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Optionus-gaap_EquityInterestIssuedOrIssuableByTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_StockOptionMemberus-gaap_EquityInterestIssuedOrIssuableByTypeAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse014true 3us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse015false 4us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableus-gaap_truecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse4141200041412[2]USD$falsetruefalsexbrli:monetaryItemTypemonetaryAmount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 false21The fair value of Lam Research equivalent restricted stock as of the acquisition date was estimated based upon the per share price of Lam Research common stock as of June 4, 2012, and giving effect to the exchange ratio of 1.125.2The fair value of the Lam Research equivalent stock options as of the acquisition date was estimated using the Black-Scholes valuation model. 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