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Components of Accumulated Other Comprehensive Loss (Parenthetical) (Detail) (USD $) In Thousands, unless otherwise specified | 9 Months Ended
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Mar. 29, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items] |
Reclassification from accumulated other comprehensive income | $ 7,984 us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
Reclassified to Revenue |
Accumulated Other Comprehensive Income (Loss) [Line Items] |
Reclassification from accumulated other comprehensive income | 7,670 us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_StatementScenarioAxis = lrcx_ReclassifiedToRevenueMember
Reclassified to cost of goods sold |
Accumulated Other Comprehensive Income (Loss) [Line Items] |
Reclassification from accumulated other comprehensive income | (2,396)us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_StatementScenarioAxis = lrcx_ReclassifiedToCostOfGoodsSoldMember
Reclassified to selling, general, and administrative |
Accumulated Other Comprehensive Income (Loss) [Line Items] |
Reclassification from accumulated other comprehensive income | (1,321)us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_StatementScenarioAxis = lrcx_ReclassifiedToSellingGeneralAndAdministrativeMember
Reclassified To Other Expense |
Accumulated Other Comprehensive Income (Loss) [Line Items] |
Reclassification from accumulated other comprehensive income | $ (11)us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_StatementScenarioAxis = lrcx_ReclassifiedToOtherExpenseMember

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- Definition Amount after tax of reclassification adjustments of other comprehensive income (loss). + References No definition available. + Details
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