Business Segments (Results Of Operations For Each Of Our Principal Business Segments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 segment	Jun. 30, 2013
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	$ 69,922	$ 69,642	$ 127,975	$ 129,209
Operating expense	52,192	53,825	98,957	102,529
Depreciation and amortization	3,773	3,540	7,488	7,419
General and administrative expense	1,463	1,015	2,535	1,905
Segment operating income	12,495	11,262	18,995	17,356
Number of reportable business segments			2
Cinema [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	65,854	64,659	119,278	119,429
Operating expense	51,647	53,008	97,387	100,956
Depreciation and amortization	2,817	2,525	5,613	5,285
General and administrative expense	1,203	801	2,101	1,571
Segment operating income	10,187	8,325	14,177	11,617
Real Estate [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	5,782	6,896	12,361	13,606
Operating expense	2,259	2,730	5,234	5,399
Depreciation and amortization	956	1,015	1,875	2,134
General and administrative expense	260	214	434	334
Segment operating income	2,308	2,937	4,818	5,739
Intersegment Eliminations [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	(1,714)	(1,913)	(3,664)	(3,826)
Operating expense	$ (1,714)	$ (1,913)	$ (3,664)	$ (3,826)