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Transactions with Related Parties - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 6 Months Ended | 12 Months Ended | 0 Months Ended
--- | --- | --- | ---
Jun. 30, 2012 Director | Dec. 31, 2010 ShoppingCenter | Apr. 28, 2014
Related Party Transaction [Line Items] |  |  |
Number of board members to be nominated by investor |  |  | 2 ddr_NumberOfBoardMembersToBeNominatedByInvestor
Mezzanine loan |  | $ 31.7 us-gaap_RelatedPartyTransactionAmountsOfTransaction |
Number of shopping centers |  | 6 ddr_NumberOfShoppingCenters |
Related transactions, interest rate |  | 10.00%us-gaap_RelatedPartyTransactionRate |
Number of Board of directors positions retained | 2 ddr_NumberOfDirectorsRetained |  |
Interest income from related party | 1.5 us-gaap_InterestIncomeRelatedParty |  |
Parent Company |  |  |
Related Party Transaction [Line Items] |  |  |
Ownership interest in joint venture |  |  | 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Proceeds from sale of unconsolidated joint venture assets |  |  | $ 343.6 us-gaap_EquityMethodInvestmentNetSalesProceeds / dei_LegalEntityAxis = us-gaap_ParentCompanyMember

X
- Definition Number of board members to be nominated By investor. + References No definition available. + Details
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- Definition Number of directors retained. + References No definition available. + Details
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- Definition Number of shopping centers. + References No definition available. + Details
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- Definition This item represents the amount of net sales proceeds received on disposal of an equity method investment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 35 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=35687916&loc=d3e32847-111569 + Details
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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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- Definition Amount of interest income earned from interest-bearing assets owed to the entity by related party. + References No definition available. + Details
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- Definition Amount of transactions with related party during the financial reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
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- Details
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- Definition Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties. + References No definition available. + Details
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- Details
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