$SNPS
SYNOPSYS INC Stock $snps

$snps Overview Financials Valuation SEC Filings Company Website

2021 Q3 Form 10-Q Financial Statement

#000088324121000017 Filed on August 20, 2021

Income Statement

Concept	2021 Q3	2020 Q4	2020 Q3
Revenue	$1.057B	$1.025B	$964.1M
YoY Change	9.65%	20.48%	13.03%
Cost Of Revenue	$205.1M	$224.5M	$193.0M
YoY Change	6.25%	22.88%	3.42%
Gross Profit	$852.1M	$800.9M	$771.1M
YoY Change	10.5%	19.84%	15.73%
Gross Profit Margin	80.6%	78.11%	79.98%
Selling, General & Admin	$255.3M	$280.5M	$230.0M
YoY Change	11.0%	24.89%	2.44%
% of Gross Profit	29.96%	35.02%	29.82%
Research & Development	$371.1M	$339.6M	$322.6M
YoY Change	15.05%	16.9%	13.27%
% of Gross Profit	43.56%	42.4%	41.84%
Depreciation & Amortization	$51.17M	$50.80M	$54.10M
YoY Change	-5.41%	2.42%	9.74%
% of Gross Profit	6.01%	6.34%	7.02%
Operating Expenses	$650.1M	$629.4M	$560.5M
YoY Change	15.99%	19.82%	4.04%
Operating Profit	$201.9M	$171.5M	$210.6M
YoY Change	-4.12%	19.93%	65.05%
Interest Expense	$757.0K	$0.00	$941.0K
YoY Change	-19.55%	-100.0%	-57.5%
% of Operating Profit	0.37%	0.0%	0.45%
Other Income/Expense, Net	$11.41M	-$5.800M	$26.26M
YoY Change	-56.53%	176.19%	393.81%
Pretax Income	$213.3M	$191.6M	$236.9M
YoY Change	-9.93%	45.59%	78.2%
Income Tax	$14.95M	-$5.000M	-$16.06M
% Of Pretax Income	7.01%	-2.61%	-6.78%
Net Earnings	$198.6M	$197.5M	$252.9M
YoY Change	-21.46%	22.9%	153.09%
Net Earnings / Revenue	18.79%	19.26%	26.23%
Basic Earnings Per Share	$1.30		$1.67
Diluted Earnings Per Share	$1.27	$1.253M	$1.62
COMMON SHARES
Basic Shares Outstanding	152.6M shares	153.0M shares	151.4M shares
Diluted Shares Outstanding	156.9M shares		156.0M shares

