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Disposition of Real Estate and Discontinued Operations - Operating Results Related to Assets Sold (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Discontinued Operations And Disposal Groups [Abstract]
Revenues		$ 14,069us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue
Expenses
Operating expenses		4,048us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense
Impairment charges	0ddr_ImpairmentsSoldAssetsOrAssetsHeldForSaleInDiscontinuedOperations	8,512ddr_ImpairmentsSoldAssetsOrAssetsHeldForSaleInDiscontinuedOperations
Interest, net		3,514us-gaap_DisposalGroupIncludingDiscontinuedOperationInterestExpense
Depreciation and amortization		5,678us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization
Total expenses, discontinued operations		21,752ddr_DisposalGroupIncludingDiscontinuedOperationExpenses
Loss from discontinued operations		(7,683)us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax
Gain on disposition of real estate, net of tax		10,695us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
Income from discontinued operations	$ 0us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax	$ 3,012us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax

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- Definition

Amount of total expenses attributable to the disposal group (discontinued operations), during the reporting period.

+ References

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Amount of write-down of assets recognized into earnings for assets that have been sold by the reporting entity included in discontinued operations.

+ References

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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.

+ References

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After tax income (loss) from operations of a business component (exclusive of any gain (loss) on disposal, or provision therefore) during the reporting period, until its disposal.

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Amount of depreciation and amortization attributable to disposal group.

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Amount of interest expense allocated to disposal group, including a discontinued operation.

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Amount of operating expenses attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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Amount of sales or other form of revenues attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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Amount of income (loss) from a disposal group, net of income tax before extraordinary items allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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