Quarterly report pursuant to Section 13 or 15(d)

Debt - Debt Issuances - Credit Facility (Details)

v2.4.1.9
Debt - Debt Issuances - Credit Facility (Details) (USD $)
9 Months Ended 1 Months Ended
Mar. 31, 2015
quarter
Nov. 30, 2014
Term loans and revolving credit facility
Debt Instrument [Line Items]
Number of consecutive quarters required to maintain ratio 4klac_DebtInstrumentCovenantComplianceNumberofConsecutiveQuarters
/ us-gaap_LongtermDebtTypeAxis
= klac_TermLoanandRevolvingCreditFacilityMember
Minimum interest expense coverage ratio 3.50klac_DebtInstrumentCovenantComplianceMinimumInterestExpenseCoverageRatio
/ us-gaap_LongtermDebtTypeAxis
= klac_TermLoanandRevolvingCreditFacilityMember
Credit facility, amount outstanding $ 0us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding
/ us-gaap_LongtermDebtTypeAxis
= klac_TermLoanandRevolvingCreditFacilityMember
Term loans and revolving credit facility | Covenant compliance period, fiscal quarter ending December 31, 2014
Debt Instrument [Line Items]
Number of consecutive quarters required to maintain ratio 4klac_DebtInstrumentCovenantComplianceNumberofConsecutiveQuarters
/ klac_CovenantCompliancePeriodAxis
= klac_CovenantCompliancePeriod1Member
/ us-gaap_LongtermDebtTypeAxis
= klac_TermLoanandRevolvingCreditFacilityMember
Term loans and revolving credit facility | Covenant compliance period, fiscal quarters ending March 31, 2015 and June 30, 2015
Debt Instrument [Line Items]
Maximum leverage ratio 4.25klac_DebtInstrumentCovenantComplianceMaximumLeverageRatio
/ klac_CovenantCompliancePeriodAxis
= klac_CovenantCompliancePeriod2Member
/ us-gaap_LongtermDebtTypeAxis
= klac_TermLoanandRevolvingCreditFacilityMember
Term loans and revolving credit facility | Covenant compliance period, fiscal quarters ending September 30, 2015 and December 31, 2015
Debt Instrument [Line Items]
Maximum leverage ratio 4.00klac_DebtInstrumentCovenantComplianceMaximumLeverageRatio
/ klac_CovenantCompliancePeriodAxis
= klac_CovenantCompliancePeriod3Member
/ us-gaap_LongtermDebtTypeAxis
= klac_TermLoanandRevolvingCreditFacilityMember
Term loans and revolving credit facility | Covenant compliance period, fiscal quarters ending March 31, 2016 through September 30, 2016
Debt Instrument [Line Items]
Maximum leverage ratio 3.75klac_DebtInstrumentCovenantComplianceMaximumLeverageRatio
/ klac_CovenantCompliancePeriodAxis
= klac_CovenantCompliancePeriod4Member
/ us-gaap_LongtermDebtTypeAxis
= klac_TermLoanandRevolvingCreditFacilityMember
Term loans and revolving credit facility | Covenant compliance period, fiscal quarters ending December 31, 2016 through March 31, 2017
Debt Instrument [Line Items]
Maximum leverage ratio 3.50klac_DebtInstrumentCovenantComplianceMaximumLeverageRatio
/ klac_CovenantCompliancePeriodAxis
= klac_CovenantCompliancePeriod5Member
/ us-gaap_LongtermDebtTypeAxis
= klac_TermLoanandRevolvingCreditFacilityMember
Term loans and revolving credit facility | Covenant compliance period, thereafter
Debt Instrument [Line Items]
Maximum leverage ratio 3.00klac_DebtInstrumentCovenantComplianceMaximumLeverageRatio
/ klac_CovenantCompliancePeriodAxis
= klac_CovenantCompliancePeriod6Member
/ us-gaap_LongtermDebtTypeAxis
= klac_TermLoanandRevolvingCreditFacilityMember
Term loans and revolving credit facility | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate 1.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= klac_TermLoanandRevolvingCreditFacilityMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
Term loans and revolving credit facility | LIBOR | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate 1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= klac_TermLoanandRevolvingCreditFacilityMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
Term loans and revolving credit facility | LIBOR | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate 1.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= klac_TermLoanandRevolvingCreditFacilityMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
Term Loans
Debt Instrument [Line Items]
Principal amount 750,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
Term of debt instrument 5 years
Term Loans | Principal payment period, fiscal quarters ending March 31, 2015 - December 31, 2016
Debt Instrument [Line Items]
Periodic principal payment 9,375,000us-gaap_DebtInstrumentPeriodicPaymentPrincipal
/ us-gaap_DebtInstrumentRedemptionPeriodAxis
= us-gaap_DebtInstrumentRedemptionPeriodOneMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
Term Loans | Principal payment period, fiscal quarters ending March 31, 2017 - December 31, 2017
Debt Instrument [Line Items]
Periodic principal payment 14,063,000us-gaap_DebtInstrumentPeriodicPaymentPrincipal
/ us-gaap_DebtInstrumentRedemptionPeriodAxis
= us-gaap_DebtInstrumentRedemptionPeriodTwoMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
Term Loans | Principal payment period, fiscal quarters ending March 31, 2018 - December 31, 2019
Debt Instrument [Line Items]
Periodic principal payment 18,750,000us-gaap_DebtInstrumentPeriodicPaymentPrincipal
/ us-gaap_DebtInstrumentRedemptionPeriodAxis
= us-gaap_DebtInstrumentRedemptionPeriodThreeMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
Term Loans | December 31, 2019
Debt Instrument [Line Items]
Periodic principal payment 487,500,000us-gaap_DebtInstrumentPeriodicPaymentPrincipal
/ us-gaap_DebtInstrumentRedemptionPeriodAxis
= us-gaap_DebtInstrumentRedemptionPeriodFourMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
Revolving credit facility
Debt Instrument [Line Items]
Maximum borrowing capacity $ 500,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
Annual commitment fee on daily undrawn balance of revolving credit facility 0.15%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
Revolving credit facility | Minimum
Debt Instrument [Line Items]
Annual commitment fee on daily undrawn balance of revolving credit facility 0.10%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Revolving credit facility | Maximum
Debt Instrument [Line Items]
Annual commitment fee on daily undrawn balance of revolving credit facility 0.25%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
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