Number of board members to be nominated By investor.

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- Definition

Number of directors retained.

+ References

No definition available.

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- Definition

Number of shopping centers.

+ References

No definition available.

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- Definition

This item represents the amount of net sales proceeds received on disposal of an equity method investment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 35

-Paragraph 35

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

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- Definition

Amount of interest income earned from interest-bearing assets owed to the entity by related party.

+ References

No definition available.

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- Definition

Amount of transactions with related party during the financial reporting period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 850

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864

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-Topic 850

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-Paragraph 1

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Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties.

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Transactions with Related Parties - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended	12 Months Ended	0 Months Ended
	Jun. 30, 2012 Director	Dec. 31, 2010 ShoppingCenter	Apr. 28, 2014
Related Party Transaction [Line Items]
Number of board members to be nominated by investor			2
Mezzanine loan		$ 31.7
Number of shopping centers		6ddr_NumberOfShoppingCenters
Related transactions, interest rate		10.00%us-gaap_RelatedPartyTransactionRate
Number of Board of directors positions retained	2ddr_NumberOfDirectorsRetained
Interest income from related party	1.5us-gaap_InterestIncomeRelatedParty
Parent Company
Related Party Transaction [Line Items]
Ownership interest in joint venture			50.00%
Proceeds from sale of unconsolidated joint venture assets			$ 343.6