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INVESTMENTS IN AND ADVANCES TO UNCONSOLIDATED AFFILIATES - Funds (Details) $ in Thousands | 1 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jan. 31, 2016 USD ($) | Sep. 30, 2016 USD ($) partner | Dec. 31, 2015 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |
Investments in and advances to unconsolidated affiliates |  | $ 273,576 | $ 173,277
Opportunity Funds |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Number of unaffiliated partners | partner |  | 2 |
Mervyns I and Mervyns II | Opportunity Funds | KLA/Mervyns LLC |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Distributions, equity method investment |  | $ 48,648 |
Equity method investments |  | 26,058 |
Mervyns I | Opportunity Funds |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Distributions, equity method investment |  | 100 |
Mervyns II | Opportunity Funds | KLA A Markets LLC |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Distributions, equity method investment |  | 81,594 |
Equity method investments |  | 21,108 |
Corporate Joint Venture | Opportunity Funds |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Distributions |  | 155,604 |
Investments in and advances to unconsolidated affiliates |  | 63,607 |
Fund III | Cortlandt Town Center |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Disposal group, percentage | 65.00% |  |
Disposal group, consideration | $ 107,300 |  |
Equity ownership percentage | 35.00% |  |
KLA/Mervyns LLC Add-On Investments | Mervyns I and Mervyns II | Opportunity Funds |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Invested Capital and Advances, cost method investments |  | 7,547 |
Distributions |  | 9,272 |
KLA A Markets LLC Add-On Investments | Mervyns II | Opportunity Funds |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Invested Capital and Advances, cost method investments |  | 2,416 |
Distributions |  | 4,864 |
KA-Shopko LLC | Fund II | Opportunity Funds |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Invested Capital and Advances, cost method investments |  | 1,110 |
Distributions |  | 3,358 |
Marsh and Add-On Investments | Fund II | Opportunity Funds |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Invested Capital and Advances, cost method investments |  | 2,667 |
Distributions |  | 2,941 |
KLAC Rex Venture LLC | Mervyns II | Opportunity Funds |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Invested Capital and Advances, cost method investments |  | 2,701 |
Distributions |  | 4,927 |
Operating Partnership, as General Partner or Managing Member | Mervyns I and Mervyns II | Opportunity Funds | KLA/Mervyns LLC |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Distributions, equity method investment |  | 11,821 |
Equity method investments |  | 4,901 |
Operating Partnership, as General Partner or Managing Member | Mervyns II | Opportunity Funds | KLA A Markets LLC |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Distributions, equity method investment |  | 16,318 |
Equity method investments |  | 4,350 |
Operating Partnership, as General Partner or Managing Member | Corporate Joint Venture | Opportunity Funds |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Distributions |  | 33,374 |
Investments in and advances to unconsolidated affiliates |  | 12,181 |
Operating Partnership, as General Partner or Managing Member | KLA/Mervyns LLC Add-On Investments | Mervyns I and Mervyns II | Opportunity Funds |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Invested Capital and Advances, cost method investments |  | 1,252 |
Distributions |  | 2,017 |
Operating Partnership, as General Partner or Managing Member | KLA A Markets LLC Add-On Investments | Mervyns II | Opportunity Funds |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Invested Capital and Advances, cost method investments |  | 388 |
Distributions |  | 972 |
Operating Partnership, as General Partner or Managing Member | KA-Shopko LLC | Fund II | Opportunity Funds |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Invested Capital and Advances, cost method investments |  | 222 |
Distributions |  | 672 |
Operating Partnership, as General Partner or Managing Member | Marsh and Add-On Investments | Fund II | Opportunity Funds |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Invested Capital and Advances, cost method investments |  | 533 |
Distributions |  | 588 |
Operating Partnership, as General Partner or Managing Member | KLAC Rex Venture LLC | Opportunity Funds |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Distributions, equity method investment |  | 20 |
Operating Partnership, as General Partner or Managing Member | KLAC Rex Venture LLC | Mervyns II | Opportunity Funds |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Invested Capital and Advances, cost method investments |  | 535 |
Distributions |  | $ 986 |

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