| 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 | -85.2 | | -123.8 | | -150.7 | | -179.1 | -168.0 |
| Depreciation and amortization [+] | 2.7 | | 2.7 | | 2.7 | | 2.7 | 2.7 |
| Depreciation | 2.7 | | 2.7 | | 2.7 | | 2.7 | 2.7 |
| Change in working capital | | | | | 34.3 | | | |
| Other | | | | | 34.3 | | | |
| Other operating activities | -39.2 | | 0.9 | | 37.6 | | 19.4 | 9.8 |
| Cash from operations | -87.4 | | -85.9 | | -76.0 | | -97.3 | -95.8 |
| |
| Capital expenditures | 5.4 | | 6.6 | | 6.5 | | 6.4 | 3.0 |
| Purchases of property and equipment | 5.4 | | 6.6 | | 6.5 | | 6.4 | 3.0 |
| Purchases of short-term investments | 175.9 | | 121.4 | | 112.3 | | 92.8 | 147.8 |
| Purchases of short-term investments | 175.9 | | 121.4 | | 112.3 | | 92.8 | 147.8 |
| Other cash from investing | -171.6 | | -72.0 | | -28.2 | | 7.7 | -104.0 |
| Cash from investing | 9.8 | | 56.1 | | 90.6 | | 106.9 | 46.8 |
| |
| Option exercises | 0.3 | | 0.3 | | 0.2 | | 0.7 | 0.6 |
| Other cash from financing | 61.9 | | 31.1 | | -0.5 | | 0.9 | 5.0 |
| Cash from financing | 61.6 | | 30.8 | | -0.7 | | 0.3 | 4.3 |
| |
| Free cash flow | -81.9 | | -79.3 | | -69.5 | | -90.9 | -92.8 |
| Per share (diluted) | ($0.56) | | ($0.60) | | ($0.54) | | ($0.72) | ($0.73) |
| |
| Cash paid for interest | 3.1 | | 2.9 | | 2.6 | | 2.4 | 2.3 |