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Mortgage Loans on Real Estate (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014
Mortgage Loans On Real Estate [Line Items] |
Prior Liens | $ 1,355,113 us-gaap_MortgageLoansOnRealEstatePriorLiens1
Face Amount of Mortgages | 374,490 us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages
Carrying Amount of Mortgages | 357,754 us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages
Principal Amount of Loans Subject to Delinquent Principal or Interest | 20,149 us-gaap_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans
Senior Loans and Mezzanine Loans [Member] |
Mortgage Loans On Real Estate [Line Items] |
Prior Liens | 118,316 us-gaap_MortgageLoansOnRealEstatePriorLiens1 / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_SeniorLoansAndMezzanineLoansMember
Face Amount of Mortgages | 74,490 us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_SeniorLoansAndMezzanineLoansMember
Carrying Amount of Mortgages | 52,444 us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_SeniorLoansAndMezzanineLoansMember
Principal Amount of Loans Subject to Delinquent Principal or Interest | 20,149 us-gaap_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_SeniorLoansAndMezzanineLoansMember
Mezzanine Loans | Retail | Borrower C [Member] |
Mortgage Loans On Real Estate [Line Items] |
Interest Rate | 10.00%us-gaap_MortgageLoansOnRealEstateInterestRate / us-gaap_CounterpartyNameAxis = ddr_BorrowerCMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_RetailMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Final Maturity Date | Nov-22
Periodic Payment Terms | I
Prior Liens | 59,000 us-gaap_MortgageLoansOnRealEstatePriorLiens1 / us-gaap_CounterpartyNameAxis = ddr_BorrowerCMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_RetailMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Face Amount of Mortgages | 4,500 us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages / us-gaap_CounterpartyNameAxis = ddr_BorrowerCMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_RetailMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Carrying Amount of Mortgages | 4,539 us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages / us-gaap_CounterpartyNameAxis = ddr_BorrowerCMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_RetailMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Principal Amount of Loans Subject to Delinquent Principal or Interest | 0 us-gaap_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans / us-gaap_CounterpartyNameAxis = ddr_BorrowerCMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_RetailMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Mezzanine Loans | Retail | Borrower D [Member] |
Mortgage Loans On Real Estate [Line Items] |
Interest Rate | 9.00%us-gaap_MortgageLoansOnRealEstateInterestRate / us-gaap_CounterpartyNameAxis = ddr_BorrowerDMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_RetailMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Final Maturity Date | Jun-23
Periodic Payment Terms | I
Prior Liens | 20,500 us-gaap_MortgageLoansOnRealEstatePriorLiens1 / us-gaap_CounterpartyNameAxis = ddr_BorrowerDMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_RetailMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Face Amount of Mortgages | 7,500 us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages / us-gaap_CounterpartyNameAxis = ddr_BorrowerDMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_RetailMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Carrying Amount of Mortgages | 7,541 us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages / us-gaap_CounterpartyNameAxis = ddr_BorrowerDMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_RetailMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Principal Amount of Loans Subject to Delinquent Principal or Interest | 0 us-gaap_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans / us-gaap_CounterpartyNameAxis = ddr_BorrowerDMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_RetailMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Mezzanine Loans | Retail | Borrower E [Member] |
Mortgage Loans On Real Estate [Line Items] |
Interest Rate | LIBOR+8.0%,Floor 12%
Final Maturity Date | on demand (loan in default)
Periodic Payment Terms | I
Prior Liens | 12,816 us-gaap_MortgageLoansOnRealEstatePriorLiens1 / us-gaap_CounterpartyNameAxis = ddr_BorrowerEMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_RetailMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Face Amount of Mortgages | 10,806 us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages / us-gaap_CounterpartyNameAxis = ddr_BorrowerEMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_RetailMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Carrying Amount of Mortgages | 0 us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages / us-gaap_CounterpartyNameAxis = ddr_BorrowerEMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_RetailMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Principal Amount of Loans Subject to Delinquent Principal or Interest | 10,806 us-gaap_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans / us-gaap_CounterpartyNameAxis = ddr_BorrowerEMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_RetailMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Mezzanine Loans | Multi-family [Member] | Borrower B [Member] |
Mortgage Loans On Real Estate [Line Items] |
Interest Rate | LIBOR+6.0%,Floor 11%
Final Maturity Date | Feb-17
Periodic Payment Terms | I
Prior Liens | 26,000 us-gaap_MortgageLoansOnRealEstatePriorLiens1 / us-gaap_CounterpartyNameAxis = ddr_BorrowerBMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_MultiFamilyMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Face Amount of Mortgages | 5,868 us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages / us-gaap_CounterpartyNameAxis = ddr_BorrowerBMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_MultiFamilyMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Carrying Amount of Mortgages | 5,923 us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages / us-gaap_CounterpartyNameAxis = ddr_BorrowerBMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_MultiFamilyMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Principal Amount of Loans Subject to Delinquent Principal or Interest | 0 us-gaap_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans / us-gaap_CounterpartyNameAxis = ddr_BorrowerBMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_MultiFamilyMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Mezzanine Loans | Mixed Use [Member] | Borrower F [Member] |
Mortgage Loans On Real Estate [Line Items] |
Interest Rate | LIBOR+10.0%,Floor 14%
Final Maturity Date | on demand(loan in default)
Periodic Payment Terms | I
Prior Liens | 0 us-gaap_MortgageLoansOnRealEstatePriorLiens1 / us-gaap_CounterpartyNameAxis = ddr_BorrowerFMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_MixedUseMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Face Amount of Mortgages | 12,816 us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages / us-gaap_CounterpartyNameAxis = ddr_BorrowerFMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_MixedUseMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Carrying Amount of Mortgages | 5,026 us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages / us-gaap_CounterpartyNameAxis = ddr_BorrowerFMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_MixedUseMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Principal Amount of Loans Subject to Delinquent Principal or Interest | 9,343 us-gaap_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans / us-gaap_CounterpartyNameAxis = ddr_BorrowerFMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_MixedUseMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_MezzanineLoansMember
Investments in and Advances to Joint Ventures [Member] | Borrower G |
Mortgage Loans On Real Estate [Line Items] |
Interest Rate | 8.50%us-gaap_MortgageLoansOnRealEstateInterestRate / us-gaap_CounterpartyNameAxis = ddr_BorrowerGMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_InvestmentsAndAdvancesToJointVenturesMember
Final Maturity Date | Oct-21
Periodic Payment Terms | QI
Prior Liens | 1,236,797 us-gaap_MortgageLoansOnRealEstatePriorLiens1 / us-gaap_CounterpartyNameAxis = ddr_BorrowerGMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_InvestmentsAndAdvancesToJointVenturesMember
Face Amount of Mortgages | 300,000 us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages / us-gaap_CounterpartyNameAxis = ddr_BorrowerGMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_InvestmentsAndAdvancesToJointVenturesMember
Carrying Amount of Mortgages | 305,310 us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages / us-gaap_CounterpartyNameAxis = ddr_BorrowerGMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_InvestmentsAndAdvancesToJointVenturesMember
Principal Amount of Loans Subject to Delinquent Principal or Interest | 0 us-gaap_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans / us-gaap_CounterpartyNameAxis = ddr_BorrowerGMember / us-gaap_MortgageLoansOnRealEstateLoanTypeAxis = ddr_InvestmentsAndAdvancesToJointVenturesMember
Senior Loans [Member] | Retail | Borrower A [Member] |
Mortgage Loans On Real Estate [Line Items] |
Interest Rate | 5.73%us-gaap_MortgageLoansOnRealEstateInterestRate / us-gaap_CounterpartyNameAxis = ddr_BorrowerAMember / us-gaap_InvestmentTypeAxis = us-gaap_SeniorLoansMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_RetailMember
Final Maturity Date | Sep-17
Periodic Payment Terms | P&I
Prior Liens | 0 us-gaap_MortgageLoansOnRealEstatePriorLiens1 / us-gaap_CounterpartyNameAxis = ddr_BorrowerAMember / us-gaap_InvestmentTypeAxis = us-gaap_SeniorLoansMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_RetailMember
Face Amount of Mortgages | 33,000 us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages / us-gaap_CounterpartyNameAxis = ddr_BorrowerAMember / us-gaap_InvestmentTypeAxis = us-gaap_SeniorLoansMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_RetailMember
Carrying Amount of Mortgages | 29,415 us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages / us-gaap_CounterpartyNameAxis = ddr_BorrowerAMember / us-gaap_InvestmentTypeAxis = us-gaap_SeniorLoansMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_RetailMember
Principal Amount of Loans Subject to Delinquent Principal or Interest | $ 0 us-gaap_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans / us-gaap_CounterpartyNameAxis = ddr_BorrowerAMember / us-gaap_InvestmentTypeAxis = us-gaap_SeniorLoansMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = ddr_RetailMember

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- Definition Mortgage loans on real estate final maturity date on demand. + References No definition available. + Details
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- Definition Mortgage loans on real estate rates. + References No definition available. + Details
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- Definition The carrying amount of the outstanding balance due under the mortgage loan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 29 -Article 12 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph c -Subparagraph Schedule IV -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 + Details
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- Definition Amount of the contractual principal due at the origination of the mortgage loan (face amount). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 29 -Article 12 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph c -Subparagraph Schedule IV -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 + Details
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- Definition The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 29 -Article 12 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph c -Subparagraph Schedule IV -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 + Details
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- Definition Description of the contractual payment terms of the loan receivable including whether principal and interest is payable at a level or varying amount over the life of the loan, the amount of any balloon payment required at maturity, and any prepayment penalties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 29 -Article 12 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph c -Subparagraph Schedule IV -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29.5) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 + Details
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- Definition Amount of principal due on loans that have been delinquent, which may exclude loans having interest delinquent for three months or less, as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 29 -Article 12 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph c -Subparagraph Schedule IV -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29.10(a)) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 + Details
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- Definition Amount of prior lien on the real estate that secures the mortgage loan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 29 -Article 12 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph c -Subparagraph Schedule IV -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 + Details
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