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INTEREST RATE SWAP AGREEMENTS (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014 item	Dec. 31, 2013 item
INTEREST RATE SWAP AGREEMENTS
Number of interest rate swap agreements outstanding	1	4
Interest rate swaps designated as cash flow hedges
Notional amount outstanding	$ 106,233	$ 306,233
Interest Rate Swap, 4.485%
Interest rate swaps designated as cash flow hedges
Fixed rate (as a percent)	4.485%
Notional amount outstanding	106,233	106,233
Interest Rate Swap, 5.25%
Interest rate swaps designated as cash flow hedges
Fixed rate (as a percent)		5.25%
Notional amount outstanding		50,000
Interest Rate Swap, 2.05%
Interest rate swaps designated as cash flow hedges
Fixed rate (as a percent)		2.05%
Notional amount outstanding		100,000
Interest Rate Swap, 2.45%
Interest rate swaps designated as cash flow hedges
Fixed rate (as a percent)		2.45%
Notional amount outstanding		$ 50,000

X

- Definition

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

+ References

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

+ Details

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X

- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

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X

- Details

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- Details

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X

- Definition

Number of interest rate derivative instruments held by the entity at the reporting date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5580258-113959



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959

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