| 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 | -66.1 | -71.6 | -118.8 | -78.7 | -33.3 | -52.4 | -53.9 | -29.8 |
| Depreciation and amortization [+] | 17.5 | 18.2 | 16.3 | 14.4 | 13.4 | 13.3 | 13.4 | 13.4 |
| Depreciation | 17.5 | 18.2 | 16.3 | 14.4 | 13.4 | 13.3 | 13.4 | 13.4 |
| Asset impairment charges | | | 44.8 | | | | | |
| Stock-based compensation | 28.1 | 27.7 | 32.2 | 25.5 | 16.0 | 21.0 | 19.1 | 17.2 |
| Change in working capital [+] | -38.5 | -265.0 | 35.5 | -69.1 | 44.4 | -31.7 | 82.8 | -36.1 |
| Accounts receivable | -21.1 | -78.9 | 32.0 | -23.0 | -25.7 | -7.4 | 48.9 | -7.1 |
| Inventories | -69.7 | -127.7 | -23.3 | -39.5 | 39.1 | -18.9 | -10.2 | -10.8 |
| Other current assets | 6.5 | -4.5 | 0.5 | -6.3 | 1.3 | -7.4 | 2.3 | 3.9 |
| Accounts payable | 62.7 | -26.8 | 34.7 | 15.9 | -24.8 | 8.5 | 15.3 | 14.1 |
| Other | -16.9 | -27.1 | -8.4 | -16.1 | 54.6 | -6.5 | 26.6 | -36.2 |
| Other operating activities | 12.4 | -24.1 | -16.1 | 15.4 | 6.8 | -22.7 | -7.7 | -53.8 |
| Cash from operations | -46.5 | -314.7 | -6.1 | -92.4 | 47.2 | -72.6 | 53.7 | -89.0 |
| |
| Capital expenditures [+] | -19.6 | -26.6 | -26.2 | -18.5 | -5.2 | -10.2 | -21.5 | -12.9 |
| Purchases of property and equipment | -19.6 | -26.6 | -26.2 | -18.5 | -5.2 | -10.2 | -21.5 | -12.9 |
| Sales of property and equipment | 0.0 | | | | | | | |
| Other cash from investing | | | | | | 3.1 | | |
| Cash from investing | -19.6 | -26.6 | -26.2 | -18.5 | -5.2 | -7.1 | -21.5 | -12.9 |
| |
| Issuance of common stock, net | 0.7 | 8.5 | -1.0 | 7.0 | 17.7 | 6.4 | 7.7 | 58.0 |
| Option exercises | | | 1.3 | | | | | |
| Financing costs | -15.8 | | | | -2.0 | | | |
| Other cash from financing | 488.8 | 298.0 | -44.5 | -17.1 | 233.6 | -7.1 | -5.1 | -6.8 |
| Cash from financing | 505.3 | 306.5 | -46.8 | -10.1 | 253.2 | -0.7 | 2.7 | 51.2 |
| |
| Free cash flow | -66.1 | -341.3 | -32.3 | -111.0 | 42.0 | -82.8 | 32.2 | -102.0 |
| Per share (diluted) | ($0.32) | ($1.65) | ($0.18) | ($0.63) | $0.24 | ($0.47) | $0.19 | ($0.60) |
| |
| Cash paid for interest | 8.9 | 13.4 | 11.5 | 14.4 | 26.1 | 15.4 | 12.3 | 15.0 |