$NTCT
NETSCOUT SYSTEMS INC Stock $ntct

$ntct Overview Financials Valuation SEC Filings Company Website

2013 Q1 Form 10-K Financial Statement

#000119312513235038 Filed on May 24, 2013

Income Statement

Concept	2013 Q1	2012 Q1	2011 Q4
Revenue	$98.08M	$89.46M	$83.30M
YoY Change	9.63%	14.69%	9.17%
Cost Of Revenue	$21.00M	$19.00M	$17.24M
YoY Change	10.53%	15.85%	7.07%
Gross Profit	$77.04M	$70.50M	$66.06M
YoY Change	9.27%	14.45%	9.73%
Gross Profit Margin	78.55%	78.81%	79.3%
Selling, General & Admin	$37.50M	$35.80M	$34.08M
YoY Change	4.75%	7.51%	2.04%
% of Gross Profit	48.68%	50.78%	51.59%
Research & Development	$16.90M	$13.40M	$13.59M
YoY Change	26.12%	22.94%	34.58%
% of Gross Profit	21.94%	19.01%	20.58%
Depreciation & Amortization	$3.700M	$4.400M	$4.200M
YoY Change	-15.91%	25.71%	20.0%
% of Gross Profit	4.8%	6.24%	6.36%
Operating Expenses	$55.20M	$49.80M	$48.61M
YoY Change	10.84%	11.66%	10.48%
Operating Profit	$21.84M	$20.70M	$17.45M
YoY Change	5.48%	21.78%	7.69%
Interest Expense	-$100.0K	-$200.0K	$472.0K
YoY Change	-50.0%	-60.0%	-218.0%
% of Operating Profit	-0.46%	-0.97%	2.71%
Other Income/Expense, Net	-$100.0K	-$100.0K	-$1.208M
YoY Change	0.0%
Pretax Income	$21.60M	$20.10M	$16.24M
YoY Change	7.46%	21.82%	2.13%
Income Tax	$7.100M	$7.200M	$6.207M
% Of Pretax Income	32.87%	35.82%	38.23%
Net Earnings	$14.55M	$12.95M	$10.03M
YoY Change	12.4%	19.88%	-9.63%
Net Earnings / Revenue	14.84%	14.47%	12.04%
Basic Earnings Per Share			$0.24
Diluted Earnings Per Share	$0.34	$0.30	$0.24
COMMON SHARES
Basic Shares Outstanding	41.61M shares		41.52M shares
Diluted Shares Outstanding			42.30M shares

Balance Sheet

Concept	2013 Q1	2012 Q1	2011 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$137.3M	$196.9M	$163.9M
YoY Change	-30.27%	-1.84%	-11.83%
Cash & Equivalents	$99.93M	$117.3M	$102.8M
Short-Term Investments	$37.30M	$79.60M	$61.20M
Other Short-Term Assets	$18.60M	$10.40M	$9.300M
YoY Change	78.85%	26.83%	25.68%
Inventory	$7.563M	$8.021M	$9.400M
Prepaid Expenses
Receivables	$73.90M	$69.80M	$49.60M
Other Receivables	$0.00	$4.600M	$4.400M
Total Short-Term Assets	$237.3M	$289.7M	$236.7M
YoY Change	-18.08%	2.11%	-8.61%
LONG-TERM ASSETS
Property, Plant & Equipment	$19.68M	$16.46M	$15.20M
YoY Change	19.57%	21.9%	22.58%
Goodwill	$202.5M	$170.4M
YoY Change	18.82%	32.93%
Intangibles	$63.83M	$54.69M
YoY Change	16.72%
Long-Term Investments	$16.80M	$16.60M	$28.40M
YoY Change	1.2%	-40.5%	16.87%
Other Assets	$2.872M	$2.008M	$24.30M
YoY Change	43.03%	-92.45%	-22.36%
Total Long-Term Assets	$314.9M	$278.1M	$294.2M
YoY Change	13.23%	14.01%	19.89%
TOTAL ASSETS
Total Short-Term Assets	$237.3M	$289.7M	$236.7M
Total Long-Term Assets	$314.9M	$278.1M	$294.2M
Total Assets	$552.2M	$567.8M	$530.9M
YoY Change	-2.74%	7.61%	5.25%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$10.16M	$7.539M	$6.600M
YoY Change	34.78%	-22.28%	20.0%
Accrued Expenses	$39.60M	$29.30M	$27.70M
YoY Change	35.15%	10.15%	13.99%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due		$0.00	$0.00
YoY Change		-100.0%	-100.0%
Total Short-Term Liabilities	$145.2M	$134.1M	$120.1M
YoY Change	8.26%	-1.84%	-5.36%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$62.00M	$62.00M
YoY Change	-100.0%	16.76%	8.96%
Other Long-Term Liabilities	$2.249M	$2.347M	$21.50M
YoY Change	-4.18%	-87.17%	27.22%
Total Long-Term Liabilities	$2.249M	$64.35M	$83.50M
YoY Change	-96.5%	-9.88%	13.14%
TOTAL LIABILITIES
Total Short-Term Liabilities	$145.2M	$134.1M	$120.1M
Total Long-Term Liabilities	$2.249M	$64.35M	$83.50M
Total Liabilities	$180.3M	$225.4M	$205.2M
YoY Change	-20.02%	8.36%	2.24%
SHAREHOLDERS EQUITY
Retained Earnings	$201.5M	$160.9M
YoY Change	25.25%
Common Stock	$49.00K	$48.00K
YoY Change	2.08%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$83.48M	$56.03M
YoY Change	48.99%
Treasury Stock Shares	7.541M shares	6.372M shares
Shareholders Equity	$371.9M	$342.4M	$325.7M
YoY Change
Total Liabilities & Shareholders Equity	$552.2M	$567.8M	$530.9M
YoY Change	-2.74%	7.61%	5.25%

