Consolidated Statements Of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues
Total revenues	$ 21,307	$ 49,228
Costs and expenses
Depreciation and amortization	(5,650)	(5,270)
General and administrative	(5,097)	(5,945)
Total costs and expenses	(35,284)	(56,267)
Operating income (loss)	(13,977)	(7,039)
Interest expense, net	(4,363)	(1,789)
Gain (loss) on sale of assets	46,545
Other income (expense)	1,641	(218)
Income (loss) before income tax expense and equity earnings of unconsolidated joint ventures	29,846	(9,046)
Equity earnings of unconsolidated joint ventures	(50)	78
Income (loss) before income taxes	29,796	(8,968)
Income tax benefit (expense)	(7,728)	3,013
Net income (loss)	22,068	(5,955)
Less: net income (loss) attributable to noncontrolling interests	3,103	(80)
Net income (loss) attributable to Reading International, Inc. common shareholders	$ 18,965	$ (5,875)
Basic earnings (loss) per share attributable to Reading International, Inc. shareholders	$ 0.87	$ (0.27)
Diluted earnings (loss) per share attributable to Reading International, Inc. shareholders	$ 0.86	$ (0.27)
Weighted average number of shares outstanding-basic	21,761,307	21,752,371
Weighted average number of shares outstanding-diluted	22,170,268	22,119,621
Cinema [Member]
Revenues
Total revenues	$ 18,115	$ 46,310
Costs and expenses
Total costs and expenses	(21,882)	(42,292)
Real Estate [Member]
Revenues
Total revenues	3,192	2,918
Costs and expenses
Total costs and expenses	$ (2,655)	$ (2,760)