XML 26 R42.htm IDEA: XBRL DOCUMENT
v3.2.0.727

Investments in and Advances to Joint Ventures - Condensed Combined Statements of Operations of Unconsolidated Joint Venture Investments (Parenthetical) (Detail) $ in Millions | Jun. 30, 2015 USD ($)
--- | ---
Income Statement [Abstract] |
Investment basis value for which no income loss recognized | $ 0

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