Earnings (Loss) Per Share	12 Months Ended
	Dec. 31, 2021
Earnings (Loss) Per Share [Abstract]
Earnings (Loss) Per Share	NOTE 4 – EARNINGS (LOSS) PER SHARE The following table sets forth the computation of basic and diluted earnings (loss) per share and a reconciliation of the weighted average number of common and common equivalent shares outstanding for the three years ended December 31, 2021: (Dollars in thousands, except share and per share data) 2021 2020 2019Numerator: Net income (loss) attributable to Reading International, Inc. $ 31,921 $ (65,200) $ (26,429)Denominator: Weighted average shares of common stock – basic 21,801,719 21,749,155 22,631,754Weighted average dilutive impact of stock-based awards 605,097 466,356 152,368Weighted average shares of common stock – diluted 22,406,816 22,215,511 22,784,122Basic earnings (loss) per share $ 1.46 $ (3.00) $ (1.17)Diluted earnings (loss) per share $ 1.42 $ (3.00) $ (1.17)Awards excluded from diluted earnings (loss) per share 517,344 674,676 516,010 Outstanding awards of 674,676 for the year ended December 31, 2020, and 516,010 for the year ended December 31, 2019, were excluded from the computation of dilutive shares, as they were anti-dilutive because of the net loss from continuing operations.