Unaudited Quarterly Financial Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended										12 Months Ended
	Dec. 31, 2016	[1]	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	[1]	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016		Dec. 31, 2015	[3]	Dec. 31, 2014	[3]
Quarterly Financial Data [Abstract]
Revenue	$ 67,451		$ 71,315	$ 66,918	$ 64,789	$ 66,691		$ 57,788	$ 72,802	$ 60,584	$ 270,473		$ 257,865	[2]	$ 255,242	[2]
Net income	354		3,917	2,922	2,224	3,595		328	16,006	3,102	9,417	[3]	23,031		25,278
Net income attributable to RDI common stockholders	$ 352		$ 3,855	$ 2,970	$ 2,226	$ 3,614		$ 381	$ 15,997	$ 3,118	$ 9,403		$ 23,110		$ 25,335	[4]
Basic earnings per share	$ 0.01		$ 0.17	$ 0.13	$ 0.09	$ 0.14		$ 0.02	$ 0.69	$ 0.14	$ 0.40		$ 0.99		$ 1.08	[4]
Diluted earnings per share	$ 0.02		$ 0.16	$ 0.13	$ 0.09	$ 0.14		$ 0.02	$ 0.68	$ 0.14	$ 0.40		$ 0.98		$ 1.07	[4]

[1] Fourth Quarter Results included the impact as a result of a change in accounting principle (see Note 2 - Summary of Significant Accounting Policies - Accounting Changes).

[2] Balances relating to Cinema segment included the restatement impact as a result of a change in accounting principle (see Note 2 - Summary of Significant Accounting Policies - Accounting Changes).

[3] Certain 2015 and 2014 balances included the restatement impact as a result of a change in accounting principle (see Note 2 - Summary of Significant Accounting Policies - Accounting Changes).

[4] 2015 and 2014 balances included the restatement impact as a result of a change in accounting principle (see Note 2 - Summary of Significant Accounting Policies - Accounting Changes).