Balance Sheet

Concept	2021 Q3	2020 Q4	2020 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.530B	$1.236B	$1.050B
YoY Change	45.74%	69.6%	52.87%
Cash & Equivalents	$1.385B	$1.236B	$1.050B
Short-Term Investments	$144.8M
Other Short-Term Assets	$132.3M	$93.60M	$100.3M
YoY Change	31.93%	-67.74%	-65.26%
Inventory	$241.1M	$192.3M	$159.8M
Prepaid Expenses
Receivables	$577.8M	$780.7M	$638.5M
Other Receivables	$35.72M	$32.30M	$21.00M
Total Short-Term Assets	$2.764B	$2.549B	$2.186B
YoY Change	26.44%	46.6%	35.14%
LONG-TERM ASSETS
Property, Plant & Equipment	$470.1M	$483.8M	$484.5M
YoY Change	-2.97%	12.64%	30.05%
Goodwill	$3.485B	$3.365B	$3.356B
YoY Change	3.84%	6.12%	6.79%
Intangibles	$250.0M	$254.3M	$275.3M
YoY Change	-9.21%	-8.97%	-2.81%
Long-Term Investments
YoY Change
Other Assets	$484.6M	$414.2M	$416.5M
YoY Change	16.33%	8.86%	8.61%
Total Long-Term Assets	$5.722B	$5.481B	$5.477B
YoY Change	4.47%	17.46%	20.76%
TOTAL ASSETS
Total Short-Term Assets	$2.764B	$2.549B	$2.186B
Total Long-Term Assets	$5.722B	$5.481B	$5.477B
Total Assets	$8.486B	$8.030B	$7.663B
YoY Change	10.74%	25.37%	24.54%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$41.31M	$30.00M	$37.13M
YoY Change	11.26%	51.42%	150.07%
Accrued Expenses	$653.7M	$666.8M	$584.6M
YoY Change	11.82%	38.11%	30.0%
Deferred Revenue	$1.543B	$1.388B	$1.390B
YoY Change	11.01%	14.5%	22.0%
Short-Term Debt	$82.47M	$27.08M	$24.25M
YoY Change	240.1%	53.76%
Long-Term Debt Due	$82.47M	$27.10M	$24.20M
YoY Change	240.78%	53.98%	44.91%
Total Short-Term Liabilities	$2.335B	$2.140B	$2.056B
YoY Change	13.54%	22.11%	26.12%
LONG-TERM LIABILITIES
Long-Term Debt	$24.75M	$100.8M	$107.1M
YoY Change	-76.89%	-16.05%	-14.51%
Other Long-Term Liabilities	$355.4M	$284.5M	$289.4M
YoY Change	22.82%	-12.11%	-14.61%
Total Long-Term Liabilities	$380.2M	$385.3M	$396.5M
YoY Change	-4.11%	-13.18%	-14.58%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.335B	$2.140B	$2.056B
Total Long-Term Liabilities	$380.2M	$385.3M	$396.5M
Total Liabilities	$3.331B	$3.118B	$3.062B
YoY Change	8.78%	34.6%	38.31%
SHAREHOLDERS EQUITY
Retained Earnings	$4.348B	$3.795B	$3.598B
YoY Change	20.85%	19.95%	19.79%
Common Stock	$1.526M	$1.528M	$1.519M
YoY Change	0.46%	1.66%	1.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$757.3M	$488.6M	$554.3M
YoY Change	36.63%	-21.9%	-3.11%
Treasury Stock Shares	4.664M shares	4.643M shares	5.503M shares
Shareholders Equity	$5.151B	$4.907B	$4.596B
YoY Change
Total Liabilities & Shareholders Equity	$8.486B	$8.030B	$7.663B
YoY Change	10.74%	25.37%	24.54%

