3.20.4 html 191 311 1 true 54 0 false 5 false false R1.htm 0001001 - Document - DOCUMENT AND ENTITY INFORMATION Sheet http://www.heico.com/role/DOCUMENTANDENTITYINFORMATION DOCUMENT AND ENTITY INFORMATION Cover 1 false false R2.htm 1001002 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS - UNAUDITED Sheet http://www.heico.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - UNAUDITED Statements 2 false false R3.htm 1002003 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS - UNAUDITED [PARENTHETICAL] Sheet http://www.heico.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUNAUDITEDPARENTHETICAL CONDENSED CONSOLIDATED BALANCE SHEETS - UNAUDITED [PARENTHETICAL] Statements 3 false false R4.htm 1003004 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - UNAUDITED Sheet http://www.heico.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSUNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - UNAUDITED Statements 4 false false R5.htm 1004005 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Sheet http://www.heico.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Statements 5 false false R6.htm 1005006 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY AND COMPREHENSIVE INCOME - UNAUDITED Sheet http://www.heico.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSHAREHOLDERSEQUITYANDCOMPREHENSIVEINCOMEUNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY AND COMPREHENSIVE INCOME - UNAUDITED Statements 6 false false R7.htm 1006007 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY AND COMPREHENSIVE INCOME - UNAUDITED [PARENTHETICAL] Sheet http://www.heico.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSHAREHOLDERSEQUITYANDCOMPREHENSIVEINCOMEUNAUDITEDPARENTHETICAL CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY AND COMPREHENSIVE INCOME - UNAUDITED [PARENTHETICAL] Statements 7 false false R8.htm 1007008 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - UNAUDITED Sheet http://www.heico.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - UNAUDITED Statements 8 false false R9.htm 2101101 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Sheet http://www.heico.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Notes 9 false false R10.htm 2104102 - Disclosure - SELECTED FINANCIAL STATEMENT INFORMATION Sheet http://www.heico.com/role/SELECTEDFINANCIALSTATEMENTINFORMATION SELECTED FINANCIAL STATEMENT INFORMATION Notes 10 false false R11.htm 2113103 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS Sheet http://www.heico.com/role/GOODWILLANDOTHERINTANGIBLEASSETS GOODWILL AND OTHER INTANGIBLE ASSETS Notes 11 false false R12.htm 2118104 - Disclosure - LONG-TERM DEBT Sheet http://www.heico.com/role/LONGTERMDEBT LONG-TERM DEBT Notes 12 false false R13.htm 2122105 - Disclosure - REVENUE Sheet http://www.heico.com/role/REVENUE REVENUE Notes 13 false false R14.htm 2128106 - Disclosure - INCOME TAXES Sheet http://www.heico.com/role/INCOMETAXES INCOME TAXES Notes 14 false false R15.htm 2130107 - Disclosure - FAIR VALUE MEASUREMENTS Sheet http://www.heico.com/role/FAIRVALUEMEASUREMENTS FAIR VALUE MEASUREMENTS Notes 15 false false R16.htm 2136108 - Disclosure - NET INCOME PER SHARE ATTRIBUTABLE TO HEICO SHAREHOLDERS Sheet http://www.heico.com/role/NETINCOMEPERSHAREATTRIBUTABLETOHEICOSHAREHOLDERS NET INCOME PER SHARE ATTRIBUTABLE TO HEICO SHAREHOLDERS Notes 16 false false R17.htm 2139109 - Disclosure - OPERATING SEGMENTS Sheet http://www.heico.com/role/OPERATINGSEGMENTS OPERATING SEGMENTS Notes 17 false false R18.htm 2143110 - Disclosure - COMMITMENTS AND CONTINGENCIES Sheet http://www.heico.com/role/COMMITMENTSANDCONTINGENCIES COMMITMENTS AND CONTINGENCIES Notes 18 false false R19.htm 2202201 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) Sheet http://www.heico.