| In millions, except per share items | Jun-30-23 | Jun-05-23 | Mar-31-23 | Mar-05-23 | Dec-31-22 | Dec-05-22 | Sep-30-22 | Jun-30-22 |
| | 10-Q | 8-K | 10-Q | 8-K | 10-K | 8-K | 10-Q | 10-Q |
| Net income | -12.3 | 0.0 | -17.4 | -17.4 | -7.9 | -7.9 | -47.6 | -50.9 |
| Depreciation and amortization [+] | 0.7 | | 0.6 | | 0.7 | | 0.7 | 0.7 |
| Depreciation | 0.7 | | 0.6 | | 0.7 | | 0.7 | 0.7 |
| Change in working capital | | | | | 34.3 | | | |
| Other | | | | | 34.3 | | | |
| Other operating activities | -16.2 | | -12.7 | | -39.3 | | 29.0 | 23.9 |
| Cash from operations | -27.8 | | -29.5 | | -12.1 | | -17.9 | -26.4 |
| |
| Capital expenditures | 0.0 | | 0.5 | | 0.5 | | 4.5 | 1.2 |
| Purchases of property and equipment | 0.0 | | 0.5 | | 0.5 | | 4.5 | 1.2 |
| Purchases of short-term investments | 75.7 | | 38.8 | | 41.1 | | 20.3 | 21.2 |
| Purchases of short-term investments | 75.7 | | 38.8 | | 41.1 | | 20.3 | 21.2 |
| Other cash from investing | -102.4 | | -48.7 | | -43.1 | | 22.6 | -2.7 |
| Cash from investing | -26.7 | | -9.3 | | -1.6 | | 47.4 | 19.6 |
| |
| Option exercises | 0.2 | | 0.0 | | 0.1 | | 0.0 | 0.1 |
| Other cash from financing | 31.1 | | 31.5 | | -0.7 | | 0.0 | 0.3 |
| Cash from financing | 30.9 | | 31.5 | | -0.8 | | 0.0 | 0.1 |
| |
| Free cash flow | -27.9 | | -29.0 | | -11.6 | | -13.5 | -25.2 |
| Per share (diluted) | ($0.15) | | ($0.20) | | ($0.09) | | ($0.11) | ($0.20) |
| |
| Cash paid for interest | 0.8 | | 0.8 | | 0.8 | | 0.7 | 0.6 |