3.24.2.u1 html 217 318 1 false 73 0 false 9 false false R1.htm 0000001 - Document - Cover Sheet http://www.netscout.com/role/Cover Cover Cover 1 false false R2.htm 9952151 - Statement - Consolidated Balance Sheets Sheet http://www.netscout.com/role/ConsolidatedBalanceSheets Consolidated Balance Sheets Statements 2 false false R3.htm 9952152 - Statement - Consolidated Balance Sheets (Parenthetical) Sheet http://www.netscout.com/role/ConsolidatedBalanceSheetsParenthetical Consolidated Balance Sheets (Parenthetical) Statements 3 false false R4.htm 9952153 - Statement - Consolidated Statements of Operations Sheet http://www.netscout.com/role/ConsolidatedStatementsofOperations Consolidated Statements of Operations Statements 4 false false R5.htm 9952154 - Statement - Consolidated Statements of Comprehensive Loss Sheet http://www.netscout.com/role/ConsolidatedStatementsofComprehensiveLoss Consolidated Statements of Comprehensive Loss Statements 5 false false R6.htm 9952155 - Statement - Consolidated Statements of Comprehensive Loss (Parenthetical) Sheet http://www.netscout.com/role/ConsolidatedStatementsofComprehensiveLossParenthetical Consolidated Statements of Comprehensive Loss (Parenthetical) Statements 6 false false R7.htm 9952156 - Statement - Consolidated Statements of Stockholders' Equity Sheet http://www.netscout.com/role/ConsolidatedStatementsofStockholdersEquity Consolidated Statements of Stockholders' Equity Statements 7 false false R8.htm 9952157 - Statement - Consolidated Statements of Cash Flows Sheet http://www.netscout.com/role/ConsolidatedStatementsofCashFlows Consolidated Statements of Cash Flows Statements 8 false false R9.htm 9952158 - Disclosure - BASIS OF PRESENTATION Sheet http://www.netscout.com/role/BASISOFPRESENTATION BASIS OF PRESENTATION Notes 9 false false R10.htm 9952159 - Disclosure - REVENUE Sheet http://www.netscout.com/role/REVENUE REVENUE Notes 10 false false R11.htm 9952160 - Disclosure - CONCENTRATION OF CREDIT RISK AND SIGNIFICANT CUSTOMERS Sheet http://www.netscout.com/role/CONCENTRATIONOFCREDITRISKANDSIGNIFICANTCUSTOMERS CONCENTRATION OF CREDIT RISK AND SIGNIFICANT CUSTOMERS Notes 11 false false R12.htm 9952161 - Disclosure - SHARE-BASED COMPENSATION Sheet http://www.netscout.com/role/SHAREBASEDCOMPENSATION SHARE-BASED COMPENSATION Notes 12 false false R13.htm 9952162 - Disclosure - CASH, CASH EQUIVALENTS, MARKETABLE SECURITIES AND INVESTMENTS Sheet http://www.netscout.com/role/CASHCASHEQUIVALENTSMARKETABLESECURITIESANDINVESTMENTS CASH, CASH EQUIVALENTS, MARKETABLE SECURITIES AND INVESTMENTS Notes 13 false false R14.htm 9952163 - Disclosure - FAIR VALUE MEASUREMENTS Sheet http://www.netscout.com/role/FAIRVALUEMEASUREMENTS FAIR VALUE MEASUREMENTS Notes 14 false false R15.htm 9952164 - Disclosure - INVENTORIES AND DEFERRED COSTS Sheet http://www.netscout.com/role/INVENTORIESANDDEFERREDCOSTS INVENTORIES AND DEFERRED COSTS Notes 15 false false R16.htm 9952165 - Disclosure - DIVESTITURES Sheet http://www.netscout.com/role/DIVESTITURES DIVESTITURES Notes 16 false false R17.htm 9952166 - Disclosure - GOODWILL AND INTANGIBLE ASSETS Sheet http://www.netscout.com/role/GOODWILLANDINTANGIBLEASSETS GOODWILL AND INTANGIBLE ASSETS Notes 17 false false R18.htm 9952167 - Disclosure - DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES Sheet http://www.netscout.com/role/DERIVATIVEINSTRUMENTSANDHEDGINGACTIVITIES DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES Notes 18 false false R19.htm 9952168 - Disclosure - LONG-TERM DEBT Sheet http://www.netscout.com/role/LONGTERMDEBT LONG-TERM DEBT Notes 19 false false R20.htm 9952169 - Disclosure - RESTRUCTURING CHARGES Sheet http://www.netscout.com/role/RESTRUCTURINGCHARGES RESTRUCTURING CHARGES Notes 20 false false R21.htm 9952170 - Disclosure - LEASES Sheet http://www.netscout.com/role/LEASES LEASES Notes 21 false false R22.htm 9952171 - Disclosure - COMMITMENTS AND CONTINGENCIES Sheet http://www.netscout.com/role/COMMITMENTSANDCONTINGENCIES COMMITMENTS AND CONTINGENCIES Notes 22 false false R23.htm 9952172 - Disclosure - PENSION BENEFIT PLANS Sheet http://www.netscout.com/role/PENSIONBENEFITPLANS PENSION BENEFIT PLANS Notes 23 false false R24.htm 9952173 - Disclosure - TREASURY STOCK Sheet http://www.netscout.com/role/TREASURYSTOCK TREASURY STOCK Notes 24 false false R25.htm 9952174 - Disclosure - NET LOSS PER SHARE Sheet http://www.netscout.com/role/NETLOSSPERSHARE NET LOSS PER SHARE Notes 25 false false R26.htm 9952175 - Disclosure - INCOME TAXES Sheet http://www.netscout.com/role/INCOMETAXES INCOME TAXES Notes 26 false false R27.htm 9952176 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION Sheet http://www.netscout.com/role/SEGMENTANDGEOGRAPHICINFORMATION SEGMENT AND GEOGRAPHIC INFORMATION Notes 27 false false R28.htm 995410 - Disclosure - Pay vs Performance Disclosure Sheet http://xbrl.sec.gov/ecd/role/PvpDisclosure Pay vs Performance Disclosure Notes 28 false false R29.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 29 false false R30.htm 9954471 - Disclosure - BASIS OF PRESENTATION (Policies) Sheet http://www.netscout.com/role/BASISOFPRESENTATIONPolicies BASIS OF PRESENTATION (Policies) Policies 30 false false R31.htm 9954472 - Disclosure - REVENUE (Tables) Sheet http://www.netscout.com/role/REVENUETables REVENUE (Tables) Tables http://www.netscout.com/role/REVENUE 31 false false R32.htm 9954473 - Disclosure - SHARE-BASED COMPENSATION (Tables) Sheet http://www.netscout.com/role/SHAREBASEDCOMPENSATIONTables SHARE-BASED COMPENSATION (Tables) Tables http://www.netscout.com/role/SHAREBASEDCOMPENSATION 32 false false R33.htm 9954474 - Disclosure - CASH, CASH EQUIVALENTS, MARKETABLE SECURITIES AND INVESTMENTS (Tables) Sheet http://www.netscout.com/role/CASHCASHEQUIVALENTSMARKETABLESECURITIESANDINVESTMENTSTables CASH, CASH EQUIVALENTS, MARKETABLE SECURITIES AND INVESTMENTS (Tables) Tables http://www.netscout.com/role/CASHCASHEQUIVALENTSMARKETABLESECURITIESANDINVESTMENTS 33 false false R34.htm 9954475 - Disclosure - FAIR VALUE MEASUREMENTS (Tables) Sheet http://www.netscout.com/role/FAIRVALUEMEASUREMENTSTables FAIR VALUE MEASUREMENTS (Tables) Tables http://www.netscout.com/role/FAIRVALUEMEASUREMENTS 34 false false R35.htm 9954476 - Disclosure - INVENTORIES AND DEFERRED COSTS (Tables) Sheet http://www.netscout.com/role/INVENTORIESANDDEFERREDCOSTSTables INVENTORIES AND DEFERRED COSTS (Tables) Tables http://www.netscout.com/role/INVENTORIESANDDEFERREDCOSTS 35 false false R36.htm 9954477 - Disclosure - GOODWILL AND INTANGIBLE ASSETS (Tables) Sheet http://www.netscout.com/role/GOODWILLANDINTANGIBLEASSETSTables GOODWILL AND INTANGIBLE ASSETS (Tables) Tables http://www.netscout.com/role/GOODWILLANDINTANGIBLEASSETS 36 false false R37.htm 9954478 - Disclosure - DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Tables) Sheet http://www.netscout.com/role/DERIVATIVEINSTRUMENTSANDHEDGINGACTIVITIESTables DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Tables) Tables http://www.netscout.com/role/DERIVATIVEINSTRUMENTSANDHEDGINGACTIVITIES 37 false false R38.htm 9954479 - Disclosure - RESTRUCTURING CHARGES (Tables) Sheet http://www.netscout.com/role/RESTRUCTURINGCHARGESTables RESTRUCTURING CHARGES (Tables) Tables http://www.netscout.com/role/RESTRUCTURINGCHARGES 38 false false R39.htm 9954480 - Disclosure - LEASES (Tables) Sheet http://www.netscout.com/role/LEASESTables LEASES (Tables) Tables http://www.netscout.com/role/LEASES 39 false false R40.htm 9954481 - Disclosure - PENSION BENEFIT PLANS (Tables) Sheet http://www.netscout.com/role/PENSIONBENEFITPLANSTables PENSION BENEFIT PLANS (Tables) Tables