XML 75 R56.htm IDEA: XBRL DOCUMENT v3.3.1.900

Investments in and Advances to Joint Ventures - Summary of Company's Equity Method Joint Ventures Included in Investments in and Advances (Detail)	12 Months Ended
	Dec. 31, 2015 Assets
BRE DDR Retail Holdings III [Member]
Schedule Of Equity Method Investments [Line Items]
Effective Ownership Percentage	5.00%
Equity Method Investment, Assets Owned	56 shopping centers in several states
Number of shopping centers owned	56
BRE DDR Retail Holdings IV [Member]
Schedule Of Equity Method Investments [Line Items]
Effective Ownership Percentage	5.00%
Equity Method Investment, Assets Owned	6 shopping centers in several states
Number of shopping centers owned	6
DDRTC Core Retail Fund LLC [Member]
Schedule Of Equity Method Investments [Line Items]
Effective Ownership Percentage	15.00%
Equity Method Investment, Assets Owned	25 shopping centers in several states
Number of shopping centers owned	25
DDR Domestic Retail Fund I [Member]
Schedule Of Equity Method Investments [Line Items]
Effective Ownership Percentage	20.00%
Equity Method Investment, Assets Owned	55 grocery-anchored retail centers in several states
Number of shopping centers owned	55
DDR-SAU Retail Fund LLC [Member]
Schedule Of Equity Method Investments [Line Items]
Effective Ownership Percentage	20.00%
Equity Method Investment, Assets Owned	23 grocery-anchored retail centers in several states
Number of shopping centers owned	23
Other Joint Venture Interests [Member]
Schedule Of Equity Method Investments [Line Items]
Equity Method Investment, Assets Owned	3 shopping centers in 2 states
Number of shopping centers owned	3
Minimum [Member] | Other Joint Venture Interests [Member]
Schedule Of Equity Method Investments [Line Items]
Effective Ownership Percentage	25.75%
Maximum [Member] | Other Joint Venture Interests [Member]
Schedule Of Equity Method Investments [Line Items]
Effective Ownership Percentage	79.45%

X

- Definition

The number of assets owned as of the balance sheet date.

+ References

No definition available.

+ Details

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

X

- Definition

Number of assets owned by unconsolidated joint ventures.

+ References

No definition available.

+ Details

Name:	ddr_NumberOfAssetsOwnedByUnconsolidatedJointVentures
Namespace Prefix:	ddr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- 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)
-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=ddr_BREDDRRetailHoldingsIIIMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=ddr_BREDDRRetailHoldingsIVMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=ddr_DdrtcCoreRetailFundMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=ddr_DdrDomesticRetailFundOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=ddr_DdrSuRetailFundLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=ddr_OtherJointVentureInterestsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: