XML 118 R94.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Disposition of Real Estate and Real Estate Investments and Discontinued Operations - Additional Information (Detail) - Property | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Discontinued Operations And Disposal Groups [Abstract] |  |  |
Number of properties sold | 33 | 29 |
Number of properties sold under discontinued operations |  |  | 35

X
- Definition Discontinued operations number of real estate properties sold. + References No definition available. + Details
Name: | ddr_DiscontinuedOperationsNumberOfRealEstatePropertiesSold
Namespace Prefix: | ddr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of properties sold attributable to the disposal group during the reporting period. + References No definition available. + Details
Name: | ddr_NumberOfPropertiesSold
Namespace Prefix: | ddr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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