Cashflow Statement

Concept	2013 Q1	2012 Q1	2011 Q4
OPERATING ACTIVITIES
Net Income	$14.55M	$12.95M	$10.03M
YoY Change	12.4%	19.88%	-9.63%
Depreciation, Depletion And Amortization	$3.700M	$4.400M	$4.200M
YoY Change	-15.91%	25.71%	20.0%
Cash From Operating Activities	$28.40M	$24.40M	$26.00M
YoY Change	16.39%	8.44%	84.4%
INVESTING ACTIVITIES
Capital Expenditures	-$3.600M	-$3.400M	-$2.100M
YoY Change	5.88%	3.03%	31.25%
Acquisitions
YoY Change
Other Investing Activities	-$8.300M	-$4.800M	-$24.20M
YoY Change	72.92%	-93.34%	250.72%
Cash From Investing Activities	-$11.90M	-$8.200M	-$26.30M
YoY Change	45.12%	-89.12%	209.41%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-7.500M	-1.700M	-700.0K
YoY Change	341.18%	13.33%	-136.84%
NET CHANGE
Cash From Operating Activities	28.40M	24.40M	26.00M
Cash From Investing Activities	-11.90M	-8.200M	-26.30M
Cash From Financing Activities	-7.500M	-1.700M	-700.0K
Net Change In Cash	9.000M	14.50M	-1.000M
YoY Change	-37.93%	-126.65%	-113.33%
FREE CASH FLOW
Cash From Operating Activities	$28.40M	$24.40M	$26.00M
Capital Expenditures	-$3.600M	-$3.400M	-$2.100M
Free Cash Flow	$32.00M	$27.80M	$28.10M
YoY Change	15.11%	7.75%	78.98%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2006Q3	ntct	Stock Repurchase Program Number Of Additional Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfAdditionalSharesAuthorizedToBeRepurchased	3000000	shares
CY2001Q3	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	1000000	shares
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CY2010Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	63322000
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CY2010Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	813741	shares
CY2011Q1	us-gaap	Goodwill Goodwill	128177000
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CY2011Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	67168000
CY2011Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1418859	shares
CY2012Q1	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	6162000
CY2012Q1	us-gaap	Goodwill Goodwill	170384000
CY2012Q1	us-gaap	Fifo Inventory Amount FIFOInventoryAmount	8021000
CY2012Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	63648000
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CY2013Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Impairment Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses	0
CY2013Q1	us-gaap	Liabilities Liabilities	180273000
CY2013Q1	us-gaap	Accounts Payable Current AccountsPayableCurrent	10161000
CY2013Q1	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	37338000
CY2013Q1	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	5582000
CY2013Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	14571000
CY2013Q1	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	21934000
CY2013Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	370000
CY2013Q1	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	26096000
CY2013Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	6730000
CY2013Q1	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	95055000
CY2013Q1	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	352000
CY2013Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	17.85
CY2013Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2249000
CY2013Q1	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	3647000
CY2013Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2013Q1	us-gaap	Derivative Assets DerivativeAssets	71000
CY2013Q1	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	2284000
CY2013Q1	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	99930000
CY2013Q1	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	9211000
CY2013Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	201461000
CY2013Q1	us-gaap	Assets Assets	552176000
CY2013Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	6.63
CY2013Q1	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	16500000
CY2013Q1	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	941000
CY2013Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves	1325000
CY2013Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	73900000
CY2013Q1	us-gaap	Inventory Net InventoryNet	7563000
CY2013Q1	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	154162000
CY2013Q1	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2013Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	552176000
CY2013Q1	us-gaap	Treasury Stock Value TreasuryStockValue	83480000
CY2013Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	99930000
CY2013Q1	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	80060000
CY2013Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	49007491	shares
CY2013Q1	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	71000000
CY2013Q1	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	0
CY2013Q1	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	63827000
CY2013Q1	us-gaap	Derivative Financial Instruments Liabilities Fair Value Disclosure DerivativeFinancialInstrumentsLiabilitiesFairValueDisclosure	249000
CY2013Q1	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	13770000
CY2013Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	671000
CY2013Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1871148	shares
CY2013Q1	us-gaap	Business Acquisition Contingent Consideration At Fair Value Noncurrent BusinessAcquisitionContingentConsiderationAtFairValueNoncurrent	4248000
CY2013Q1	us-gaap	Inventory Raw Materials InventoryRawMaterials	3986000
CY2013Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	5756000
CY2013Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	6855000
CY2013Q1	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	16823000
CY2013Q1	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	1757000
CY2013Q1	us-gaap	Liabilities Current LiabilitiesCurrent	145171000
CY2013Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	971000
CY2013Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	154000	shares
CY2013Q1	us-gaap	Common Stock Value CommonStockValue	49000