Cashflow Statement

Concept	2021 Q3	2020 Q4	2020 Q3
OPERATING ACTIVITIES
Net Income	$198.6M	$197.5M	$252.9M
YoY Change	-21.46%	22.9%	153.09%
Depreciation, Depletion And Amortization	$51.17M	$50.80M	$54.10M
YoY Change	-5.41%	2.42%	9.74%
Cash From Operating Activities	$421.8M	$202.1M	$399.5M
YoY Change	5.57%	-8.63%	7.83%
INVESTING ACTIVITIES
Capital Expenditures	-$112.5M	-$35.50M	-$90.30M
YoY Change	24.61%	-68.97%	66.91%
Acquisitions
YoY Change
Other Investing Activities	-$152.5M	$0.00	$2.200M
YoY Change	-7033.86%	-100.0%	0.0%
Cash From Investing Activities	-$265.1M	-$35.50M	-$88.20M
YoY Change	200.54%	-69.84%	69.94%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-225.7M	10.90M	-130.8M
YoY Change	72.56%	-118.29%	-50.59%
NET CHANGE
Cash From Operating Activities	421.8M	202.1M	399.5M
Cash From Investing Activities	-265.1M	-35.50M	-88.20M
Cash From Financing Activities	-225.7M	10.90M	-130.8M
Net Change In Cash	-69.02M	177.5M	180.5M
YoY Change	-138.24%	304.33%	234.88%
FREE CASH FLOW
Cash From Operating Activities	$421.8M	$202.1M	$399.5M
Capital Expenditures	-$112.5M	-$35.50M	-$90.30M
Free Cash Flow	$534.3M	$237.6M	$489.8M
YoY Change	9.08%	-29.2%	15.36%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	577845000	USD
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Entity Central Index Key EntityCentralIndexKey	0000883241
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--10-31
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-07-31
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	000-19807
	dei	Entity Registrant Name EntityRegistrantName	SYNOPSYS, INC.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	56-1546236
	dei	Entity Address Address Line1 EntityAddressAddressLine1	690 EAST MIDDLEFIELD ROAD
	dei	Entity Address City Or Town EntityAddressCityOrTown	MOUNTAIN VIEW
	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	94043
	dei	City Area Code CityAreaCode	650
	dei	Local Phone Number LocalPhoneNumber	584-5000
	dei	Security12b Title Security12bTitle	Common Stock(par value of $0.01 per share)
	dei	Trading Symbol TradingSymbol	SNPS
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2021Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	152502754	shares
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1385395000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1235653000	USD
CY2021Q3	us-gaap	Short Term Investments ShortTermInvestments	144773000	USD
CY2020Q4	us-gaap	Short Term Investments ShortTermInvestments	0	USD
CY2021Q3	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	1530168000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	1235653000	USD
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	780709000	USD
CY2021Q3	us-gaap	Inventory Net InventoryNet	241103000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	192333000	USD
CY2021Q3	snps	Income Tax Receivable And Prepaid Tax IncomeTaxReceivableAndPrepaidTax	35724000	USD
CY2020Q4	snps	Income Tax Receivable And Prepaid Tax IncomeTaxReceivableAndPrepaidTax	32355000	USD
CY2021Q3	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	379136000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	308167000	USD
CY2021Q3	us-gaap	Assets Current AssetsCurrent	2763976000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	2549217000	USD
CY2021Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	470129000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	483818000	USD
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	493899000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	465818000	USD
CY2021Q3	us-gaap	Goodwill Goodwill	3485181000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	3365114000	USD
CY2021Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	249974000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	254322000	USD
CY2021Q3	us-gaap	Prepaid Expense Other Noncurrent PrepaidExpenseOtherNoncurrent	10417000	USD
CY2020Q4	us-gaap	Prepaid Expense Other Noncurrent PrepaidExpenseOtherNoncurrent	8276000	USD
CY2021Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	527753000	USD
CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	497546000	USD
CY2021Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	484577000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	405951000	USD
CY2021Q3	us-gaap	Assets Assets	8485906000	USD
CY2020Q4	us-gaap	Assets Assets	8030062000	USD
CY2021Q3	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	615737000	USD
CY2020Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	623664000	USD
CY2021Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	79289000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	73173000	USD
CY2021Q3	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	14536000	USD
CY2020Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	27738000	USD
CY2021Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	1542606000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	1388263000	USD
CY2021Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	82468000	USD
CY2020Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	27084000	USD
CY2021Q3	us-gaap	Liabilities Current LiabilitiesCurrent	2334636000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2139922000	USD
CY2021Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	487574000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	462411000	USD
CY2021Q3	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	24600000	USD
CY2020Q4	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	25178000	USD
CY2021Q3	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	103759000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	104850000	USD
CY2021Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	24754000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	100823000	USD
CY2021Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	355447000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	284511000	USD
CY2021Q3	us-gaap	Liabilities Liabilities	3330770000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	3117695000	USD
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2021Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2021Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	2000000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	2000000	shares
CY2021Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2021Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2021Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2021Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2021Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	152597000	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	152618000	shares
CY2021Q3	us-gaap	Gross Profit GrossProfit	852064000	USD
CY2021Q3	us-gaap	Common Stock Value CommonStockValue	1526000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	1528000	USD
CY2021Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1606980000	USD
CY2020Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1653166000	USD
CY2021Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	4348266000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	3795397000	USD
CY2021Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	4664000	shares
CY2020Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	4643000	shares
CY2021Q3	us-gaap	Treasury Stock Value TreasuryStockValue	757341000	USD
CY2020Q4	us-gaap	Treasury Stock Value TreasuryStockValue	488613000	USD
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-48411000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-54074000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	5151020000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	4907404000	USD
