Earnings (Loss) Per Share (Calculation Of Earnings (Loss) Per Share) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Earnings (Loss) Per Share [Abstract]
Net income (loss) from continuing operations	$ 4,135	$ 195	$ 3,468	$ (123)
Income from discontinued operations		44		120
Net income (loss) attributable to Reading International, Inc. common shareholders	$ 4,135	$ 239	$ 3,468	$ (3)
Earnings (loss) from continuing operations	$ 0.18	$ 0.01	$ 0.15	$ (0.01)
Earnings from discontinued operations, net	$ 0.00	$ 0.00	$ 0.00	$ 0.01
Basic earnings per share attributable to Reading International, Inc. shareholders	$ 0.18	$ 0.01	$ 0.15	$ 0.00
Earnings (loss) from continuing operations	$ 0.18	$ 0.01	$ 0.15	$ (0.01)
Earnings from discontinued operations, net	$ 0.00	$ 0.00	$ 0.00	$ 0.01
Diluted earnings per share attributable to Reading International, Inc. shareholders	$ 0.18	$ 0.01	$ 0.15	$ 0.00
Weighted average shares of common stock – basic	23,344,057	23,009,209	23,305,466	22,969,392
Weighted average shares of common stock – dilutive	23,447,250	23,177,815	23,408,659	22,969,392