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Nature of Business and Financial Statement Presentation - Schedule of Fee and Other Income from Continuing Operations (Detail) (USD $)
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Income Statement [Abstract]    
Management and other fee income $ 8,100,000ddr_ManagementAndOtherFeeIncome $ 8,200,000ddr_ManagementAndOtherFeeIncome
Ancillary and other property income 4,200,000ddr_AncillaryAndOtherPropertyIncome 6,200,000ddr_AncillaryAndOtherPropertyIncome
Lease termination fees 200,000us-gaap_GainLossOnContractTermination 1,300,000us-gaap_GainLossOnContractTermination
Other 200,000ddr_Other 200,000ddr_Other
Total fee and other income $ 12,663,000us-gaap_OtherRealEstateRevenue $ 15,884,000us-gaap_OtherRealEstateRevenue