Earnings Per Share (Computation Of Basic And Dilutes Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015		Sep. 30, 2014
Earnings Per Share [Abstract]
Net income attributable to RDI common stockholders	$ 381	$ 3,939	$ 19,496	[1]	$ 8,481
Weighted average number of common stock – basic	23,287,449	23,380,728	23,283,405	[1]	23,457,050
Weighted average dilutive impact of awards	194,813	297,495	194,813		297,495
Weighted average number of common stock – diluted	23,482,262	23,678,223	23,478,218	[1]	23,754,545
Basic EPS attributable for RDI common stockholders	$ 0.02	$ 0.17	$ 0.84	[1]	$ 0.36
Diluted EPS attributable to RDI common stockholders	$ 0.02	$ 0.17	$ 0.83	[1]	$ 0.36
Awards excluded from diluted EPS	100,000	218,750	100,000		248,750

[1] Certain prior period amounts have been reclassified to conform to the current period presentation.