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Investments in and Advances to Joint Ventures - Additional Information (Detail) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2016 USD ($) ShoppingCenter Asset | Mar. 31, 2016 USD ($) Asset | Sep. 30, 2016 USD ($) ShoppingCenter | Sep. 30, 2015 USD ($) | Dec. 31, 2015 ShoppingCenter
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Gain on sale of joint venture assets |  |  | $ 47,470 | $ 78,154 |
Shopping Center [Member] | Parent Company [Member] |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Gain on sale of joint venture assets |  | $ 13,500 |  |  |
Unconsolidated Joint Ventures [Member] |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Number of properties | ShoppingCenter | 155 |  | 155 |  | 168
BRE DDR Retail Holdings III [Member] | Shopping Center [Member] |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Number of properties sold | Asset | 2 |  |  |  |
Proceeds from sale of joint venture assets | $ 6,600 |  |  |  |
Gain on sale of joint venture assets | $ 500 |  |  |  |
DDR-SAU Retail Fund [Member] | Shopping Center [Member] |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Number of properties sold | Asset |  | 11 |  |  |
Proceeds from sale of joint venture assets |  | $ 170,500 |  |  |
Gain on sale of joint venture assets |  | $ 53,400 |  |  |

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- Definition The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585 + Details
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