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Acquisitions - Additional Information (Detail) (USD $) | 9 Months Ended
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Sep. 30, 2014 | Sep. 30, 2013
Business Acquisition [Line Items] |  |
Acquisition costs related to assets | $ 2,100,000 |
Revenues from the date of acquisition | 7,700,000 | 13,900,000
Gain on Sale and Change in Control of Interests | 3,977,000 |
Blackstone II Acquisition [Member] |  |
Business Acquisition [Line Items] |  |
Number of power centers acquired | 7 |
Value of transaction | 395,300,000 |
Ownership interest percentage | 100.00% |
Ownership interest of joint venture partner | 95.00% |
Debt assumed | 233,300,000 |
Mortgage debt assumed repaid at closing | 28,000,000 |
Preferred equity interest repaid | 31,200,000 |
Gain on Sale and Change in Control of Interests | $ 4,000,000 |

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- Definition Acquisition of joint venture partners ownership interest in shopping centers. + References No definition available. + Details
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- Definition Aggregate ownership interest percentage in previous joint venture. + References No definition available. + Details
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- Definition Mortgage debt assumed repaid at closing. + References No definition available. + Details
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- Definition The amount represents the face value of debt that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash acquisition. + References No definition available. + Details
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- Definition Ownership interest of joint venture partner. + References No definition available. + Details
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- Definition Preferred equity interest repaid. + References No definition available. + Details
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- Definition Value of transaction. + References No definition available. + Details
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- Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e1043-128460 + Details
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- Definition This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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- Definition In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g)(2) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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