CY2013Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2013Q1	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	25907000
CY2013Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	34833000
CY2013Q1	us-gaap	Assets Current AssetsCurrent	237312000
CY2013Q1	us-gaap	Inventory Finished Goods InventoryFinishedGoods	3305000
CY2013Q1	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	50700000
CY2013Q1	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding		shares
CY2013Q1	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued		shares
CY2013Q1	us-gaap	Preferred Stock Value PreferredStockValue	0
CY2013Q1	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	37183000
CY2013Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	55790000
CY2013Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	19678000
CY2013Q1	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	253202000
CY2013Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	0
CY2013Q1	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	54161000
CY2013Q1	ntct	Deferred Tax Liabilities Depreciation DeferredTaxLiabilitiesDepreciation	113000
CY2013Q1	ntct	Deferred Tax Assets Depreciation DeferredTaxAssetsDepreciation	0
CY2013Q1	ntct	Unrecognized Accounts Receivable And Deferred Revenue UnrecognizedAccountsReceivableAndDeferredRevenue	1000000
CY2013Q1	ntct	Business Acquisition Purchase Price Allocation Current Liabilities Contractual Non Compliance Liability BusinessAcquisitionPurchasePriceAllocationCurrentLiabilitiesContractualNonComplianceLiability	246000
CY2013Q2	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	41385750	shares
CY2011Q4	ntct	Line Of Credit Facility Increase In Amount Term LineOfCreditFacilityIncreaseInAmountTerm	90	D
CY2012Q4	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	62000000
CY2011	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0
CY2011	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	0
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	6825000
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	58065000
CY2011	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	0
CY2011	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	159948000
CY2011	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	594000	shares
CY2011	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	2583000
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	623000
CY2011	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	-0.030	pure
CY2011	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	11250000
CY2011	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	8000
CY2011	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	56293000
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	15569000
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	38406000
CY2011	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	979000
CY2011	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	8238000
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	928596	shares
CY2011	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	6439000
CY2011	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	3459000
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	13877000
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	6439000
CY2011	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	67189000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.011	pure
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.87
CY2011	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	19.42
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	34000
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	2967000
CY2011	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	450432	shares
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0
CY2011	us-gaap	Stock Issued1 StockIssued1	0
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	3285000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	-0.021	pure
CY2011	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	13197000
CY2011	us-gaap	Payments For Proceeds From Other Deposits PaymentsForProceedsFromOtherDeposits	0
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	320000	shares
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.338	pure
CY2011	us-gaap	Investment Income Interest InvestmentIncomeInterest	672000
CY2011	us-gaap	Income Taxes Paid IncomeTaxesPaid	7846000
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	492000
CY2011	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-2066000
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	504393	shares
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	205000
CY2011	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	7.50
CY2011	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.030	pure
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	7491000
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	3846000
CY2011	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	3438000
CY2011	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	23308000
CY2011	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0
CY2011	us-gaap	Restructuring Charges RestructuringCharges	0
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	10.81
CY2011	us-gaap	Advertising Expense AdvertisingExpense	175000
CY2011	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-404000
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	13.67
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	42973000	shares
CY2011	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	3379000
CY2011	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-2755000
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1141000
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.89
CY2011	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	0
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	56293000
CY2011	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	105271000
CY2011	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	40628000
CY2011	us-gaap	Cost Of Revenue CostOfRevenue	61361000
