In millions, except per share items | Mar-31-23 | Jun-30-22 | Mar-31-22 | Oct-19-21 | Sep-30-21 | Jun-30-21 | Mar-31-21 | Dec-31-20 |
| 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K/A |
Revenues: | | | | | | | | |
Total revenues | | | | | | 346.2 | 166.2 | |
Cost of revenues: | | | | | | | | |
Gross profit | | | | | | 142.1 | 62.5 | |
Gross margin | | | | | | 41.0% | 37.6% | |
|
Operating expenses: | | | | | | | | |
Selling, general and administrative | | | | | | 127.1 | 60.4 | |
Research and development | | | | | | 19.2 | 11.0 | |
Total operating expenses | | | | | | 149.8 | 74.9 | 3.5 |
Loss from operations | | | | | | -4.2 | -8.9 | |
Operating margin | | | | | | -1.2% | -5.4% | |
|
Other expense (income): | | | | | | | | |
Foreign currency (gain) loss, net | | | | | | -2.9 | -4.0 | |
Increase (decrease) in fair value of warrant liabilities | | | | | | | | -73.9 |
Other income, net | | | | | | 0.7 | 0.2 | |
Loss before income taxes | | | | | | -164.7 | -125.2 | -77.4 |
Benefit from income taxes | | | | | | 7.0 | -7.4 | -0.3 |
Net loss | | | | | | -94.7 | -40.7 | |
Loss attributable to noncontrolling interests | | | | | | -0.1 | | |
Net loss attributable to Mirion Technologies, Inc. | | | | | | -94.6 | -40.7 | |
|
Net loss per common share attributable to Mirion Technologies, Inc. stockholders — basic | | | | | | ($14.32) | ($6.18) | |
Net loss per common share attributable to Mirion Technologies, Inc. stockholders — diluted | | | | | | ($14.32) | ($6.18) | |
|
Weighted average common shares outstanding — basic (in shares) | | | | | | 40.7 | 44.1 | 47.5 |
Weighted average common shares outstanding — diluted (in shares) | | | | | | 3.3 | 1.6 | |