| In millions, except per share items | Feb-29-20 | Nov-30-19 | Aug-31-19 | May-31-19 | Feb-28-19 | Nov-30-18 | Aug-31-18 | May-31-18 |
| | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q |
| Net income | -21.7 | -22.4 | 8.3 | 6.1 | 8.9 | 20.8 | -79.1 | -69.3 |
| Depreciation and amortization | 31.0 | 31.3 | 31.3 | 31.6 | 31.0 | 30.2 | 29.5 | 28.8 |
| Asset impairment charges | 8.1 | 8.1 | 4.5 | 14.1 | 14.5 | 14.5 | 30.9 | 21.1 |
| Stock-based compensation | 2.3 | 2.0 | 3.5 | 2.8 | 2.6 | 2.8 | 2.4 | 2.7 |
| Deferred taxes | -1.7 | -2.0 | -8.1 | -7.9 | -8.4 | -13.8 | 70.5 | 70.6 |
| Change in working capital [+] | 7.6 | 9.3 | -2.4 | 1.6 | 15.6 | 3.0 | 20.5 | 33.5 |
| Accounts receivable | 12.5 | 9.8 | -2.8 | -6.0 | 8.5 | 4.3 | 8.6 | 27.9 |
| Inventories | 7.4 | -4.2 | 6.4 | -0.9 | -0.5 | 4.1 | -2.2 | 0.4 |
| Other current assets | -5.3 | 0.2 | 7.8 | 11.6 | 6.6 | 4.9 | 12.5 | 9.5 |
| Other | -7.0 | 3.5 | -13.8 | -3.1 | 1.0 | -10.3 | 1.6 | -4.3 |
| Other operating activities | -0.2 | -1.9 | -14.0 | -12.0 | -7.8 | -0.8 | -18.0 | -32.3 |
| Cash from operations | 25.4 | 24.4 | 23.1 | 36.3 | 56.4 | 56.7 | 56.7 | 55.1 |
| |
| Capital expenditures [+] | -29.7 | -33.1 | -36.9 | -35.4 | -28.0 | -23.8 | -20.9 | -22.3 |
| Purchases of property and equipment | -29.7 | -33.1 | -36.9 | -35.4 | -28.0 | -23.8 | -20.9 | -22.3 |
| Sales of property and equipment | | 5.6 | | 5.5 | | | | |
| Acquisitions | | -2.8 | | | -20.4 | -23.1 | -14.1 | |
| Other cash from investing | | 0.0 | | | -4.5 | 0.9 | 13.6 | |
| Cash from investing | -24.1 | -30.3 | -55.9 | -54.8 | -52.9 | -46.0 | -21.4 | -27.2 |
| |
| Financing costs | | | | | | -0.9 | | 1.0 |
| Other cash from financing | 6.5 | | 2.6 | -0.6 | -4.4 | | -44.7 | -45.3 |
| Cash from financing | 6.5 | 2.6 | 4.5 | 1.3 | -3.5 | -42.7 | -45.7 | -46.3 |
| |
| Free cash flow | -4.3 | -8.7 | -13.8 | 0.9 | 28.4 | 32.9 | 35.8 | 32.8 |
| Per share (diluted) | ($0.10) | ($0.19) | ($0.31) | $0.02 | $0.63 | $0.73 | $0.80 | $0.73 |
| |
| Cash paid for interest | 13.7 | | 14.2 | 13.8 | 12.8 | | 13.2 | 13.8 |
| Cash paid for income taxes | 6.3 | | 6.2 | 5.9 | 5.5 | | 5.7 | 4.6 |