    <SEC-DOCUMENT>0001140361-25-002543-index.html : 20250131
    <SEC-HEADER>0001140361-25-002543.hdr.sgml : 20250131
    <ACCEPTANCE-DATETIME>20250131084954
    ACCESSION NUMBER:		0001140361-25-002543
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		53
    CONFORMED PERIOD OF REPORT:	20250314
    FILED AS OF DATE:		20250131
    DATE AS OF CHANGE:		20250131

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			HEICO CORP
    		CENTRAL INDEX KEY:			0000046619
    		STANDARD INDUSTRIAL CLASSIFICATION:	AIRCRAFT ENGINES & ENGINE PARTS [3724]
    		ORGANIZATION NAME:           	04 Manufacturing
    		IRS NUMBER:				650341002
    		STATE OF INCORPORATION:			FL
    		FISCAL YEAR END:			1031

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-04604
    		FILM NUMBER:		25576041

    	BUSINESS ADDRESS:
    		STREET 1:		3000 TAFT ST
    		CITY:			HOLLYWOOD
    		STATE:			FL
    		ZIP:			33021
    		BUSINESS PHONE:		954-987-4000

    	MAIL ADDRESS:
    		STREET 1:		3000 TAFT STREET
    		CITY:			HOLLYWOOD
    		STATE:			FL
    		ZIP:			33021

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	HEINICKE INSTRUMENTS CO
    		DATE OF NAME CHANGE:	19860417
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>ny20040474x1_def14a.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: ny20040474x1_def14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>2
    <FILENAME>hei-20250314.xsd
    <DESCRIPTION>INLINE XBRL TAXONOMY EXTENSION - SCHEMA
    <TEXT>
    Document 2 - file: hei-20250314.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.DEF
    <SEQUENCE>3
    <FILENAME>hei-20250314_def.xml
    <DESCRIPTION>INLINE XBRL TAXONOMY EXTENSION - DEFINITION LINKBASE
    <TEXT>
    Document 3 - file: hei-20250314_def.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>4
    <FILENAME>hei-20250314_lab.xml
    <DESCRIPTION>INLINE XBRL TAXONOMY EXTENSION - LABEL LINKBASE
    <TEXT>
    Document 4 - file: hei-20250314_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>5
    <FILENAME>hei-20250314_pre.xml
    <DESCRIPTION>INLINE XBRL TAXONOMY EXTENSION - PRESENTATION LINKBASE
    <TEXT>
    Document 5 - file: hei-20250314_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>logo_heico-footer.jpg
    <TEXT>
    Document 6 - file: logo_heico-footer.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>logo_heico2.jpg
    <TEXT>
    Document 7 - file: logo_heico2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>ny20040474x1_ahenriques.jpg
    <TEXT>
    Document 8 - file: ny20040474x1_ahenriques.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>ny20040474x1_aschreisheim.jpg
    <TEXT>
    Document 9 - file: ny20040474x1_aschreisheim.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>ny20040474x1_bargraph01x1.jpg
    <TEXT>
    Document 10 - file: ny20040474x1_bargraph01x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>ny20040474x1_bcv.jpg
    <TEXT>
    Document 11 - file: ny20040474x1_bcv.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>ny20040474x1_cfine.jpg
    <TEXT>
    Document 12 - file: ny20040474x1_cfine.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>ny20040474x1_cov.jpg
    <TEXT>
    Document 13 - file: ny20040474x1_cov.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>ny20040474x1_emendelson.jpg
    <TEXT>
    Document 14 - file: ny20040474x1_emendelson.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>ny20040474x1_fschwitter.jpg
    <TEXT>
    Document 15 - file: ny20040474x1_fschwitter.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>ny20040474x1_graphic-blue.jpg
    <TEXT>
    Document 16 - file: ny20040474x1_graphic-blue.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>ny20040474x1_icon1.jpg
    <TEXT>
    Document 17 - file: ny20040474x1_icon1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>ny20040474x1_icon2.jpg
    <TEXT>
    Document 18 - file: ny20040474x1_icon2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>ny20040474x1_icon3.jpg
    <TEXT>
    Document 19 - file: ny20040474x1_icon3.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>ny20040474x1_icon4.jpg
    <TEXT>
    Document 20 - file: ny20040474x1_icon4.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>ny20040474x1_icon5.jpg
    <TEXT>
    Document 21 - file: ny20040474x1_icon5.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>ny20040474x1_icon6.jpg
    <TEXT>
    Document 22 - file: ny20040474x1_icon6.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>ny20040474x1_icon7.jpg
