INVESTMENTS IN AND ADVANCES TO UNCONSOLIDATED AFFILIATES - Funds (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015 partner	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Investments in and advances to unconsolidated affiliates	184,500	$ 184,352
Opportunity Funds
Schedule of Equity Method Investments [Line Items]
Number of unaffiliated partners	2
Mervyns I and Mervyns II \| Opportunity Funds \| KLA/Mervyns LLC
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	26,058
Distributions, equity method investment	48,547
Mervyns I \| Opportunity Funds
Schedule of Equity Method Investments [Line Items]
Distributions, equity method investment	4,500
Mervyns II \| Opportunity Funds \| KLA A Markets LLC
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	20,717
Distributions, equity method investment	81,594
Corporate Joint Venture \| Opportunity Funds
Schedule of Equity Method Investments [Line Items]
Distributions	154,103
Investments in and advances to unconsolidated affiliates	63,216
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
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	4,727
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	2,460
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	2,639
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]
Equity Method Investments	4,901
Distributions, equity method investment	11,801
Operating Partnership, as General Partner or Managing Member \| Mervyns II \| Opportunity Funds \| KLA A Markets LLC
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	4,239
Distributions, equity method investment	16,318
Operating Partnership, as General Partner or Managing Member \| Corporate Joint Venture \| Opportunity Funds
Schedule of Equity Method Investments [Line Items]
Distributions	33,074
Investments in and advances to unconsolidated affiliates	12,070
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 \| KLAC Rex Venture LLC \| Opportunity Funds
Schedule of Equity Method Investments [Line Items]
Distributions, equity method investment	900
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	946
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	492
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	528

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Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

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