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INCOME TAXES (Details 4) (USD $)	12 Months Ended
	Dec. 31, 2014
Unrecognized tax benefits
Unrecognized tax benefits, if recognized would impact effective tax rate	$ 17,100,000us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
Balance at the beginning of the period	11,600,000us-gaap_UnrecognizedTaxBenefits
Increase related to prior year tax positions	5,100,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
Increase related to current year tax positions	400,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
Balance at the end of the period	17,100,000us-gaap_UnrecognizedTaxBenefits
Interest and penalties expense related to unrecognized tax benefits	$ 0us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854



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-Name Accounting Standards Codification

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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

+ References

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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-Name Accounting Standards Codification

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