| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 |
| | 8-K | 10-K | 10-K |
| Net income | -111.3 | -338.1 | -14.0 |
| Depreciation and amortization | 13.3 | 5.8 | 4.8 |
| Stock-based compensation | | 100.6 | 2.5 |
| Deferred taxes | 0.1 | -0.4 | |
| Change in working capital [+] | -14.0 | -5.6 | -1.4 |
| Accounts receivable | -9.6 | -7.2 | -3.3 |
| Inventories | -6.5 | -1.9 | -1.7 |
| Other current assets | 0.1 | -7.8 | -1.1 |
| Accounts payable | -5.2 | 8.8 | 0.6 |
| Accrued expenses | | 2.4 | 4.1 |
| Other | 7.3 | | |
| Other operating activities | -6.6 | 198.8 | 4.5 |
| Cash from operations | -118.6 | -38.8 | -3.6 |
| |
| Capital expenditures [+] | -1.7 | -8.0 | -4.9 |
| Purchases of property and equipment | -1.7 | -0.8 | 0.0 |
| Capitalized product costs | | -7.2 | -4.9 |
| Acquisitions | -51.9 | | |
| Purchases of short-term investments, net | 161.4 | -532.6 | |
| Purchases of short-term investments | -137.6 | -532.6 | |
| Sales of short-term investments | 299.0 | | |
| Other cash from investing | -12.6 | -1.3 | |
| Cash from investing | 95.2 | -541.8 | -4.9 |
| |
| Repurchase of common stock, net | | | -0.4 |
| Option exercises | 27.8 | 2.1 | 1.5 |
| Other cash from financing | 28.1 | 670.5 | 52.4 |
| Cash from financing | 0.3 | 668.4 | 50.5 |
| |
| Free cash flow | -120.3 | -39.6 | -3.6 |
| Per share (diluted) | ($0.42) | ($0.36) | ($0.26) |
| |
| Cash paid for interest | | 0.8 | 1.1 |
| Cash paid for income taxes | | 0.1 | 0.1 |