3.26.1 html 266 299 1 false 73 0 false 8 false false R1.htm 0000001 - Document - Cover Page Sheet http://www.macomtech.com/role/CoverPage Cover Page Cover 1 false false R2.htm 9952151 - Statement - Condensed Consolidated Balance Sheets (Unaudited) Sheet http://www.macomtech.com/role/CondensedConsolidatedBalanceSheetsUnaudited Condensed Consolidated Balance Sheets (Unaudited) Statements 2 false false R3.htm 9952152 - Statement - Condensed Consolidated Statements of Operations (Unaudited) Sheet http://www.macomtech.com/role/CondensedConsolidatedStatementsofOperationsUnaudited Condensed Consolidated Statements of Operations (Unaudited) Statements 3 false false R4.htm 9952153 - Statement - Condensed Consolidated Statements of Comprehensive (Loss) Income (Unaudited) Sheet http://www.macomtech.com/role/CondensedConsolidatedStatementsofComprehensiveLossIncomeUnaudited Condensed Consolidated Statements of Comprehensive (Loss) Income (Unaudited) Statements 4 false false R5.htm 9952154 - Statement - Condensed Consolidated Statement of Stockholders' Equity (Unaudited) Sheet http://www.macomtech.com/role/CondensedConsolidatedStatementofStockholdersEquityUnaudited Condensed Consolidated Statement of Stockholders' Equity (Unaudited) Statements 5 false false R6.htm 9952155 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) Sheet http://www.macomtech.com/role/CondensedConsolidatedStatementsofCashFlowsUnaudited Condensed Consolidated Statements of Cash Flows (Unaudited) Statements 6 false false R7.htm 9952156 - Disclosure - BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Sheet http://www.macomtech.com/role/BASISOFPRESENTATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Notes 7 false false R8.htm 9952157 - Disclosure - REVENUE Sheet http://www.macomtech.com/role/REVENUE REVENUE Notes 8 false false R9.htm 9952158 - Disclosure - ACQUISITIONS Sheet http://www.macomtech.com/role/ACQUISITIONS ACQUISITIONS Notes 9 false false R10.htm 9952159 - Disclosure - Investments Sheet http://www.macomtech.com/role/Investments Investments Notes 10 false false R11.htm 9952160 - Disclosure - FAIR VALUE AND FINANCIAL INSTRUMENTS Sheet http://www.macomtech.com/role/FAIRVALUEANDFINANCIALINSTRUMENTS FAIR VALUE AND FINANCIAL INSTRUMENTS Notes 11 false false R12.htm 9952161 - Disclosure - INVENTORIES Sheet http://www.macomtech.com/role/INVENTORIES INVENTORIES Notes 12 false false R13.htm 9952162 - Disclosure - PROPERTY AND EQUIPMENT Sheet http://www.macomtech.com/role/PROPERTYANDEQUIPMENT PROPERTY AND EQUIPMENT Notes 13 false false R14.htm 9952163 - Disclosure - INTANGIBLE ASSETS Sheet http://www.macomtech.com/role/INTANGIBLEASSETS INTANGIBLE ASSETS Notes 14 false false R15.htm 9952164 - Disclosure - Accrued Liabilities Sheet http://www.macomtech.com/role/AccruedLiabilities Accrued Liabilities Notes 15 false false R16.htm 9952165 - Disclosure - Debt Sheet http://www.macomtech.com/role/Debt Debt Notes 16 false false R17.htm 9952166 - Disclosure - FINANCING OBLIGATION Sheet http://www.macomtech.com/role/FINANCINGOBLIGATION FINANCING OBLIGATION Notes 17 false false R18.htm 9952167 - Disclosure - EARNINGS PER SHARE Sheet http://www.macomtech.com/role/EARNINGSPERSHARE EARNINGS PER SHARE Notes 18 false false R19.htm 9952168 - Disclosure - COMMITMENTS AND CONTINGENCIES Sheet http://www.macomtech.com/role/COMMITMENTSANDCONTINGENCIES COMMITMENTS AND CONTINGENCIES Notes 19 false false R20.htm 9952169 - Disclosure - STOCKHOLDERS’ EQUITY AND SHARE-BASED COMPENSATION Sheet http://www.macomtech.com/role/STOCKHOLDERSEQUITYANDSHAREBASEDCOMPENSATION STOCKHOLDERS’ EQUITY AND SHARE-BASED COMPENSATION Notes 20 false false R21.htm 9952170 - Disclosure - INCOME TAXES Sheet http://www.macomtech.com/role/INCOMETAXES INCOME TAXES Notes 21 false false R22.htm 9952171 - Disclosure - SUPPLEMENTAL CASH FLOW INFORMATION Sheet http://www.macomtech.com/role/SUPPLEMENTALCASHFLOWINFORMATION SUPPLEMENTAL CASH FLOW INFORMATION Notes 22 false false R23.htm 9952172 - Disclosure - SEGMENT REPORTING, GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION Sheet http://www.macomtech.com/role/SEGMENTREPORTINGGEOGRAPHICANDSIGNIFICANTCUSTOMERINFORMATION SEGMENT REPORTING, GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION Notes 23 false false R24.htm 9952173 - Disclosure - RELATED-PARTY TRANSACTIONS Sheet http://www.macomtech.com/role/RELATEDPARTYTRANSACTIONS RELATED-PARTY TRANSACTIONS Notes 24 false false R25.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 25 false false R26.htm 9955511 - Disclosure - BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) Sheet http://www.macomtech.com/role/BASISOFPRESENTATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) Policies 26 false false R27.htm 9955512 - Disclosure - REVENUE (Tables) Sheet http://www.macomtech.com/role/REVENUETables REVENUE (Tables) Tables http://www.macomtech.com/role/REVENUE 27 false false R28.htm 9955513 - Disclosure - Investments (Tables) Sheet http://www.macomtech.com/role/InvestmentsTables Investments (Tables) Tables http://www.macomtech.com/role/Investments 28 false false R29.htm 9955514 - Disclosure - FAIR VALUE AND FINANCIAL INSTRUMENTS (Tables) Sheet http://www.macomtech.com/role/FAIRVALUEANDFINANCIALINSTRUMENTSTables FAIR VALUE AND FINANCIAL INSTRUMENTS (Tables) Tables http://www.macomtech.com/role/FAIRVALUEANDFINANCIALINSTRUMENTS 29 false false R30.htm 9955515 - Disclosure - INVENTORIES (Tables) Sheet http://www.macomtech.com/role/INVENTORIESTables INVENTORIES (Tables) Tables http://www.macomtech.com/role/INVENTORIES 30 false false R31.htm 9955516 - Disclosure - PROPERTY AND EQUIPMENT (Tables) Sheet http://www.macomtech.com/role/PROPERTYANDEQUIPMENTTables PROPERTY AND EQUIPMENT (Tables) Tables http://www.macomtech.com/role/PROPERTYANDEQUIPMENT 31 false false R32.htm 9955517 - Disclosure - INTANGIBLE ASSETS (Tables) Sheet http://www.macomtech.com/role/INTANGIBLEASSETSTables INTANGIBLE ASSETS (Tables) Tables http://www.macomtech.com/role/INTANGIBLEASSETS 32 false false R33.htm 9955518 - Disclosure - Accrued Liabilities (Tables) Sheet http://www.macomtech.com/role/AccruedLiabilitiesTables Accrued Liabilities (Tables) Tables http://www.macomtech.com/role/AccruedLiabilities 33 false false R34.htm 9955519 - Disclosure - Debt (Tables) Sheet http://www.macomtech.com/role/DebtTables Debt (Tables) Tables http://www.macomtech.com/role/Debt 34 false false R35.htm 9955520 - Disclosure - EARNINGS PER SHARE (Tables) Sheet http://www.macomtech.com/role/EARNINGSPERSHARETables EARNINGS PER SHARE (Tables) Tables http://www.macomtech.com/role/EARNINGSPERSHARE 35 false false R36.htm 9955521 - Disclosure - STOCKHOLDERS’ EQUITY AND SHARE-BASED COMPENSATION (Tables) Sheet http://www.macomtech.com/role/STOCKHOLDERSEQUITYANDSHAREBASEDCOMPENSATIONTables STOCKHOLDERS’ EQUITY AND SHARE-BASED COMPENSATION (Tables) Tables http://www.macomtech.com/role/STOCKHOLDERSEQUITYANDSHAREBASEDCOMPENSATION 36 false false R37.htm 9955522 - Disclosure - INCOME TAXES (Tables) Sheet http://www.macomtech.com/role/INCOMETAXESTables INCOME TAXES (Tables) Tables http://www.macomtech.com/role/INCOMETAXES 37 false false R38.htm 9955523 - Disclosure - SUPPLEMENTAL CASH FLOW INFORMATION (Tables) Sheet http://www.macomtech.com/role/SUPPLEMENTALCASHFLOWINFORMATIONTables SUPPLEMENTAL