| In millions, except per share items | Jun-30-23 | Mar-31-23 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Jun-30-21 | Mar-31-21 |
| | 10-Q | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q |
| Net income | | | -218.7 | -217.3 | -202.1 | -146.2 | -129.3 | -136.3 |
| Depreciation and amortization [+] | | | 11.5 | 11.4 | 11.3 | 11.2 | 11.4 | 11.9 |
| Depreciation | | | 11.5 | 11.4 | 11.3 | 11.2 | 11.4 | 11.9 |
| Stock-based compensation | | | 22.3 | 23.1 | 23.1 | 23.0 | 22.4 | 21.5 |
| Change in working capital [+] | | | 81.8 | 50.6 | 72.8 | 49.4 | 20.7 | 59.0 |
| Accounts receivable | | | 26.9 | -7.8 | 12.7 | 5.0 | -26.0 | 4.7 |
| Inventories | | | 0.4 | -0.5 | -6.4 | -5.6 | -6.5 | -6.2 |
| Other current assets | | | 9.6 | 7.7 | 0.0 | -1.1 | -3.4 | -0.6 |
| Accounts payable | | | -7.4 | -6.6 | 7.1 | 1.7 | 6.9 | 7.8 |
| Accrued expenses | | | -7.7 | -2.0 | -0.6 | 9.2 | 9.0 | 10.0 |
| Other | | | | | 60.0 | 40.2 | 40.7 | 43.2 |
| Other operating activities | | | -72.9 | -40.4 | -48.9 | -32.5 | -31.1 | -52.8 |
| Cash from operations | | | -176.0 | -172.5 | -143.8 | -95.1 | -105.9 | -96.8 |
| |
| Capital expenditures | | | -5.9 | -7.0 | -6.2 | -8.4 | -6.8 | -5.3 |
| Purchases of property and equipment | | | -5.9 | -7.0 | -6.2 | -8.4 | -6.8 | -5.3 |
| Purchases of short-term investments, net | | | -5.7 | -13.8 | -30.4 | -30.7 | -73.0 | -47.3 |
| Purchases of short-term investments | | | -189.1 | -191.4 | -231.2 | -237.3 | -269.1 | -256.4 |
| Sales of short-term investments | | | 183.4 | 177.6 | 200.8 | 206.6 | 196.0 | 209.1 |
| Cash from investing | | | -11.6 | -20.8 | -36.6 | -39.1 | -79.8 | -52.6 |
| |
| Issuance of common stock, net | | | | | | 117.9 | | 268.7 |
| Option exercises | | | 1.5 | | 5.8 | 6.2 | 7.5 | 7.6 |
| Other cash from financing | | | 1.8 | 5.8 | 10.7 | 11.4 | 13.5 | 13.7 |
| Cash from financing | | | 20.1 | 22.2 | 122.8 | 123.1 | 178.2 | 274.8 |
| |
| Free cash flow | | | -181.9 | -179.5 | -150.0 | -103.4 | -112.7 | -102.1 |
| Per share (diluted) | | | ($2.98) | ($2.96) | ($2.52) | ($1.79) | ($2.01) | ($1.91) |