http://www.netscout.com/role/PENSIONBENEFITPLANS 40 false false R41.htm 9954482 - Disclosure - NET LOSS PER SHARE (Tables) Sheet http://www.netscout.com/role/NETLOSSPERSHARETables NET LOSS PER SHARE (Tables) Tables http://www.netscout.com/role/NETLOSSPERSHARE 41 false false R42.htm 9954483 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION (Tables) Sheet http://www.netscout.com/role/SEGMENTANDGEOGRAPHICINFORMATIONTables SEGMENT AND GEOGRAPHIC INFORMATION (Tables) Tables http://www.netscout.com/role/SEGMENTANDGEOGRAPHICINFORMATION 42 false false R43.htm 9954484 - Disclosure - BASIS OF PRESENTATION (Details) Sheet http://www.netscout.com/role/BASISOFPRESENTATIONDetails BASIS OF PRESENTATION (Details) Details http://www.netscout.com/role/BASISOFPRESENTATIONPolicies 43 false false R44.htm 9954485 - Disclosure - REVENUE - Narrative (Details) Sheet http://www.netscout.com/role/REVENUENarrativeDetails REVENUE - Narrative (Details) Details 44 false false R45.htm 9954486 - Disclosure - REVENUE - Performance Obligations (Details) Sheet http://www.netscout.com/role/REVENUEPerformanceObligationsDetails REVENUE - Performance Obligations (Details) Details 45 false false R46.htm 9954487 - Disclosure - REVENUE - Schedule of Allowance for Credit Losses (Details) Sheet http://www.netscout.com/role/REVENUEScheduleofAllowanceforCreditLossesDetails REVENUE - Schedule of Allowance for Credit Losses (Details) Details 46 false false R47.htm 9954488 - Disclosure - SHARE-BASED COMPENSATION - Narrative (Details) Sheet http://www.netscout.com/role/SHAREBASEDCOMPENSATIONNarrativeDetails SHARE-BASED COMPENSATION - Narrative (Details) Details 47 false false R48.htm 9954489 - Disclosure - SHARE-BASED COMPENSATION - Schedule of Share-Based Compensation Cost and Expense (Details) Sheet http://www.netscout.com/role/SHAREBASEDCOMPENSATIONScheduleofShareBasedCompensationCostandExpenseDetails SHARE-BASED COMPENSATION - Schedule of Share-Based Compensation Cost and Expense (Details) Details 48 false false R49.htm 9954490 - Disclosure - CASH, CASH EQUIVALENTS, MARKETABLE SECURITIES AND INVESTMENTS- Schedule of Marketable Securities (Details) Sheet http://www.netscout.com/role/CASHCASHEQUIVALENTSMARKETABLESECURITIESANDINVESTMENTSScheduleofMarketableSecuritiesDetails CASH, CASH EQUIVALENTS, MARKETABLE SECURITIES AND INVESTMENTS- Schedule of Marketable Securities (Details) Details 49 false false R50.htm 9954491 - Disclosure - CASH, CASH EQUIVALENTS, MARKETABLE SECURITIES AND INVESTMENTS - Schedule of Contractual Maturities of Marketable Securities (Details) Sheet http://www.netscout.com/role/CASHCASHEQUIVALENTSMARKETABLESECURITIESANDINVESTMENTSScheduleofContractualMaturitiesofMarketableSecuritiesDetails CASH, CASH EQUIVALENTS, MARKETABLE SECURITIES AND INVESTMENTS - Schedule of Contractual Maturities of Marketable Securities (Details) Details 50 false false R51.htm 9954492 - Disclosure - CASH, CASH EQUIVALENTS, MARKETABLE SECURITIES AND INVESTMENTS - Narrative (Details) Sheet http://www.netscout.com/role/CASHCASHEQUIVALENTSMARKETABLESECURITIESANDINVESTMENTSNarrativeDetails CASH, CASH EQUIVALENTS, MARKETABLE SECURITIES AND INVESTMENTS - Narrative (Details) Details http://www.netscout.com/role/CASHCASHEQUIVALENTSMARKETABLESECURITIESANDINVESTMENTSTables 51 false false R52.htm 9954493 - Disclosure - FAIR VALUE MEASUREMENTS - Schedule of Financial Assets and Liabilities (Details) Sheet http://www.netscout.com/role/FAIRVALUEMEASUREMENTSScheduleofFinancialAssetsandLiabilitiesDetails FAIR VALUE MEASUREMENTS - Schedule of Financial Assets and Liabilities (Details) Details 52 false false R53.htm 9954494 - Disclosure - INVENTORIES AND DEFERRED COSTS (Details) Sheet http://www.netscout.com/role/INVENTORIESANDDEFERREDCOSTSDetails INVENTORIES AND DEFERRED COSTS (Details) Details http://www.netscout.com/role/INVENTORIESANDDEFERREDCOSTSTables 