v2.4.0.6

DEBT (Details) (USD $) In Thousands, unless otherwise specified			1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended				3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	May 31, 2011 2010 Credit Facility item	Sep. 30, 2012 2010 Credit Facility	Sep. 30, 2011 2010 Credit Facility	Sep. 30, 2012 2010 Credit Facility	Sep. 30, 2011 2010 Credit Facility	Dec. 31, 2010 2010 Credit Facility	May 31, 2012 2010 Credit Facility	Nov. 30, 2010 2010 Credit Facility	Apr. 16, 2010 2010 Credit Facility	Sep. 30, 2012 2010 Credit Facility Minimum	Sep. 30, 2011 2010 Credit Facility Minimum	Sep. 30, 2012 2010 Credit Facility Minimum	Sep. 30, 2011 2010 Credit Facility Minimum	Sep. 30, 2012 2010 Credit Facility Maximum	Sep. 30, 2011 2010 Credit Facility Maximum	Sep. 30, 2012 2010 Credit Facility Maximum	Sep. 30, 2011 2010 Credit Facility Maximum
Debt
Maximum borrowing capacity									$ 135,000	$ 150,000	$ 100,000
Available working capital borrowings				23,500		23,500
Drawdown during the period								1,500
Remaining borrowing capacity				33,750		33,750
Number of consecutive semi-annual reductions in total commitment			11
Amount of semi-annual reductions in maximum borrowing capacity through the maturity date			5,000
Repayment of the outstanding debt
2015				1,250		1,250
2016				100,000		100,000
Total debt	$ 101,250	$ 101,250		$ 101,250		$ 101,250
Effective interest rate including the range of interest rates on the debt but excluding the impact of unused commitment fees
Effective Interest Rate (as a percent)				3.24%	3.28%	3.25%	3.29%
Range of Interest Rates (excluding unused commitment fees) (as a percent)												3.22%	3.25%	3.22%	3.25%	3.25%	3.33%	3.30%	3.33%

X

- Definition

Represents the amount of the semi-annual reductions in the maximum borrowing capacity which will occur through the maturity date of the line of credit facility.

+ References

No definition available.

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- Definition

Represents the range of percentage of interest rates excluding unused commitment fees.

+ References

No definition available.

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- Definition

Represents the number of consecutive semi-annual reductions in maximum borrowing capacity under the line of credit facility.

+ References

No definition available.

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- Definition

Amount of borrowing capacity currently available under the credit facility for working capital (working capital borrowing capacity less drawdowns for working capital).

+ References

No definition available.

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- Definition

The average effective interest rate during the reporting period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

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-Topic 210

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- Definition

Increase for additional borrowings on the credit facility during the period.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(f))

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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-Publisher FASB

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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- Definition

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year.

+ References

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-Publisher FASB

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-SubTopic 10

-Section 50

-Paragraph 1

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- Definition

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year.

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- Definition

The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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-Publisher FASB

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