Business Combinations, Acquisitions, and Business Disposals - Schedule of Business Acquisition, Pro Forma Information (Details) - Certrec Corporation - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended |
|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2025 |
|
| Business Combination [Line Items] | ||
| Total revenues | $ 255.7 | $ 745.2 |
| Net loss | (3.7) | (2.7) |
| Net loss attributable to Mirion Technologies, Inc. stockholders | $ (3.9) | $ (3.2) |
| X | ||||||||||
- Definition Business acquisitions pro forma revenue profit loss. No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount, after tax, of pro forma income (loss) of combined entity as if acquisition date of business combination occurred as of beginning of period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of pro forma revenue of combined entity as if acquisition date of business combination occurred as of beginning of period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Details
|