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Discontinued Operations and Disposition of Real Estate and Real Estate Investments - Additional Information (Detail) | 12 Months Ended | 36 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2012 Property | Dec. 31, 2012 Property | Dec. 31, 2011 Property | Dec. 31, 2010 Property
Discontinued Operations [Line Items] |  |  |  |
Number of properties sold | 29 |  |  |
Number of assets held for sale |  |  | 1 |
Number of properties included in discontinued operations |  | 120 |  |
Number of disposed properties previously included in shopping center segment |  | 88 |  |
Number of disposed properties previously included in other investments segment |  | 6 |  |
Number of properties included in other investments segment |  | 0 |  |
Other properties deconsolidated for accounting purposes | 26 | 26 | 26 | 26

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- Details
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- Definition Number of assets held for sale attributable to the disposal group during the reporting period. + References No definition available. + Details
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