Discontinued Operations - Additional Information (Detail)	9 Months Ended	12 Months Ended
Sep. 30, 2014 Property	Dec. 31, 2013 Property
Discontinued Operations And Disposal Groups [Abstract]
Number of properties sold	23	39
Number of properties held for sale		2

Number of properties sold attributable to the disposal group during the reporting period.

No definition available.

Name:	ddr_NumberOfPropertiesSold
Namespace Prefix:	ddr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration