ACQUISITIONS - Unaudited Supplement to Pro Forma Operating Data (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Business Acquisition [Line Items]
Pro forma revenues	$ 209,499	$ 202,346	$ 609,865	$ 612,171
Pro forma (loss) income from continuing operations	(13,150)	36,319	(99,704)	63,158
Pro forma loss from discontinued operations	(401)	(9,766)	(12,211)	(38,431)
Pro forma net (loss) income attributable to DDR common shareholders	$ (26,903)	$ 30,290	$ (133,598)	$ 5,677
Basic earnings per share data:
(Loss) income from continuing operations attributable to DDR common shareholders	$ (0.09)	$ 0.14	$ (0.42)	$ 0.16
Loss from discontinued operations attributable to DDR common shareholders	$ 0.00	$ (0.03)	$ (0.04)	$ (0.14)
Net (loss) income attributable to DDR common shareholders	$ (0.09)	$ 0.11	$ (0.46)	$ 0.02
Diluted earnings per share data:
(Loss) income from continuing operations attributable to DDR common shareholders	$ (0.09)	$ 0.14	$ (0.42)	$ 0.08
Loss from discontinued operations attributable to DDR common shareholders	$ 0.00	$ (0.03)	$ (0.04)	$ (0.14)
Net (loss) income attributable to DDR common shareholders	$ (0.09)	$ 0.11	$ (0.46)	$ (0.06)

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Business acquisition pro forma income loss from discontinued operations before changes in accounting and extraordinary items net of tax per share basic.

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No definition available.

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Business acquisitions pro forma income loss from discontinuing operations before changes in accounting and extraordinary items net of tax.

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No definition available.

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma income from continuing operations before changes in accounting and extraordinary items, net of tax effect, for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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