| In millions, except per share items | Jun-30-23 | Mar-31-23 | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 |
| | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q |
| Revenue | 114.4 | 102.7 | 101.3 | 85.5 | 80.6 | 81.3 | 74.0 | 45.6 |
| Revenue growth | 41.8% | 26.4% | 36.9% | 87.6% | 129.1% | 239.7% | 219.3% | |
| Cost of revenue | 185.8 | 183.6 | 186.0 | 186.1 | 188.8 | 149.3 | 108.9 | 51.8 |
| Gross loss | -13.8 | | | | -23.2 | | | |
| Gross margin | -12.0% | | | | -28.8% | | | |
| |
| Operating expenses: | | | | | | | | |
| Research and development | 52.4 | 63.6 | 70.3 | 75.7 | 96.5 | 96.6 | 93.5 | 73.9 |
| Selling, general, and administrative | 124.9 | 142.1 | 159.7 | 161.6 | 158.6 | 152.5 | 131.2 | 94.8 |
| |
| Impairment of note receivable | | | | | | | | |
| Restructuring costs (Note 11) | 5.5 | 4.2 | | | | | | |
| Total operating expenses | 435.4 | 483.5 | 503.9 | 485.2 | 505.7 | 448.2 | 419.4 | 306.4 |
| Loss from operations | -286.6 | -319.2 | -340.9 | -338.1 | -363.4 | -366.9 | -345.4 | -260.8 |
| Operating margin | -250.5% | -310.9% | -336.5% | -395.3% | -450.7% | -451.6% | -466.7% | -572.2% |
| |
| Interest and other expense (income), net: | | | | | | | | |
| Interest expense, net | 9.8 | 5.9 | 2.9 | 0.3 | 0.5 | 7.8 | 12.9 | 12.9 |
| Other expense (income), net | 0.5 | 0.2 | 0.4 | 0.3 | 0.1 | 5.2 | 6.4 | 6.3 |
| Gain on fair value change, net | -1.5 | -3.4 | -7.3 | -12.4 | -25.2 | -23.3 | -26.4 | |
| Interest and other expense (income), net | 8.9 | 2.8 | -3.9 | -11.6 | -24.6 | -22.6 | -18.7 | -12.9 |
| Loss before provision for income taxes | -295.4 | -321.9 | -336.9 | -326.3 | -338.8 | -351.7 | -343.4 | -272.7 |
| Provision for income taxes | 0.1 | 0.1 | 0.1 | 0.1 | -0.3 | -0.4 | -0.4 | -0.4 |
| Net loss | -295.5 | -322.0 | -337.1 | -326.4 | -338.5 | -351.3 | -343.0 | -272.3 |
| Comprehensive loss | -295.5 | -322.0 | -337.1 | -326.4 | -338.5 | -351.3 | -343.0 | -263.9 |
| |
| Net loss per share, basic (in shares) | ($15.18) | ($24.28) | ($24.38) | ($24.30) | ($24.36) | ($1.60) | ($2.55) | ($2.84) |
| Net loss per share, diluted (in shares) | ($15.18) | ($24.28) | ($24.38) | ($24.30) | ($24.36) | ($1.60) | ($2.55) | ($2.84) |
| |
| Weighted-average shares used in calculation of net loss per share, diluted | 167.6 | 167.5 | 162.0 | 151.6 | 150.9 | 203.0 | 163.4 | 135.8 |
| Weighted-average shares used in calculation of net loss per share, basic | 167.6 | 167.5 | 162.0 | 151.6 | 150.9 | 203.0 | 163.4 | 135.8 |