Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings (Loss) Per Share [Abstract]
Net income (loss) attributable to Reading International, Inc. common shareholders	$ (36,184)	$ 31,921	$ (65,200)
Weighted average number of common stock – basic	22,020,921	21,801,719	21,749,155
Weighted average dilutive impact of awards	935,324	605,097	466,356
Weighted average number of common stock – diluted	22,956,245	22,406,816	22,215,511
Basic earnings (loss) per share	$ (1.64)	$ 1.46	$ (3.00)
Diluted earnings (loss) per share	$ (1.64)	$ 1.42	$ (3.00)
Awards excluded from diluted earnings (loss) per share	327,498	517,344	674,676