Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2019	May 07, 2019
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
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
Entity Emerging Growth Company	false
Entity Small Business	false
Class A [Member]
Entity Common Stock, Shares Outstanding		21,282,169
Class B [Member]
Entity Common Stock, Shares Outstanding		1,680,590