Investments in and Advances to Joint Ventures - Condensed Combined Statements of Operations of Unconsolidated Joint Venture Investments (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Expenses from operations:
Operating expenses	$ 476,986us-gaap_OperatingExpenses	$ 196,764us-gaap_OperatingExpenses
Impairment charges	279,021us-gaap_AssetImpairmentCharges	2,329us-gaap_AssetImpairmentCharges
Depreciation and amortization	103,015us-gaap_DepreciationAndAmortization	103,619us-gaap_DepreciationAndAmortization
Interest expense	63,020us-gaap_InterestExpense	59,698us-gaap_InterestExpense
Other (income) expense, net	3,428us-gaap_OtherNonoperatingIncomeExpense	4,183us-gaap_OtherNonoperatingIncomeExpense
Loss before tax expense of taxable REIT subsidiaries and state franchise and income taxes	(263,108)	(19,616)
Income tax expense (primarily Sonae Sierra Brasil), net	(4,900)us-gaap_IncomeTaxExpenseBenefit	(684)us-gaap_IncomeTaxExpenseBenefit
Loss from continuing operations	(268,008)	(20,300)
Discontinued operations:
Loss from discontinued operations		(7,683)
Gain on disposition of real estate, net of tax		10,695
Loss before gain (loss) on disposition of real estate	(268,008)	(17,288)
Loss on disposition of real estate, net	25,094	(1,090)
(Income) loss attributable to non-controlling interests, net	(873)	1,738
Net loss attributable to DDR	(243,787)us-gaap_NetIncomeLoss	(16,640)us-gaap_NetIncomeLoss
Company's share of equity in net (loss) income of joint ventures	(247)	4,731
Basis differential adjustments	308	759
Equity in net income of joint ventures	61	5,490
Unconsolidated Joint Ventures [Member]
Condensed Combined Statements of Operations
Revenues from operations	137,600	136,501
Expenses from operations:
Operating expenses	50,982	47,807
Impairment charges	448	0
Depreciation and amortization	56,737	41,214
Interest expense	40,903	50,058
Other (income) expense, net	367	3,043
Total expenses	149,437	142,122
Loss before tax expense of taxable REIT subsidiaries and state franchise and income taxes	(11,837)	(5,621)
Income tax expense (primarily Sonae Sierra Brasil), net	0	(4,140)
Loss from continuing operations	(11,837)	(9,761)
Discontinued operations:
Loss from discontinued operations	0	(2,490)
Gain on disposition of real estate, net of tax	0	21,473
Loss before gain (loss) on disposition of real estate	(11,837)	9,222
Loss on disposition of real estate, net	(213)	0
Net (loss) income	(12,050)	9,222
(Income) loss attributable to non-controlling interests, net	0	(1,488)
Net loss attributable to DDR	$ (12,050)	$ 7,734

This item represents the amortization of the difference between the amount at which an investment accounted for under the equity method of accounting is carried on the balance sheet and the amount of the underlying equity in net assets reporting entity has in the investee.

No definition available.