XML 78 R59.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Investments in and Advances to Joint Ventures - Condensed Combined Statements of Operations of Unconsolidated Joint Venture Investments (Parenthetical) (Detail) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Schedule Of Equity Method Investments [Line Items] |  |  |
Company's proportionate share of the impairment charges | $ 10,500,000 | $ 4,400,000 | $ 6,600,000
Company's share of aggregate impairment charges reclassified to discontinued operations |  | 800,000 | 4,000,000
Investment basis value for which no income loss recognized | $ 0 |  |
Unconsolidated Joint Ventures [Member] |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Impairment charges reclassified to discontinued operations related to asset sales |  | $ 11,100,000 | $ 49,300,000
Coventry II Fund JV [Member] |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Effective Ownership Percentage |  |  | 20.00%
Loss on property transfer |  |  | $ 32,600,000
Investment basis value for which no income loss recognized |  |  | $ 0

X
- Definition The proportionate share of impairment charges reclassified to discontinued operations of its equity method investee. + References No definition available. + Details
Name: | ddr_CompanyShareOfImpairmentChargesReclassifiedToDiscontinuedOperations
Namespace Prefix: | ddr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The proportionate share of total impairment charges of its equity method investee. + References No definition available. + Details
Name: | ddr_CompanysProportionateShareOfImpairmentCharges
Namespace Prefix: | ddr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The impairment charges reclassified to discontinued operations of its equity method investee. + References No definition available. + Details
Name: | ddr_ImpairmentChargesReclassifiedToDiscontinuedOperations
Namespace Prefix: | ddr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition No income (loss) recorded for those entities accounted for using the equity method in which its investment basis was zero. + References No definition available. + Details
Name: | ddr_InvestmentBasisValue
Namespace Prefix: | ddr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of net income (loss) reported by an equity method investment of the entity by a transfer of ownership to the lender. + References No definition available. + Details
Name: | ddr_LossOnPropertyTransfer
Namespace Prefix: | ddr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- 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
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition 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. + References No definition available. + Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=ddr_UnconsolidatedJointVenturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=ddr_CoventryTwoFundJointVenturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |