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INVESTMENTS IN AND ADVANCES TO UNCONSOLIDATED AFFILIATES (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012 | Dec. 31, 2012
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Investments in and advances to unconsolidated affiliates | $ 188,299 |  | $ 188,299 |  | $ 221,904
Assets |  |  |  |  |
Investments in and advances to unconsolidated affiliates | 188,299 |  | 188,299 |  | 221,904
Total assets | 2,310,544 | 1,503,765 | 2,310,544 | 1,503,765 | 1,908,440
Liabilities and Equity |  |  |  |  |
Other liabilities | 19,266 |  | 19,266 |  | 21,303
Total liabilities and equity | 2,310,544 |  | 2,310,544 |  | 1,908,440
Investments in and advances to unconsolidated affiliates | 188,299 |  | 188,299 |  | 221,904
Company's share of distributions in excess of share of income and investments in unconsolidated affiliates | (12,319) |  | (12,319) |  | (22,707)
Combined and Condensed Statements of Operations |  |  |  |  |
Total revenues | 45,936 | 32,745 | 93,236 | 62,712 |
Operating and other expenses | (29,174) | (24,051) | (57,773) | (46,722) |
Equity in (losses) earnings of unconsolidated affiliates | 815 | 4,591 | 3,065 | 4,535 |
Depreciation and amortization | (10,976) | (8,201) | (21,604) | (15,351) |
Gain on sale of property | 4,191 | 2,668 | 4,191 | 2,668 |
Income from continuing operations | 5,157 | 5,176 | 15,939 | 5,672 |
Unconsolidated Affiliates |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Investments in and advances to unconsolidated affiliates | 63,746 |  | 63,746 |  | 93,923
Assets |  |  |  |  |
Rental property, net | 367,096 |  | 367,096 |  | 441,611
Investments in and advances to unconsolidated affiliates | 63,746 |  | 63,746 |  | 93,923
Other assets | 31,830 |  | 31,830 |  | 39,035
Total assets | 462,672 |  | 462,672 |  | 574,569
Liabilities and Equity |  |  |  |  |
Mortgage notes payable | 242,449 |  | 242,449 |  | 326,296
Other liabilities | 16,633 |  | 16,633 |  | 24,267
Partners' equity | 203,590 |  | 203,590 |  | 224,006
Total liabilities and equity | 462,672 |  | 462,672 |  | 574,569
Investments in and advances to unconsolidated affiliates | 63,746 |  | 63,746 |  | 93,923
Combined and Condensed Statements of Operations |  |  |  |  |
Total revenues | 10,846 | 11,922 | 21,845 | 24,218 |
Operating and other expenses | (4,698) | (4,362) | (8,979) | (8,816) |
Interest expense | (2,056) | (4,613) | (4,087) | (9,251) |
Equity in (losses) earnings of unconsolidated affiliates | 6,581 | 6,469 | 5,870 | 4,846 |
Depreciation and amortization | (2,608) | (2,371) | (4,688) | (4,643) |
Gain on sale of property | 0 | 3,402 | 0 | 3,402 |
Income from continuing operations | 8,065 | 10,447 | 9,961 | 9,756 |
Operating Partnership, as General Partner or Managing Member |  |  |  |  |
Combined and Condensed Statements of Operations |  |  |  |  |
Equity in (losses) earnings of unconsolidated affiliates | 815 | 4,591 | 3,065 | 4,535 |
Company's share of net income (loss) | 913 | 4,689 | 3,261 | 4,731 |
Amortization of excess investment | (98) | (98) | (196) | (196) |
Core Portfolio |  |  |  |  |
Assets |  |  |  |  |
Total assets | 1,100,356 | 750,634 | 1,100,356 | 750,634 |
Combined and Condensed Statements of Operations |  |  |  |  |
Total revenues | 28,057 | 17,366 | 54,471 | 33,070 |
Depreciation and amortization | (7,142) | (4,495) | (13,777) | (8,237) |
Core Portfolio | Crossroads |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity Method Investment, Ownership Percentage | 49.00% |  | 49.00% |  |
Square Footage of Real Estate Property (in square feet) | 311,000 |  | 311,000 |  |
Core Portfolio | Georgetown Portfolio |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity Method Investment, Ownership Percentage | 50.00% |  | 50.00% |  |
Square Footage of Real Estate Property (in square feet) | 28,000 |  | 28,000 |  |
Core Portfolio | Route 202 Shopping Center [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity Method Investment, Ownership Percentage | 22.22% |  | 22.22% |  |
Square Footage of Real Estate Property (in square feet) | 20,000 |  | 20,000 |  |
Opportunity Funds |  |  |  |  |
Assets |  |  |  |  |
Total assets | 1,104,704 | 664,419 | 1,104,704 | 664,419 |
Combined and Condensed Statements of Operations |  |  |  |  |
Total revenues | 14,480 | 13,202 | 32,006 | 25,436 |
Depreciation and amortization | (3,834) | (3,706) | (7,827) | (7,114) |
