Consolidated Statements Of Income - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017		Jun. 30, 2018	Jun. 30, 2017	[1]
Revenue
Revenue	$ 84,222	$ 72,413		$ 160,043	$ 141,867
Costs and expenses
Cinema	(60,306)	(52,139)		(115,254)	(103,921)
Real estate	(2,551)	(2,342)		(4,935)	(4,377)
Depreciation and amortization	(5,626)	(4,054)		(10,877)	(7,987)
General and administrative	(7,165)	(6,118)		(14,761)	(12,291)
Total costs and expenses	(75,648)	(64,653)		(145,827)	(128,576)
Operating income	8,574	7,760		14,216	13,291
Interest expense, net	(1,790)	(1,787)		(3,384)	(3,647)
Gain on sale of assets		9,417			9,417
Gain on insurance recoveries		9,217			9,217
Other income (expense)	(61)	27		(143)	848
Income before income tax expense and equity earnings of unconsolidated joint ventures	6,723	24,634		10,689	29,126
Equity earnings of unconsolidated joint ventures	331	264		588	518
Income before income taxes	7,054	24,898		11,277	29,644
Income tax expense	(1,953)	(5,846)		(3,108)	(7,549)
Net Income	5,101	19,052	[1]	8,169	22,095
Less: net income attributable to noncontrolling interests	102	20	[1]	124	32
Net income attributable to Reading International, Inc. common shareholders	$ 4,999	$ 19,032		$ 8,045	$ 22,063
Basic earnings per share attributable to Reading International, Inc. shareholders	$ 0.22	$ 0.82		$ 0.35	$ 0.95
Diluted earnings per share attributable to Reading International, Inc. shareholders	$ 0.22	$ 0.81		$ 0.35	$ 0.94
Weighted average number of shares outstanding-basic	22,933,589	23,148,995		22,979,436	23,168,703
Weighted average number of shares outstanding-diluted	23,147,373	23,396,143		23,193,220	23,415,851
Cinema [Member]
Revenue
Revenue	$ 80,183	$ 67,443		$ 152,438	$ 134,003
Real Estate Revenue [Member]
Revenue
Revenue	$ 4,039	$ 4,970		$ 7,605	$ 7,864

[1] Certain prior year balances have been reclassified to conform to the 2018 presentation (see Note 2 - Summary of Significant Accounting Policies - Reclassifications).