季度报告根据第13或15节（D）

股权和长期激励赔偿计划（现金长期激励计划）（详情）

v2.4.1.9.
股权和长期激励赔偿计划（现金长期激励计划）（详情）（USD $）
In Millions, unless otherwise specified
3个月结束了 6个月结束了
2014年12月31日
2013年12月31日
2014年12月31日
VerteD_Installment.
2013年12月31日
现金长期激励计划
基于现金的长期激励计划，批准金额 65.7美元klac_longtermincentiveplanapprovedamount. 65.7美元klac_longtermincentiveplanapprovedamount.
现金长期激励计划
现金长期激励计划
Cash long-term incentive plan, number of equal vesting installments 4.klac_deferredcompensationArrangementwithindividualnumberofequequalvestingInstallments.
/ us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis
= klac_cashlongtermincentiveplanmember.
现金长期激励计划，等值等分期百分比 25.00％klac_DeferredCompensationArrangementWithIndividualPercentageOfEqualVestingInstallments
/ us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis
= klac_cashlongtermincentiveplanmember.
Cash long-term incentive plan, vesting period 4.years
现金长期激励计划，赔偿费用 10.7US-GAAP_DEFERREDCompensationArrangementWithIndividualCompensationExpense.
/ us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis
= klac_cashlongtermincentiveplanmember.		 7.3US-GAAP_DEFERREDCompensationArrangementWithIndividualCompensationExpense.
/ us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis
= klac_cashlongtermincentiveplanmember.		 18.5US-GAAP_DEFERREDCompensationArrangementWithIndividualCompensationExpense.
/ us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis
= klac_cashlongtermincentiveplanmember.		 11.4US-GAAP_DEFERREDCompensationArrangementWithIndividualCompensationExpense.
/ us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis
= klac_cashlongtermincentiveplanmember.
现金长期激励计划，无法识别的补偿余额 $ 125.8Klac_deferredCompensationArrangementWithIndividualunRecognizedCompensationLimation.
/ us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis
= klac_cashlongtermincentiveplanmember.		 $ 125.8Klac_deferredCompensationArrangementWithIndividualunRecognizedCompensationLimation.
/ us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis
= klac_cashlongtermincentiveplanmember.
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