Opportunity Funds | RCP Venture |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Investments in and advances to unconsolidated affiliates | 63,214 |  | 63,214 |  |
Investment Income, Dividend |  |  | 144,012 |  |
Assets |  |  |  |  |
Investments in and advances to unconsolidated affiliates | 63,214 |  | 63,214 |  |
Liabilities and Equity |  |  |  |  |
Investments in and advances to unconsolidated affiliates | 63,214 |  | 63,214 |  |
Opportunity Funds | RCP Venture | Operating Partnership, as General Partner or Managing Member |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Investments in and advances to unconsolidated affiliates | 12,070 |  | 12,070 |  |
Investment Income, Dividend |  |  | 30,986 |  |
Assets |  |  |  |  |
Investments in and advances to unconsolidated affiliates | 12,070 |  | 12,070 |  |
Liabilities and Equity |  |  |  |  |
Investments in and advances to unconsolidated affiliates | 12,070 |  | 12,070 |  |
Opportunity Funds | Mervyns I and Mervyns II | KLA/Mervyns LLC Add-On Investments |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Cost Method Investments | 7,547 |  | 7,547 |  |
Investment Income, Dividend |  |  | 5,334 |  |
Opportunity Funds | Mervyns I and Mervyns II | KLA/Mervyns LLC Add-On Investments | Operating Partnership, as General Partner or Managing Member |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Cost Method Investments | 1,252 |  | 1,252 |  |
Investment Income, Dividend |  |  | 1,193 |  |
Opportunity Funds | Mervyns II | KLA A Markets LLC Add-On Investments |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Cost Method Investments | 2,416 |  | 2,416 |  |
Investment Income, Dividend |  |  | 4,864 |  |
Opportunity Funds | Mervyns II | KLA A Markets LLC Add-On Investments | Operating Partnership, as General Partner or Managing Member |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Cost Method Investments | 388 |  | 388 |  |
Investment Income, Dividend |  |  | 972 |  |
Opportunity Funds | Mervyns II | KLAC Rex Venture LLC |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Cost Method Investments | 2,701 |  | 2,701 |  |
Investment Income, Dividend |  |  | 1,956 |  |
Opportunity Funds | Mervyns II | KLAC Rex Venture LLC | Operating Partnership, as General Partner or Managing Member |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Cost Method Investments | 535 |  | 535 |  |
Investment Income, Dividend |  |  | 392 |  |
Opportunity Funds | Fund II | KA-Shopko LLC |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Cost Method Investments | 1,108 |  | 1,108 |  |
Investment Income, Dividend |  |  | 1,659 |  |
Opportunity Funds | Fund II | KA-Shopko LLC | Operating Partnership, as General Partner or Managing Member |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Cost Method Investments | 222 |  | 222 |  |
Investment Income, Dividend |  |  | 332 |  |
Opportunity Funds | Fund II | Marsh and Add-On Investments |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Cost Method Investments | 2,667 |  | 2,667 |  |
Investment Income, Dividend |  |  | 2,639 |  |
Opportunity Funds | Fund II | Marsh and Add-On Investments | Operating Partnership, as General Partner or Managing Member |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Cost Method Investments | 533 |  | 533 |  |
Investment Income, Dividend |  |  | 528 |  |
Opportunity Funds | KLA/Mervyns LLC | Mervyns I and Mervyns II |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity Method Investments | 26,058 |  | 26,058 |  |
Equity Method Investment, Dividends or Distributions |  |  | 45,966 |  |
Opportunity Funds | KLA/Mervyns LLC | Mervyns I and Mervyns II | Operating Partnership, as General Partner or Managing Member |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity Method Investments | 4,901 |  | 4,901 |  |
Equity Method Investment, Dividends or Distributions |  |  | 11,251 |  |
Opportunity Funds | KLA A Markets LLC | Mervyns II |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity Method Investments | 20,717 |  | 20,717 |  |
Equity Method Investment, Dividends or Distributions |  |  | 81,594 |  |
Opportunity Funds | KLA A Markets LLC | Mervyns II | Operating Partnership, as General Partner or Managing Member |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity Method Investments | 4,239 |  | 4,239 |  |
Equity Method Investment, Dividends or Distributions |  |  | $ 16,318 |  |

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