| In millions, except per share items | Aug-31-23 | Nov-30-22 | Aug-31-22 | May-31-22 | Feb-28-22 | Nov-30-21 | Aug-31-21 | May-31-21 |
| | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K |
| Net income | -71.5 | -69.5 | -73.5 | -478.1 | 43.2 | -0.2 | -41.6 | 40.3 |
| Depreciation and amortization [+] | 30.8 | 33.3 | 34.1 | 40.8 | 37.0 | 37.5 | 39.3 | 24.5 |
| Depreciation | | -34.1 | | | | -39.3 | | |
| Amortization | | 67.4 | | | | 76.8 | | |
| Asset impairment charges | | | | 366.2 | | 12.0 | | |
| Stock-based compensation | 8.3 | 10.9 | 9.2 | 9.0 | 9.4 | 13.6 | 4.1 | 5.9 |
| Deferred taxes | 0.1 | -13.7 | 0.8 | -10.2 | -6.1 | 13.6 | -24.9 | 10.6 |
| Change in working capital [+] | 5.6 | 46.5 | -44.5 | 48.5 | -31.2 | -9.9 | -34.8 | 96.0 |
| Accounts receivable | 13.0 | 9.8 | -3.1 | 0.5 | -3.2 | 12.6 | -9.9 | 17.0 |
| Inventories | 3.7 | 5.3 | -0.2 | 16.5 | -19.9 | -1.5 | 4.9 | 15.8 |
| Other current assets | -4.7 | 27.1 | -34.9 | 1.0 | 5.3 | 1.0 | -7.3 | |
| Other | -6.5 | 4.3 | -6.3 | 30.6 | -13.4 | -21.9 | -22.6 | 63.1 |
| Other operating activities | 11.0 | 21.7 | 27.6 | 3.4 | -98.7 | -83.8 | -35.3 | -169.1 |
| Cash from operations | -15.8 | 29.2 | -46.3 | -20.5 | -46.4 | -17.1 | -93.2 | 8.2 |
| |
| Capital expenditures [+] | -4.2 | -4.5 | -3.0 | -5.6 | -4.6 | -7.5 | -16.3 | -4.9 |
| Purchases of property and equipment | -4.2 | -4.5 | -3.0 | -5.6 | -4.6 | -7.5 | -16.3 | -4.9 |
| Sales of property and equipment | 0.3 | 0.7 | 1.5 | 0.7 | 3.3 | 0.6 | 7.7 | 0.0 |
| Acquisitions | 23.0 | -24.4 | | | 0.3 | | | 352.4 |
| Purchases of short-term investments | -45.4 | -243.2 | | | | | | |
| Purchases of short-term investments | -45.4 | -243.2 | | | | | | |
| Other cash from investing | | | | | | | | 1.7 |
| Cash from investing | -26.3 | -271.4 | -1.5 | -4.9 | -1.0 | -7.0 | -8.6 | 349.2 |
| |
| Issuance of common stock, net | | | 129.6 | 262.5 | | | | |
| Other cash from financing | 14.0 | -57.3 | -6.0 | -100.7 | -5.6 | -20.0 | -8.0 | -62.9 |
| Cash from financing | 14.0 | -57.3 | 123.6 | 161.8 | -5.6 | -20.0 | -8.0 | -62.9 |
| |
| Free cash flow | -20.0 | 24.7 | -49.3 | -26.1 | -51.0 | -24.7 | -109.5 | 3.3 |
| Per share (diluted) | ($0.03) | $0.04 | ($0.09) | ($0.05) | ($0.10) | ($0.05) | ($0.24) | $0.01 |
| |