| In millions, except per share items | Jun-30-23 | Mar-31-23 | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 |
| | 10-Q | 8-K | 8-K | 8-K | 10-Q | 10-Q | 10-K | 10-Q |
| Net income | -11.3 | -15.5 | -22.0 | -27.1 | -36.9 | -39.5 | -45.7 | -59.1 |
| Depreciation and amortization | | | | | 79.4 | 80.0 | 79.7 | 78.3 |
| Stock-based compensation | | | | | 1.1 | 1.5 | 2.0 | 2.2 |
| Deferred taxes | | | | | -1.5 | -0.9 | -0.6 | 0.8 |
| Change in working capital [+] | | | | | -9.8 | -4.7 | 2.1 | 23.1 |
| Accounts receivable | | | | | -15.3 | -13.6 | -6.5 | 8.0 |
| Inventories | | | | | -17.5 | -12.0 | -7.7 | -4.2 |
| Other | | | | | 23.0 | 21.0 | 16.4 | 19.3 |
| Other operating activities | | | | | -3.5 | -3.2 | -4.6 | -16.1 |
| Cash from operations | | | | | 28.8 | 33.2 | 33.0 | 35.7 |
| |
| Capital expenditures [+] | | | | | -54.2 | -48.3 | -43.7 | -21.1 |
| Purchases of property and equipment | | | | | -54.2 | -48.3 | -43.7 | -21.1 |
| Sales of property and equipment | | | | | | 4.6 | 1.5 | -1.8 |
| Acquisitions | | | | | | | | -0.4 |
| Other cash from investing | | | | | | | 3.2 | 1.6 |
| Cash from investing | | | | | -48.7 | -42.2 | -39.5 | -21.8 |
| |
| Cash dividends paid | | | | | | | -8.2 | |
| Other cash from financing | | | | | 28.2 | 13.9 | 5.9 | -4.0 |
| Cash from financing | | | | | 19.9 | 5.7 | -2.4 | -6.0 |
| |
| Free cash flow | | | | | -25.4 | -15.1 | -10.7 | 14.5 |
| Per share (diluted) | | | | | ($0.26) | ($0.20) | ($0.21) | $0.30 |
| |
| Cash paid for interest | | | | | 49.2 | 46.3 | 49.2 | 44.2 |
| Cash paid for income taxes | | | | | 6.5 | 6.6 | 4.8 | 3.3 |