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Segment Information - Company's Combined Shopping and Office Properties Portfolios (Detail) | Dec. 31, 2013 ShoppingCenter | Dec. 31, 2012 ShoppingCenter | Dec. 31, 2011 ShoppingCenter
--- | --- | --- | ---
Shopping Centers [Member] |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |
Number of properties | 416 | 452 | 432
Shopping Centers [Member] | Excludes Brazil and Puerto Rico [Member] |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |
Number of states | 39 | 39 | 38
Shopping Centers [Member] | Joint ventures [Member] |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |
Number of properties | 173 | 209 | 179
Office Properties [Member] |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |
Number of properties | 0 | 0 | 5
Number of states | 0 | 0 | 3

X
- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of states the entity operates in as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_SegmentReportingAssetReconcilingItemLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration