Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Consolidated Statements Of Comprehensive Income [Abstract]
Net income (loss)	$ (19,352)	$ 801	$ (48,195)	$ 954
Foreign currency translation gain (loss)	3,478	(6,598)	(1,574)	(7,355)
Gain (loss) on cash flow hedges	63	(20)	(142)	(211)
Others	47	51	131	159
Comprehensive income (loss)	(15,764)	(5,766)	(49,780)	(6,453)
Less: net income (loss) attributable to noncontrolling interests	(124)	(50)	(389)	(103)
Less: comprehensive income (loss) attributable to noncontrolling interests	(2)	(2)	(7)	(2)
Comprehensive income (loss) attributable to Reading International, Inc.	$ (15,638)	$ (5,714)	$ (49,384)	$ (6,348)