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GOODWILL AND INTANGIBLE ASSETS Narrative (Details) (Assembléon B.V. [Member])
In Millions, unless otherwise specified
0 Months Ended
Dec. 29, 2014
USD ($)
Dec. 29, 2014
EUR (€)
Business Acquisition [Line Items]    
Purchase price $ 97.4us-gaap_BusinessCombinationConsiderationTransferred1
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€ 80.0us-gaap_BusinessCombinationConsiderationTransferred1
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= klic_AssemblonB.V.Member