INVESTMENTS IN AND ADVANCES TO UNCONSOLIDATED AFFILIATES (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule of Equity Method Investments [Line Items]
Payments to Acquire Equity Method Investments									$ 56,171	$ 160,888	$ 54,981
Combined and Condensed Balance Sheets
Real estate under development	337,353				221,883				337,353	221,883
Investments in and advances to unconsolidated affiliates	181,322				221,904				181,322	221,904
Total assets	2,264,957				1,908,440				2,264,957	1,908,440
Other liabilities	18,265				14,652				18,265	14,652
Total liabilities and partners’ equity	2,264,957				1,908,440				2,264,957	1,908,440
Company's share of distributions in excess of share of income and investments in unconsolidated affiliates	(8,701)				(22,707)				(8,701)	(22,707)
Combined and Condensed Statements of Operations [Abstract]
Total revenues	44,102	41,085	40,808	42,291	31,817	29,580	28,257	25,333	168,286	114,987	97,857
Operating and other expenses									(112,407)	(87,232)	(71,999)
Equity in earnings of unconsolidated affiliates									12,382	550	1,555
Depreciation and amortization									(40,299)	(27,888)	(20,975)
(Loss) gain on debt extinguishment									(765)	(198)	1,268
Net income									26,503	9,267	4,877
Unconsolidated Affiliates [Member]
Combined and Condensed Balance Sheets
Rental property, net	380,268				441,611				380,268	441,611
Real estate under development	5,573				0				5,573	0
Investments in and advances to unconsolidated affiliates	63,745				93,923				63,745	93,923
Other assets	66,895				39,035				66,895	39,035
Total assets	516,481				574,569				516,481	574,569
Mortgage notes payable	265,982				326,296				265,982	326,296
Other liabilities	43,733				24,267				43,733	24,267
Partners’ equity	206,766				224,006				206,766	224,006
Total liabilities and partners’ equity	516,481				574,569				516,481	574,569
Combined and Condensed Statements of Operations [Abstract]
Total revenues									51,638	49,729	42,185
Operating and other expenses									(18,700)	(18,919)	(15,924)
Interest expense									(8,943)	(18,547)	(17,099)
Equity in earnings of unconsolidated affiliates									13,651	583	7,243
Depreciation and amortization									(10,599)	(9,551)	(8,837)
(Loss) gain on debt extinguishment									0	(293)	0
Gain on sale of properties									0	3,402	0
Net income									27,047	6,404	7,568
Operating Partnership, as General Partner or Managing Member [Member]
Combined and Condensed Statements of Operations [Abstract]
Equity in earnings of unconsolidated affiliates									12,382	1,579	1,555
Company’s share of net income									12,774	1,971	1,946
Amortization of excess investment									(392)	(392)	(391)
KLA/Mervyns LLC Add-On Investments [Member]
Schedule of Equity Method Investments [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	10.50%								10.50%
KLA A Markets LLC Add-On Investments [Member]
Schedule of Equity Method Investments [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	20.00%								20.00%
KA-Shopko LLC [Member]
Schedule of Equity Method Investments [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	20.00%								20.00%
Marsh and Add-On Investments [Member]
Schedule of Equity Method Investments [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	20.00%								20.00%
KLAC Rex Venture LLC [Member]
Schedule of Equity Method Investments [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	13.30%								13.30%
KLA/Mervyns LLC [Member]
Schedule of Equity Method Investments [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	10.50%								10.50%
KLA A Markets LLC [Member]
Schedule of Equity Method Investments [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	18.90%								18.90%
Mervyns I and Mervyns II [Member] | KLA/Mervyns LLC Add-On Investments [Member]
Schedule of Equity Method Investments [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	5.80%								5.80%
Mervyns I and Mervyns II [Member] | KLA/Mervyns LLC [Member]
Schedule of Equity Method Investments [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	5.80%								5.80%
Mervyns II [Member] | KLA A Markets LLC Add-On Investments [Member]
Schedule of Equity Method Investments [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	6.00%								6.00%
Mervyns II [Member] | KLAC Rex Venture LLC [Member]
Schedule of Equity Method Investments [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	13.30%								13.30%
Mervyns II [Member] | KLA A Markets LLC [Member]
Schedule of Equity Method Investments [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	5.70%								5.70%
Fund II [Member] | KA-Shopko LLC [Member]
Schedule of Equity Method Investments [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	2.00%								2.00%
Fund II [Member] | Marsh and Add-On Investments [Member]
Schedule of Equity Method Investments [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	3.30%								3.30%
Core Portfolio [Member]
Combined and Condensed Statements of Operations [Abstract]
Total revenues									110,355	70,400	58,162
Equity in earnings of unconsolidated affiliates									(99)	262	644
Depreciation and amortization									(28,989)	(17,065)	(13,070)
(Loss) gain on debt extinguishment									(309)	0	1,268
Net income									780	(1,097)	(7,932)
Core Portfolio [Member] | Crossroads [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	49.00%								49.00%