CY2011	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	1800000
CY2011	us-gaap	Extinguishment Of Debt Gain Loss Net Of Tax ExtinguishmentOfDebtGainLossNetOfTax	0
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	37790	shares
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.002	pure
CY2011	us-gaap	Operating Expenses OperatingExpenses	171114000
CY2011	us-gaap	Cost Of Services CostOfServices	23186000
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	9.87
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	53008000
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	42059000	shares
CY2011	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	1092000
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1268000
CY2011	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	5600000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350	pure
CY2011	us-gaap	Proceeds From Repurchase Of Equity ProceedsFromRepurchaseOfEquity	-367000
CY2011	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	0
CY2011	us-gaap	Cost Of Goods Sold CostOfGoodsSold	38175000
CY2011	us-gaap	Revenues Revenues	290540000
CY2011	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	130592000
CY2011	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1104000
CY2011	us-gaap	Depreciation Depreciation	7800000
CY2011	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	153903000
CY2011	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-127000
CY2011	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability	0
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	6439000
CY2011	us-gaap	Gross Profit GrossProfit	229179000
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-3379000
CY2011	us-gaap	Interest Paid InterestPaid	2079000
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	128000
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-59964000
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3459000
CY2011	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0
CY2011	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	101430000
CY2011	us-gaap	Net Income Loss NetIncomeLoss	37265000
CY2011	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1772000
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	8238000
CY2011	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	25000
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19028000
CY2011	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	0
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0
CY2011	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-3746000
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	936000
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1907000
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	117720	shares
CY2011	us-gaap	Interest Expense InterestExpense	2452000
CY2011	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	0
CY2011	ntct	Payments Of Contingent Consideration PaymentsOfContingentConsideration	0
CY2011	ntct	Transfers From Inventory To Fixed Assets TransfersFromInventoryToFixedAssets	1348000
CY2011	ntct	Increase Decrease In Contingent Consideration Payable IncreaseDecreaseInContingentConsiderationPayable	0
CY2011	ntct	Effective Income Tax Rate Reconciliation Nondeductible Expense Transaction Costs EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTransactionCosts	0.000	pure
CY2011	ntct	Acquisition Related Compensation Expense And Accretion Charges AcquisitionRelatedCompensationExpenseAndAccretionCharges	0
CY2011	ntct	Business Acquisition Purchase Price Allocation Current Liabilities Change In Amount Of Contractual Non Compliance Liability BusinessAcquisitionPurchasePriceAllocationCurrentLiabilitiesChangeInAmountOfContractualNonComplianceLiability	0
CY2013	dei	Trading Symbol TradingSymbol	NTCT
CY2013	dei	Entity Registrant Name EntityRegistrantName	NETSCOUT SYSTEMS INC
CY2013	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2013	dei	Amendment Flag AmendmentFlag	false
CY2013	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2013	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2013	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2013	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
CY2013	dei	Document Type DocumentType	10-K
CY2013	dei	Document Period End Date DocumentPeriodEndDate	2013-03-31
CY2013	dei	Entity Central Index Key EntityCentralIndexKey	0001078075
CY2013	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2013	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--03-31
CY2013	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0
CY2013	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	0
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	2763000
CY2013	us-gaap	Business Combination Pro Forma Information Revenue Of Acquiree Since Acquisition Date Actual BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual	24800000
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	64529000
CY2013	us-gaap	Derivative Instruments Gain Loss Recognized In Income Ineffective Portion And Amount Excluded From Effectiveness Testing Net DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet	148000
CY2013	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	3000
CY2013	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	198749000
CY2013	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	535000	shares
CY2013	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-2345000
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	73000
CY2013	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	51273000
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	-0.029	pure
CY2013	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	62000000
CY2013	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-10000
CY2013	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	63736000
CY2013	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	5161000
CY2013	us-gaap	Goodwill Translation Adjustments GoodwillTranslationAdjustments	322000
CY2013	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	86892	shares
