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INCOME TAXES (Details 3) (QA business, USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2012
QA business
Discontinued operations
Income tax benefit from final taxable gain recorded to discontinued operations	$ 4,228	$ 4,228

Tax effect of adjustment to an amount previously reported in discontinued operations that is directly related to the disposal of the component in a prior period. Examples of circumstances leading to such adjustments include the resolution of contingencies relating to the terms of the disposal transaction or relating to the operations of the component prior to its disposal, and the settlement of certain employee benefit plan obligations.

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