| In millions, except per share items | Jun-30-23 | Mar-31-23 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Jun-30-21 |
| | 10-Q | 10-Q | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q |
| Net income | | | -45.7 | -42.0 | -41.2 | -36.8 | -32.6 | -28.2 |
| Depreciation and amortization | | | 0.8 | 0.8 | 0.7 | 0.7 | 0.4 | 0.4 |
| Stock-based compensation | | | | | | -4.8 | | |
| Change in working capital [+] | | | 1.6 | -0.3 | 4.5 | 0.7 | 2.3 | -2.3 |
| Other current assets | | | | | | 0.1 | | |
| Other | | | 1.5 | -0.5 | 4.3 | 0.6 | 1.9 | -3.1 |
| Other operating activities | | | 10.8 | 10.3 | 10.6 | 9.9 | 5.9 | 5.3 |
| Cash from operations | | | -37.3 | -36.1 | -30.2 | -30.3 | -25.1 | -25.3 |
| |
| Capital expenditures | | | 3.8 | 4.0 | 4.5 | 5.0 | 3.6 | 2.4 |
| Purchases of property and equipment | | | 3.8 | 4.0 | 4.5 | 5.0 | 3.6 | 2.4 |
| Purchases of short-term investments, net | | | 518.6 | 508.0 | 566.9 | 551.0 | 188.8 | 147.1 |
| Purchases of short-term investments | | | 422.5 | 427.4 | 539.3 | 531.3 | 173.8 | 147.1 |
| Sales of short-term investments | | | 96.1 | 80.6 | 27.6 | 19.7 | 15.0 | |
| Other cash from investing | | | -482.9 | -481.5 | -701.9 | -699.2 | -341.4 | -298.9 |
| Cash from investing | | | 39.5 | 30.5 | -130.4 | -143.1 | -149.0 | -149.4 |
| |
| Other cash from financing | | | -0.3 | 0.1 | 0.0 | 163.9 | 179.9 | 188.4 |
| Cash from financing | | | -0.3 | 0.1 | 0.0 | 163.9 | 179.9 | 188.4 |
| |
| Free cash flow | | | -33.5 | -32.1 | -25.7 | -25.3 | -21.5 | -22.9 |
| Per share (diluted) | | | ($1.12) | ($1.07) | ($0.86) | ($0.94) | ($1.05) | ($1.73) |