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Acquisitions - Schedule of Acquisition Cost of Shopping Centers (Parenthetical) (Detail) - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015
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Business Combinations [Abstract] |  |
Above-market value of leases | $ 0.0 | $ 1.5

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- References No definition available. + Details
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Period Type: | duration

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- Definition This element represents the identifiable intangible asset established upon acquisition based on a favorable difference between the terms of an acquired lease and the current market terms for that lease at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.15) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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Period Type: | instant