2.4.0.6 Html 84 172 1 false 25 0 false 4 false false R1.htm 00 - Document - Document and Entity Information Sheet http://synaptics.com/role/DocumentAndEntityInformation Document and Entity Information true false R2.htm 0110 - Statement - Condensed Consolidated Balance Sheets (Unaudited) Sheet http://synaptics.com/role/BalanceSheets Condensed Consolidated Balance Sheets (Unaudited) false false R3.htm 0111 - Statement - Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) Sheet http://synaptics.com/role/BalanceSheetsParenthetical Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) false false R4.htm 0120 - Statement - Condensed Consolidated Statements of Income (Unaudited) Sheet http://synaptics.com/role/StatementsOfIncome Condensed Consolidated Statements of Income (Unaudited) false false R5.htm 0130 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) Sheet http://synaptics.com/role/StatementsOfCashFlows Condensed Consolidated Statements of Cash Flows (Unaudited) false false R6.htm 0201 - Disclosure - Basis of Presentation Sheet http://synaptics.com/role/BasisOfPresentation Basis of Presentation false false R7.htm 0202 - Disclosure - Revenue Recognition Sheet http://synaptics.com/role/RevenueRecognition Revenue Recognition false false R8.htm 0203 - Disclosure - Net Income Per Share Sheet http://synaptics.com/role/NetIncomePerShare Net Income Per Share false false R9.htm 0204 - Disclosure - Fair Value of Cash Equivalents and Investments Sheet http://synaptics.com/role/FairValueOfCashEquivalentsAndInvestments Fair Value of Cash Equivalents and Investments false false R10.htm 0205 - Disclosure - Auction Rate Securities Sheet http://synaptics.com/role/AuctionRateSecurities Auction Rate Securities false false R11.htm 0206 - Disclosure - Inventories Sheet http://synaptics.com/role/Inventories Inventories false false R12.htm 0207 - Disclosure - Product Warranties, Indemnifications, and Contingencies Sheet http://synaptics.com/role/ProductWarrantiesIndemnificationsAndContingencies Product Warranties, Indemnifications, and Contingencies false false R13.htm 0208 - Disclosure - Share-Based Compensation Sheet http://synaptics.com/role/ShareBasedCompensation Share-Based Compensation false false R14.htm 0209 - Disclosure - Income Taxes Sheet http://synaptics.com/role/IncomeTaxes Income Taxes false false R15.htm 0210 - Disclosure - Segment, Customers, and Geographic Information Sheet http://synaptics.com/role/SegmentCustomersAndGeographicInformation Segment, Customers, and Geographic Information false false R16.htm 0211 - Disclosure - Comprehensive Income Sheet http://synaptics.com/role/ComprehensiveIncome Comprehensive Income false false R17.htm 0401 - Disclosure - Basis of Presentation (Policies) Sheet http://synaptics.com/role/BasisOfPresentationPolicies Basis of Presentation (Policies) false false R18.htm 0503 - Disclosure - Net Income Per Share (Tables) Sheet http://synaptics.com/role/NetIncomePerShareTables Net Income Per Share (Tables) false false R19.htm 0504 - Disclosure - Fair Value of Cash Equivalents and Investments (Tables) Sheet http://synaptics.com/role/FairValueOfCashEquivalentsAndInvestmentsTables Fair Value of Cash Equivalents and Investments (Tables) false false R20.htm 0505 - Disclosure - Auction Rate Securities (Tables) Sheet http://synaptics.com/role/AuctionRateSecuritiesTables Auction Rate Securities (Tables) false false R21.htm 0506 - Disclosure - Inventories (Tables) Sheet http://synaptics.com/role/InventoriesTables Inventories (Tables) false false R22.htm 0508 - Disclosure - Share-Based Compensation (Tables) Sheet http://synaptics.com/role/ShareBasedCompensationTables Share-Based Compensation (Tables) false false R23.htm 0510 - Disclosure - Segment, Customers, and Geographic Information (Tables) Sheet http://synaptics.com/role/SegmentCustomersAndGeographicInformationTables Segment, Customers, and Geographic Information (Tables) false false R24.htm 0511 - Disclosure - Comprehensive Income [Tables] Sheet