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v2.4.1.9

Components of Convertible Notes (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified | 9 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 29, 2015 | Jun. 29, 2014 | Jun. 30, 2012 | May 31, 2011
2.625% Notes due 2041 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Carrying value, current portion | $ 519,366 us-gaap_LongTermDebtCurrent / us-gaap_ShortTermDebtTypeAxis = lrcx_TwoPointSixTwoFivePercentConvertibleSeniorNotesDueTwoThousandFortyOneMember | [1] | $ 516,586 us-gaap_LongTermDebtCurrent / us-gaap_ShortTermDebtTypeAxis = lrcx_TwoPointSixTwoFivePercentConvertibleSeniorNotesDueTwoThousandFortyOneMember | [1] |  |
Unamortized discount | 180,569 us-gaap_DebtInstrumentUnamortizedDiscount / us-gaap_ShortTermDebtTypeAxis = lrcx_TwoPointSixTwoFivePercentConvertibleSeniorNotesDueTwoThousandFortyOneMember | [1] | 183,349 us-gaap_DebtInstrumentUnamortizedDiscount / us-gaap_ShortTermDebtTypeAxis = lrcx_TwoPointSixTwoFivePercentConvertibleSeniorNotesDueTwoThousandFortyOneMember | [1] |  |
Principal amount | 699,935 us-gaap_DebtInstrumentFaceAmount / us-gaap_ShortTermDebtTypeAxis = lrcx_TwoPointSixTwoFivePercentConvertibleSeniorNotesDueTwoThousandFortyOneMember | [1] | 699,935 us-gaap_DebtInstrumentFaceAmount / us-gaap_ShortTermDebtTypeAxis = lrcx_TwoPointSixTwoFivePercentConvertibleSeniorNotesDueTwoThousandFortyOneMember | [1] | 700,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_ShortTermDebtTypeAxis = lrcx_TwoPointSixTwoFivePercentConvertibleSeniorNotesDueTwoThousandFortyOneMember |
Remaining amortization period (years) | 26 years 1 month 6 days | [1] |  |  |  |
Effective interest rate on liability component | 4.28%lrcx_DiscountRateUsedToDetermineLiabilityFairValue / us-gaap_ShortTermDebtTypeAxis = lrcx_TwoPointSixTwoFivePercentConvertibleSeniorNotesDueTwoThousandFortyOneMember | [1] |  |  |  |
Carrying amount of equity component, net of tax | 328,109 us-gaap_DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent / us-gaap_ShortTermDebtTypeAxis = lrcx_TwoPointSixTwoFivePercentConvertibleSeniorNotesDueTwoThousandFortyOneMember | [1] |  |  |  |
Fair Value of Notes (Level 2) | 1,470,612 us-gaap_ConvertibleDebtFairValueDisclosures / us-gaap_ShortTermDebtTypeAxis = lrcx_TwoPointSixTwoFivePercentConvertibleSeniorNotesDueTwoThousandFortyOneMember | [1] |  |  |  |
Conversion rate (shares of common stock per $1,000 principal amount of notes) | 28.7547 us-gaap_DebtInstrumentConvertibleConversionRatio1 / us-gaap_ShortTermDebtTypeAxis = lrcx_TwoPointSixTwoFivePercentConvertibleSeniorNotesDueTwoThousandFortyOneMember | [1] |  |  |  |
Conversion price (per share of common stock) | $ 34.78 us-gaap_DebtInstrumentConvertibleConversionPrice1 / us-gaap_ShortTermDebtTypeAxis = lrcx_TwoPointSixTwoFivePercentConvertibleSeniorNotesDueTwoThousandFortyOneMember | [1] |  |  |  |
If-converted value in excess of par value | 749,973 us-gaap_DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal / us-gaap_ShortTermDebtTypeAxis = lrcx_TwoPointSixTwoFivePercentConvertibleSeniorNotesDueTwoThousandFortyOneMember | [1] |  |  |  |
0.50% Notes due 2016 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Carrying value, long-term | 431,447 us-gaap_LongTermDebtNoncurrent / us-gaap_ShortTermDebtTypeAxis = lrcx_ZeroPointFiveZeroPercentConvertibleSeniorNotesDueTwoThousandSixteenMember |  | 419,561 us-gaap_LongTermDebtNoncurrent / us-gaap_ShortTermDebtTypeAxis = lrcx_ZeroPointFiveZeroPercentConvertibleSeniorNotesDueTwoThousandSixteenMember |  |  |
Unamortized discount | 18,553 us-gaap_DebtInstrumentUnamortizedDiscount / us-gaap_ShortTermDebtTypeAxis = lrcx_ZeroPointFiveZeroPercentConvertibleSeniorNotesDueTwoThousandSixteenMember |  | 30,439 us-gaap_DebtInstrumentUnamortizedDiscount / us-gaap_ShortTermDebtTypeAxis = lrcx_ZeroPointFiveZeroPercentConvertibleSeniorNotesDueTwoThousandSixteenMember |  |  |
