Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Aug. 07, 2018
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q2
Entity Registrant Name	READING INTERNATIONAL INC
Trading Symbol	rdi
Entity Central Index Key	0000716634
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Class A [Member]
Entity Common Stock, Shares Outstanding		21,309,702
Class B [Member]
Entity Common Stock, Shares Outstanding		1,680,590