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) Policies 19 false false R20.htm 2305301 - Disclosure - SELECTED FINANCIAL STATEMENT INFORMATION (Tables) Sheet http://www.heico.com/role/SELECTEDFINANCIALSTATEMENTINFORMATIONTables SELECTED FINANCIAL STATEMENT INFORMATION (Tables) Tables http://www.heico.com/role/SELECTEDFINANCIALSTATEMENTINFORMATION 20 false false R21.htm 2314302 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS (Tables) Sheet http://www.heico.com/role/GOODWILLANDOTHERINTANGIBLEASSETSTables GOODWILL AND OTHER INTANGIBLE ASSETS (Tables) Tables http://www.heico.com/role/GOODWILLANDOTHERINTANGIBLEASSETS 21 false false R22.htm 2319303 - Disclosure - LONG-TERM DEBT (Tables) Sheet http://www.heico.com/role/LONGTERMDEBTTables LONG-TERM DEBT (Tables) Tables http://www.heico.com/role/LONGTERMDEBT 22 false false R23.htm 2323304 - Disclosure - REVENUE (Tables) Sheet http://www.heico.com/role/REVENUETables REVENUE (Tables) Tables http://www.heico.com/role/REVENUE 23 false false R24.htm 2331305 - Disclosure - FAIR VALUE MEASUREMENTS (Tables) Sheet http://www.heico.com/role/FAIRVALUEMEASUREMENTSTables FAIR VALUE MEASUREMENTS (Tables) Tables http://www.heico.com/role/FAIRVALUEMEASUREMENTS 24 false false R25.htm 2337306 - Disclosure - NET INCOME PER SHARE ATTRIBUTABLE TO HEICO SHAREHOLDERS (Tables) Sheet http://www.heico.com/role/NETINCOMEPERSHAREATTRIBUTABLETOHEICOSHAREHOLDERSTables NET INCOME PER SHARE ATTRIBUTABLE TO HEICO SHAREHOLDERS (Tables) Tables http://www.heico.com/role/NETINCOMEPERSHAREATTRIBUTABLETOHEICOSHAREHOLDERS 25 false false R26.htm 2340307 - Disclosure - OPERATING SEGMENTS (Tables) Sheet http://www.heico.com/role/OPERATINGSEGMENTSTables OPERATING SEGMENTS (Tables) Tables http://www.heico.com/role/OPERATINGSEGMENTS 26 false false R27.htm 2344308 - Disclosure - COMMITMENTS AND CONTINGENCIES (Tables) Sheet http://www.heico.com/role/COMMITMENTSANDCONTINGENCIESTables COMMITMENTS AND CONTINGENCIES (Tables) Tables http://www.heico.com/role/COMMITMENTSANDCONTINGENCIES 27 false false R28.htm 2403401 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Textuals) Sheet http://www.heico.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESDetailsTextuals SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Textuals) Details 28 false false R29.htm 2406402 - Disclosure - SELECTED FINANCIAL STATEMENT INFORMATION (Accounts Receivable) (Details) Sheet http://www.heico.com/role/SELECTEDFINANCIALSTATEMENTINFORMATIONAccountsReceivableDetails SELECTED FINANCIAL STATEMENT INFORMATION (Accounts Receivable) (Details) Details http://www.heico.com/role/SELECTEDFINANCIALSTATEMENTINFORMATIONTables 29 false false R30.htm 2407403 - Disclosure - SELECTED FINANCIAL STATEMENT INFORMATION (Inventories) (Details) Sheet http://www.heico.com/role/SELECTEDFINANCIALSTATEMENTINFORMATIONInventoriesDetails SELECTED FINANCIAL STATEMENT INFORMATION (Inventories) (Details) Details http://www.heico.com/role/SELECTEDFINANCIALSTATEMENTINFORMATIONTables 30 false false R31.htm 2408404 - Disclosure - SELECTED FINANCIAL STATEMENT INFORMATION (Property, Plant and Equipment) (Details) Sheet http://www.heico.com/role/SELECTEDFINANCIALSTATEMENTINFORMATIONPropertyPlantandEquipmentDetails SELECTED FINANCIAL STATEMENT INFORMATION (Property, Plant and Equipment) (Details) Details http://www.heico.com/role/SELECTEDFINANCIALSTATEMENTINFORMATIONTables 31 false false R32.htm 2409405 - Disclosure - SELECTED FINANCIAL