Quarterly report pursuant to Section 13 or 15(d)

Loss Per Share - Reconciliation of Numerator and Denominator (Details)

v3.23.2
Loss Per Share - Reconciliation of Numerator and Denominator (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Net loss attributable to Mirion Technologies, Inc. shareholders $ (27.7) $ (58.6) $ (69.6) $ (76.3)
Weighted average common shares outstanding — basic (in shares) 199,181 180,992 193,439 180,884
Weighted average common shares outstanding — diluted (in shares) 199,181 180,992 193,439 180,884
Net loss per common share attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders — basic (in dollars per share) $ (0.14) $ (0.32) $ (0.36) $ (0.42)
Net loss per common share attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders — diluted (in dollars per share) $ (0.14) $ (0.32) $ (0.36) $ (0.42)
Share-based awards        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Anti-dilutive employee share-based awards, excluded 642 933 653 938