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	41068000
CY2013	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	154000
CY2013	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	19127000
CY2013	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	1907000
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	764893	shares
CY2013	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	8887000
CY2013	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	4000000
CY2013	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	-404000
CY2013	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	0.83
CY2013	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	17464000
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	9591000
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2013	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	361086000
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	95412000
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.013	pure
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.96
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	0
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	35000
CY2013	us-gaap	Acquired Finite Lived Intangible Assets Weighted Average Useful Life AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife	P10Y1M6D
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0
CY2013	us-gaap	Pro Forma Weighted Average Shares Outstanding Diluted ProFormaWeightedAverageSharesOutstandingDiluted	42322000	shares
CY2013	us-gaap	Fair Value Inputs Discount Rate FairValueInputsDiscountRate	0.033	pure
CY2013	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	27448000
CY2013	us-gaap	Stock Issued1 StockIssued1	4545000
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-2999000
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	-0.021	pure
CY2013	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0
CY2013	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	15826000
CY2013	us-gaap	Payments For Proceeds From Other Deposits PaymentsForProceedsFromOtherDeposits	804000
CY2013	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	122000	shares
CY2013	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.363	pure
CY2013	us-gaap	Defined Contribution Plan Employers Matching Contribution Annual Vesting Percentage DefinedContributionPlanEmployersMatchingContributionAnnualVestingPercentage	0.25	pure
CY2013	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	-239000
CY2013	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.036	pure
CY2013	us-gaap	Investment Income Interest InvestmentIncomeInterest	508000
CY2013	us-gaap	Income Taxes Paid IncomeTaxesPaid	13326000
CY2013	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	4545000
CY2013	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	320000
CY2013	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	7595000
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	549932	shares
CY2013	us-gaap	Capitalized Computer Software Amortization CapitalizedComputerSoftwareAmortization	51000
CY2013	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-110000
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	6.62
CY2013	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	10739000
CY2013	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	11948000
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-17325000
CY2013	us-gaap	Weighted Average Basic Shares Outstanding Pro Forma WeightedAverageBasicSharesOutstandingProForma	41665000	shares
CY2013	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	29718000
CY2013	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0
CY2013	us-gaap	Restructuring Charges RestructuringCharges	1065000
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	12.52
CY2013	us-gaap	Advertising Expense AdvertisingExpense	1100000
CY2013	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-5391000
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	24.19
CY2013	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y9M18D
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	42322000	shares
CY2013	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	574000
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	466000
CY2013	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-82000
CY2013	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	460000
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	63736000
CY2013	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	116807000
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.007	pure
CY2013	us-gaap	Revenues Revenues	350550000
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	459000
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.97
CY2013	us-gaap	Nature Of Operations NatureOfOperations	<div> <p style="margin-top:12px;margin-bottom:0px"><font style="font-family:Times New Roman" size="2"><b>NOTE 1 – NATURE OF BUSINESS</b></font></p> <p style="margin-top:6px;margin-bottom:0px; text-indent:4%"> <font style="font-family:Times New Roman" size="2">NetScout Systems, Inc., or NetScout or the Company, designs, develops, manufactures, markets, licenses, sells and supports market leading unified service delivery management, service assurance and application and network performance management solutions focused on assuring service delivery for the world’s largest, most demanding and complex IP based service delivery environments. NetScout manufactures and markets these products in integrated hardware and software solutions that are used by commercial enterprises, large governmental agencies and telecommunication service providers worldwide. NetScout has a single operating segment and substantially all of its identifiable assets are located in the United States.</font></p> </div>
CY2013	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	61546000
CY2013	us-gaap	Cost Of Revenue CostOfRevenue	74008000
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	66735000
CY2013	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	1900000
