Earnings Per Share (Computation Of Basic And Dilutes Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Earnings Per Share [Abstract]
Net income attributable to RDI common stockholders	$ 2,970	$ 15,997	$ 5,199	$ 19,115
Weighted average number of common stock – basic	23,334,892	23,272,918	23,334,892	23,275,860
Weighted average dilutive impact of awards	209,067	219,274	209,067	219,274
Weighted average number of common stock – diluted	23,543,959	23,492,192	23,543,959	23,495,134
Basic EPS attributable for RDI common stockholders	$ 0.13	$ 0.69	$ 0.22	$ 0.82
Diluted EPS attributable to RDI common stockholders	$ 0.13	$ 0.68	$ 0.22	$ 0.81
Awards excluded from diluted EPS	265,327	100,000	265,327	100,000