Income Taxes (Schedule Of Income (Loss) Before Income Tax Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Line Items]
Income before income tax expense and equity earnings of unconsolidated joint ventures and entities	$ 14,844	$ 12,718	$ 2,282
Net income attributable to noncontrolling interests	57	(104)	492
Equity earnings and gain on sale of unconsolidated subsidiary	1,015	1,369	1,621
Gain on sale of discontinued operation			(320)
Income (loss) before income tax expense	15,916rdi_IncomeLossBeforeIncomeTaxes	13,983rdi_IncomeLossBeforeIncomeTaxes	3,990rdi_IncomeLossBeforeIncomeTaxes
United States [Member]
Income Tax Disclosure [Line Items]
Income before income tax expense and equity earnings of unconsolidated joint ventures and entities	2,778	8,745	836
Net income attributable to noncontrolling interests	200	24	578
Equity earnings and gain on sale of unconsolidated subsidiary		(1)	27
Foreign [Member]
Income Tax Disclosure [Line Items]
Income before income tax expense and equity earnings of unconsolidated joint ventures and entities	12,066	3,973	1,446
Net income attributable to noncontrolling interests	(143)	(128)	(86)
Equity earnings and gain on sale of unconsolidated subsidiary	1,015	1,370	1,594
Gain on sale of discontinued operation			$ (405)

Income Loss Before Income Taxes

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Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component.

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Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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Amount of Net Income (Loss) attributable to noncontrolling interest.

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