Earnings Per Share (Calculation Of Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	[1]	Jun. 30, 2014	[1]
Earnings Per Share [Abstract]
Net income attributable to Reading International, Inc. common stockholders	$ 15,997	$ 4,759	$ 19,115		$ 4,542
Basic EPS attributable to Reading International, Inc. common shareholders	$ 0.69	$ 0.20	$ 0.82		$ 0.19
Diluted EPS attributable to Reading International, Inc. common shareholders	$ 0.68	$ 0.20	$ 0.81		$ 0.19
Weighted average shares of common stock – basic	23,272,918	23,471,776	23,275,860		23,480,429
Weighted average shares of common stock – dilutive	23,492,192	23,775,923	23,495,134		23,784,576

[1] Certain prior period amounts have been reclassified to conform to the current period presentation.