CY2013	us-gaap	Extinguishment Of Debt Gain Loss Net Of Tax ExtinguishmentOfDebtGainLossNetOfTax	0
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	0	shares
CY2013	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.50	pure
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	16.10
CY2013	us-gaap	Operating Expenses OperatingExpenses	212013000
CY2013	us-gaap	Cost Of Services CostOfServices	28256000
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41665000	shares
CY2013	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	Segment
CY2013	us-gaap	Line Of Credit Facility Expiration Date1 LineOfCreditFacilityExpirationDate1	2016-11-21
CY2013	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-1433000
CY2013	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2266000
CY2013	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	5700000
CY2013	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350	pure
CY2013	us-gaap	Proceeds From Repurchase Of Equity ProceedsFromRepurchaseOfEquity	575000
CY2013	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	466000
CY2013	us-gaap	Cost Of Goods Sold CostOfGoodsSold	45752000
CY2013	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	151801000
CY2013	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1035000
CY2013	us-gaap	Depreciation Depreciation	9800000
CY2013	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	121133000
CY2013	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-104000
CY2013	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability	650000
CY2013	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	9580000
CY2013	us-gaap	Gross Profit GrossProfit	276542000
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-91004000
CY2013	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	27448000
CY2013	us-gaap	Operating Loss Carryforwards Expiration Dates OperatingLossCarryforwardsExpirationDates	2023 and extending through 2033
CY2013	us-gaap	Interest Paid InterestPaid	325000
CY2013	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-55000
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-21742000
CY2013	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	34589000
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3909000
CY2013	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-1481000
CY2013	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	163416000
CY2013	us-gaap	Net Income Loss NetIncomeLoss	40609000
CY2013	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-793000
CY2013	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	1907000
CY2013	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	3000
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2013	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	31747000
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	23127000
CY2013	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	9000
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0
CY2013	us-gaap	Use Of Estimates UseOfEstimates	<div> <p style="margin-top:18px;margin-bottom:0px"><font style="font-family:Times New Roman" size="2"><b>Use of Estimates</b></font></p> <p style="margin-top:6px;margin-bottom:0px; text-indent:4%"> <font style="font-family:Times New Roman" size="2">The preparation of financial statements in conformity with generally accepted accounting principles (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates in these financial statements include revenue recognition, valuation of goodwill and acquired intangible assets and share-based compensation. These items are continuously monitored and analyzed by management for changes in facts and circumstances and material changes in these estimates could occur in the future.</font></p> </div>
CY2013	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1000
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	109000
CY2013	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2877000
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	99460	shares
CY2013	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	0.82
CY2013	us-gaap	Interest Expense InterestExpense	1291000
CY2013	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	114000
CY2013	ntct	Payments Of Contingent Consideration PaymentsOfContingentConsideration	4038000
CY2013	ntct	Transfers From Inventory To Fixed Assets TransfersFromInventoryToFixedAssets	583000
CY2013	ntct	Increase Decrease In Contingent Consideration Payable IncreaseDecreaseInContingentConsiderationPayable	0
CY2013	ntct	Hedging Forecasted Cash Flows For Operating Expenses Denominated In Foreign Currencies Managed In Months HedgingForecastedCashFlowsForOperatingExpensesDenominatedInForeignCurrenciesManagedInMonths	12	M
CY2013	ntct	Effective Income Tax Rate Reconciliation Nondeductible Expense Transaction Costs EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTransactionCosts	0.007	pure
CY2013	ntct	Percentage Of Foreign Subsidiaries Capital Stock To Be Used For Repayment Of Line Of Credit PercentageOfForeignSubsidiariesCapitalStockToBeUsedForRepaymentOfLineOfCredit	0.65	pure
CY2013	ntct	Contract Maturing Over Next Months ContractMaturingOverNextMonths	12	M
CY2013	ntct	Preliminary Purchase Price Allocation Period PreliminaryPurchasePriceAllocationPeriod	P1Y
CY2013	ntct	Acquisition Related Compensation Expense And Accretion Charges AcquisitionRelatedCompensationExpenseAndAccretionCharges	263000
CY2013	ntct	Business Acquisition Purchase Price Allocation Current Liabilities Change In Amount Of Contractual Non Compliance Liability BusinessAcquisitionPurchasePriceAllocationCurrentLiabilitiesChangeInAmountOfContractualNonComplianceLiability	-184000
CY2012	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-690000
CY2012	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	389000
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	3303000
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	53683000
CY2012	us-gaap	Derivative Instruments Gain Loss Recognized In Income Ineffective Portion And Amount Excluded From Effectiveness Testing Net DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet	191000
