    <SEC-DOCUMENT>0001628280-25-055826-index.html : 20251208
    <SEC-HEADER>0001628280-25-055826.hdr.sgml : 20251208
    <ACCEPTANCE-DATETIME>20251208161301
    ACCESSION NUMBER:		0001628280-25-055826
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		13
    CONFORMED PERIOD OF REPORT:	20251208
    ITEM INFORMATION:		Entry into a Material Definitive Agreement
    ITEM INFORMATION:		Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20251208
    DATE AS OF CHANGE:		20251208

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Mirion Technologies, Inc.
    		CENTRAL INDEX KEY:			0001809987
    		STANDARD INDUSTRIAL CLASSIFICATION:	MEASURING & CONTROLLING DEVICES, NEC [3829]
    		ORGANIZATION NAME:           	08 Industrial Applications and Services
    		EIN:				830974996
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-39352
    		FILM NUMBER:		251556239

    	BUSINESS ADDRESS:
    		STREET 1:		1218 MENLO DRIVE
    		CITY:			ATLANTA
    		STATE:			GA
    		ZIP:			30318
    		BUSINESS PHONE:		(770) 432-2744

    	MAIL ADDRESS:
    		STREET 1:		1218 MENLO DRIVE
    		CITY:			ATLANTA
    		STATE:			GA
    		ZIP:			30318

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	GS Acquisition Holdings Corp II
    		DATE OF NAME CHANGE:	20200417
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>mir-20251208.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: mir-20251208.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.1
    <SEQUENCE>2
    <FILENAME>exhibit101-amendmentno6toc.htm
    <DESCRIPTION>EX-10.1
    <TEXT>
    Document 2 - file: exhibit101-amendmentno6toc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>3
    <FILENAME>mir-20251208.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
    <TEXT>
    Document 3 - file: mir-20251208.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>4
    <FILENAME>mir-20251208_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
    <TEXT>
    Document 4 - file: mir-20251208_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>5
    <FILENAME>mir-20251208_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
    <TEXT>
    Document 5 - file: mir-20251208_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>7
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 7 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>8
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 8 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>9
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 9 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>11
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 11 - file: FilingSummary.html

    Document 11 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>13
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 13 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>14
    <FILENAME>0001628280-25-055826-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 14 - file: 0001628280-25-055826-xbrl.zip

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>15
    <FILENAME>mir-20251208_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 15 - file: mir-20251208_htm.html

    Document 15 - RAW XML: mir-20251208_htm.xml

    </DOCUMENT>
    </SEC-DOCUMENT>