Principal amount | 450,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_ShortTermDebtTypeAxis = lrcx_ZeroPointFiveZeroPercentConvertibleSeniorNotesDueTwoThousandSixteenMember |  | 450,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_ShortTermDebtTypeAxis = lrcx_ZeroPointFiveZeroPercentConvertibleSeniorNotesDueTwoThousandSixteenMember |  |  | 450,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_ShortTermDebtTypeAxis = lrcx_ZeroPointFiveZeroPercentConvertibleSeniorNotesDueTwoThousandSixteenMember
Remaining amortization period (years) | 1 year 1 month 6 days |  |  |  |  |
Effective interest rate on liability component | 4.29%lrcx_DiscountRateUsedToDetermineLiabilityFairValue / us-gaap_ShortTermDebtTypeAxis = lrcx_ZeroPointFiveZeroPercentConvertibleSeniorNotesDueTwoThousandSixteenMember |  |  |  |  |
Carrying amount of equity component, net of tax | 76,230 us-gaap_DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent / us-gaap_ShortTermDebtTypeAxis = lrcx_ZeroPointFiveZeroPercentConvertibleSeniorNotesDueTwoThousandSixteenMember |  |  |  |  |
Fair Value of Notes (Level 2) | 548,825 us-gaap_ConvertibleDebtFairValueDisclosures / us-gaap_ShortTermDebtTypeAxis = lrcx_ZeroPointFiveZeroPercentConvertibleSeniorNotesDueTwoThousandSixteenMember |  |  |  |  |
Conversion rate (shares of common stock per $1,000 principal amount of notes) | 16.0228 us-gaap_DebtInstrumentConvertibleConversionRatio1 / us-gaap_ShortTermDebtTypeAxis = lrcx_ZeroPointFiveZeroPercentConvertibleSeniorNotesDueTwoThousandSixteenMember |  |  |  |  |
Conversion price (per share of common stock) | $ 62.41 us-gaap_DebtInstrumentConvertibleConversionPrice1 / us-gaap_ShortTermDebtTypeAxis = lrcx_ZeroPointFiveZeroPercentConvertibleSeniorNotesDueTwoThousandSixteenMember |  |  |  |  |
If-converted value in excess of par value | 69,426 us-gaap_DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal / us-gaap_ShortTermDebtTypeAxis = lrcx_ZeroPointFiveZeroPercentConvertibleSeniorNotesDueTwoThousandSixteenMember |  |  |  |  |
1.25% Notes due 2018 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Carrying value, long-term | 398,502 us-gaap_LongTermDebtNoncurrent / us-gaap_ShortTermDebtTypeAxis = lrcx_OnePointTwoFivePercentConvertibleSeniorNotesDueTwoThousandEighteenMember |  | 387,338 us-gaap_LongTermDebtNoncurrent / us-gaap_ShortTermDebtTypeAxis = lrcx_OnePointTwoFivePercentConvertibleSeniorNotesDueTwoThousandEighteenMember |  |  |
Unamortized discount | 51,498 us-gaap_DebtInstrumentUnamortizedDiscount / us-gaap_ShortTermDebtTypeAxis = lrcx_OnePointTwoFivePercentConvertibleSeniorNotesDueTwoThousandEighteenMember |  | 62,662 us-gaap_DebtInstrumentUnamortizedDiscount / us-gaap_ShortTermDebtTypeAxis = lrcx_OnePointTwoFivePercentConvertibleSeniorNotesDueTwoThousandEighteenMember |  |  |
Principal amount | 450,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_ShortTermDebtTypeAxis = lrcx_OnePointTwoFivePercentConvertibleSeniorNotesDueTwoThousandEighteenMember |  | 450,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_ShortTermDebtTypeAxis = lrcx_OnePointTwoFivePercentConvertibleSeniorNotesDueTwoThousandEighteenMember |  |  | 450,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_ShortTermDebtTypeAxis = lrcx_OnePointTwoFivePercentConvertibleSeniorNotesDueTwoThousandEighteenMember
Remaining amortization period (years) | 3 years 1 month 6 days |  |  |  |  |
Effective interest rate on liability component | 5.27%lrcx_DiscountRateUsedToDetermineLiabilityFairValue / us-gaap_ShortTermDebtTypeAxis = lrcx_OnePointTwoFivePercentConvertibleSeniorNotesDueTwoThousandEighteenMember |  |  |  |  |