CY2012	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	53000
CY2012	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	168141000
CY2012	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	561000	shares
CY2012	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-2195000
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	810000
CY2012	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	46721000
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	-0.024	pure
CY2012	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	68106000
CY2012	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	-7000
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-728000
CY2012	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	50918000
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	33316000
CY2012	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	569000
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.76
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	5.26
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	34000
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	5603000
CY2012	us-gaap	Goodwill Translation Adjustments GoodwillTranslationAdjustments	-291000
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	13038000
CY2012	us-gaap	Restructuring And Related Cost Number Of Positions Eliminated RestructuringAndRelatedCostNumberOfPositionsEliminated	12	Employee
CY2012	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	965000
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	1071131	shares
CY2012	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	8651000
CY2012	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	5452000
CY2012	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	-339000
CY2012	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	0.25
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	16642000
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	8651000
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2012	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	338720000
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	68307000
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.010	pure
CY2012	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	84502	shares
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0
CY2012	us-gaap	Pro Forma Weighted Average Shares Outstanding Diluted ProFormaWeightedAverageSharesOutstandingDiluted	42750000	shares
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	20595000
CY2012	us-gaap	Stock Issued1 StockIssued1	0
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	1393000
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	-0.021	pure
CY2012	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	10585000
CY2012	us-gaap	Payments For Proceeds From Other Deposits PaymentsForProceedsFromOtherDeposits	0
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	154000	shares
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.363	pure
CY2012	us-gaap	Investment Income Interest InvestmentIncomeInterest	419000
CY2012	us-gaap	Income Taxes Paid IncomeTaxesPaid	13163000
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	44000
CY2012	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	10308000
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	659350	shares
CY2012	us-gaap	Capitalized Computer Software Amortization CapitalizedComputerSoftwareAmortization	204000
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-84000
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	5.58
CY2012	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	-204000
CY2012	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.032	pure
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	11288000
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	50087000
CY2012	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	1637000
CY2012	us-gaap	Weighted Average Basic Shares Outstanding Pro Forma WeightedAverageBasicSharesOutstandingProForma	42035000	shares
CY2012	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	27488000
CY2012	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	60691000
CY2012	us-gaap	Restructuring Charges RestructuringCharges	603000
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	11.26
CY2012	us-gaap	Advertising Expense AdvertisingExpense	273000
CY2012	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	875000
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	13.36
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	42750000	shares
CY2012	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	472000
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	159000
CY2012	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	3997000
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-385000
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	50918000
CY2012	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	109624000
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	888000
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.77
CY2012	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	49478000
CY2012	us-gaap	Cost Of Revenue CostOfRevenue	65672000
CY2012	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	2100000
CY2012	us-gaap	Extinguishment Of Debt Gain Loss Net Of Tax ExtinguishmentOfDebtGainLossNetOfTax	-553000
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	125	shares
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.001	pure
CY2012	us-gaap	Operating Expenses OperatingExpenses	189324000
CY2012	us-gaap	Cost Of Services CostOfServices	26401000
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	13.60
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	49525000
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	42035000	shares
CY2012	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	892000
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1421000
