Restatement of Previously Issued Consolidated Financial Statements (Schedule Of Effects Of Restatement On The Consolidated Balance Sheet) (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable and accrued liabilities	$ 47,857		$ 43,828
Total current liabilities	151,904		127,083
Total liabilities	488,789		500,055
Retained earnings/(deficits)	(105,523)		(79,489)
Total Reading International, Inc. stockholders’ equity	6,529		33,087
Total stockholders' equity	6,066	$ 17,728	$ 32,996	$ 47,566	$ 50,972	$ 63,279
Previously Reported [Member]
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable and accrued liabilities	44,392
Total current liabilities	148,439
Total liabilities	485,324
Retained earnings/(deficits)	(102,058)
Total Reading International, Inc. stockholders’ equity	9,994
Total stockholders' equity	9,531
Revision of Prior Period, Adjustment [Member]
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable and accrued liabilities	3,465
Total current liabilities	3,465
Total liabilities	3,465
Retained earnings/(deficits)	(3,465)
Total Reading International, Inc. stockholders’ equity	(3,465)
Total stockholders' equity	$ (3,465)