DISCONTINUED OPERATIONS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended			0 Months Ended	12 Months Ended	0 Months Ended	3 Months Ended		12 Months Ended			3 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Sep. 02, 2011 2007 Credit Agreements	Dec. 31, 2011 2007 Credit Agreements	Sep. 02, 2011 QA business	Sep. 30, 2012 QA business	Dec. 31, 2011 QA business	Dec. 31, 2012 QA business	Dec. 31, 2011 QA business	Aug. 16, 2011 QA business	Sep. 30, 2012 QA business Income tax benefit to discontinued operations, out of period adjustment
Discontinued operations
Sale price											$ 275,000
Total net cash proceeds						283,376		2,727		286,103
Estimated cash assumed						8,376
Repayment of debt				237,732
Write-off of remaining unamortized deferred financing costs	143	844	3,586	3,586	3,586
Income tax benefit from final taxable gain recorded to discontinued operations							4,228		4,228
Operating results
Net sales										76,667
Loss from operations before income tax expense										(6,493)
Gain on sale before income tax expense										120,005
Net earnings before income tax expense			113,512							113,512
Income tax (benefit) expense		(4,228)	75,388						(4,228)	75,388
Income tax benefit, prior period adjustment												1,629
Gain recorded in connection with the sale
Proceeds						283,376		2,727		286,103
Less transaction costs										(2,324)
Proceeds, net of expenses										283,779
Book value of assets sold excluding deferred tax liability										(163,774)
Gain on sale before income tax expense										120,005
Income tax expense						(105,934)				(105,934)
Gain on sale						$ 14,071				$ 14,071