CY2021Q3	us-gaap	Minority Interest MinorityInterest	4116000	USD
CY2020Q4	us-gaap	Minority Interest MinorityInterest	4963000	USD
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5155136000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4912367000	USD
CY2021Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	8485906000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	8030062000	USD
CY2021Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1057130000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	964134000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3051774000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2659842000	USD
CY2021Q3	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	11870000	USD
CY2020Q3	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	13718000	USD
	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	35164000	USD
	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	40732000	USD
CY2021Q3	us-gaap	Cost Of Revenue CostOfRevenue	205066000	USD
CY2020Q3	us-gaap	Cost Of Revenue CostOfRevenue	193008000	USD
	us-gaap	Cost Of Revenue CostOfRevenue	627051000	USD
	us-gaap	Cost Of Revenue CostOfRevenue	570141000	USD
CY2020Q3	us-gaap	Gross Profit GrossProfit	771126000	USD
	us-gaap	Gross Profit GrossProfit	2424723000	USD
	us-gaap	Gross Profit GrossProfit	2089701000	USD
CY2021Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	371146000	USD
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	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1090959000	USD
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CY2021Q3	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	171428000	USD
CY2020Q3	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	156456000	USD
	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	514810000	USD
	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	455511000	USD
CY2021Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	83846000	USD
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	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	234028000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	204734000	USD
CY2021Q3	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	8570000	USD
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	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	25273000	USD
CY2020Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	26256000	USD
	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	29545000	USD
CY2021Q3	us-gaap	Restructuring Charges RestructuringCharges	15151000	USD
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	us-gaap	Restructuring Charges RestructuringCharges	15151000	USD
	us-gaap	Restructuring Charges RestructuringCharges	36446000	USD
CY2021Q3	us-gaap	Operating Expenses OperatingExpenses	650141000	USD
CY2020Q3	us-gaap	Operating Expenses OperatingExpenses	560528000	USD
	us-gaap	Operating Expenses OperatingExpenses	1880221000	USD
	us-gaap	Operating Expenses OperatingExpenses	1665692000	USD
CY2021Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	201923000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	210598000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	544502000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	424009000	USD
CY2021Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	11414000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	61934000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	22584000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	213337000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	236854000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	606436000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	446593000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14945000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-16057000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	51214000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-20299000	USD
CY2021Q3	us-gaap	Profit Loss ProfitLoss	198392000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	252911000	USD
	us-gaap	Profit Loss ProfitLoss	555222000	USD
	us-gaap	Profit Loss ProfitLoss	466892000	USD
CY2021Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-254000	USD
CY2020Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-847000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	198646000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	252911000	USD
	us-gaap	Net Income Loss NetIncomeLoss	556069000	USD
	us-gaap	Net Income Loss NetIncomeLoss	466892000	USD
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.30
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.67
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.64
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.10
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.27
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.62
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.54
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.01
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	152635000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	151352000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	152619000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150731000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	156907000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	155973000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	157158000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	155074000	shares
CY2021Q3	us-gaap	Profit Loss ProfitLoss	198392000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	252911000	USD
	us-gaap	Profit Loss ProfitLoss	555222000	USD
	us-gaap	Profit Loss ProfitLoss	466892000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-5905000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	18102000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	8857000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	14099000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	15000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	15000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-909000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-1876000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-4169000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-1823000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	3664000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	12399000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	8971000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	3965000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-1460000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-3808000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	134000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	262000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	4830000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-709000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	12180000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-1563000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-7056000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	31210000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	5663000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	19627000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	191336000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	284121000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	560885000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	486519000	USD
