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Investments in and Advances to Joint Ventures - Summary of Company's Equity Method Joint Ventures Included in Investments in and Advances (Detail) | 12 Months Ended
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Dec. 31, 2014
DDR Domestic Retail Fund I [Member] |
Schedule Of Equity Method Investments [Line Items] |
Effective Ownership Percentage | 20.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = ddr_DdrDomesticRetailFundOneMember
Equity Method Investment, Assets Owned | 56 grocery-anchored retail centers in several states
DDR-SAU Retail Fund LLC [Member] |
Schedule Of Equity Method Investments [Line Items] |
Effective Ownership Percentage | 20.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = ddr_DdrSuRetailFundLlcMember
Equity Method Investment, Assets Owned | 23 grocery-anchored retail centers in several states
DDRTC Core Retail Fund LLC [Member] |
Schedule Of Equity Method Investments [Line Items] |
Effective Ownership Percentage | 15.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = ddr_DdrtcCoreRetailFundMember
Equity Method Investment, Assets Owned | 26 shopping centers in several states
BRE DDR Retail Holdings III [Member] |
Schedule Of Equity Method Investments [Line Items] |
Effective Ownership Percentage | 5.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = ddr_BREDDRRetailHoldingsIIIMember
Equity Method Investment, Assets Owned | 70 shopping centers in several states
Other Joint Venture Interests [Member] |
Schedule Of Equity Method Investments [Line Items] |
Equity Method Investment, Assets Owned | 13 shopping centers in several states and a management company
Coventry II Fund [Member] |
Schedule Of Equity Method Investments [Line Items] |
Effective Ownership Percentage | 20.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = ddr_CoventryTwoFundMember
Equity Method Investment, Assets Owned | Three shopping centers in three states
Minimum [Member] | Other Joint Venture Interests [Member] |
Schedule Of Equity Method Investments [Line Items] |
Effective Ownership Percentage | 25.25%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = ddr_OtherJointVentureInterestsMember
Maximum [Member] | Other Joint Venture Interests [Member] |
Schedule Of Equity Method Investments [Line Items] |
Effective Ownership Percentage | 79.45%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = ddr_OtherJointVentureInterestsMember

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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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