Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Consolidated Statements Of Comprehensive Income [Abstract]
Net income (loss)	$ (2,097)	$ 3,104
Foreign currency translation gain (loss)	1,526	(803)
Gain (loss) on cash flow hedges	(69)
Others	53	50
Comprehensive income (loss)	(587)	2,351
Less: net income (loss) attributable to noncontrolling interests	(16)	22
Less: comprehensive income (loss) attributable to noncontrolling interests	1	(3)
Comprehensive income (loss) attributable to Reading International, Inc.	$ (572)	$ 2,332