CY2021Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-254000	USD
CY2020Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-847000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	191590000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	284121000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	561732000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	486519000	USD
CY2021Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5092505000	USD
CY2021Q3	snps	Net Income Loss Including Portion Attributable To Noncontrolling Interest Separately Stated NetIncomeLossIncludingPortionAttributableToNoncontrollingInterestSeparatelyStated	198392000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-7056000	USD
CY2021Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	140000000	USD
CY2021Q3	snps	Adjustments To Additional Paid In Capital Equity Forward Contract AdjustmentsToAdditionalPaidInCapitalEquityForwardContract	-35000000	USD
CY2021Q3	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	-38867000	USD
CY2021Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	85162000	USD
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5155136000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4912367000	USD
	snps	Net Income Loss Including Portion Attributable To Noncontrolling Interest Separately Stated NetIncomeLossIncludingPortionAttributableToNoncontrollingInterestSeparatelyStated	555222000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	5663000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	538082000	USD
	snps	Adjustments To Additional Paid In Capital Equity Forward Contract AdjustmentsToAdditionalPaidInCapitalEquityForwardContract	-35000000	USD
	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	9636000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	248530000	USD
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5155136000	USD
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4280949000	USD
CY2020Q3	snps	Net Income Loss Including Portion Attributable To Noncontrolling Interest Separately Stated NetIncomeLossIncludingPortionAttributableToNoncontrollingInterestSeparatelyStated	252440000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	31210000	USD
CY2020Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	20000000	USD
CY2020Q3	snps	Adjustments To Additional Paid In Capital Equity Forward Contract AdjustmentsToAdditionalPaidInCapitalEquityForwardContract	20000000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	-25119000	USD
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	61837000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4601317000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4088876000	USD
	snps	Net Income Loss Including Portion Attributable To Noncontrolling Interest Separately Stated NetIncomeLossIncludingPortionAttributableToNoncontrollingInterestSeparatelyStated	466421000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	19627000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	200000000	USD
	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	56238000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	170155000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4601317000	USD
	us-gaap	Net Income Loss NetIncomeLoss	556069000	USD
	us-gaap	Net Income Loss NetIncomeLoss	466892000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	151274000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	159156000	USD
	snps	Reductionof Operating Lease Rightof Use Assets ReductionofOperatingLeaseRightofUseAssets	64920000	USD
	snps	Reductionof Operating Lease Rightof Use Assets ReductionofOperatingLeaseRightofUseAssets	62585000	USD
	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	46973000	USD
	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	44851000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	248530000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	170155000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	13813000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	14875000	USD
	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-33116000	USD
	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-74374000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-2936000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-756000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-188996000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	89667000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	51448000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	20296000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	62201000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	21350000	USD
	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	117922000	USD
	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	77860000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	51991000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	44313000	USD
	snps	Increase Decreasein Operating Lease Liabilities IncreaseDecreaseinOperatingLeaseLiabilities	61666000	USD
	snps	Increase Decreasein Operating Lease Liabilities IncreaseDecreaseinOperatingLeaseLiabilities	57968000	USD
	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	-29414000	USD
	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	6128000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	152328000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	160966000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1122063000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	789162000	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	1128000	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	8700000	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	0	USD
	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	146082000	USD
	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	0	USD
	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	0	USD
	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	2151000	USD
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	7591000	USD
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	2762000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	66957000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	120234000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	164053000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	201045000	USD
	snps	Paymentsforcapitalizedsoftwaredevelopmentcosts Paymentsforcapitalizedsoftwaredevelopmentcosts	1517000	USD
	snps	Paymentsforcapitalizedsoftwaredevelopmentcosts Paymentsforcapitalizedsoftwaredevelopmentcosts	3035000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	800000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-385872000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-324925000	USD
	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	276490000	USD
	us-gaap	Repayments Of Debt RepaymentsOfDebt	21637000	USD
	us-gaap	Repayments Of Debt RepaymentsOfDebt	284218000	USD
	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	113976000	USD
	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	123237000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	104291000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	66985000	USD
	us-gaap	Payments For Repurchase Of Other Equity PaymentsForRepurchaseOfOtherEquity	35000000	USD