53 false false R54.htm 9954495 - Disclosure - DIVESTITURES (Details) Sheet http://www.netscout.com/role/DIVESTITURESDetails DIVESTITURES (Details) Details http://www.netscout.com/role/DIVESTITURES 54 false false R55.htm 9954496 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) Sheet http://www.netscout.com/role/GOODWILLANDINTANGIBLEASSETSNarrativeDetails GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) Details 55 false false R56.htm 9954497 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Schedule of Changes in Carrying Amount of Goodwill (Details) Sheet http://www.netscout.com/role/GOODWILLANDINTANGIBLEASSETSScheduleofChangesinCarryingAmountofGoodwillDetails GOODWILL AND INTANGIBLE ASSETS - Schedule of Changes in Carrying Amount of Goodwill (Details) Details 56 false false R57.htm 9954498 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Schedule of Intangible Assets (Details) Sheet http://www.netscout.com/role/GOODWILLANDINTANGIBLEASSETSScheduleofIntangibleAssetsDetails GOODWILL AND INTANGIBLE ASSETS - Schedule of Intangible Assets (Details) Details 57 false false R58.htm 9954499 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Schedule of Amortization Expense (Details) Sheet http://www.netscout.com/role/GOODWILLANDINTANGIBLEASSETSScheduleofAmortizationExpenseDetails GOODWILL AND INTANGIBLE ASSETS - Schedule of Amortization Expense (Details) Details 58 false false R59.htm 9954500 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Schedule of Expected Future Amortization Expense (Details) Sheet http://www.netscout.com/role/GOODWILLANDINTANGIBLEASSETSScheduleofExpectedFutureAmortizationExpenseDetails GOODWILL AND INTANGIBLE ASSETS - Schedule of Expected Future Amortization Expense (Details) Details 59 false false R60.htm 9954501 - Disclosure - DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Narrative (Details) Sheet http://www.netscout.com/role/DERIVATIVEINSTRUMENTSANDHEDGINGACTIVITIESNarrativeDetails DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Narrative (Details) Details 60 false false R61.htm 9954502 - Disclosure - DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Schedule of Notional Amounts and Fair Values of Derivative Instruments on Consolidated Balance Sheet (Details) Sheet http://www.netscout.com/role/DERIVATIVEINSTRUMENTSANDHEDGINGACTIVITIESScheduleofNotionalAmountsandFairValuesofDerivativeInstrumentsonConsolidatedBalanceSheetDetails DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Schedule of Notional Amounts and Fair Values of Derivative Instruments on Consolidated Balance Sheet (Details) Details 61 false false R62.htm 9954503 - Disclosure - DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Schedule of Effect of Foreign Exchange Forward Contracts on Other Comprehensive Income and Results of Operations (Details) Sheet http://www.netscout.com/role/DERIVATIVEINSTRUMENTSANDHEDGINGACTIVITIESScheduleofEffectofForeignExchangeForwardContractsonOtherComprehensiveIncomeandResultsofOperationsDetails DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Schedule of Effect of Foreign Exchange Forward Contracts on Other Comprehensive Income and Results of Operations (Details) Details 62 false false R63.htm 9954504 - Disclosure - LONG-TERM DEBT (Details) Sheet http://www.netscout.com/role/LONGTERMDEBTDetails LONG-TERM DEBT (Details) Details http://www.netscout.com/role/LONGTERMDEBT 63 false false R64.htm 9954505 - Disclosure - RESTRUCTURING CHARGES - Narrative (Details) Sheet http://www.netscout.com/role/RESTRUCTURINGCHARGESNarrativeDetails RESTRUCTURING CHARGES - Narrative (Details) Details 64 false false R65.htm 9954506 - Disclosure - RESTRUCTURING CHARGES - Schedule of Restructuring Liability (Details) Sheet http://www.netscout.com/role/RESTRUCTURINGCHARGESScheduleofRestructuringLiabilityDetails