根据第13或15（d）条的季度报告

商誉和购买的无形资产（购买的无形资产）（详细信息）

v2.4.1.9
商誉和购买的无形资产（购买的无形资产）（详细信息）（美元$）
3个月结束 6个月结束 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Jun. 30, 2014
Components of purchased intangible assets
总载金 $ 291,479,000US-GAAP_FINITELIVERIVENTANGIBLEASSETSETSESTROSS $ 291,479,000US-GAAP_FINITELIVERIVENTANGIBLEASSETSETSESTROSS 291,479,000US-GAAP_FINITELIVERIVENTANGIBLEASSETSETSESTROSS
累积摊销和损害 271,928,000US-GAAP_FINITELIVERIVENTANGINANGIBLEASSETSETSETSETACCUMUTALITALMOLTALITION 271,928,000US-GAAP_FINITELIVERIVENTANGINANGIBLEASSETSETSETSETACCUMUTALITALMOLTALITION 263,782,000US-GAAP_FINITELIVERIVENTANGINANGIBLEASSETSETSETSETACCUMUTALITALMOLTALITION
Total 19,551,000us-gaap_FiniteLivedIntangibleAssetsNet 19,551,000us-gaap_FiniteLivedIntangibleAssetsNet 27,697,000us-gaap_FiniteLivedIntangibleAssetsNet
无形资产，摊销费用 4,000,000us-gaap_AmortizationOfIntangibleAssets 3,900,000us-gaap_AmortizationOfIntangibleAssets 8,100,000us-gaap_AmortizationOfIntangibleAssets 8,400,000us-gaap_AmortizationOfIntangibleAssets
现有技术
Components of purchased intangible assets
总载金 141,659,000US-GAAP_FINITELIVERIVENTANGIBLEASSETSETSESTROSS
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_existingtechnology ember		 141,659,000US-GAAP_FINITELIVERIVENTANGIBLEASSETSETSESTROSS
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_existingtechnology ember		 141,659,000US-GAAP_FINITELIVERIVENTANGIBLEASSETSETSESTROSS
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_existingtechnology ember
累积摊销和损害 130,671,000US-GAAP_FINITELIVERIVENTANGINANGIBLEASSETSETSETSETACCUMUTALITALMOLTALITION
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_existingtechnology ember		 130,671,000US-GAAP_FINITELIVERIVENTANGINANGIBLEASSETSETSETSETACCUMUTALITALMOLTALITION
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_existingtechnology ember		 126,567,000US-GAAP_FINITELIVERIVENTANGINANGIBLEASSETSETSETSETACCUMUTALITALMOLTALITION
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_existingtechnology ember
Total 10,988,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_existingtechnology ember		 10,988,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_existingtechnology ember		 15,092,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_existingtechnology ember
现有技术| Minimum
Components of purchased intangible assets
Range of Useful Lives 4年 4年
现有技术| Maximum
Components of purchased intangible assets
Range of Useful Lives 7年 7年
Patents
Components of purchased intangible assets
总载金 57,648,000US-GAAP_FINITELIVERIVENTANGIBLEASSETSETSESTROSS
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= us-gaap_patentsmember		 57,648,000US-GAAP_FINITELIVERIVENTANGIBLEASSETSETSESTROSS
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= us-gaap_patentsmember		 57,648,000US-GAAP_FINITELIVERIVENTANGIBLEASSETSETSESTROSS
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= us-gaap_patentsmember
累积摊销和损害 55,698,000US-GAAP_FINITELIVERIVENTANGINANGIBLEASSETSETSETSETACCUMUTALITALMOLTALITION
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= us-gaap_patentsmember		 55,698,000US-GAAP_FINITELIVERIVENTANGINANGIBLEASSETSETSETSETACCUMUTALITALMOLTALITION
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= us-gaap_patentsmember		 54,398,000US-GAAP_FINITELIVERIVENTANGINANGIBLEASSETSETSETSETACCUMUTALITALMOLTALITION
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= us-gaap_patentsmember
Total 1,950,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= us-gaap_patentsmember		 1,950,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= us-gaap_patentsmember		 3,250,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= us-gaap_patentsmember
专利|最低限度
Components of purchased intangible assets
Range of Useful Lives 6 years 6 years
专利|最大
Components of purchased intangible assets
Range of Useful Lives 13年 13年
Trade name/Trademark
Components of purchased intangible assets
总载金 19,893,000US-GAAP_FINITELIVERIVENTANGIBLEASSETSETSESTROSS
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_tradenametrademarkmember		 19,893,000US-GAAP_FINITELIVERIVENTANGIBLEASSETSETSESTROSS
