| In millions, except per share items | Jun-30-23 | Mar-31-23 | Dec-31-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Jun-30-21 |
| | 10-Q | 10-Q | 8-K | 10-Q | 10-Q | 10-K | 10-Q | 10-Q |
| Revenues | | | | 235.5 | 181.5 | 147.2 | 127.0 | 123.2 |
| Revenues growth | | | | 91.1% | | | | |
| Cost of sales | | | | 240.2 | 192.0 | 148.2 | 124.4 | 119.7 |
| Gross profit (loss) | | | | -4.7 | -10.4 | -0.9 | 2.7 | 3.6 |
| Gross margin | | | | -2.0% | -5.8% | -0.6% | 2.1% | 2.9% |
| |
| Operating expenses: | | | | | | | | |
| Research and development | | | | 48.9 | 45.7 | 40.6 | 34.3 | 30.6 |
| Selling, general and administrative expenses | | | | 92.6 | 90.9 | 84.4 | 73.2 | 54.3 |
| Total operating expenses | | | | 141.5 | 161.2 | 149.5 | 136.9 | 114.3 |
| Loss from operations | | | | -146.2 | -144.3 | -123.1 | -106.9 | -83.4 |
| Operating margin | | | | -62.1% | -79.5% | -83.6% | -84.1% | -67.7% |
| |
| Other (income) expense: | | | | | | | | |
| Interest expense, net | | | | 11.8 | 9.6 | 4.5 | 5.7 | 6.8 |
| Changes in fair value of warrants and conversion option | | | | -52.5 | -44.9 | -12.1 | -12.6 | 2.5 |
| Other expense, net | | | | 1.5 | 0.4 | -1.2 | -2.6 | -0.6 |
| Total other (income) expense, net | | | | -25.0 | -20.7 | 5.4 | 2.3 | 8.7 |
| Net loss from continuing operations before income taxes | | | | -118.8 | -121.1 | -126.0 | -109.2 | -92.0 |
| Income tax expense (benefit) | | | | 0.2 | 0.2 | 0.2 | 0.2 | |
| Net loss from continuing operations, net of income taxes | | | | -42.5 | -17.4 | | | |
| Net loss from discontinued operations, net of income taxes | | | | -1.6 | 0.8 | | | |
| Net loss attributable to common stockholders | | | | -120.6 | -120.5 | -126.2 | -109.4 | -92.1 |
| |
| Net loss per common share: | | | | | | | | |
| Basic net loss per common share from continuing operations (in usd per share) | | | | 0.0 | 0.0 | | | |
| Diluted net loss per common share from continuing operations (in usd per share) | | | | 0.0 | 0.0 | | | |
| Basic net loss per common share from discontinued operations (in usd per share) | | | | 0.0 | 0.0 | | | |
| Diluted net loss per common share from discontinued operations | | | | 0.0 | 0.0 | | | |
| |
| Basic total net loss per common share (in usd per share) | | | | ($0.87) | ($0.97) | ($1.08) | ($1.05) | ($0.95) |
| Diluted total net loss per common share (in usd per share) | | | | ($0.87) | ($0.97) | ($1.08) | ($1.05) | ($0.95) |
| |
| Weighted average shares outstanding: | | | | | | | | |
| Basic weighted average shares outstanding (in shares) | | | | 146.7 | 127.6 | 114.6 | 105.0 | 98.0 |
| Diluted weighted average shares outstanding (in shares) | | | | 146.7 | 127.6 | 114.6 | 105.0 | 98.0 |