Square Footage of Real Estate Property (in feet)	311,000								311,000
Core Portfolio [Member] | Georgetown Portfolio [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	50.00%								50.00%
Square Footage of Real Estate Property (in feet)	28,000								28,000
Core Portfolio [Member] | 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 feet)	20,000								20,000
Fund II [Member]
Schedule of Equity Method Investments [Line Items]
Payments to Acquire Equity Method Investments									1,100
Non-Cash Transfer of Prepaid Rent and Construction Costs to Acquire Equity Method Investments									6,800
Opportunity Funds [Member]
Schedule of Equity Method Investments [Line Items]
Number of Unaffiliated Partners									2
Combined and Condensed Statements of Operations [Abstract]
Total revenues									46,131	36,560	27,990
Equity in earnings of unconsolidated affiliates									12,481	288	911
Depreciation and amortization									(11,310)	(10,823)	(7,905)
(Loss) gain on debt extinguishment									(456)	(198)	0
Net income									13,923	2,742	1,104
Opportunity Funds [Member] | RCP Venture [Member]
Schedule of Equity Method Investments [Line Items]
Investment Income, Dividend									145,763
Combined and Condensed Balance Sheets
Investments in and advances to unconsolidated affiliates	63,214								63,214
Opportunity Funds [Member] | RCP Venture [Member] | Operating Partnership, as General Partner or Managing Member [Member]
Schedule of Equity Method Investments [Line Items]
Investment Income, Dividend									31,346
Combined and Condensed Balance Sheets
Investments in and advances to unconsolidated affiliates	12,070								12,070
Opportunity Funds [Member] | Mervyns I and Mervyns II [Member] | KLA/Mervyns LLC Add-On Investments [Member]
Schedule of Equity Method Investments [Line Items]
Cost Method Investments	7,547								7,547
Investment Income, Dividend									5,334
Opportunity Funds [Member] | Mervyns I and Mervyns II [Member] | KLA/Mervyns LLC Add-On Investments [Member] | Operating Partnership, as General Partner or Managing Member [Member]
Schedule of Equity Method Investments [Line Items]
Cost Method Investments	1,252								1,252
Investment Income, Dividend									1,193
Opportunity Funds [Member] | Mervyns I and Mervyns II [Member] | KLA/Mervyns LLC [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	26,058								26,058
Equity Method Investment, Dividends or Distributions									46,916
Opportunity Funds [Member] | Mervyns I and Mervyns II [Member] | KLA/Mervyns LLC [Member] | Operating Partnership, as General Partner or Managing Member [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	4,901								4,901
Equity Method Investment, Dividends or Distributions									11,451
Opportunity Funds [Member] | Mervyns II [Member] | KLA A Markets LLC Add-On Investments [Member]
Schedule of Equity Method Investments [Line Items]
Cost Method Investments	2,416								2,416
Investment Income, Dividend									4,864
Opportunity Funds [Member] | Mervyns II [Member] | KLA A Markets LLC Add-On Investments [Member] | Operating Partnership, as General Partner or Managing Member [Member]
Schedule of Equity Method Investments [Line Items]
Cost Method Investments	388								388
Investment Income, Dividend									972
Opportunity Funds [Member] | Mervyns II [Member] | KLAC Rex Venture LLC [Member]
Schedule of Equity Method Investments [Line Items]
Cost Method Investments	2,701								2,701
Investment Income, Dividend									1,956
Opportunity Funds [Member] | Mervyns II [Member] | KLAC Rex Venture LLC [Member] | Operating Partnership, as General Partner or Managing Member [Member]
Schedule of Equity Method Investments [Line Items]
Cost Method Investments	535								535
Investment Income, Dividend									392
Opportunity Funds [Member] | Mervyns II [Member] | KLA A Markets LLC [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	20,717								20,717
Equity Method Investment, Dividends or Distributions									81,594
Opportunity Funds [Member] | Mervyns II [Member] | KLA A Markets LLC [Member] | Operating Partnership, as General Partner or Managing Member [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	4,239								4,239
Equity Method Investment, Dividends or Distributions									16,318
Opportunity Funds [Member] | Fund II [Member] | KA-Shopko LLC [Member]
Schedule of Equity Method Investments [Line Items]
Cost Method Investments	1,108								1,108
Investment Income, Dividend									2,460
Opportunity Funds [Member] | Fund II [Member] | KA-Shopko LLC [Member] | Operating Partnership, as General Partner or Managing Member [Member]
Schedule of Equity Method Investments [Line Items]
Cost Method Investments	222								222
Investment Income, Dividend									492
Opportunity Funds [Member] | Fund II [Member] | Marsh and Add-On Investments [Member]
Schedule of Equity Method Investments [Line Items]
Cost Method Investments	2,667								2,667
Investment Income, Dividend									2,639
Opportunity Funds [Member] | Fund II [Member] | Marsh and Add-On Investments [Member] | Operating Partnership, as General Partner or Managing Member [Member]
Schedule of Equity Method Investments [Line Items]
Cost Method Investments	533								533
Investment Income, Dividend									$ 528