| In millions, except per share items | Jun-30-23 | Jun-05-23 | Dec-05-22 | Jun-30-22 | Jun-05-22 | Mar-31-22 | Mar-05-22 | Dec-31-21 |
| | 10-Q | 8-K | 8-K | 10-Q | 8-K | 10-Q | 8-K | 10-K |
| Net income | 3.4 | 3.4 | 67.7 | 128.8 | 128.8 | 32.9 | 32.9 | 99.8 |
| Depreciation and amortization [+] | | | | 1.1 | | 1.0 | | 4.3 |
| Depreciation | | | | 1.1 | | 1.0 | | 4.3 |
| Change in working capital [+] | | | | -141.5 | | -81.4 | | 155.4 |
| Accounts receivable | | | | -37.3 | | -5.1 | | -109.2 |
| Accrued expenses | | | | 17.0 | | -39.6 | | |
| Deferred revenues | | | | -121.2 | | -36.7 | | |
| Other | | | | | | | | 264.5 |
| Other operating activities | -3.4 | | | 28.3 | | -2.9 | | 76.1 |
| Cash from operations | 0.0 | | | 16.7 | | -50.4 | | 335.5 |
| |
| Capital expenditures [+] | 0.0 | | | 2.9 | | 1.4 | | 9.5 |
| Purchases of property and equipment | | | | 2.9 | | 1.4 | | 9.5 |
| Sales of property and equipment | | | | 1.0 | | | | |
| Purchases of short-term investments, net | | | | 181.0 | | 285.6 | | |
| Purchases of short-term investments | | | | 63.3 | | 250.4 | | |
| Sales of short-term investments | | | | 117.7 | | 35.3 | | |
| Other cash from investing | | | | -132.4 | | -503.5 | | 4.7 |
| Cash from investing | 0.0 | | | 52.5 | | -216.5 | | 14.2 |
| |
| Issuance of common stock, net | | | | | | | | 28.2 |
| Option exercises | | | | | | 0.7 | | |
| Other cash from financing | | | | 1.0 | | 11.0 | | 27.6 |
| Cash from financing | 0.0 | | | 1.0 | | 10.3 | | 55.8 |
| |
| Free cash flow | 0.0 | | | 19.6 | | -49.1 | | 345.0 |
| Per share (diluted) | $0.00 | | | $0.13 | | ($0.33) | | $2.59 |
| |
| Cash paid for interest | | | | 2.8 | | | | |