CASH FLOW INFORMATION (Tables) Tables http://www.macomtech.com/role/SUPPLEMENTALCASHFLOWINFORMATION 38 false false R39.htm 9955524 - Disclosure - SEGMENT REPORTING, GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION (Tables) Sheet http://www.macomtech.com/role/SEGMENTREPORTINGGEOGRAPHICANDSIGNIFICANTCUSTOMERINFORMATIONTables SEGMENT REPORTING, GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION (Tables) Tables http://www.macomtech.com/role/SEGMENTREPORTINGGEOGRAPHICANDSIGNIFICANTCUSTOMERINFORMATION 39 false false R40.htm 9955525 - Disclosure - REVENUE (Details) Sheet http://www.macomtech.com/role/REVENUEDetails REVENUE (Details) Details http://www.macomtech.com/role/REVENUETables 40 false false R41.htm 9955526 - Disclosure - ACQUISITIONS - Narrative (Details) Sheet http://www.macomtech.com/role/ACQUISITIONSNarrativeDetails ACQUISITIONS - Narrative (Details) Details 41 false false R42.htm 9955527 - Disclosure - INVESTMENTS - Summary of Available for Sale Investments (Details) Sheet http://www.macomtech.com/role/INVESTMENTSSummaryofAvailableforSaleInvestmentsDetails INVESTMENTS - Summary of Available for Sale Investments (Details) Details 42 false false R43.htm 9955528 - Disclosure - INVESTMENTS - Summary of Contractual Maturities of Investments (Details) Sheet http://www.macomtech.com/role/INVESTMENTSSummaryofContractualMaturitiesofInvestmentsDetails INVESTMENTS - Summary of Contractual Maturities of Investments (Details) Details 43 false false R44.htm 9955529 - Disclosure - INVESTMENTS - Narrative (Details) Sheet http://www.macomtech.com/role/INVESTMENTSNarrativeDetails INVESTMENTS - Narrative (Details) Details 44 false false R45.htm 9955530 - Disclosure - FAIR VALUE AND FINANCIAL INSTRUMENTS - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) Sheet http://www.macomtech.com/role/FAIRVALUEANDFINANCIALINSTRUMENTSAssetsandLiabilitiesMeasuredatFairValueonRecurringBasisDetails FAIR VALUE AND FINANCIAL INSTRUMENTS - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) Details 45 false false R46.htm 9955531 - Disclosure - FAIR VALUE AND FINANCIAL INSTRUMENTS (Details) Sheet http://www.macomtech.com/role/FAIRVALUEANDFINANCIALINSTRUMENTSDetails FAIR VALUE AND FINANCIAL INSTRUMENTS (Details) Details http://www.macomtech.com/role/FAIRVALUEANDFINANCIALINSTRUMENTSTables 46 false false R47.htm 9955532 - Disclosure - INVENTORIES (Details) Sheet http://www.macomtech.com/role/INVENTORIESDetails INVENTORIES (Details) Details http://www.macomtech.com/role/INVENTORIESTables 47 false false R48.htm 9955533 - Disclosure - PROPERTY AND EQUIPMENT - Components of Property, Plant and Equipment (Details) Sheet http://www.macomtech.com/role/PROPERTYANDEQUIPMENTComponentsofPropertyPlantandEquipmentDetails PROPERTY AND EQUIPMENT - Components of Property, Plant and Equipment (Details) Details 48 false false R49.htm 9955534 - Disclosure - PROPERTY AND EQUIPMENT - Additional Information (Details) Sheet http://www.macomtech.com/role/PROPERTYANDEQUIPMENTAdditionalInformationDetails PROPERTY AND EQUIPMENT - Additional Information (Details) Details 49 false false R50.htm 9955535 - Disclosure - INTANGIBLE ASSETS - Summary of Amortization Expense of Intangible Assets (Details) Sheet http://www.macomtech.com/role/INTANGIBLEASSETSSummaryofAmortizationExpenseofIntangibleAssetsDetails INTANGIBLE ASSETS - Summary of Amortization Expense of Intangible Assets (Details) Details 50 false false R51.htm 9955536 - Disclosure - INTANGIBLE ASSETS - Summary of Intangible Assets (Details) Sheet http://www.macomtech.com/role/INTANGIBLEASSETSSummaryofIntangibleAssetsDetails INTANGIBLE ASSETS - Summary of Intangible Assets (Details) Details 51 false false R52.htm 9955537 - Disclosure - INTANGIBLE ASSETS - Summary of Activity in Intangible Assets and Goodwill (Details) Sheet http://www.macomtech.com/role/INTANGIBLEASSETSSummaryofActivityinIntangibleAssetsandGoodwillDetails INTANGIBLE ASSETS - Summary of Activity in Intangible Assets and Goodwill (Details) Details 52 false false R53.htm 9955538 - Disclosure - INTANGIBLE ASSETS - Summary of Estimated Amortization of Intangible Assets (Details) Sheet http://www.macomtech.com/role/INTANGIBLEASSETSSummaryofEstimatedAmortizationofIntangibleAssetsDetails INTANGIBLE ASSETS - Summary of Estimated Amortization of Intangible Assets (Details) Details 53 false false R54.htm 9955539 - Disclosure - INTANGIBLE ASSETS - Goodwill (Details) Sheet http://www.macomtech.com/role/INTANGIBLEASSETSGoodwillDetails INTANGIBLE ASSETS - Goodwill (Details) Details 54 false false R55.htm 9955540 - Disclosure - INTANGIBLE ASSETS - Additional Information (Details) Sheet http://www.macomtech.com/role/INTANGIBLEASSETSAdditionalInformationDetails INTANGIBLE ASSETS - Additional Information (Details) Details 55 false false R56.htm 9955541 - Disclosure - Accrued Liabilities - Schedule of Accrued Liabilities (Detail) Sheet http://www.macomtech.com/role/AccruedLiabilitiesScheduleofAccruedLiabilitiesDetail Accrued Liabilities - Schedule of Accrued Liabilities (Detail) Details 56 false false R57.htm 9955542 - Disclosure - Debt - Schedule of Remaining Outstanding Balances on Term Loans (Details) Sheet http://www.macomtech.com/role/DebtScheduleofRemainingOutstandingBalancesonTermLoansDetails Debt - Schedule of Remaining Outstanding Balances on Term Loans (Details) Details 57 false false R58.htm 9955543 - Disclosure - Debt - Additional Information (Details) Sheet http://www.macomtech.com/role/DebtAdditionalInformationDetails Debt - Additional Information (Details) Details 58 false false R59.htm 9955544 - Disclosure - FINANCING OBLIGATION (Details) Sheet http://www.macomtech.com/role/FINANCINGOBLIGATIONDetails FINANCING OBLIGATION (Details) Details http://www.macomtech.com/role/FINANCINGOBLIGATION 59 false false R60.htm 9955545 - Disclosure - EARNINGS PER SHARE (Details) Sheet http://www.macomtech.com/role/EARNINGSPERSHAREDetails EARNINGS PER SHARE (Details) Details http://www.macomtech.com/role/EARNINGSPERSHARETables 60 false false R61.htm 9955546 - Disclosure - STOCKHOLDERS’ EQUITY AND SHARE-BASED COMPENSATION - Additional Information (Details) Sheet http://www.macomtech.com/role/STOCKHOLDERSEQUITYANDSHAREBASEDCOMPENSATIONAdditionalInformationDetails STOCKHOLDERS’ EQUITY AND SHARE-BASED COMPENSATION - Additional Information (Details) Details 61 false false R62.htm 9955547 - Disclosure - STOCKHOLDERS’ EQUITY AND SHARE-BASED COMPENSATION - Effects of Stock-Based Compensation Expense Related to Stock-Based Awards to Employees and Non-Employees (Details) Sheet http://www.macomtech.com/role/STOCKHOLDERSEQUITYANDSHAREBASEDCOMPENSATIONEffectsofStockBasedCompensationExpenseRelatedtoStockBasedAwardstoEmployeesandNonEmployeesDetails STOCKHOLDERS’ EQUITY AND SHARE-BASED COMPENSATION - Effects of Stock-Based Compensation Expense Related to Stock-Based Awards to Employees and Non-Employees (Details) Details 62 false false R63.htm 9955548 - Disclosure - STOCKHOLDERS’ EQUITY AND SHARE-BASED COMPENSATION - Summary of Restricted Stock, Restricted Stock Unit and Performance-based Restricted Stock Unit Activity (Details) Sheet http://www.macomtech.com/role/STOCKHOLDERSEQUITYANDSHAREBASEDCOMPENSATIONSummaryofRestrictedStockRestrictedStockUnitandPerformancebasedRestrictedStockUnitActivityDetails STOCKHOLDERS’ EQUITY AND SHARE-BASED COMPENSATION - Summary of Restricted Stock, Restricted Stock Unit and Performance-based Restricted Stock Unit Activity (Details) Details 63 false false R64.htm 9955549 - Disclosure - STOCKHOLDERS’ EQUITY AND SHARE-BASED COMPENSATION - Fair Value of Market-Based PRSUs (Details) Sheet http://www.macomtech.com/role/STOCKHOLDERSEQUITYANDSHAREBASEDCOMPENSATIONFairValueofMarketBasedPRSUsDetails STOCKHOLDERS’ EQUITY AND SHARE-BASED COMPENSATION - Fair Value of Market-Based PRSUs (Details) Details 64 false false R65.htm 9955550 - Disclosure - INCOME TAXES (Details) Sheet http://www.macomtech.com/role/INCOMETAXESDetails INCOME TAXES (Details) Details http://www.macomtech.com/role/INCOMETAXESTables 65 false false R66.htm 9955551 - Disclosure - SUPPLEMENTAL CASH FLOW INFORMATION - Schedule of Supplemental Cash Flow Information Regarding Non-cash Investing and Financing Activities (Details) Sheet http://www.macomtech.com/role/SUPPLEMENTALCASHFLOWINFORMATIONScheduleofSupplementalCashFlowInformationRegardingNoncashInvestingandFinancingActivitiesDetails SUPPLEMENTAL CASH FLOW INFORMATION - Schedule of Supplemental Cash Flow Information Regarding Non-cash Investing and Financing Activities (Details) Details 66 false false R67.htm 9955552 - Disclosure - SEGMENT REPORTING, GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION - Additional Information (Details) Sheet http://www.macomtech.com/role/SEGMENTREPORTINGGEOGRAPHICANDSIGNIFICANTCUSTOMERINFORMATIONAdditionalInformationDetails SEGMENT REPORTING, GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION - Additional Information (Details) Details 67 false false R68.htm 9955553 - Disclosure - SEGMENT REPORTING, GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION - Segment (Details) Sheet http://www.macomtech.com/role/SEGMENTREPORTINGGEOGRAPHICANDSIGNIFICANTCUSTOMERINFORMATIONSegmentDetails SEGMENT REPORTING, GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION - Segment (Details) Details http://www.macomtech.com/role/SEGMENTREPORTINGGEOGRAPHICANDSIGNIFICANTCUSTOMERINFORMATIONTables 68 false false R69.htm 9955554 - Disclosure - SEGMENT REPORTING, GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION - Summary of Different Geographic Regions (Details) Sheet http://www.macomtech.com/role/SEGMENTREPORTINGGEOGRAPHICANDSIGNIFICANTCUSTOMERINFORMATIONSummaryofDifferentGeographicRegionsDetails SEGMENT REPORTING, GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION - Summary of Different Geographic Regions (Details) Details 69 false false R70.htm 9955555 - Disclosure - SEGMENT REPORTING, GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION - Summary of Customer Concentrations as Percentage of Revenue and Accounts Receivable (Details) Sheet http://www.macomtech.com/role/SEGMENTREPORTINGGEOGRAPHICANDSIGNIFICANTCUSTOMERINFORMATIONSummaryofCustomerConcentrationsasPercentageofRevenueandAccountsReceivableDetails SEGMENT REPORTING, GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION - Summary of Customer Concentrations as Percentage of Revenue and Accounts Receivable (Details) Details 70 false false R71.htm 9955556 - Disclosure - RELATED-PARTY TRANSACTIONS (Details) Sheet http://www.macomtech.com/role/RELATEDPARTYTRANSACTIONSDetails RELATED-PARTY TRANSACTIONS (Details) Details http://www.macomtech.com/role/RELATEDPARTYTRANSACTIONS 71 false false All Reports Book All Reports mtsi-20260703.htm mtsi-20260703.xsd mtsi-20260703_cal.xml mtsi-20260703_def.xml mtsi-20260703_lab.xml mtsi-20260703_pre.xml http://fasb.org/us-gaap/2025 http://xbrl.sec.gov/dei/2025 http://xbrl.sec.gov/ecd/2025 true true