Consolidated Statements Of Income - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues
Total revenues	$ 139,060,000	$ 77,862,000	$ 276,768,000
Costs and expenses
Depreciation and amortization	(22,746,000)	(22,317,000)	(22,747,000)
General and administrative	(25,100,000)	(16,998,000)	(25,395,000)
Impairment of long-lived assets	0	(217,000)	0
Total costs and expenses	(180,853,000)	(139,175,000)	(267,645,000)
Operating income (loss)	(41,793,000)	(61,313,000)	9,123,000
Interest expense, net	(13,688,000)	(9,354,000)	(7,904,000)
Gain (loss) on sale of assets	92,219,000	(1,000)	(2,000)
Other income (expense)	3,762,000	293,000	325,000
Income (loss) before income tax expense and equity earnings of unconsolidated joint ventures	40,500,000	(70,375,000)	1,542,000
Equity earnings of unconsolidated joint ventures	258,000	(449,000)	792,000
Income (loss) before income taxes	40,758,000	(70,824,000)	2,334,000
Income tax benefit (expense)	(5,944,000)	4,967,000	(28,837,000)
Net income (loss)	34,814,000	(65,857,000)	(26,503,000)
Less: net income (loss) attributable to noncontrolling interests	2,893,000	(657,000)	(74,000)
Net income (loss) attributable to Reading International, Inc.	$ 31,921,000	$ (65,200,000)	$ (26,429,000)
Basic earnings (loss) per share	$ 1.46	$ (3.00)	$ (1.17)
Diluted earnings (loss) per share	$ 1.42	$ (3.00)	$ (1.17)
Weighted average number of shares outstanding-basic	21,801,719	21,749,155	22,631,754
Weighted average number of shares outstanding-diluted	22,406,816	22,215,511	22,784,122
Cinema [Member]
Revenues
Total revenues	$ 126,812,000	$ 67,014,000	$ 262,189,000
Costs and expenses
Total costs and expenses	(122,901,000)	(91,065,000)	(210,050,000)
Real Estate [Member]
Revenues
Total revenues	12,248,000	10,848,000	14,579,000
Costs and expenses
Total costs and expenses	$ (10,106,000)	$ (8,578,000)	$ (9,453,000)