Noncontrolling Interests (Summary Of Changes In Controlling And Non-controlling Stockholders’ Equity) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Noncontrolling Interest [Line Items]
Balance	[1]	$ 146,615
Net income		3,041	$ 2,224	[1]
Distributions to noncontrolling stockholders		(77)	(55)	[1]
Accumulated other comprehensive income (loss)		(13)	(16)
Balance		154,991
Reading International Inc. Stockholders Equity [Member]
Noncontrolling Interest [Line Items]
Balance		142,197	132,865
Net income		3,029	2,226
Increase in additional paid in capital		169	143
Treasury stock purchased		(672)
Contributions from noncontrolling stockholders - SHP
Distributions to noncontrolling stockholders
Accumulated other comprehensive income (loss)		5,861	6,340
Balance		150,584	141,574
Noncontrolling Interests [Member]
Noncontrolling Interest [Line Items]
Balance		4,418	4,331
Net income		12	(2)
Increase in additional paid in capital
Treasury stock purchased
Contributions from noncontrolling stockholders - SHP		41
Distributions to noncontrolling stockholders		(77)	(55)
Accumulated other comprehensive income (loss)		13	16
Balance		4,407	4,290
Total Stockholders' Equity [Member]
Noncontrolling Interest [Line Items]
Balance		146,615	137,196
Net income		3,041	2,224
Increase in additional paid in capital		169	143
Treasury stock purchased		(672)
Contributions from noncontrolling stockholders - SHP		41
Distributions to noncontrolling stockholders		(77)	(55)
Accumulated other comprehensive income (loss)		5,874	6,356
Balance		$ 154,991	$ 145,864

[1] Certain 2016 balances have been reclassified to conform to the 2017 presentation (see Note 2 - Summary of Significant Accounting Policies - Reclassifications).