Mirion Technologies, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Loss Per Share - Narrative (Details)

Loss Per Share - Narrative (Details)			3 Months Ended		9 Months Ended
Loss Per Share - Narrative (Details)	Oct. 20, 2021 vote shares	Jun. 17, 2021	Sep. 30, 2024 shares	Sep. 30, 2023 $ / shares shares	Sep. 30, 2024 vote tranche $ / shares shares	Sep. 30, 2023 $ / shares shares	Jun. 04, 2024 shares	Apr. 18, 2024 $ / shares shares	Dec. 31, 2023 shares	Oct. 19, 2021 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period					5 years
Number of tranches \| tranche					3
Common stock, shares outstanding (in shares)			18,750,000		18,750,000
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of trading days for determining the value per share	20 days	20 days			20 days
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of trading days for determining the value per share	30 days	30 days			30 days
Share-based Payment Arrangement, Tranche 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant-date fair value, granted ( in dollars per share) \| $ / shares					$ 12.00
Share-based Payment Arrangement, Tranche 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant-date fair value, granted ( in dollars per share) \| $ / shares					14.00
Share-based Payment Arrangement, Tranche 3
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant-date fair value, granted ( in dollars per share) \| $ / shares					$ 16.00
Public warrants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of securities called by each warrant or right (in shares)								0.22
Warrant exercise price (in dollars per share) \| $ / shares								$ 11.50
Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, number of votes per common share \| vote					1
Common stock, convertible, conversion r.atio	1
Class of warrant or right outstanding (in shares)			0	27,249,779	0	27,249,779	1,768,000	18,076,416
Number of securities called by each warrant or right (in shares)				1		1
Warrant exercise price (in dollars per share) \| $ / shares				$ 11.50		$ 11.50
Common stock, shares outstanding (in shares)	18,750,000		225,468,851		225,468,851				218,177,832	9,976,164
Class A Common Stock \| Public warrants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Class of warrant or right outstanding (in shares)			0	18,749,779	0	18,749,779		3,978,418
Class A Common Stock \| Private placement warrants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Class of warrant or right outstanding (in shares)			0	8,500,000	0	8,500,000	8,500,000
Class B Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, number of votes per common share \| vote	1				1
Common stock, convertible, conversion r.atio	1		1		1
Common stock, shares outstanding (in shares)	18,750,000		6,790,790		6,790,790				7,787,333
Share-based awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)			2,826,000	644,000	2,771,000	650,000