XML 71 R94.htm IDEA: XBRL DOCUMENT v2.4.1.9
Amortization of Intangibles (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Segment Reporting Information [Line Items]      
Amortization of intangibles $ 37,067us-gaap_AmortizationOfIntangibleAssets $ 9,347us-gaap_AmortizationOfIntangibleAssets $ 9,594us-gaap_AmortizationOfIntangibleAssets
CMH      
Segment Reporting Information [Line Items]      
Amortization of intangibles 10,180us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_StatementBusinessSegmentsAxis
= entg_CriticalMaterialsHandlingCMHMember		 8,620us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_StatementBusinessSegmentsAxis
= entg_CriticalMaterialsHandlingCMHMember		 8,772us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_StatementBusinessSegmentsAxis
= entg_CriticalMaterialsHandlingCMHMember
EM      
Segment Reporting Information [Line Items]      
Amortization of intangibles $ 26,887us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_StatementBusinessSegmentsAxis
= entg_ElectronicMaterialsEMMember		 $ 727us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_StatementBusinessSegmentsAxis
= entg_ElectronicMaterialsEMMember		 $ 822us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_StatementBusinessSegmentsAxis
= entg_ElectronicMaterialsEMMember