DEBT (Details) (USD $)	3 Months Ended
Mar. 31, 2015
Secured and Unsecured Debt [Line Items]
Unsecured bank credit facilities, change during period	$ 14,959,000
Payments of principal over future years [Abstract]
Remainder of 2015	39,244,000
2016	92,808,000
2017	58,239,000
2018	141,316,000
2019	130,568,000
2020 and beyond	383,471,000
Secured Debt [Member]
Secured and Unsecured Debt [Line Items]
Secured debt, change during period	(63,130,000)
Secured debt, amount repaid during period	57,450,000
Interest Rate (in hundredths)	5.50%
Secured debt, principal payments during period	5,669,000
Amortization of Debt Discount (Premium)	11,000
Loans Payable, Noncurrent [Abstract]
Debt Instrument, Maturity Date	Apr. 05, 2015
Unsecured Debt [Member]
Secured and Unsecured Debt [Line Items]
Unsecured debt, change during period	75,000,000
Long-term Debt, Maturities, Repayment Terms (in years)	7
Long-term debt, margin over LIBOR rate	1.40%
Effective Interest Rate	3.031%
$75 million interest rate swap executed in 2015 [Member] \| Unsecured Debt [Member]
Secured and Unsecured Debt [Line Items]
Derivative, Notional Amount	$ 75,000,000

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Long-term debt, margin over LIBOR rate

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Secured debt, amount repaid during period

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Secured debt, change during period

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Secured debt, principal payments during period

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Unsecured bank credit facilities, change during period

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Unsecured debt, change during period

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- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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-Publisher FASB

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Contractual interest rate for funds borrowed, under the debt agreement.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Disclosure of timing of required repayments, sinking fund requirements, and other redeemable securities at fixed or determinable prices and dates in the five years immediately following the date of the latest balance sheet presented in the financial statements, and the amount thereafter to fully repay the principal of long-term debt. These disclosures may be made either on an individual debt or security basis, by type of debt or security basis, or on a combined basis.

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