    <TEXT>
    Document 23 - file: ny20040474x1_icon7.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>ny20040474x1_jneitzel.jpg
    <TEXT>
    Document 24 - file: ny20040474x1_jneitzel.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>ny20040474x1_letter1.jpg
    <TEXT>
    Document 25 - file: ny20040474x1_letter1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>ny20040474x1_letter2.jpg
    <TEXT>
    Document 26 - file: ny20040474x1_letter2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>ny20040474x1_lettersigs.jpg
    <TEXT>
    Document 27 - file: ny20040474x1_lettersigs.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>ny20040474x1_linechart1x1.jpg
    <TEXT>
    Document 28 - file: ny20040474x1_linechart1x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>ny20040474x1_linechart2x2.jpg
    <TEXT>
    Document 29 - file: ny20040474x1_linechart2x2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>30
    <FILENAME>ny20040474x1_linechart3x2.jpg
    <TEXT>
    Document 30 - file: ny20040474x1_linechart3x2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>31
    <FILENAME>ny20040474x1_linechart4x1.jpg
    <TEXT>
    Document 31 - file: ny20040474x1_linechart4x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>32
    <FILENAME>ny20040474x1_lmendelson.jpg
    <TEXT>
    Document 32 - file: ny20040474x1_lmendelson.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>33
    <FILENAME>ny20040474x1_mhildebrandt.jpg
    <TEXT>
    Document 33 - file: ny20040474x1_mhildebrandt.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>34
    <FILENAME>ny20040474x1_pvp1x1.jpg
    <TEXT>
    Document 34 - file: ny20040474x1_pvp1x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>35
    <FILENAME>ny20040474x1_pvp2x2.jpg
    <TEXT>
    Document 35 - file: ny20040474x1_pvp2x2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>36
    <FILENAME>ny20040474x1_pvp3x2.jpg
    <TEXT>
    Document 36 - file: ny20040474x1_pvp3x2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>37
    <FILENAME>ny20040474x1_tculligan.jpg
    <TEXT>
    Document 37 - file: ny20040474x1_tculligan.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>38
    <FILENAME>ny20040474x1_vmendelson.jpg
    <TEXT>
    Document 38 - file: ny20040474x1_vmendelson.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>39
    <FILENAME>ny20040474x1_wedo.jpg
    <TEXT>
    Document 39 - file: ny20040474x1_wedo.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>40
    <FILENAME>ny20040474x1_wedont.jpg
    <TEXT>
    Document 40 - file: ny20040474x1_wedont.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>41
    <FILENAME>ny20040474x1_when.jpg
    <TEXT>
    Document 41 - file: ny20040474x1_when.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>42
    <FILENAME>ny20040474x1_where.jpg
    <TEXT>
    Document 42 - file: ny20040474x1_where.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>44
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 44 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>45
    <FILENAME>R2.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 45 - file: R2.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>46
    <FILENAME>R3.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 46 - file: R3.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>47
    <FILENAME>R4.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 47 - file: R4.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>48
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 48 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>49
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 49 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>51
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 51 - file: FilingSummary.html

    Document 51 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>53
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 53 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>54
    <FILENAME>ny20040474x1_def14a_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 54 - file: ny20040474x1_def14a_htm.html

    Document 54 - RAW XML: ny20040474x1_def14a_htm.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>55
    <FILENAME>0001140361-25-002543-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 55 - file: 0001140361-25-002543-xbrl.zip

    </DOCUMENT>
    </SEC-DOCUMENT>