    <SEC-DOCUMENT>0001046025-24-000002-index.html : 20240129
    <SEC-HEADER>0001046025-24-000002.hdr.sgml : 20240129
    <ACCEPTANCE-DATETIME>20240129165200
    ACCESSION NUMBER:		0001046025-24-000002
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		64
    CONFORMED PERIOD OF REPORT:	20240125
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Other Events
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20240129
    DATE AS OF CHANGE:		20240129

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			HERITAGE FINANCIAL CORP /WA/
    		CENTRAL INDEX KEY:			0001046025
    		STANDARD INDUSTRIAL CLASSIFICATION:	SAVINGS INSTITUTIONS, NOT FEDERALLY CHARTERED [6036]
    		ORGANIZATION NAME:           	02 Finance
    		IRS NUMBER:				911857900
    		STATE OF INCORPORATION:			WA
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-29480
    		FILM NUMBER:		24574361

    	BUSINESS ADDRESS:
    		STREET 1:		201 FIFTH AVENUE S.W.
    		STREET 2:		P O BOX 1578
    		CITY:			OLYMPIA
    		STATE:			WA
    		ZIP:			98501
    		BUSINESS PHONE:		3609431500

    	MAIL ADDRESS:
    		STREET 1:		205 5TH AVE SW
    		STREET 2:		P O BOX 1578
    		CITY:			OLYMPIA
    		STATE:			WA
    		ZIP:			98501
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>hfwa-20240125.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: hfwa-20240125.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>a8-kexhibit991q423.htm
    <DESCRIPTION>EX-99.1
    <TEXT>
    Document 2 - file: a8-kexhibit991q423.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>investorpresentationq423.htm
    <DESCRIPTION>EX-99.2
    <TEXT>
    Document 3 - file: investorpresentationq423.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>4
    <FILENAME>hfwa-20240125.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
    <TEXT>
    Document 4 - file: hfwa-20240125.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.DEF
    <SEQUENCE>5
    <FILENAME>hfwa-20240125_def.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
    <TEXT>
    Document 5 - file: hfwa-20240125_def.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>6
    <FILENAME>hfwa-20240125_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
    <TEXT>
    Document 6 - file: hfwa-20240125_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>7
    <FILENAME>hfwa-20240125_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
    <TEXT>
    Document 7 - file: hfwa-20240125_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>hfwarevisedlogoa01a02.jpg
    <TEXT>
    Document 8 - file: hfwarevisedlogoa01a02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>investorpresentationq423001.jpg
    <TEXT>
    Document 9 - file: investorpresentationq423001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>investorpresentationq423002.jpg
    <TEXT>
    Document 10 - file: investorpresentationq423002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>investorpresentationq423003.jpg
    <TEXT>
    Document 11 - file: investorpresentationq423003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>investorpresentationq423004.jpg
    <TEXT>
    Document 12 - file: investorpresentationq423004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>investorpresentationq423005.jpg
    <TEXT>
    Document 13 - file: investorpresentationq423005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>investorpresentationq423006.jpg
    <TEXT>
    Document 14 - file: investorpresentationq423006.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>investorpresentationq423007.jpg
    <TEXT>
    Document 15 - file: investorpresentationq423007.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>investorpresentationq423008.jpg
    <TEXT>
    Document 16 - file: investorpresentationq423008.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>investorpresentationq423009.jpg
    <TEXT>
    Document 17 - file: investorpresentationq423009.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>investorpresentationq423010.jpg
    <TEXT>
    Document 18 - file: investorpresentationq423010.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>investorpresentationq423011.jpg
    <TEXT>
    Document 19 - file: investorpresentationq423011.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>investorpresentationq423012.jpg
    <TEXT>
    Document 20 - file: investorpresentationq423012.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>investorpresentationq423013.jpg
    <TEXT>
    Document 21 - file: investorpresentationq423013.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>investorpresentationq423014.jpg
    <TEXT>
    Document 22 - file: investorpresentationq423014.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>investorpresentationq423015.jpg
    <TEXT>
    Document 23 - file: investorpresentationq423015.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>investorpresentationq423016.jpg
    <TEXT>
    Document 24 - file: investorpresentationq423016.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>investorpresentationq423017.jpg
    <TEXT>
    Document 25 - file: investorpresentationq423017.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>investorpresentationq423018.jpg
    <TEXT>
    Document 26 - file: investorpresentationq423018.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>investorpresentationq423019.jpg
    <TEXT>
    Document 27 - file: investorpresentationq423019.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>investorpresentationq423020.jpg
    <TEXT>
    Document 28 - file: investorpresentationq423020.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>investorpresentationq423021.jpg
    <TEXT>
    Document 29 - file: investorpresentationq423021.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>30
    <FILENAME>investorpresentationq423022.jpg
    <TEXT>
    Document 30 - file: investorpresentationq423022.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>31
    <FILENAME>investorpresentationq423023.jpg
    <TEXT>
    Document 31 - file: investorpresentationq423023.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>32
    <FILENAME>investorpresentationq423024.jpg
    <TEXT>
    Document 32 - file: investorpresentationq423024.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>33
    <FILENAME>investorpresentationq423025.jpg
    <TEXT>
    Document 33 - file: investorpresentationq423025.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>34
    <FILENAME>investorpresentationq423026.jpg
    <TEXT>
    Document 34 - file: investorpresentationq423026.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>35
    <FILENAME>investorpresentationq423027.jpg
    <TEXT>
    Document 35 - file: investorpresentationq423027.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>36
    <FILENAME>investorpresentationq423028.jpg
    <TEXT>
    Document 36 - file: investorpresentationq423028.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>37
    <FILENAME>investorpresentationq423029.jpg
    <TEXT>
    Document 37 - file: investorpresentationq423029.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>38
    <FILENAME>investorpresentationq423030.jpg
    <TEXT>
    Document 38 - file: investorpresentationq423030.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>39
    <FILENAME>investorpresentationq423031.jpg
    <TEXT>
    Document 39 - file: investorpresentationq423031.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>40
    <FILENAME>investorpresentationq423032.jpg
    <TEXT>
    Document 40 - file: investorpresentationq423032.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>41
    <FILENAME>investorpresentationq423033.jpg
    <TEXT>
    Document 41 - file: investorpresentationq423033.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>42
    <FILENAME>investorpresentationq423034.jpg
    <TEXT>
    Document 42 - file: investorpresentationq423034.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>43
    <FILENAME>investorpresentationq423035.jpg
    <TEXT>
    Document 43 - file: investorpresentationq423035.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>44
    <FILENAME>investorpresentationq423036.jpg
    <TEXT>
    Document 44 - file: investorpresentationq423036.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>45
    <FILENAME>investorpresentationq423037.jpg
    <TEXT>
    Document 45 - file: investorpresentationq423037.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>46
    <FILENAME>investorpresentationq423038.jpg
    <TEXT>
    Document 46 - file: investorpresentationq423038.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>47
    <FILENAME>investorpresentationq423039.jpg
    <TEXT>
    Document 47 - file: investorpresentationq423039.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>48
    <FILENAME>investorpresentationq423040.jpg
    <TEXT>
    Document 48 - file: investorpresentationq423040.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>49
    <FILENAME>investorpresentationq423041.jpg
    <TEXT>
    Document 49 - file: investorpresentationq423041.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>50
    <FILENAME>investorpresentationq423042.jpg
    <TEXT>
    Document 50 - file: investorpresentationq423042.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>51
    <FILENAME>investorpresentationq423043.jpg
    <TEXT>
    Document 51 - file: investorpresentationq423043.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>52
    <FILENAME>investorpresentationq423044.jpg
    <TEXT>
    Document 52 - file: investorpresentationq423044.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>53
    <FILENAME>investorpresentationq423045.jpg
    <TEXT>
    Document 53 - file: investorpresentationq423045.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>54
    <FILENAME>investorpresentationq423046.jpg
    <TEXT>
    Document 54 - file: investorpresentationq423046.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>55
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 55 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EXCEL
    <SEQUENCE>57
    <FILENAME>Financial_Report.xlsx
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 57 - file: Financial_Report.xlsx

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>58
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 58 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>59
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 59 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>61
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 61 - file: FilingSummary.html

    Document 61 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>63
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 63 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>64
    <FILENAME>0001046025-24-000002-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 64 - file: 0001046025-24-000002-xbrl.zip

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>65
    <FILENAME>hfwa-20240125_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 65 - file: hfwa-20240125_htm.html

    Document 65 - RAW XML: hfwa-20240125_htm.xml

    </DOCUMENT>
    </SEC-DOCUMENT>