<SEC-DOCUMENT>0000950170-23-067359-index.html : 20231201
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<ACCEPTANCE-DATETIME>20231201163010
ACCESSION NUMBER:		0000950170-23-067359
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		12
CONFORMED PERIOD OF REPORT:	20231129
ITEM INFORMATION:		Other Events
FILED AS OF DATE:		20231201
DATE AS OF CHANGE:		20231201

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AVISTA CORP
		CENTRAL INDEX KEY:			0000104918
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
		IRS NUMBER:				910462470
		STATE OF INCORPORATION:			WA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-03701
		FILM NUMBER:		231459956

	BUSINESS ADDRESS:	
		STREET 1:		1411 E MISSION AVE
		CITY:			SPOKANE
		STATE:			WA
		ZIP:			99202
		BUSINESS PHONE:		5094890500

	MAIL ADDRESS:	
		STREET 1:		1411 EAST MISSION
		CITY:			SPOKANE
		STATE:			WA
		ZIP:			99202

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WASHINGTON WATER POWER CO
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
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<FILENAME>ava-20231129.htm
<DESCRIPTION>8-K
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Document 1 - file: ava-20231129.htm
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</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>9 <FILENAME>report.css <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 9 - file: report.css
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>10 <FILENAME>FilingSummary.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 10 - file: FilingSummary.html
Document 10 - RAW XML: FilingSummary.xml
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</DOCUMENT> <DOCUMENT> <TYPE>ZIP <SEQUENCE>14 <FILENAME>0000950170-23-067359-xbrl.zip <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 14 - file: 0000950170-23-067359-xbrl.zip
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