    <SEC-DOCUMENT>0001395942-23-000043-index.html : 20230502
    <SEC-HEADER>0001395942-23-000043.hdr.sgml : 20230502
    <ACCEPTANCE-DATETIME>20230502161600
    ACCESSION NUMBER:		0001395942-23-000043
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		34
    CONFORMED PERIOD OF REPORT:	20230502
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20230502
    DATE AS OF CHANGE:		20230502

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			KAR Auction Services, Inc.
    		CENTRAL INDEX KEY:			0001395942
    		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-AUTO DEALERS & GASOLINE STATIONS [5500]
    		IRS NUMBER:				208744739
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-34568
    		FILM NUMBER:		23879239

    	BUSINESS ADDRESS:
    		STREET 1:		11299 N. ILLINOIS STREET
    		CITY:			CARMEL
    		STATE:			IN
    		ZIP:			46032
    		BUSINESS PHONE:		(800) 923-3725

    	MAIL ADDRESS:
    		STREET 1:		11299 N. ILLINOIS STREET
    		CITY:			CARMEL
    		STATE:			IN
    		ZIP:			46032

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	KAR Holdings, Inc.
    		DATE OF NAME CHANGE:	20070409
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>kar-20230502.htm
    <DESCRIPTION>FORM 8-K - EARNINGS MATERIALS & REBRAND ANNOUNCEMENT
    <TEXT>
    Document 1 - file: kar-20230502.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>exhibit991-q12023earningsr.htm
    <DESCRIPTION>EXHIBIT 99.1 - EARNINGS RELEASE
    <TEXT>
    Document 2 - file: exhibit991-q12023earningsr.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>exhibit992-q12023ersupplem.htm
    <DESCRIPTION>EXHIBIT 99.2 - EARNINGS RELEASE SUPPLEMENT
    <TEXT>
    Document 3 - file: exhibit992-q12023ersupplem.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.3
    <SEQUENCE>4
    <FILENAME>earningsslidedeckq12023-.htm
    <DESCRIPTION>EXHIBIT 99.3 - EARNINGS SLIDES
    <TEXT>
    Document 4 - file: earningsslidedeckq12023-.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.4
    <SEQUENCE>5
    <FILENAME>exhibit994-rebrandpressrel.htm
    <DESCRIPTION>EXHIBIT 99.4 - REBRAND PRESS RELEASE
    <TEXT>
    Document 5 - file: exhibit994-rebrandpressrel.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>6
    <FILENAME>kar-20230502.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
    <TEXT>
    Document 6 - file: kar-20230502.xsd

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    Document 7 - file: kar-20230502_lab.xml

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    <TEXT>
    Document 8 - file: kar-20230502_pre.xml

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    <SEQUENCE>9
    <FILENAME>earningsslidedeckq12023-001.jpg
    <TEXT>
    Document 9 - file: earningsslidedeckq12023-001.jpg

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    <SEQUENCE>10
    <FILENAME>earningsslidedeckq12023-002.jpg
    <TEXT>
    Document 10 - file: earningsslidedeckq12023-002.jpg

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    <SEQUENCE>11
    <FILENAME>earningsslidedeckq12023-003.jpg
    <TEXT>
    Document 11 - file: earningsslidedeckq12023-003.jpg

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    <SEQUENCE>12
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    Document 12 - file: earningsslidedeckq12023-004.jpg

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    Document 13 - file: earningsslidedeckq12023-005.jpg

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    Document 14 - file: earningsslidedeckq12023-006.jpg

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    Document 15 - file: earningsslidedeckq12023-007.jpg

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    <SEQUENCE>16
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    Document 16 - file: earningsslidedeckq12023-008.jpg

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    Document 17 - file: earningsslidedeckq12023-009.jpg

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    Document 18 - file: earningsslidedeckq12023-010.jpg

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    <SEQUENCE>19
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    Document 19 - file: earningsslidedeckq12023-011.jpg

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    <TEXT>
    Document 20 - file: earningsslidedeckq12023-012.jpg

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    <SEQUENCE>21
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    Document 21 - file: earningsslidedeckq12023-013.jpg

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    <SEQUENCE>22
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    Document 22 - file: earningsslidedeckq12023-014.jpg

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    Document 23 - file: earningsslidedeckq12023-015.jpg

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    <SEQUENCE>24
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    Document 24 - file: image1a.jpg

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    <SEQUENCE>25
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    Document 25 - file: kar-20230502_g1.jpg

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    <SEQUENCE>26
    <FILENAME>openlane.jpg
    <TEXT>
    Document 26 - file: openlane.jpg

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    <SEQUENCE>27
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    <DESCRIPTION>IDEA: XBRL DOCUMENT
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    Document 27 - file: R1.htm

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    Document 28 - RAW XML: kar-20230502_htm.xml

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    <SEQUENCE>29
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    Document 29 - file: Financial_Report.xlsx

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    <SEQUENCE>30
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    Document 30 - file: Show.js

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    <SEQUENCE>32
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    Document 32 - file: FilingSummary.html

    Document 32 - RAW XML: FilingSummary.xml

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    <TYPE>JSON
    <SEQUENCE>34
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