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Investments in and Advances to Joint Ventures - Additional Information (Detail) | 3 Months Ended | 9 Months Ended | 0 Months Ended | 3 Months Ended | 9 Months Ended | 4 Months Ended | 9 Months Ended |  |  |
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Sep. 30, 2014 USD ($) | Sep. 30, 2013 USD ($) | Sep. 30, 2014 USD ($) | Sep. 30, 2013 USD ($) | Apr. 28, 2014 DDR [Member] USD ($) | Jun. 30, 2014 DDR [Member] USD ($) | Sep. 30, 2014 DDR [Member] USD ($) | Apr. 28, 2014 Sonae Sierra Brazil [Member] BRL ShoppingCenter | Sep. 30, 2013 Sonae Sierra Brazil [Member] BRL | Sep. 30, 2014 Unconsolidated Joint Ventures [Member] USD ($) ShoppingCenter | Dec. 31, 2013 Unconsolidated Joint Ventures [Member] USD ($) ShoppingCenter | Sep. 30, 2014 BRE DDR Retail Holdings II [Member] ShoppingCenter | Dec. 31, 2013 BRE DDR Retail Holdings II [Member] USD ($) ShoppingCenter sqft
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Shopping centers owned |  |  |  |  |  |  |  | 10 |  | 147 | 170 |  |
Number of shopping centers |  |  |  |  |  |  |  |  |  |  |  | 7 | 7
Number of square feet of gross leasable area of shopping centers |  |  |  |  |  |  |  |  |  |  |  |  | 2,300,000
Ownership interest of joint venture partner |  |  |  |  |  |  |  |  |  |  |  | 95.00% |
Redeemable preferred equity |  |  |  |  |  |  |  |  |  | $ 38,635,000 | $ 71,771,000 |  | $ 30,000,000
Ownership interest in joint venture |  |  |  |  | 50.00% |  |  | 66.00% |  |  |  |  |
Proceeds from sale of unconsolidated joint venture assets |  |  |  |  | 343,600,000 |  |  |  |  |  |  |  |
Investment interest percentage |  |  |  |  | 33.00% |  |  |  |  |  |  |  |
Gain on Sale of Interests | 3,984,000 | 0 | 87,814,000 | 1,066,000 |  | 83,800,000 |  |  |  |  |  |  |
Gain on sale and change in control of interests |  |  | 19,700,000 |  |  |  | 19,700,000 |  |  |  |  |  |
Weighted-average exchange rate used for recording the equity in net income |  |  |  |  |  |  |  | 2.26 | 2.10 |  |  |  |
Number of properties sold |  |  |  |  |  |  |  |  |  | 8 |  |  |
Proceeds from sale of unconsolidated joint venture assets |  |  |  |  |  |  | 21,100,000 |  |  | 106,100,000 |  |  |
Gain on sale of unconsolidated joint venture assets |  |  |  |  |  |  | $ 7,700,000 |  |  | $ 32,100,000 |  |  |

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