Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 1,259	$ 1,479	$ 9,493	$ 23,611
Foreign currency translation (loss) gain	(3,547)	1,791	(12,318)	10,192
Other	53	51	155	151
Comprehensive income	(2,235)	3,321	(2,670)	33,954
Less: net income attributable to noncontrolling interests	(38)	(98)	88	(66)
Less: comprehensive (loss) income attributable to noncontrolling interests	(5)	33	(15)	20
Comprehensive (loss) income attributable to Reading International, Inc.	$ (2,192)	$ 3,386	$ (2,743)	$ 34,000