    <SEC-DOCUMENT>0001193125-25-049943-index.html : 20250307
    <SEC-HEADER>0001193125-25-049943.hdr.sgml : 20250307
    <ACCEPTANCE-DATETIME>20250307170022
    ACCESSION NUMBER:		0001193125-25-049943
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		53
    CONFORMED PERIOD OF REPORT:	20250429
    FILED AS OF DATE:		20250307
    DATE AS OF CHANGE:		20250307

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			KIRBY CORP
    		CENTRAL INDEX KEY:			0000056047
    		STANDARD INDUSTRIAL CLASSIFICATION:	WATER TRANSPORTATION [4400]
    		ORGANIZATION NAME:           	01 Energy & Transportation
    		IRS NUMBER:				741884980
    		STATE OF INCORPORATION:			NV
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-07615
    		FILM NUMBER:		25720993

    	BUSINESS ADDRESS:
    		STREET 1:		55 WAUGH DRIVE SUITE 1000
    		CITY:			HOUSTON
    		STATE:			TX
    		ZIP:			77007
    		BUSINESS PHONE:		7134351000

    	MAIL ADDRESS:
    		STREET 1:		P.O. BOX 1745
    		CITY:			HOUSTON
    		STATE:			TX
    		ZIP:			77251

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	KIRBY EXPLORATION CO INC
    		DATE OF NAME CHANGE:	19900510
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>d693056ddef14a.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: d693056ddef14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>2
    <FILENAME>kex-20241231.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
    <TEXT>
    Document 2 - file: kex-20241231.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.DEF
    <SEQUENCE>3
    <FILENAME>kex-20241231_def.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE
    <TEXT>
    Document 3 - file: kex-20241231_def.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>4
    <FILENAME>kex-20241231_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
    <TEXT>
    Document 4 - file: kex-20241231_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>5
    <FILENAME>kex-20241231_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
    <TEXT>
    Document 5 - file: kex-20241231_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>g693056g01a07.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: g693056g01a07.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>g693056g01b07.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: g693056g01b07.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>g693056g01s01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: g693056g01s01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>g693056g03t27.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: g693056g03t27.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>g693056g04p04.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: g693056g04p04.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>g693056g04v63.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: g693056g04v63.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>g693056g04w44.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: g693056g04w44.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>g693056g05p05.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: g693056g05p05.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>g693056g06a10.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: g693056g06a10.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>g693056g06b20.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: g693056g06b20.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>g693056g06c30.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: g693056g06c30.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>g693056g06d40.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: g693056g06d40.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>g693056g06u11.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: g693056g06u11.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>g693056g22a22.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 19 - file: g693056g22a22.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>g693056g22m02.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 20 - file: g693056g22m02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>g693056g23a23.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 21 - file: g693056g23a23.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>g693056g24a24.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 22 - file: g693056g24a24.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>g693056g25a25.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 23 - file: g693056g25a25.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>g693056g27a27.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 24 - file: g693056g27a27.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>g693056g29a29.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 25 - file: g693056g29a29.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>g693056g30a30.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 26 - file: g693056g30a30.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>g693056g31a31.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 27 - file: g693056g31a31.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>g693056g54r97.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 28 - file: g693056g54r97.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>g693056g60p45.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 29 - file: g693056g60p45.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>30
    <FILENAME>g693056g60s20.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 30 - file: g693056g60s20.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>31
    <FILENAME>g693056g62v99.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 31 - file: g693056g62v99.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>32
    <FILENAME>g693056g65f55.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 32 - file: g693056g65f55.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>33
    <FILENAME>g693056g78s40.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 33 - file: g693056g78s40.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>34
    <FILENAME>g693056page004.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 34 - file: g693056page004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>35
    <FILENAME>g693056page004a.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 35 - file: g693056page004a.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>36
    <FILENAME>g693056page004b.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 36 - file: g693056page004b.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>37
    <FILENAME>g693056page004c.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 37 - file: g693056page004c.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>38
    <FILENAME>g693056page004d.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 38 - file: g693056page004d.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>39
    <FILENAME>g693056page004e.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 39 - file: g693056page004e.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>40
    <FILENAME>g693056page004f.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 40 - file: g693056page004f.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>41
    <FILENAME>g693056page005a.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 41 - file: g693056page005a.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>42
    <FILENAME>g693056page005b.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 42 - file: g693056page005b.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>43
    <FILENAME>g693056page005c.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 43 - file: g693056page005c.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>45
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 45 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>46
    <FILENAME>R2.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 46 - file: R2.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>47
    <FILENAME>R3.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 47 - file: R3.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>ZIP
    <SEQUENCE>54
    <FILENAME>0001193125-25-049943-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 54 - file: 0001193125-25-049943-xbrl.zip

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>55
    <FILENAME>d693056ddef14a_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 55 - file: d693056ddef14a_htm.html

    Document 55 - RAW XML: d693056ddef14a_htm.xml

    </DOCUMENT>
    </SEC-DOCUMENT>