    <SEC-DOCUMENT>0001104659-24-132904-index.html : 20241231
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    <ACCEPTANCE-DATETIME>20241231170247
    ACCESSION NUMBER:		0001104659-24-132904
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		38
    CONFORMED PERIOD OF REPORT:	20241230
    ITEM INFORMATION:		Entry into a Material Definitive Agreement
    ITEM INFORMATION:		Completion of Acquisition or Disposition of Assets
    ITEM INFORMATION:		Unregistered Sales of Equity Securities
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20241231
    DATE AS OF CHANGE:		20241231

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			HAWAIIAN ELECTRIC INDUSTRIES INC
    		CENTRAL INDEX KEY:			0000354707
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
    		ORGANIZATION NAME:           	01 Energy & Transportation
    		IRS NUMBER:				990208097
    		STATE OF INCORPORATION:			HI
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-08503
    		FILM NUMBER:		241593651

    	BUSINESS ADDRESS:
    		STREET 1:		1001 BISHOP STREET, SUITE 2900
    		CITY:			HONOLULU
    		STATE:			HI
    		ZIP:			96813
    		BUSINESS PHONE:		8085435662

    	MAIL ADDRESS:
    		STREET 1:		P.O. BOX 730
    		CITY:			HONOLULU
    		STATE:			HI
    		ZIP:			96808-0730
    </SEC-HEADER>
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    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>tm2432285d1_8k.htm
    <DESCRIPTION>FORM 8-K
    <TEXT>
    Document 1 - file: tm2432285d1_8k.htm

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    <TYPE>EX-10.1
    <SEQUENCE>2
    <FILENAME>tm2432285d1_ex10-1.htm
    <DESCRIPTION>EXHIBIT 10.1
    <TEXT>
    Document 2 - file: tm2432285d1_ex10-1.htm

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    <DOCUMENT>
    <TYPE>EX-10.2
    <SEQUENCE>3
    <FILENAME>tm2432285d1_ex10-2.htm
    <DESCRIPTION>EXHIBIT 10.2
    <TEXT>
    Document 3 - file: tm2432285d1_ex10-2.htm

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    <TYPE>EX-10.3
    <SEQUENCE>4
    <FILENAME>tm2432285d1_ex10-3.htm
    <DESCRIPTION>EXHIBIT 10.3
    <TEXT>
    Document 4 - file: tm2432285d1_ex10-3.htm

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    <SEQUENCE>5
    <FILENAME>tm2432285d1_ex10-4.htm
    <DESCRIPTION>EXHIBIT 10.4
    <TEXT>
    Document 5 - file: tm2432285d1_ex10-4.htm

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    <TYPE>EX-10.5
    <SEQUENCE>6
    <FILENAME>tm2432285d1_ex10-5.htm
    <DESCRIPTION>EXHIBIT 10.5
    <TEXT>
    Document 6 - file: tm2432285d1_ex10-5.htm

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    <SEQUENCE>7
    <FILENAME>tm2432285d1_ex10-6.htm
    <DESCRIPTION>EXHIBIT 10.6
    <TEXT>
    Document 7 - file: tm2432285d1_ex10-6.htm

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    <DOCUMENT>
    <TYPE>EX-10.7
    <SEQUENCE>8
    <FILENAME>tm2432285d1_ex10-7.htm
    <DESCRIPTION>EXHIBIT 10.7
    <TEXT>
    Document 8 - file: tm2432285d1_ex10-7.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.8
    <SEQUENCE>9
    <FILENAME>tm2432285d1_ex10-8.htm
    <DESCRIPTION>EXHIBIT 10.8
    <TEXT>
    Document 9 - file: tm2432285d1_ex10-8.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.9
    <SEQUENCE>10
    <FILENAME>tm2432285d1_ex10-9.htm
    <DESCRIPTION>EXHIBIT 10.9
    <TEXT>
    Document 10 - file: tm2432285d1_ex10-9.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.10
    <SEQUENCE>11
    <FILENAME>tm2432285d1_ex10-10.htm
    <DESCRIPTION>EXHIBIT 10.10
    <TEXT>
    Document 11 - file: tm2432285d1_ex10-10.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.11
    <SEQUENCE>12
    <FILENAME>tm2432285d1_ex10-11.htm
    <DESCRIPTION>EXHIBIT 10.11
    <TEXT>
    Document 12 - file: tm2432285d1_ex10-11.htm

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    <DOCUMENT>
    <TYPE>EX-10.12
    <SEQUENCE>13
    <FILENAME>tm2432285d1_ex10-12.htm
    <DESCRIPTION>EXHIBIT 10.12
    <TEXT>
    Document 13 - file: tm2432285d1_ex10-12.htm

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    <DOCUMENT>
    <TYPE>EX-10.13
    <SEQUENCE>14
    <FILENAME>tm2432285d1_ex10-13.htm
    <DESCRIPTION>EXHIBIT 10.13
    <TEXT>
    Document 14 - file: tm2432285d1_ex10-13.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.14
    <SEQUENCE>15
    <FILENAME>tm2432285d1_ex10-14.htm
    <DESCRIPTION>EXHIBIT 10.14
    <TEXT>
    Document 15 - file: tm2432285d1_ex10-14.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.15
    <SEQUENCE>16
    <FILENAME>tm2432285d1_ex10-15.htm
    <DESCRIPTION>EXHIBIT 10.15
    <TEXT>
    Document 16 - file: tm2432285d1_ex10-15.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.16
    <SEQUENCE>17
    <FILENAME>tm2432285d1_ex10-16.htm
    <DESCRIPTION>EXHIBIT 10.16
    <TEXT>
    Document 17 - file: tm2432285d1_ex10-16.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.17
    <SEQUENCE>18
    <FILENAME>tm2432285d1_ex10-17.htm
    <DESCRIPTION>EXHIBIT 10.17
    <TEXT>
    Document 18 - file: tm2432285d1_ex10-17.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.18
    <SEQUENCE>19
    <FILENAME>tm2432285d1_ex10-18.htm
    <DESCRIPTION>EXHIBIT 10.18
    <TEXT>
    Document 19 - file: tm2432285d1_ex10-18.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.19
    <SEQUENCE>20
    <FILENAME>tm2432285d1_ex10-19.htm
    <DESCRIPTION>EXHIBIT 10.19
    <TEXT>
    Document 20 - file: tm2432285d1_ex10-19.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.20
    <SEQUENCE>21
    <FILENAME>tm2432285d1_ex10-20.htm
    <DESCRIPTION>EXHIBIT 10.20
    <TEXT>
    Document 21 - file: tm2432285d1_ex10-20.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.21
    <SEQUENCE>22
    <FILENAME>tm2432285d1_ex10-21.htm
    <DESCRIPTION>EXHIBIT 10.21
    <TEXT>
    Document 22 - file: tm2432285d1_ex10-21.htm

    </DOCUMENT>
    <DOCUMENT>
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    <SEQUENCE>23
    <FILENAME>tm2432285d1_ex10-22.htm
    <DESCRIPTION>EXHIBIT 10.22
    <TEXT>
    Document 23 - file: tm2432285d1_ex10-22.htm

    </DOCUMENT>
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    <SEQUENCE>24
    <FILENAME>tm2432285d1_ex10-23.htm
    <DESCRIPTION>EXHIBIT 10.23
    <TEXT>
    Document 24 - file: tm2432285d1_ex10-23.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>25
    <FILENAME>tm2432285d1_ex99-1.htm
    <DESCRIPTION>EXHIBIT 99.1
    <TEXT>
    Document 25 - file: tm2432285d1_ex99-1.htm

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    <TYPE>EX-101.SCH
    <SEQUENCE>26
    <FILENAME>he-20241230.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
    <TEXT>
    Document 26 - file: he-20241230.xsd

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    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>27
    <FILENAME>he-20241230_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
    <TEXT>
    Document 27 - file: he-20241230_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>28
    <FILENAME>he-20241230_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
    <TEXT>
    Document 28 - file: he-20241230_pre.xml

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    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>tm2432285d1img_001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 29 - file: tm2432285d1img_001.jpg

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    <SEQUENCE>31
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 31 - file: R1.htm

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    <TYPE>EXCEL
    <SEQUENCE>32
    <FILENAME>Financial_Report.xlsx
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 32 - file: Financial_Report.xlsx

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    <SEQUENCE>33
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    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 33 - file: Show.js

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    <SEQUENCE>34
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    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 34 - file: report.css

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    <TYPE>XML
    <SEQUENCE>36
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 36 - file: FilingSummary.html

    Document 36 - RAW XML: FilingSummary.xml

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    <TYPE>JSON
    <SEQUENCE>38
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 38 - file: MetaLinks.json

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    <TYPE>ZIP
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    <TEXT>
    Document 39 - file: 0001104659-24-132904-xbrl.zip

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    <SEQUENCE>40
    <FILENAME>tm2432285d1_8k_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 40 - file: tm2432285d1_8k_htm.html

    Document 40 - RAW XML: tm2432285d1_8k_htm.xml

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