Debt (Summary Of Notes Payable) (Details) $ in Thousands, NZD in Millions	9 Months Ended				12 Months Ended
	Sep. 30, 2015 NZD		Sep. 30, 2015 USD ($)		Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
Notes payable			$ 145,718		$ 164,036
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
Notes payable			$ 27,913		$ 27,913
Stated interest rate	4.30%		4.30%		4.23%
Effective interest rate			5.20%	[1]	5.20%	[2]
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
Notes payable			$ 29,750		$ 29,750
Stated interest rate	2.69%		2.69%		2.67%
Effective interest rate			3.65%	[1]	3.65%	[2]
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
Stated interest rate	3.19%		3.19%		3.17%
Effective interest rate			3.19%	[1]	3.17%	[2]
US Cinema 1, 2, 3 Term Loan [Member]
Debt Instrument [Line Items]
Maturity date	Jul. 01, 2016		Jul. 01, 2016		Jul. 01, 2016
Contractual facility			$ 15,000		$ 15,000
Notes payable			$ 15,000		$ 15,000
Stated interest rate	3.75%		3.75%		3.69%
Effective interest rate			3.75%	[1]	3.69%	[2]
US Cinemas 1, ,2, 3 Line Of Credit [Member]
Debt Instrument [Line Items]
Maturity date	Jul. 01, 2016		Jul. 01, 2016		Jul. 01, 2016
Contractual facility			$ 6,000		$ 6,000
Stated interest rate	3.75%		3.75%		3.69%
Effective interest rate			3.69%	[1]	3.69%	[2]
Minetta and Orpheum Theatres Loan [Member]
Debt Instrument [Line Items]
Maturity date	Jun. 01, 2018		Jun. 01, 2018		Jun. 01, 2018
Contractual facility			$ 7,500		$ 7,500
Notes payable			$ 7,500		$ 7,500
Stated interest rate	3.00%		3.00%		2.94%
Effective interest rate			3.00%	[1]	2.94%	[2]
US Union Square Line Of Credit [Member]
Debt Instrument [Line Items]
Maturity date	Jun. 02, 2017		Jun. 02, 2017
Contractual facility			$ 8,000
Notes payable			$ 8,000
Stated interest rate	3.28%		3.28%
Effective interest rate			3.28%	[1]
US Union Square Theatre Term Loan [Member]
Debt Instrument [Line Items]
Maturity date					May 01, 2015
Contractual facility					$ 7,500
Notes payable					$ 6,468
Stated interest rate					5.92%
Effective interest rate					5.92%	[2]
NAB Australian Corporate Term Loan [Member]
Debt Instrument [Line Items]
Maturity date	Jun. 30, 2019	[3]	Jun. 30, 2019	[3]	Jun. 30, 2019	[4]
Contractual facility			$ 39,663	[3]	$ 47,403	[4]
Notes payable			$ 39,663	[3]	$ 47,403	[4]
Stated interest rate	4.45%	[3]	4.45%	[3]	5.04%	[4]
Effective interest rate			7.85%	[1],[3]	7.85%	[2],[4]
NAB Australian Corporate Revolver [Member]
Debt Instrument [Line Items]
Maturity date	Jun. 30, 2019	[3]	Jun. 30, 2019	[3]	Jun. 30, 2019	[4]
Contractual facility			$ 7,020	[3]	$ 8,173	[4]
Notes payable					$ 8,173	[4]
Stated interest rate	4.45%	[3]	4.45%	[3]	5.04%	[4]
Effective interest rate			4.45%	[1],[3]	5.04%	[2],[4]
New Zealand Westpac Corporate Credit Facility [Member]
Debt Instrument [Line Items]
Maturity date	Mar. 31, 2018	[3]	Mar. 31, 2018	[3]	Mar. 31, 2015	[4]
Contractual facility	NZD 50.0		$ 31,950	[3]	$ 21,829	[4]
Notes payable			$ 17,892	[3]	$ 21,829	[4]
Stated interest rate	4.65%	[3]	4.65%	[3]	5.80%	[4]
Effective interest rate			4.65%	[1],[3]	5.80%	[2],[4]

[1] Effective interest rate includes the impact of interest rate derivatives hedging the interest rate risk associated with Trust Preferred Securities, Bank of America Credit Facility and NAB Corporate Term Loan that were outstanding as of September 30, 2015

[2] Effective interest rate includes the impact of interest rate derivatives hedging interest rate risk associated with Trust Preferred Securities, Bank of America Credit Facility and NAB Corporate Term Loan.

[3] 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, 2015.

[4] 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, 2014.