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_tradenametrademarkmember		 19,893,000US-GAAP_FINITELIVERIVENTANGIBLEASSETSETSESTROSS
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_tradenametrademarkmember
累积摊销和损害 18,177,000US-GAAP_FINITELIVERIVENTANGINANGIBLEASSETSETSETSETACCUMUTALITALMOLTALITION
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_tradenametrademarkmember		 18,177,000US-GAAP_FINITELIVERIVENTANGINANGIBLEASSETSETSETSETACCUMUTALITALMOLTALITION
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_tradenametrademarkmember		 17,427,000US-GAAP_FINITELIVERIVENTANGINANGIBLEASSETSETSETSETACCUMUTALITALMOLTALITION
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_tradenametrademarkmember
Total 1,716,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_tradenametrademarkmember		 1,716,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_tradenametrademarkmember		 2,466,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_tradenametrademarkmember
商标名称/商标|最低限度
Components of purchased intangible assets
Range of Useful Lives 4年 4年
商标名称/商标|最大
Components of purchased intangible assets
Range of Useful Lives 10年 10年
客户关系
Components of purchased intangible assets
总载金 54,680,000US-GAAP_FINITELIVERIVENTANGIBLEASSETSETSESTROSS
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= US-GAAP_CUSTOMERRERATIONSHIPSMEMBER		 54,680,000US-GAAP_FINITELIVERIVENTANGIBLEASSETSETSESTROSS
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= US-GAAP_CUSTOMERRERATIONSHIPSMEMBER		 54,680,000US-GAAP_FINITELIVERIVENTANGIBLEASSETSETSESTROSS
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= US-GAAP_CUSTOMERRERATIONSHIPSMEMBER
累积摊销和损害 50,357,000US-GAAP_FINITELIVERIVENTANGINANGIBLEASSETSETSETSETACCUMUTALITALMOLTALITION
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= US-GAAP_CUSTOMERRERATIONSHIPSMEMBER		 50,357,000US-GAAP_FINITELIVERIVENTANGINANGIBLEASSETSETSETSETACCUMUTALITALMOLTALITION
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= US-GAAP_CUSTOMERRERATIONSHIPSMEMBER		 48,915,000US-GAAP_FINITELIVERIVENTANGINANGIBLEASSETSETSETSETACCUMUTALITALMOLTALITION
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= US-GAAP_CUSTOMERRERATIONSHIPSMEMBER
Total 4,323,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= US-GAAP_CUSTOMERRERATIONSHIPSMEMBER		 4,323,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= US-GAAP_CUSTOMERRERATIONSHIPSMEMBER		 5,765,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= US-GAAP_CUSTOMERRERATIONSHIPSMEMBER
客户关系|最低限度
Components of purchased intangible assets
Range of Useful Lives 6 years 6 years
客户关系|最大
Components of purchased intangible assets
Range of Useful Lives 7年 7年
其他
Components of purchased intangible assets
总载金 17,599,000US-GAAP_FINITELIVERIVENTANGIBLEASSETSETSESTROSS
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_otherintangiblemember		 17,599,000US-GAAP_FINITELIVERIVENTANGIBLEASSETSETSESTROSS
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_otherintangiblemember		 17,599,000US-GAAP_FINITELIVERIVENTANGIBLEASSETSETSESTROSS
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_otherintangiblemember
累积摊销和损害 17,025,000US-GAAP_FINITELIVERIVENTANGINANGIBLEASSETSETSETSETACCUMUTALITALMOLTALITION
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_otherintangiblemember		 17,025,000US-GAAP_FINITELIVERIVENTANGINANGIBLEASSETSETSETSETACCUMUTALITALMOLTALITION
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_otherintangiblemember		 16,475,000US-GAAP_FINITELIVERIVENTANGINANGIBLEASSETSETSETSETACCUMUTALITALMOLTALITION
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_otherintangiblemember
Total $ 574,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_otherintangiblemember		 $ 574,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_otherintangiblemember		 1,124,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_finitelivedintangibleasetsetsbymajorclassaxis
= klac_otherintangiblemember
其他|最低限度
Components of purchased intangible assets
Range of Useful Lives 0 years 0 years
其他|最大
Components of purchased intangible assets
Range of Useful Lives 1 year 1 year
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