| In millions, except per share items | Jun-30-23 | Mar-31-23 | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 |
| | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q |
| Net income | -120.5 | -85.4 | -43.0 | 175.5 | 175.5 | 175.5 | 119.9 | 53.6 |
| Depreciation and amortization | 6.1 | 6.5 | 7.1 | 6.7 | 5.6 | 4.1 | 2.3 | 1.5 |
| Change in working capital [+] | -5.5 | -5.1 | 1.2 | -4.7 | 7.6 | 21.2 | 13.6 | 15.5 |
| Accrued expenses | -5.5 | -5.1 | 1.2 | -4.7 | 7.6 | 11.6 | 13.6 | 15.5 |
| Other operating activities | -15.6 | -51.8 | -245.2 | -476.1 | -507.6 | -524.3 | -343.7 | -247.5 |
| Cash from operations | -135.6 | -135.8 | -280.0 | -298.6 | -318.9 | -335.9 | -207.9 | -176.9 |
| |
| Capital expenditures | 3.2 | 6.0 | 8.3 | 23.5 | 31.6 | 36.7 | 33.2 | 18.4 |
| Purchases of property and equipment | 3.2 | 6.0 | 8.3 | 23.5 | 31.6 | 36.7 | 33.2 | 18.4 |
| Purchases of short-term investments | 321.2 | 257.6 | 228.1 | 271.6 | | 402.3 | 387.5 | 527.8 |
| Purchases of short-term investments | 321.2 | 257.6 | 228.1 | 271.6 | | 582.3 | 387.5 | 527.8 |
| Other cash from investing | -346.7 | -214.0 | -164.8 | -209.0 | -32.2 | -242.7 | -277.5 | -483.4 |
| Cash from investing | -22.4 | 49.6 | 71.7 | 86.1 | 191.5 | 196.4 | 143.2 | 62.8 |
| |
| Issuance of common stock, net | | 141.6 | | 140.6 | | | | |
| Option exercises | | 1.0 | 0.9 | 1.5 | 4.3 | 5.1 | 8.5 | 10.8 |
| Other cash from financing | | 2.4 | 2.1 | 3.5 | 9.4 | 10.9 | 18.8 | 23.3 |
| Cash from financing | 142.9 | 143.0 | 141.9 | 142.6 | 5.1 | 5.8 | 10.3 | 284.2 |
| |
| Free cash flow | -132.5 | -129.8 | -271.6 | -275.1 | -287.3 | -299.2 | -174.6 | -158.5 |
| Per share (diluted) | ($1.80) | ($1.98) | ($4.70) | ($4.97) | ($5.29) | ($5.53) | ($3.25) | ($3.01) |
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