 30, 2019	[8]
Contractual facility					$ 50,986	[7]	$ 48,452	[8]
Balance Gross					30,285	[7]	26,594	[8]
Balance Net					$ 30,126	[1],[7]	$ 26,412	[2],[8]
Stated interest rate			2.62%	[7]	2.62%	[7]	3.06%	[8]
Effective interest rate					2.62%	[3],[7]	3.06%	[4],[8]
Westpac Corporate Credit Facility [Member]
Debt Instrument [Line Items]
Maturity date			Mar. 31, 2018	[7]	Mar. 31, 2018	[7]	Mar. 31, 2018	[8]
Contractual facility			NZD 50.0		$ 36,450	[7]	$ 34,210	[8]
Balance Gross					10,571	[7]	13,684	[8]
Balance Net					$ 10,571	[1],[7]	$ 13,684	[2],[8]
Stated interest rate			3.95%	[7]	3.95%	[7]	4.45%	[8]
Effective interest rate					3.95%	[3],[7]	4.45%	[4],[8]

[1] Net of deferred financing costs amounting to $1.8 million.

[2] The balance as of December 31, 2015 included the reclassification adjustment relating to netting of deferred financing costs amounting to $1.8 million, as discussed in Note 1 - Recently Adopted and Issued Accounting Pronouncements.

[3] 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 September 30, 2016.

[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, 2015.

[5] The loan for our Minetta & Orpheum Theatres was obtained from Santander Bank. The Union Square line of credit was obtained through East West Bank. We are currently in the process of negotiating a construction loan for our Union Square property that will pay-off this loan with East West Bank. The term loan for our Cinema 1,2,3 Theatre, which was previously provided by Santander Bank, was refinanced during the third quarter of 2016 with Valley National Bank. Refer below for further discussion.

[6] The loans for our Cinema 1,2,3 and Minetta & Orpheum Theatres were obtained from Bank of Santander. The Union Square line of credit was obtained through East West Bank.

[7] The contractual facilities and outstanding balances of the FC-denominated borrowings were translated into U.S. dollars based on the applicable exchange rates as of September 30, 2016.

[8] The contractual facilities and outstanding balances of the FC-denominated borrowings were translated into U.S. dollar based on the applicable exchange rates as of December 31, 2015.