STATEMENT INFORMATION (Research and Development Expenses) (Details) Sheet http://www.heico.com/role/SELECTEDFINANCIALSTATEMENTINFORMATIONResearchandDevelopmentExpensesDetails SELECTED FINANCIAL STATEMENT INFORMATION (Research and Development Expenses) (Details) Details http://www.heico.com/role/SELECTEDFINANCIALSTATEMENTINFORMATIONTables 32 false false R33.htm 2410406 - Disclosure - SELECTED FINANCIAL STATEMENT INFORMATION (Redeemable Noncontrolling Interests) (Details) Sheet http://www.heico.com/role/SELECTEDFINANCIALSTATEMENTINFORMATIONRedeemableNoncontrollingInterestsDetails SELECTED FINANCIAL STATEMENT INFORMATION (Redeemable Noncontrolling Interests) (Details) Details http://www.heico.com/role/SELECTEDFINANCIALSTATEMENTINFORMATIONTables 33 false false R34.htm 2411407 - Disclosure - SELECTED FINANCIAL STATEMENT INFORMATION (Accumulated Other Comprehensive Loss) (Details) Sheet http://www.heico.com/role/SELECTEDFINANCIALSTATEMENTINFORMATIONAccumulatedOtherComprehensiveLossDetails SELECTED FINANCIAL STATEMENT INFORMATION (Accumulated Other Comprehensive Loss) (Details) Details http://www.heico.com/role/SELECTEDFINANCIALSTATEMENTINFORMATIONTables 34 false false R35.htm 2412408 - Disclosure - SELECTED FINANCIAL STATEMENT INFORMATION (Details Textuals) Sheet http://www.heico.com/role/SELECTEDFINANCIALSTATEMENTINFORMATIONDetailsTextuals SELECTED FINANCIAL STATEMENT INFORMATION (Details Textuals) Details http://www.heico.com/role/SELECTEDFINANCIALSTATEMENTINFORMATIONTables 35 false false R36.htm 2415409 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS (Goodwill) (Details) Sheet http://www.heico.com/role/GOODWILLANDOTHERINTANGIBLEASSETSGoodwillDetails GOODWILL AND OTHER INTANGIBLE ASSETS (Goodwill) (Details) Details http://www.heico.com/role/GOODWILLANDOTHERINTANGIBLEASSETSTables 36 false false R37.htm 2416410 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS (Identifiable Intangible Assets) (Details) Sheet http://www.heico.com/role/GOODWILLANDOTHERINTANGIBLEASSETSIdentifiableIntangibleAssetsDetails GOODWILL AND OTHER INTANGIBLE ASSETS (Identifiable Intangible Assets) (Details) Details http://www.heico.com/role/GOODWILLANDOTHERINTANGIBLEASSETSTables 37 false false R38.htm 2417411 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS (Details Textuals) Sheet http://www.heico.com/role/GOODWILLANDOTHERINTANGIBLEASSETSDetailsTextuals GOODWILL AND OTHER INTANGIBLE ASSETS (Details Textuals) Details http://www.heico.com/role/GOODWILLANDOTHERINTANGIBLEASSETSTables 38 false false R39.htm 2420412 - Disclosure - LONG-TERM DEBT (Details) Sheet http://www.heico.com/role/LONGTERMDEBTDetails LONG-TERM DEBT (Details) Details http://www.heico.com/role/LONGTERMDEBTTables 39 false false R40.htm 2421413 - Disclosure - LONG-TERM DEBT (Details Textuals) Sheet http://www.heico.com/role/LONGTERMDEBTDetailsTextuals LONG-TERM DEBT (Details Textuals) Details http://www.heico.com/role/LONGTERMDEBTTables 40 false false R41.htm 2424414 - Disclosure - REVENUE (Contract Assets and Liabilities) (Details) Sheet http://www.heico.com/role/REVENUEContractAssetsandLiabilitiesDetails REVENUE (Contract Assets and Liabilities) (Details) Details http://www.heico.com/role/REVENUETables 41 false false R42.htm 2425415 - Disclosure - REVENUE (Disaggregation of Revenue, by Product Line) (Details) Sheet http://www.heico.com/role/REVENUEDisaggregationofRevenuebyProductLineDetails REVENUE (Disaggregation of Revenue, by Product Line) (Details) Details http://www.heico.com/role/REVENUETables 42 false false R43.htm 2426416 - Disclosure - REVENUE (Disaggregation of Revenue, by Industry) (Details) Sheet http://www.heico.com/role/REVENUEDisaggregationofRevenuebyIndustryDetails REVENUE (Disaggregation of Revenue, by Industry) (Details) Details http://www.heico.com/role/REVENUETables 43 false false R44.htm 2427417 - Disclosure - REVENUE (Details Textuals) Sheet http://www.heico.com/role/REVENUEDetailsTextuals REVENUE (Details Textuals) Details http://www.heico.com/role/REVENUETables 44 false false R45.htm 2429418 - Disclosure - INCOME TAXES (Details Textuals) Sheet http://www.heico.com/role/INCOMETAXESDetailsTextuals INCOME TAXES (Details Textuals) Details http://www.heico.com/role/INCOMETAXES 45 false false R46.htm 2432419 - Disclosure - FAIR VALUE MEASUREMENTS (Fair Value Hierarchy, by Category) (Details) Sheet http://www.heico.com/role/FAIRVALUEMEASUREMENTSFairValueHierarchybyCategoryDetails FAIR VALUE MEASUREMENTS (Fair Value Hierarchy, by Category) (Details) Details http://www.heico.com/role/FAIRVALUEMEASUREMENTSTables 46 false false R47.htm 2433420 - Disclosure - FAIR VALUE MEASUREMENTS (Level 3 Valuation Inputs) (Details) Sheet http://www.heico.com/role/FAIRVALUEMEASUREMENTSLevel3ValuationInputsDetails FAIR VALUE MEASUREMENTS (Level 3 Valuation Inputs) (Details) Details http://www.heico.com/role/FAIRVALUEMEASUREMENTSTables 47 false false R48.htm 2434421 - Disclosure - FAIR VALUE MEASUREMENTS (Contingent Consideration Liability) (Details) Sheet http://www.heico.com/role/FAIRVALUEMEASUREMENTSContingentConsiderationLiabilityDetails FAIR VALUE MEASUREMENTS (Contingent Consideration Liability) (Details) Details http://www.heico.com/role/FAIRVALUEMEASUREMENTSTables 48 false false R49.htm 2435422 - Disclosure - FAIR VALUE MEASUREMENTS (Details Textuals) Sheet http://www.heico.com/role/FAIRVALUEMEASUREMENTSDetailsTextuals FAIR VALUE MEASUREMENTS (Details Textuals) Details http://www.heico.com/role/FAIRVALUEMEASUREMENTSTables 49 false false R50.htm 2438423 - Disclosure - NET INCOME PER SHARE ATTRIBUTABLE TO HEICO SHAREHOLDERS (Details) Sheet http://www.heico.com/role/NETINCOMEPERSHAREATTRIBUTABLETOHEICOSHAREHOLDERSDetails NET INCOME PER SHARE ATTRIBUTABLE TO HEICO SHAREHOLDERS (Details) Details http://www.heico.com/role/NETINCOMEPERSHAREATTRIBUTABLETOHEICOSHAREHOLDERSTables 50 false false R51.htm 2441424 - Disclosure - OPERATING SEGMENTS (Details) Sheet http://www.heico.com/role/OPERATINGSEGMENTSDetails OPERATING SEGMENTS (Details) Details http://www.heico.com/role/OPERATINGSEGMENTSTables 51 false false R52.htm 2442425 - Disclosure - OPERATING SEGMENTS (Details 1) Sheet http://www.heico.com/role/OPERATINGSEGMENTSDetails1 OPERATING SEGMENTS (Details 1) Details http://www.heico.com/role/OPERATINGSEGMENTSTables 52 false false R53.htm 2445426 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details) Sheet http://www.heico.com/role/COMMITMENTSANDCONTINGENCIESDetails COMMITMENTS AND CONTINGENCIES (Details) Details http://www.heico.com/role/COMMITMENTSANDCONTINGENCIESTables 53 false false R54.htm 2446427 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details Textuals) Sheet http://www.heico.com/role/COMMITMENTSANDCONTINGENCIESDetailsTextuals COMMITMENTS AND CONTINGENCIES (Details Textuals) Details http://www.heico.com/role/COMMITMENTSANDCONTINGENCIESTables 54 false false All Reports Book All Reports hei-20210131.htm a13121exhibit311.htm a13121exhibit312.htm a13121exhibit321.htm a13121exhibit322.htm hei-20210131.xsd hei-20210131_cal.xml hei-20210131_def.xml hei-20210131_lab.xml hei-20210131_pre.xml http://fasb.org/us-gaap/2020-01-31 http://xbrl.sec.gov/currency/2020-01-31 http://fasb.org/srt/2020-01-31 http://xbrl.sec.gov/dei/2020-01-31 true true