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Other Assets and Intangibles - Summary of Estimated Net Future Amortization Associated with Above and Below-Market Leases (Detail) $ in Millions | 12 Months Ended
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Dec. 31, 2017 USD ($)
Intangible Assets Net Excluding Goodwill [Abstract] |
Future amortization income, 2018 | $ 7.1
Future amortization income, 2019 | 7.8
Future amortization income, 2020 | 7.9
Future amortization income, 2021 | 8.1
Future amortization income, 2022 | $ 8.4

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- Definition The amount of amortization income, net associated with above and below market leases expected to be recognized during next twelve months of the five succeeding fiscal years. + References No definition available. + Details
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- Definition The amount of amortization income, net associated with above and below market leases expected to be recognized during year five of the five succeeding fiscal years. + References No definition available. + Details
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- Definition The amount of amortization income, net associated with above and below market leases expected to be recognized during year four of the five succeeding fiscal years. + References No definition available. + Details
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- Definition The amount of amortization income, net associated with above and below market leases expected to be recognized during year three of the five succeeding fiscal years. + References No definition available. + Details
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- Definition The amount of amortization income, net associated with above and below market leases expected to be recognized during year two of the five succeeding fiscal years. + References No definition available. + Details
Name: | ddr_FutureAmortizationIncomeYearTwo
Namespace Prefix: | ddr_
Data Type: | xbrli:monetaryItemType
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X
- References No definition available. + Details
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