XML 61 R49.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Financial Assets and Liabilities - Unaudited Condensed Consolidated Statement of Operations Location and Amount of Gains and Losses on Derivative Instrument Fair Values for Designated Hedge Instruments, Net of Tax (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Jan. 31, 2018 | Jan. 31, 2017
Financial Assets and Liabilities [Line Items] |  |
Amount of gain (loss) recognized in OCI on derivatives (effective portion) | $ 13,013 | $ 6,545
Amount of gain (loss) reclassified from OCI (effective portion) | 5,306 | (3,854)
Foreign Exchange Contracts | Revenues |  |
Financial Assets and Liabilities [Line Items] |  |
Amount of gain (loss) recognized in OCI on derivatives (effective portion) | (2,626) | 8,604
Amount of gain (loss) reclassified from OCI (effective portion) | 1,667 | (1,753)
Foreign Exchange Contracts | Operating expenses |  |
Financial Assets and Liabilities [Line Items] |  |
Amount of gain (loss) recognized in OCI on derivatives (effective portion) | 15,639 | (2,059)
Amount of gain (loss) reclassified from OCI (effective portion) | $ 3,639 | $ (2,101)

X
- Definition Financial Assets and Liabilities [Line Items] + References No definition available. + Details
Name: | snps_FinancialAssetsAndLiabilitiesLineItems
Namespace Prefix: | snps_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624177-113959 + Details
Name: | us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
Name: | us-gaap_DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_SalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_OperatingExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |