| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 |
| | 10-K | 10-K | 10-K | 10-K |
| Net income | -80.9 | -122.7 | -25.4 | -31.9 |
| Depreciation and amortization | 37.1 | 22.2 | 12.6 | 4.1 |
| Stock-based compensation | 19.0 | 23.1 | 0.7 | 0.3 |
| Deferred taxes | -5.8 | -3.6 | -1.3 | -1.1 |
| Change in working capital [+] | -30.4 | -31.7 | 1.5 | -11.4 |
| Accounts receivable | -6.5 | -1.3 | -6.0 | -0.2 |
| Inventories | -43.8 | -41.4 | -11.9 | -15.8 |
| Other current assets | 8.1 | -14.4 | -2.8 | -3.7 |
| Other | 11.8 | 25.4 | 22.2 | 8.2 |
| Other operating activities | 22.6 | 71.0 | 6.0 | -0.9 |
| Cash from operations | -38.4 | -41.7 | -6.0 | -40.9 |
| |
| Capital expenditures [+] | -81.6 | -88.4 | -26.4 | -41.7 |
| Purchases of property and equipment | -81.6 | -88.4 | -26.4 | -41.7 |
| Sales of property and equipment | 39.2 | 0.9 | 26.8 | 13.8 |
| Purchases of intangible assets | -44.3 | | -0.1 | -19.7 |
| Acquisitions | -25.1 | -23.1 | -26.0 | -8.7 |
| Other cash from investing | -2.4 | -2.6 | -5.0 | -9.2 |
| Cash from investing | -114.3 | -113.2 | -30.9 | -65.6 |
| |
| Issuance of common stock, net | | 86.1 | | 38.5 |
| Financing costs | -5.0 | -8.8 | -3.4 | |
| Other cash from financing | 66.3 | 157.5 | 78.8 | 72.6 |
| Cash from financing | 71.3 | 252.4 | 82.2 | 111.1 |
| |
| Free cash flow | -120.0 | -130.2 | -32.4 | -82.6 |
| Per share (diluted) | ($0.65) | ($0.87) | ($0.34) | ($0.95) |
| |
| Cash paid for interest | 23.6 | 20.5 | 6.2 | 3.2 |