Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2019	Nov. 08, 2019
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Entity Registrant Name	READING INTERNATIONAL INC
Entity Central Index Key	0000716634
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Class A [Member]
Title of 12(b) Security	Class A Common Stock, $0.01 par value
Trading Symbol	RDI
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		20,404,573
Class B [Member]
Title of 12(b) Security	Class B Common Stock, $0.01 par value
Trading Symbol	RDIB
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		1,680,590