CY2012	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	5600000
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350	pure
CY2012	us-gaap	Proceeds From Repurchase Of Equity ProceedsFromRepurchaseOfEquity	473000
CY2012	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	0
CY2012	us-gaap	Cost Of Goods Sold CostOfGoodsSold	39271000
CY2012	us-gaap	Revenues Revenues	308679000
CY2012	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	140538000
CY2012	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1032000
CY2012	us-gaap	Depreciation Depreciation	9600000
CY2012	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	117682000
CY2012	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-168000
CY2012	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability	900000
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8702000
CY2012	us-gaap	Gross Profit GrossProfit	243007000
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-27418000
CY2012	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	20595000
CY2012	us-gaap	Interest Paid InterestPaid	1253000
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-51000
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	9208000
CY2012	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	10594000
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	5437000
CY2012	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-195000
CY2012	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	184899000
CY2012	us-gaap	Net Income Loss NetIncomeLoss	32428000
CY2012	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-2765000
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	965000
CY2012	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-625000
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2012	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	42505000
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18490000
CY2012	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-10000
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	82000
CY2012	us-gaap	Severance Costs SeveranceCosts	603000
CY2012	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1000
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1357000
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2131000
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	75315	shares
CY2012	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	0.25
CY2012	us-gaap	Interest Expense InterestExpense	1766000
CY2012	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	0
CY2012	ntct	Payments Of Contingent Consideration PaymentsOfContingentConsideration	846000
CY2012	ntct	Transfers From Inventory To Fixed Assets TransfersFromInventoryToFixedAssets	1910000
CY2012	ntct	Increase Decrease In Contingent Consideration Payable IncreaseDecreaseInContingentConsiderationPayable	8000000
CY2012	ntct	Effective Income Tax Rate Reconciliation Nondeductible Expense Transaction Costs EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTransactionCosts	0.015	pure
CY2012	ntct	Acquisition Related Compensation Expense And Accretion Charges AcquisitionRelatedCompensationExpenseAndAccretionCharges	106000
CY2012	ntct	Business Acquisition Purchase Price Allocation Current Liabilities Change In Amount Of Contractual Non Compliance Liability BusinessAcquisitionPurchasePriceAllocationCurrentLiabilitiesChangeInAmountOfContractualNonComplianceLiability	-900000
CY2013Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.34
CY2013Q1	us-gaap	Revenues Revenues	98077000
CY2013Q1	us-gaap	Gross Profit GrossProfit	77037000
CY2013Q1	us-gaap	Net Income Loss NetIncomeLoss	14553000
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.06
CY2011Q2	us-gaap	Revenues Revenues	63296000
CY2011Q2	us-gaap	Gross Profit GrossProfit	49400000
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	2399000
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.12
CY2012Q2	us-gaap	Revenues Revenues	76361000
CY2012Q2	us-gaap	Gross Profit GrossProfit	59498000
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	5008000
CY2012Q2	ntct	Reduction In Valuation Reserve Reflecting Redemptions At Par Net Of Tax ReductionInValuationReserveReflectingRedemptionsAtParNetOfTax	117000
CY2012Q2	ntct	Reduction In Valuation Reserve Reflecting Redemptions At Par ReductionInValuationReserveReflectingRedemptionsAtPar	190000
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.30
CY2012Q1	us-gaap	Revenues Revenues	89462000
CY2012Q1	us-gaap	Gross Profit GrossProfit	70502000
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	12947000
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.17
CY2011Q3	us-gaap	Revenues Revenues	72624000
CY2011Q3	us-gaap	Gross Profit GrossProfit	57047000
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	7051000
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.24
CY2011Q4	us-gaap	Revenues Revenues	83297000
CY2011Q4	us-gaap	Gross Profit GrossProfit	66058000
CY2011Q4	us-gaap	Net Income Loss NetIncomeLoss	10031000
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.23
CY2012Q3	us-gaap	Revenues Revenues	84545000
CY2012Q3	us-gaap	Gross Profit GrossProfit	67604000
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	9910000
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.26
CY2012Q4	us-gaap	Revenues Revenues	91567000
CY2012Q4	us-gaap	Gross Profit GrossProfit	72403000
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	11138000

Files In Submission

Name	View Source	Status
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0001193125-13-235038.txt	Edgar Link	pending
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ntct-20130331.xml	Edgar Link	completed
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$NTCT
NETSCOUT SYSTEMS INC Stock $ntct

2013 Q1 Form 10-K Financial Statement

#000119312513235038 Filed on May 24, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NTCT NETSCOUT SYSTEMS INC Stock $ntct

2013 Q1 Form 10-K Financial Statement

#000119312513235038 Filed on May 24, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NTCT
NETSCOUT SYSTEMS INC Stock $ntct