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Acquisitions - Additional Information (Detail) (Shopping Center Acquired [Member], Orange County [Member], CA [Member], USD $) In Millions, unless otherwise specified | 1 Months Ended
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Mar. 31, 2015 ShoppingCenter
Shopping Center Acquired [Member] | Orange County [Member] | CA [Member] |
Business Acquisition [Line Items] |
Business acquisitions value of acquired entity | $ 49.2 ddr_BusinessAcquisitionsValueOfAcquiredEntity / us-gaap_BusinessAcquisitionAxis = ddr_ShoppingCentersAcquiredMember / invest_InvestmentGeographicRegionAxis = ddr_OrangeCountyMember / us-gaap_StatementGeographicalAxis = stpr_CA
Number Of Real Estate Properties Acquired | 1 ddr_AcquisitionOfJointVenturePartnersOwnershipInterestInShoppingCenters / us-gaap_BusinessAcquisitionAxis = ddr_ShoppingCentersAcquiredMember / invest_InvestmentGeographicRegionAxis = ddr_OrangeCountyMember / us-gaap_StatementGeographicalAxis = stpr_CA
Ownership interest in joint venture | 80.00%ddr_OwnershipInterestOfJointVenturePartner / us-gaap_BusinessAcquisitionAxis = ddr_ShoppingCentersAcquiredMember / invest_InvestmentGeographicRegionAxis = ddr_OrangeCountyMember / us-gaap_StatementGeographicalAxis = stpr_CA

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- Definition Acquisition of joint venture partners ownership interest in shopping centers. + References No definition available. + Details
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- Definition Business acquisitions, value of acquired entity. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition The percentage of ownership of equity participation by the joint venture partner for the investee accounted for under the equity method of accounting. + References No definition available. + Details
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Namespace Prefix: | ddr_
Data Type: | num:percentItemType
Balance Type: | na
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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
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