| In millions, except per share items | Jun-30-23 | Jun-05-23 | Mar-31-23 | Dec-05-22 | Jun-30-22 | Jun-05-22 | Mar-31-22 | Dec-05-21 |
| | 10-Q | 8-K | 10-Q | 8-K | 10-Q | 8-K | 10-Q | 8-K |
| Net income | -27.9 | 0.0 | -26.9 | -21.2 | -53.9 | 0.0 | -67.9 | -37.3 |
| Depreciation and amortization [+] | 0.1 | | 0.0 | | | | | |
| Depreciation | 0.1 | | 0.0 | | | | | |
| Stock-based compensation | 3.2 | | 2.6 | | 0.6 | | 0.3 | |
| Change in working capital [+] | 0.4 | | 1.9 | | -3.7 | | 1.7 | |
| Other current assets | 0.3 | | 1.9 | | -4.4 | | -0.3 | |
| Other | 0.0 | | 0.0 | | 0.8 | | 2.1 | |
| Other operating activities | 1.8 | | 6.4 | | 43.8 | | 55.2 | |
| Cash from operations | -22.4 | | -16.0 | | -13.2 | | -10.7 | |
| |
| Capital expenditures | -4.8 | | -3.0 | | 0.0 | | 0.0 | |
| Purchases of property and equipment | -4.8 | | -3.0 | | | | | |
| Purchases of short-term investments | -85.1 | | | | | | | |
| Purchases of short-term investments | -85.1 | | | | | | | |
| Other cash from investing | | | | | | | -2.5 | |
| Cash from investing | -89.9 | | -3.0 | | 0.0 | | -2.5 | |
| |
| Issuance of common stock, net | | | | | 230.0 | | | |
| Option exercises | 0.1 | | 0.1 | | | | | |
| Other cash from financing | 10.3 | | 0.2 | | -11.8 | | -0.1 | |
| Cash from financing | 10.2 | | 0.1 | | 218.2 | | -0.1 | |
| |
| Free cash flow | -27.3 | | -18.9 | | -13.2 | | -10.7 | |
| Per share (diluted) | ($0.72) | | ($0.50) | | ($0.50) | | ($1.59) | |
| |
| Cash paid for interest | 0.3 | | 0.2 | | 0.0 | | | |