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ACQUISITION OF REAL ESTATE AND DISCONTINUED OPERATIONS Dispositions (Details) (USD $) In Millions, unless otherwise specified | 6 Months Ended
--- | ---
Jun. 30, 2014 sqft
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Gross leasable area | 394,323 |
Proceeds from sale of real estate held-for-investment, gross | $ 46.5 |
Gain on disposition of property | 13.5 |
Walnut Hill |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Non-recourse Debt | 22.9 |
Other post-sale adjustments |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Gross leasable area | 0 |
Proceeds from sale of real estate held-for-investment, gross | 0 |
Gain on disposition of property | (0.9) |
Core Portfolio | Walnut Hill |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Gross leasable area | 297,905 | [1]
Proceeds from sale of real estate held-for-investment, gross | 0 | [1]
Gain on disposition of property | 12.4 | [1]
Fund III | Sheepshead Bay |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Gross leasable area | 96,418 |
Proceeds from sale of real estate held-for-investment, gross | 20.2 |
Gain on disposition of property | 1.4 |
Fund II | City Point |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Gross leasable area | 0 | [2]
Proceeds from sale of real estate held-for-investment, gross | 26.3 | [2]
Gain on disposition of property | $ 0.6 | [2]
[1] | This property was subject to $22.9 million of non-recourse debt and was foreclosed upon by the lender during March 2014, resulting in a $12.4 million gain.
[2] | Represents the sale of a portion of the residential air rights known as "Tower 2" associated with the Company's City Point development project.

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