    <SEC-DOCUMENT>0001193125-24-073902-index.html : 20240321
    <SEC-HEADER>0001193125-24-073902.hdr.sgml : 20240321
    <ACCEPTANCE-DATETIME>20240321163529
    ACCESSION NUMBER:		0001193125-24-073902
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		56
    CONFORMED PERIOD OF REPORT:	20240502
    FILED AS OF DATE:		20240321
    DATE AS OF CHANGE:		20240321

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			CADENCE DESIGN SYSTEMS INC
    		CENTRAL INDEX KEY:			0000813672
    		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
    		ORGANIZATION NAME:           	06 Technology
    		IRS NUMBER:				770148231
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-15867
    		FILM NUMBER:		24771889

    	BUSINESS ADDRESS:
    		STREET 1:		2655 SEELY AVENUE BLDG 5
    		CITY:			SAN JOSE
    		STATE:			CA
    		ZIP:			95134
    		BUSINESS PHONE:		4089431234

    	MAIL ADDRESS:
    		STREET 1:		2655 SEELY AVENUE
    		CITY:			SAN JOSE
    		STATE:			CA
    		ZIP:			95134

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	ECAD INC /DE/
    		DATE OF NAME CHANGE:	19880609
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>d649284ddef14a.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: d649284ddef14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>2
    <FILENAME>cdns-20231231.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
    <TEXT>
    Document 2 - file: cdns-20231231.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.DEF
    <SEQUENCE>3
    <FILENAME>cdns-20231231_def.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE
    <TEXT>
    Document 3 - file: cdns-20231231_def.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>4
    <FILENAME>cdns-20231231_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
    <TEXT>
    Document 4 - file: cdns-20231231_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>5
    <FILENAME>cdns-20231231_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
    <TEXT>
    Document 5 - file: cdns-20231231_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>g649284g00g01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: g649284g00g01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>g649284g00g02.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: g649284g00g02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>g649284g00h01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: g649284g00h01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>g649284g01a01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: g649284g01a01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>g649284g01g01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: g649284g01g01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>g649284g02b02.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: g649284g02b02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>g649284g05a01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: g649284g05a01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>g649284g07k23.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: g649284g07k23.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>g649284g09f38.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: g649284g09f38.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>g649284g09h12.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: g649284g09h12.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>g649284g12e83.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: g649284g12e83.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>g649284g21a35.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: g649284g21a35.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>g649284g21y72.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: g649284g21y72.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>g649284g37r44.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 19 - file: g649284g37r44.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>g649284g37s00.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 20 - file: g649284g37s00.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>g649284g39n38.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 21 - file: g649284g39n38.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>g649284g41v81.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 22 - file: g649284g41v81.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>g649284g43u58.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 23 - file: g649284g43u58.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>g649284g47a11.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 24 - file: g649284g47a11.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>g649284g48d09.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 25 - file: g649284g48d09.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>g649284g50d50.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 26 - file: g649284g50d50.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>g649284g50g01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 27 - file: g649284g50g01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>g649284g50g50.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 28 - file: g649284g50g50.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>g649284g50o18.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 29 - file: g649284g50o18.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>30
    <FILENAME>g649284g53g53.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 30 - file: g649284g53g53.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>31
    <FILENAME>g649284g57w61.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 31 - file: g649284g57w61.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>32
    <FILENAME>g649284g58g58.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 32 - file: g649284g58g58.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>33
    <FILENAME>g649284g62z73.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 33 - file: g649284g62z73.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>34
    <FILENAME>g649284g64q31.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 34 - file: g649284g64q31.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>35
    <FILENAME>g649284g66y30.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 35 - file: g649284g66y30.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>36
    <FILENAME>g649284g66z52.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 36 - file: g649284g66z52.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>37
    <FILENAME>g649284g75f27.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 37 - file: g649284g75f27.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>38
    <FILENAME>g649284g76v10.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 38 - file: g649284g76v10.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>39
    <FILENAME>g649284g76v12.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 39 - file: g649284g76v12.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>40
    <FILENAME>g649284g80v38.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 40 - file: g649284g80v38.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>41
    <FILENAME>g649284g82g01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 41 - file: g649284g82g01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>42
    <FILENAME>g649284g82g02.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 42 - file: g649284g82g02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>43
    <FILENAME>g649284g82m90.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 43 - file: g649284g82m90.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>44
    <FILENAME>g649284g83g83.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 44 - file: g649284g83g83.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>45
    <FILENAME>g649284g87t57.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 45 - file: g649284g87t57.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>46
    <FILENAME>g649284g88t13.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 46 - file: g649284g88t13.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>50
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 50 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>51
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 51 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>53
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 53 - file: FilingSummary.html

    Document 53 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>55
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 55 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>56
    <FILENAME>0001193125-24-073902-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 56 - file: 0001193125-24-073902-xbrl.zip

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>59
    <FILENAME>d649284ddef14a_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 59 - file: d649284ddef14a_htm.html

    Document 59 - RAW XML: d649284ddef14a_htm.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>60
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 60 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>61
    <FILENAME>R2.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 61 - file: R2.htm

    </DOCUMENT>
    </SEC-DOCUMENT>