	us-gaap	Payments For Repurchase Of Other Equity PaymentsForRepurchaseOfOtherEquity	0	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	538082000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	200000000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-4375000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-589409000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-151476000	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	2985000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	149767000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	321461000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1237970000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	730527000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1387737000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1051988000	USD
	us-gaap	Nature Of Operations NatureOfOperations	Description of Business<div style="margin-top:9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Synopsys, Inc. (Synopsys or the Company) provides products and services used across the entire silicon to software spectrum, from engineers creating advanced semiconductors to software developers seeking to ensure the security and quality of their code. The Company is a global leader in supplying the electronic design automation (EDA) software that engineers use to design and test integrated circuits (ICs), also known as chips. The Company also offers semiconductor intellectual property (IP) products, which are pre-designed circuits that engineers use as components of larger chip designs rather than designing those circuits themselves. The Company provides software and hardware used to validate the electronic systems that incorporate chips and the software that runs on them. To complement these offerings, the Company provides technical services and support to help its customers develop advanced chips and electronic systems. These products and services are part of the Company’s Semiconductor & System Design segment.</span></div><div style="margin-top:9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company is also a leading provider of software tools and services that improve the security, quality and compliance of software in a wide variety of industries, including electronics, financial services, automotive, medicine, energy and industrials. These tools and services are part of the Company’s Software Integrity segment.</span></div>
	us-gaap	Use Of Estimates UseOfEstimates	<span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Use of Estimates. </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">To prepare financial statements in conformity with U.S. GAAP, management must make estimates and assumptions that affect the amounts reported in the unaudited condensed consolidated financial statements and accompanying notes. Actual results could differ from these estimates and may result in material effects on the Company’s operating results and financial position. In addition, the Company has considered the impact of the COVID-19 pandemic on the business operations and no impairments or other effects have been identified to date. Although the impact related to the COVID-19 pandemic has been limited in operating results thus far, there is substantial uncertainty in the nature and degree of its continued effects over time. This uncertainty affects management’s accounting estimates and assumptions, which could result in greater variability in a variety of areas that depend on these estimates and assumptions as additional events and information are known.</span>
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	4700000000	USD
CY2021Q3	snps	Revenue Remaining Performance Obligation Non Cancellable Amount RevenueRemainingPerformanceObligationNonCancellableAmount	788800000	USD
CY2021Q3	us-gaap	Goodwill Goodwill	3485181000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1547399000	USD
	us-gaap	Fiscal Period FiscalPeriod	<span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Fiscal Year End.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> The Company’s fiscal year generally ends on the Saturday nearest to October 31 and consists of 52 weeks, with the exception that approximately every five years, the Company has a 53-week year. When a 53-week year occurs, the Company includes the additional week in the first quarter to realign fiscal quarters with calendar quarters. Fiscal 2021 and 2020 are both 52-week years. Fiscal 2021 will end on October 30, 2021. Fiscal 2020 ended on October 31, 2020. For presentation purposes, the unaudited condensed consolidated financial statements and accompanying notes refer to the closest calendar month end.</span>
CY2021Q3	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	246815000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	214583000	USD
CY2021Q3	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	45855000	USD
CY2020Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	50932000	USD
CY2021Q3	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1646365000	USD
CY2020Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1493113000	USD
CY2021Q3	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	134900000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	1000000000	USD
CY2021Q3	snps	Revenue Remaining Performance Obligation Excluding Non Cancellable Recognized Over Twelve Month Period Percent RevenueRemainingPerformanceObligationExcludingNonCancellableRecognizedOverTwelveMonthPeriodPercent	0.50
CY2021Q3	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	83900000	USD
CY2021Q3	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	16500000	USD
	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	47000000	USD
CY2020Q3	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	16600000	USD
	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	44900000	USD
	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	166900000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	3365114000	USD
	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	114628000	USD
	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	5439000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	1297425000	USD
CY2021Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	249974000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1489314000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	1234992000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	254322000	USD
CY2021Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	21450000	USD
CY2020Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	24596000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	63557000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	73059000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	21104000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	73594000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	56625000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	46005000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	29903000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	22743000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	249974000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	38178000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	38169000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	99133000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	99154000	USD
CY2021Q3	snps	Debt Securities Available For Sale Amortized Cost Maturity Allocated And Single Maturity Date After Year Five DebtSecuritiesAvailableForSaleAmortizedCostMaturityAllocatedAndSingleMaturityDateAfterYearFive	7447000	USD