RESTRUCTURING CHARGES - Schedule of Restructuring Liability (Details) Details 65 false false R66.htm 9954507 - Disclosure - LEASES - Narrative (Details) Sheet http://www.netscout.com/role/LEASESNarrativeDetails LEASES - Narrative (Details) Details 66 false false R67.htm 9954508 - Disclosure - LEASES - Schedule of Components of Operating Lease Cost (Details) Sheet http://www.netscout.com/role/LEASESScheduleofComponentsofOperatingLeaseCostDetails LEASES - Schedule of Components of Operating Lease Cost (Details) Details 67 false false R68.htm 9954509 - Disclosure - LEASES - Schedule of Supplemental Cash Flow Information (Details) Sheet http://www.netscout.com/role/LEASESScheduleofSupplementalCashFlowInformationDetails LEASES - Schedule of Supplemental Cash Flow Information (Details) Details 68 false false R69.htm 9954510 - Disclosure - LEASES - Schedule of Future Minimum Payments Under Non-Cancellable Leases (Details) Sheet http://www.netscout.com/role/LEASESScheduleofFutureMinimumPaymentsUnderNonCancellableLeasesDetails LEASES - Schedule of Future Minimum Payments Under Non-Cancellable Leases (Details) Details 69 false false R70.htm 9954511 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details) Sheet http://www.netscout.com/role/COMMITMENTSANDCONTINGENCIESDetails COMMITMENTS AND CONTINGENCIES (Details) Details http://www.netscout.com/role/COMMITMENTSANDCONTINGENCIES 70 false false R71.htm 9954512 - Disclosure - PENSION BENEFIT PLANS - Narrative (Details) Sheet http://www.netscout.com/role/PENSIONBENEFITPLANSNarrativeDetails PENSION BENEFIT PLANS - Narrative (Details) Details 71 false false R72.htm 9954513 - Disclosure - PENSION BENEFIT PLANS - Schedule of Net Periodic Pension Costs (Details) Sheet http://www.netscout.com/role/PENSIONBENEFITPLANSScheduleofNetPeriodicPensionCostsDetails PENSION BENEFIT PLANS - Schedule of Net Periodic Pension Costs (Details) Details 72 false false R73.htm 9954514 - Disclosure - TREASURY STOCK (Details) Sheet http://www.netscout.com/role/TREASURYSTOCKDetails TREASURY STOCK (Details) Details http://www.netscout.com/role/TREASURYSTOCK 73 false false R74.htm 9954515 - Disclosure - NET LOSS PER SHARE - Schedule of Calculations of EPS (Details) Sheet http://www.netscout.com/role/NETLOSSPERSHAREScheduleofCalculationsofEPSDetails NET LOSS PER SHARE - Schedule of Calculations of EPS (Details) Details 74 false false R75.htm 9954516 - Disclosure - NET LOSS PER SHARE - Schedule of Antidilutive Securities Excluded from Computation (Details) Sheet http://www.netscout.com/role/NETLOSSPERSHAREScheduleofAntidilutiveSecuritiesExcludedfromComputationDetails NET LOSS PER SHARE - Schedule of Antidilutive Securities Excluded from Computation (Details) Details 75 false false R76.htm 9954517 - Disclosure - INCOME TAXES (Details) Sheet http://www.netscout.com/role/INCOMETAXESDetails INCOME TAXES (Details) Details http://www.netscout.com/role/INCOMETAXES 76 false false R77.htm 9954518 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION - Narrative (Details) Sheet http://www.netscout.com/role/SEGMENTANDGEOGRAPHICINFORMATIONNarrativeDetails SEGMENT AND GEOGRAPHIC INFORMATION - Narrative (Details) Details 77 false false R78.htm 9954519 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION - Schedule of Total Revenue by Geography (Details) Sheet http://www.netscout.com/role/SEGMENTANDGEOGRAPHICINFORMATIONScheduleofTotalRevenuebyGeographyDetails SEGMENT AND GEOGRAPHIC INFORMATION - Schedule of Total Revenue by Geography (Details) Details 78 false false All Reports Book All Reports ntct-20240630.htm ntct-20240630.xsd ntct-20240630_cal.xml ntct-20240630_def.xml ntct-20240630_lab.xml ntct-20240630_pre.xml http://fasb.org/srt/2024 http://fasb.org/us-gaap/2024 http://xbrl.sec.gov/dei/2024 http://xbrl.sec.gov/ecd/2024 true true