Carrying amount of equity component, net of tax | 104,895 us-gaap_DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent / us-gaap_ShortTermDebtTypeAxis = lrcx_OnePointTwoFivePercentConvertibleSeniorNotesDueTwoThousandEighteenMember |  |  |  |  |
Fair Value of Notes (Level 2) | 586,350 us-gaap_ConvertibleDebtFairValueDisclosures / us-gaap_ShortTermDebtTypeAxis = lrcx_OnePointTwoFivePercentConvertibleSeniorNotesDueTwoThousandEighteenMember |  |  |  |  |
Conversion rate (shares of common stock per $1,000 principal amount of notes) | 16.0228 us-gaap_DebtInstrumentConvertibleConversionRatio1 / us-gaap_ShortTermDebtTypeAxis = lrcx_OnePointTwoFivePercentConvertibleSeniorNotesDueTwoThousandEighteenMember |  |  |  |  |
Conversion price (per share of common stock) | $ 62.41 us-gaap_DebtInstrumentConvertibleConversionPrice1 / us-gaap_ShortTermDebtTypeAxis = lrcx_OnePointTwoFivePercentConvertibleSeniorNotesDueTwoThousandEighteenMember |  |  |  |  |
If-converted value in excess of par value | $ 69,426 us-gaap_DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal / us-gaap_ShortTermDebtTypeAxis = lrcx_OnePointTwoFivePercentConvertibleSeniorNotesDueTwoThousandEighteenMember |  |  |  |  |
[1] | During the quarter-ended March 29, 2015 and June 29, 2014, the market value of the Company's Common Stock was greater than or equal to 130% of the 2041 Note conversion price for 20 or more trading days of the 30 consecutive trading days preceding the quarter end. As a result, the 2041 Notes are convertible at the option of the holder. The carrying amount of the 2041 Notes was classified in current liabilities and the excess of the amount of cash payable, if converted, over the carrying amount of the 2041 Notes was classified as temporary equity on the Company's Consolidated Balance Sheets as of March 29, 2015 and June 29, 2014. Upon closure of a conversion period, all 2041 Notes not converted will be reclassified back to noncurrent liabilities and the temporary equity will be reclassified to permanent equity.

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- Definition Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Convertible Security -URI http://asc.fasb.org/extlink&oid=6509036 + Details
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- Definition The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031897-161870 + Details
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- Definition The price per share of the conversion feature embedded in the debt instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870 + Details
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- Definition Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(5)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Conversion Rate -URI http://asc.fasb.org/extlink&oid=6509012 + Details
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- Definition The amount by which the convertible debt's if-converted value exceeds its principle amount at the balance sheet date, regardless of whether the instrument is currently convertible. This element applies to public companies only. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870 + Details
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- Definition Remaining amortization period for discount on the liability component of convertible debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870 + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 + Details
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- Definition The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 + Details
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- Definition Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Article 5 + Details
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