CY2021Q3	snps	Debt Securities Available For Sale Fair Value Maturity Allocated And Single Maturity Date After Year Five DebtSecuritiesAvailableForSaleFairValueMaturityAllocatedAndSingleMaturityDateAfterYearFive	7450000	USD
CY2021Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	144758000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	144773000	USD
CY2021Q3	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	144758000	USD
CY2021Q3	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	51000	USD
CY2021Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	36000	USD
CY2021Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	0	USD
CY2021Q3	us-gaap	Available For Sale Securities AvailableForSaleSecurities	144773000	USD
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1385395000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1235653000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1387737000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1237970000	USD
	snps	Derivative Maximum Shipment Period For Entry Into Foreign Currency Forward Contract DerivativeMaximumShipmentPeriodForEntryIntoForeignCurrencyForwardContract	P1M
	us-gaap	Derivative Instruments Gain Loss Reclassification From Accumulated Oci To Income Estimate Of Time To Transfer1 DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimateOfTimeToTransfer1	P12M
CY2021Q3	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	-837000	USD
CY2020Q3	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	2995000	USD
	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	1420000	USD
	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	1891000	USD
CY2021Q3	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	826747000	USD
CY2020Q4	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	981234000	USD
CY2021Q3	us-gaap	Derivative Fair Value Of Derivative Net DerivativeFairValueOfDerivativeNet	11346000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Net DerivativeFairValueOfDerivativeNet	6940000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	3664000	USD
CY2021Q3	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	4830000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	12399000	USD
CY2020Q3	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	-709000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	8971000	USD
	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	12180000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	3965000	USD
	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	-1563000	USD
CY2021Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	486322000	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	492626000	USD
CY2021Q3	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	88110000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	101035000	USD
CY2021Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	41305000	USD
CY2020Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	30003000	USD
CY2021Q3	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	615737000	USD
CY2020Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	623664000	USD
CY2021Q3	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	336001000	USD
CY2020Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	269737000	USD
CY2021Q3	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	19446000	USD
CY2020Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	14774000	USD
CY2021Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	355447000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	284511000	USD
CY2021Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	23843000	USD
CY2020Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	23450000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	70818000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	69932000	USD
CY2021Q3	us-gaap	Variable Lease Cost VariableLeaseCost	2184000	USD
CY2020Q3	us-gaap	Variable Lease Cost VariableLeaseCost	1447000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	5361000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	3439000	USD
CY2021Q3	us-gaap	Lease Cost LeaseCost	26027000	USD
CY2020Q3	us-gaap	Lease Cost LeaseCost	24897000	USD
	us-gaap	Lease Cost LeaseCost	76179000	USD
	us-gaap	Lease Cost LeaseCost	73371000	USD
CY2021Q3	us-gaap	Operating Lease Payments OperatingLeasePayments	21913000	USD
CY2020Q3	us-gaap	Operating Lease Payments OperatingLeasePayments	18637000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	64516000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	52766000	USD
CY2021Q3	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	10742000	USD
CY2020Q3	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	27063000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	92149000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	56846000	USD
CY2021Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y1M9D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y7M13D
CY2021Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0239
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0256
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	20538000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	94494000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	79441000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	73292000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	63800000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	296021000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	627586000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	60723000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	566863000	USD
CY2021Q3	snps	Lessee Operating Lease Lease Notyet Commenced Liability LesseeOperatingLeaseLeaseNotyetCommencedLiability	1900000	USD
CY2021Q3	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	3882000	USD
CY2021Q3	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	15609000	USD
CY2021Q3	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	14912000	USD
CY2021Q3	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	12593000	USD
CY2021Q3	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	6375000	USD
CY2021Q3	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	38032000	USD
CY2021Q3	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	91403000	USD
CY2021Q2	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	500000000	USD
CY2021Q3	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	325000000	USD
CY2020Q2	snps	Accelerated Share Repurchases Settlement Of Equity Forward AcceleratedShareRepurchasesSettlementOfEquityForward	148953	shares
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-48606000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-57463000	USD
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	180000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	3389000	USD
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	15000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-48411000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-54074000	USD
CY2021Q2	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	500000000	USD
CY2021Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	521000	shares
CY2020Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	149000	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	2114000	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	1380000	shares
CY2021Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	140000000	USD
