Earnings (Loss) Per Share (Computation Of Basic And Diluted Earnings (Loss) Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Earnings (Loss) Per Share [Abstract]
Net income (loss) attributable to Reading International, Inc.	$ 2,270	$ (2,667)	$ (5,877)	$ (7,423)
Weighted average shares of common stock – basic	22,757,618	22,708,206	22,738,180	22,586,019
Weighted average dilutive impact of awards	1,084,887
Weighted average shares of common stock – diluted	23,842,505	22,708,206	22,738,180	22,586,019
Basic earnings (loss) per share	$ 0.10	$ (0.12)	$ (0.26)	$ (0.33)
Diluted earnings (loss) per share	$ 0.10	$ (0.12)	$ (0.26)	$ (0.33)
Awards excluded from diluted earnings (loss) per share	3,949,445	3,696,662	3,949,445	3,696,662