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ORGANIZATION AND BASIS OF PRESENTATION (Details) - Entity [Domain] $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2015 USD ($) opportunity_fund property | Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |
Number of retail properties (in properties) | 145 |
Number of opportunity funds | opportunity_fund | 4 |
Brandywine Portfolio |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |
Noncontrolling interest, ownership percentage |  | 77.78%
Core Portfolio |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |
Number of retail properties (in properties) | 89 |
Opportunity Funds |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |
Number of retail properties (in properties) | 56 |
Operating Partnership, as General Partner or Managing Member |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |
Ownership interest by general partner or managing partner | 95.00% |
Remaining funds rate of distribution to partnership | 20.00% |
Institutional Investors |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |
Remaining funds rate of distribution to all partners | 80.00% |
Mortgages |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |
Debt instrument face amount | $ | $ 171,765 |
Non-Recourse Mortgage Debt Due 2016 | Mortgages |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |
Debt instrument face amount | $ | $ 26,300 |

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