CY2020Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	20000000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	538082000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	200000000	USD
CY2021Q3	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	564000	shares
CY2020Q3	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	999000	shares
	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	2093000	shares
	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	2807000	shares
	snps	Accelerated Share Repurchases Settlement Of Equity Forward AcceleratedShareRepurchasesSettlementOfEquityForward	99573	shares
CY2021Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	85162000	USD
CY2020Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	61837000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	248530000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	170155000	USD
CY2021Q3	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	13277000	USD
CY2020Q3	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	10562000	USD
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	38746000	USD
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	29062000	USD
CY2021Q3	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	71885000	USD
CY2020Q3	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	51275000	USD
	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	209784000	USD
	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	141093000	USD
CY2021Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	594900000	USD
CY2021Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y3M18D
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	30896000	USD
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	50087000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	143100000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	152397000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	198646000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	252911000	USD
	us-gaap	Net Income Loss NetIncomeLoss	556069000	USD
	us-gaap	Net Income Loss NetIncomeLoss	466892000	USD
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	152635000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	151352000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	152619000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150731000	shares
CY2021Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	4272000	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	4621000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	4539000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	4343000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	156907000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	155973000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	157158000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	155074000	shares
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.30
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.67
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.64
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.10
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.27
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.62
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.54
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.01
CY2021Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	355000	shares
CY2020Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	405000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	610000	shares
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	Segment
CY2021Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1057130000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	964134000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3051774000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2659842000	USD
	snps	Gain Or Loss On Assets Related To Deferred Compensation Plan GainOrLossOnAssetsRelatedToDeferredCompensationPlan	62697000	USD
CY2021Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	201923000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	210598000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	544502000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	424009000	USD
CY2021Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1057130000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	964134000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3051774000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2659842000	USD
	snps	Gain Or Loss On Assets Related To Deferred Compensation Plan GainOrLossOnAssetsRelatedToDeferredCompensationPlan	20166000	USD
CY2021Q3	us-gaap	Interest Income Other InterestIncomeOther	657000	USD
CY2020Q3	us-gaap	Interest Income Other InterestIncomeOther	780000	USD
	us-gaap	Interest Income Other InterestIncomeOther	1413000	USD
	us-gaap	Interest Income Other InterestIncomeOther	3137000	USD
CY2021Q3	us-gaap	Interest Expense InterestExpense	757000	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	941000	USD
	us-gaap	Interest Expense InterestExpense	2301000	USD
	us-gaap	Interest Expense InterestExpense	4390000	USD
CY2021Q3	snps	Gain Or Loss On Assets Related To Deferred Compensation Plan GainOrLossOnAssetsRelatedToDeferredCompensationPlan	10473000	USD
CY2020Q3	snps	Gain Or Loss On Assets Related To Deferred Compensation Plan GainOrLossOnAssetsRelatedToDeferredCompensationPlan	26153000	USD
CY2021Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	2756000	USD
CY2020Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	123000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	5283000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	5255000	USD
CY2021Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1715000	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	141000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-5158000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1584000	USD
CY2021Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	11414000	USD
CY2020Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	26256000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	61934000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	22584000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	213337000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	236854000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	606436000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	446593000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14945000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-16057000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	51214000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-20299000	USD
CY2021Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.070
CY2020Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.068
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.084
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.045
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210

Files In Submission

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0000883241-21-000017-index-headers.html	Edgar Link	pending
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$SNPS
SYNOPSYS INC Stock $snps

2021 Q3 Form 10-Q Financial Statement

#000088324121000017 Filed on August 20, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SNPS SYNOPSYS INC Stock $snps

2021 Q3 Form 10-Q Financial Statement

#000088324121000017 Filed on August 20, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SNPS
SYNOPSYS INC Stock $snps