XML 55 R44.htm IDEA: XBRL DOCUMENT v3.8.0.1

Notes Receivable - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2017
Mortgage Loans On Real Estate [Abstract]
Maturity Start Date	2019-06
Maturity End Date	2023-06
Interest Rate	9.00%

X

- Definition

Interest rate percentage for notes receivable.

+ References

No definition available.

+ Details

Name:	ddr_NoteReceivableInterestRatePercentage
Namespace Prefix:	ddr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Notes receivable maturity end date.

+ References

No definition available.

+ Details

Name:	ddr_NotesReceivableMaturityEndDate
Namespace Prefix:	ddr_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Notes receivable maturity start date.

+ References

No definition available.

+ Details

Name:	ddr_NotesReceivableMaturityStartDate
Namespace Prefix:	ddr_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_MortgageLoansOnRealEstateAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration