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v3.3.1.900

SUBSEQUENT EVENTS (Details) - USD ($) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jan. 31, 2016 | Dec. 31, 2015 | Feb. 01, 2016
Subsequent Event [Member] | Gotham Plaza [Member] | Manhattan, New York [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Percent Owned | 49.00% |  |
Purchase Price | $ 39,800,000 |  |
Percentage of long-term debt assumed | 49.00% |  |
Long-term debt assumed | $ 21,400,000 |  |
Fund IV [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Purchase Price |  | $ 146,100,000 |
Fund IV [Member] | Subsequent Event [Member] | Chicago, Illinois [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Notes Receivable and Preferred Equity Investments, Fair Value |  |  | $ 14,000,000
Rate of return percentage |  |  | 15.30%
Fund IV [Member] | Subsequent Event [Member] | Restaurant at Fort Point [Member] | Boston, Massachusetts [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Purchase Price | $ 11,500,000 |  |
Fund IV [Member] | Subsequent Event [Member] | 1964 Union Street [Member] | San Francisco, California [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Percent Owned | 90.00% |  |
Purchase Price | $ 2,000,000 |  |
Fund III [Member] | Subsequent Event [Member] | Cortlandt Towne Center [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Percentage of disposition | 65.00% |  |
Consideration received | $ 107,300,000 |  |
Fund II [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Purchase Price |  | $ 100,800,000 |
Term Loan [Member] | Subsequent Event [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Debt issued amount | $ 50,000,000.0 |  |
Unconsolidated Affiliates [Member] | Operating Partnership, as General Partner or Managing Member [Member] | Fund II [Member] | Subsequent Event [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Percent Owned | 28.30% |  |
Purchase Price | $ 18,400,000 |  |
Percentage of acquire additional interest in subsidiaries | 8.30% |  |
Minimum [Member] | LIBOR [Member] | Term Loan [Member] | Subsequent Event [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Borrowings, interest rate basis spread | 1.30% |  |
Maximum [Member] | LIBOR [Member] | Term Loan [Member] | Subsequent Event [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Borrowings, interest rate basis spread | 1.90% |  |

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