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The amount of shares issued during the period upon the conversion of convertible securities.

No definition available.

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Debt instrument maturity month and year.

No definition available.

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Debt instruments maturity date, month and year.

No definition available.

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The amount of the extended additional maturity period for the revolving credit facility.

No definition available.

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Extended maturity month and year.

No definition available.

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Gross fees paid for revolving credit facilities and term loans.

No definition available.

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Notes issued which may not be redeemed prior to maturity and will not be subject to any sinking fund requirements.

No definition available.

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The exchange rate for senior convertible notes for which the premium was paid in common shares.

No definition available.

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Principal Amount of Senior Convertible Notes used as conversion basis.

No definition available.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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Amount of assets pledged to secure a debt instrument.

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States whether the entity was in compliance with the debt covenants throughout the reporting period, and describes facts and circumstances of any compliance failure.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Regulation S-X (SX)
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Description of minimum financial levels (for example, tangible net worth and working capital) and achievement of certain financial ratios (for example, working capital ratio and debt service coverage ratio), and adherence to certain clauses which generally require or restrict certain actions (for example, entering into a debt arrangement with equal or greater seniority, and selling or discontinuing a certain business segment or material subsidiary) to be in compliance with the covenant clauses of the debt agreement. May also include a discussion of the adverse consequences that would result if the entity violates or fails to satisfy the covenants.

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Contractual interest rate for funds borrowed, under the debt agreement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Maximum contractual interest rate for funds borrowed, under the debt agreement.

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Minimum contractual interest rate for funds borrowed, under the debt agreement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_DebtInstrumentLineItems
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Weighted average interest rate of debt outstanding.

No definition available.

Name:	us-gaap_DebtWeightedAverageInterestRate
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Data Type:	num:percentItemType
Balance Type:	na
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Identification of whether the entity has been in compliance with any credit facility debt covenants during the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Regulation S-X (SX)
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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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The cash inflow from borrowings supported by a written promise to pay an obligation that is uncollateralized (where debt is not backed by the pledge of collateral).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Carrying value as of the balance sheet date of uncollateralized debt obligation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=ddr_MortgagePayableMember
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Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
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Name:	us-gaap_LongtermDebtTypeAxis=ddr_SeniorConvertibleNotesMember
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Data Type:	na
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Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_UnsecuredDebtMember
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_LineOfCreditFacilityAxis=ddr_WellsFargoBankNationalAssociationAndPNCBankNationalAssociationMember
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_CreditFacilityAxis=ddr_TermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_DebtInstrumentAxis=ddr_ThreePointSixTwoFivePercentSeniorUnsecuredNotesDueFebruaryTwentyTwentyFiveMember
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