Consolidated Statements Of Stockholders' Equity - USD ($) $ in Thousands	Common Shares [Member] Class A [Member]	Common Shares [Member] Class B [Member]	Additional Paid-In Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Treasury Shares [Member]	Accumulated Other Comprehensive Income/(Loss) [Member]	Reading International Inc. Stockholders' Equity [Member]	Noncontrolling Interests [Member]	Class A [Member]	Class B [Member]	Total
Balance at Dec. 31, 2020	$ 231	$ 17	$ 149,979	$ (44,553)		$ 12,502	$ 77,769	$ 3,404			$ 81,173
Balance, shares at Dec. 31, 2020	20,069,000	1,680,000			(40,407,000)
Net income (loss)				31,921			31,921	2,893			34,814
Other comprehensive income, net						(7,620)	(7,620)	1			(7,619)
Share-based compensation expense			2,152				2,152				2,152
Restricted Stock Units	$ 2		(150)				(148)				(148)
Restricted Stock Units, shares	191,000
Contributions from noncontrolling stockholders								3			3
Distributions to noncontrolling stockholders								(5,315)			(5,315)
Balance at Dec. 31, 2021	$ 233	$ 17	151,981	(12,632)		4,882	104,074	986			105,060
Balance, shares at Dec. 31, 2021	20,260,000	1,680,000			(40,407,000)
Net income (loss)				(36,184)			(36,184)	(476)			(36,660)
Other comprehensive income, net						(6,839)	(6,839)	(4)			(6,843)
Share-based compensation expense			1,888				1,888				1,888
Restricted Stock Units	$ 2		(85)				(83)				(83)
Restricted Stock Units, shares	150,000
Contributions from noncontrolling stockholders								4			4
Distributions to noncontrolling stockholders								(87)			(87)
Balance at Dec. 31, 2022	$ 235	$ 17	153,783	(48,816)	$ (40,407)	(1,957)	62,856	423			63,279
Balance, shares at Dec. 31, 2022	20,410,000	1,680,000							20,412,185	1,680,590
Net income (loss)				(30,673)			(30,673)	(512)			(31,185)
Other comprehensive income, net						(716)	(716)	(1)			(717)
Share-based compensation expense			1,864				1,864				1,864
Restricted Stock Units	$ 2		(245)				(243)				(243)
Restricted Stock Units, shares	254,000
Balance at Dec. 31, 2023	$ 237	$ 17	$ 155,402	$ (79,489)		$ (2,673)	$ 33,087	$ (91)			$ 32,996
Balance, shares at Dec. 31, 2023	20,664,000	1,680,000			(40,407,000)				20,666,516	1,680,590