http://synaptics.com/role/ComprehensiveIncomeTables Comprehensive Income [Tables] false false R25.htm 0603 - Disclosure - Net Income Per Share (Details) Sheet http://synaptics.com/role/NetIncomePerShareDetails Net Income Per Share (Details) false false R26.htm 06031 - Disclosure - Net Income Per Share (Details 1) Sheet http://synaptics.com/role/NetIncomePerShareDetails1 Net Income Per Share (Details 1) false false R27.htm 0604 - Disclosure - Fair Value of Cash Equivalents and Investments (Details) Sheet http://synaptics.com/role/FairValueOfCashEquivalentsAndInvestmentsDetails Fair Value of Cash Equivalents and Investments (Details) false false R28.htm 06041 - Disclosure - Fair Value of Cash Equivalents and Investments (Details 1) Sheet http://synaptics.com/role/FairValueOfCashEquivalentsAndInvestmentsDetails1 Fair Value of Cash Equivalents and Investments (Details 1) false false R29.htm 0605 - Disclosure - Auction Rate Securities (Details) Sheet http://synaptics.com/role/AuctionRateSecuritiesDetails Auction Rate Securities (Details) false false R30.htm 06051 - Disclosure - Auction Rate Securities (Details Textual) Sheet http://synaptics.com/role/AuctionRateSecuritiesTextualDetails Auction Rate Securities (Details Textual) false false R31.htm 0606 - Disclosure - Inventories (Details) Sheet http://synaptics.com/role/InventoriesDetails Inventories (Details) false false R32.htm 0608 - Disclosure - Share-Based Compensation (Details) Sheet http://synaptics.com/role/ShareBasedCompensationDetails Share-Based Compensation (Details) false false R33.htm 06081 - Disclosure - Share-Based Compensation (Details 1) Sheet http://synaptics.com/role/ShareBasedCompensationDetails1 Share-Based Compensation (Details 1) false false R34.htm 06082 - Disclosure - Share-Based Compensation (Details 2) Sheet http://synaptics.com/role/ShareBasedCompensationDetails2 Share-Based Compensation (Details 2) false false R35.htm 06083 - Disclosure - Share-Based Compensation (Details 3) Sheet http://synaptics.com/role/ShareBasedCompensationDetails3 Share-Based Compensation (Details 3) false false R36.htm 06084 - Disclosure - Share-Based Compensation (Details Textual) Sheet http://synaptics.com/role/ShareBasedCompensationDetailsTextual Share-Based Compensation (Details Textual) false false R37.htm 0609 - Disclosure - Income Taxes (Details Textual) Sheet http://synaptics.com/role/IncomeTaxesDetailsTextual Income Taxes (Details Textual) false false R38.htm 0610 - Disclosure - Segment Customers and Geographic Information (Details) Sheet http://synaptics.com/role/SegmentCustomersAndGeographicInformation1Details Segment Customers and Geographic Information (Details) false false R39.htm 06101 - Disclosure - Segment Customers and Geographic Information (Details 1) Sheet http://synaptics.com/role/SegmentCustomersAndGeographicInformationDetails1 Segment Customers and Geographic Information (Details 1) false false R40.htm 0611 - Disclosure - Comprehensive Income [Details] Sheet http://synaptics.com/role/ComprehensiveIncomeDetails Comprehensive Income [Details] false false All Reports Book All Reports 'Monetary' elements on report '06051 - Disclosure - Auction Rate Securities (Details Textual)' had a mix of different decimal attribute values. 'Monetary' elements on report '0609 - Disclosure - Income Taxes (Details Textual)' had a mix of different decimal attribute values. Process Flow-Through: 0110 - Statement - Condensed Consolidated Balance Sheets (Unaudited) Process Flow-Through: Removing column 'Mar. 31, 2011' Process Flow-Through: Removing column 'Jun. 30, 2010' Process Flow-Through: 0111 - Statement - Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) Process Flow-Through: 0120 - Statement - Condensed Consolidated Statements of Income (Unaudited) Process Flow-Through: 0130 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) syna-20120331.xml syna-20120331.xsd syna-20120331_cal.xml syna-20120331_def.xml syna-20120331_lab.xml syna-20120331_pre.xml true true