Earnings (Loss) Per Share (Computation Of Basic And Diluted Earnings (Loss) Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Earnings (Loss) Per Share [Abstract]
Net income (loss) attributable to Reading International, Inc.	$ (14,140)	$ (35,301)	$ (30,673)
Weighted average shares of common stock – basic	22,652,270	22,401,662	22,222,635
Weighted average shares of common stock – diluted	22,652,270	22,401,662	22,222,635
Basic earnings (loss) per share	$ (0.62)	$ (1.58)	$ (1.38)
Diluted earnings (loss) per share	$ (0.62)	$ (1.58)	$ (1.38)
Awards excluded from diluted earnings (loss) per share	3,696,662	1,047,592	1,329,795