| In millions, except per share items | Dec-31-22 | Dec-05-22 | Dec-31-21 | Dec-05-21 | Dec-31-20 | Dec-31-19 |
| | 10-K | 8-K | 10-K | 8-K | 10-K | S-1/A |
| Net income | -101.1 | -101.1 | -70.8 | -70.8 | -68.4 | 0.0 |
| Depreciation and amortization [+] | 2.4 | | 0.7 | | 0.1 | |
| Depreciation | 2.4 | | 0.7 | | 0.1 | |
| Stock-based compensation | | | | | 0.2 | |
| Change in working capital [+] | 1.1 | | 2.2 | | -0.2 | 0.0 |
| Other current assets | | | | | -1.3 | |
| Accounts payable | | | | | 0.6 | 0.0 |
| Other | 1.1 | | 2.2 | | 0.5 | 0.0 |
| Other operating activities | 9.6 | | 15.0 | | 59.6 | 0.0 |
| Cash from operations | -88.0 | | -52.9 | | -8.7 | 0.0 |
| |
| Capital expenditures | 6.6 | | 5.7 | | -1.5 | 0.0 |
| Purchases of property and equipment | 6.6 | | 5.7 | | -1.5 | |
| Purchases of short-term investments | 405.5 | | | | | |
| Purchases of short-term investments | 405.5 | | | | | |
| Other cash from investing | -654.0 | | -11.5 | | | |
| Cash from investing | -241.9 | | -5.7 | | -1.5 | 0.0 |
| |
| Issuance of common stock, net | | | 251.3 | | | |
| Option exercises | 0.7 | | 0.3 | | | |
| Other cash from financing | 1.3 | | 166.5 | | 30.1 | |
| Cash from financing | 0.6 | | 417.5 | | 30.1 | 0.0 |
| |
| Free cash flow | -81.4 | | -47.1 | | -10.3 | 0.0 |
| Per share (diluted) | ($1.48) | | ($1.63) | | ($4.49) | |