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Commitments and Contingencies - Additional Information (Detail) (USD $) | 9 Months Ended |
--- | --- | ---
Mar. 29, 2015 | Jun. 29, 2014
Commitments and Contingencies [Line Items] |  |  |
Restricted collateral for leasing arrangements | $ 164,300,000 us-gaap_RestrictedCashAndInvestmentsNoncurrent | $ 146,492,000 us-gaap_RestrictedCashAndInvestmentsNoncurrent | [1]
Standby Letters of Credit |  |  |
Commitments and Contingencies [Line Items] |  |  |
Guarantee Obligation Maximum Exposure | 15,900,000 us-gaap_GuaranteeObligationsMaximumExposure / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_StandbyLettersOfCreditMember |  |
Operating Lease Cash Collateral |  |  |
Commitments and Contingencies [Line Items] |  |  |
Restricted collateral for leasing arrangements | 132,500,000 us-gaap_RestrictedCashAndInvestmentsNoncurrent / us-gaap_FairValueByMeasurementBasisAxis = lrcx_OperatingLeaseCashCollateralMember |  |
Operating Lease Marketable Securities Collateral |  |  |
Commitments and Contingencies [Line Items] |  |  |
Restricted collateral for leasing arrangements | 25,200,000 us-gaap_RestrictedCashAndInvestmentsNoncurrent / us-gaap_FairValueByMeasurementBasisAxis = lrcx_OperatingLeaseMarketableSecuritiesCollateralMember |  |
Operating Leases |  |  |
Commitments and Contingencies [Line Items] |  |  |
Operating Lease residual value of guarantee, maximum | 191,200,000 lrcx_OperatingLeaseResidualValueGuarantee / us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis = lrcx_FremontAndLivermoreLeaseMember |  |
Maximum percentage of aggregate investment value guaranteed | 100.00%lrcx_MaximumPercentageOfAggregateInvestmentValueGuaranteed / us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis = lrcx_FremontAndLivermoreLeaseMember |  |
Guarantee Obligation Maximum Exposure | $ 220,000,000 us-gaap_GuaranteeObligationsMaximumExposure / us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis = lrcx_FremontAndLivermoreLeaseMember |  |
[1] | Derived from audited financial statements

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- Details
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- Definition Percentage of aggregate investment in leased property guaranteed under certain default circumstances. + References No definition available. + Details
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- Definition The aggregate value guarantee that the company made under the referenced lease agreement. + References No definition available. + Details
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Balance Type: | credit
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- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
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- Definition The noncurrent cash, cash equivalents and investments that is restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits classified as long-term; that is not expected to be released from such existing restrictions within one year of the balance sheet date or operating cycle, whichever is longer. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. Includes noncurrent cash equivalents and investments that are similarly restricted as to withdrawal, usage or disposal. + References No definition available. + Details
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