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Commitments and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified		6 Months Ended
	Jan. 23, 2013 Oxford	Jun. 30, 2014 Coventry II Joint Ventures Property
Contingencies And Commitments [Line Items]
Number of existing retail properties		10
Amount transferred to pay vendors pursuant to an agreement	$ 11

X

- Definition

Amount transferred to pay vendors pursuant to an agreement

+ References

No definition available.

+ Details

Name:	ddr_AmountTransferred
Namespace Prefix:	ddr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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- Details

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Namespace Prefix:	ddr_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

Existing or proposed retail properties that were acquired through various joint ventures with Coventry Real Estate Fund II, LLC and Coventry Fund II Parallel Fund LLC, excluding former Service Merchandise locations.

+ References

No definition available.

+ Details

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