| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Net income | -14.9 | 66.4 | 0.6 | -31.0 | 114.6 | 311.2 | 67.9 | 55.3 |
| Depreciation and amortization | 134.6 | 138.3 | 138.4 | 142.2 | 146.0 | 96.6 | 88.3 | 89.2 |
| Asset impairment charges | | | | | | | | 28.5 |
| Stock-based compensation | 9.7 | 5.1 | 6.4 | 6.5 | 13.0 | 9.0 | 7.2 | 10.0 |
| Deferred taxes | -3.9 | -37.1 | -12.2 | -16.3 | 7.6 | 29.8 | 45.2 | -9.8 |
| Change in working capital [+] | -37.4 | -14.2 | -53.1 | -2.1 | -20.8 | -3.7 | 23.3 | 8.1 |
| Accounts receivable | -33.8 | -11.5 | 4.5 | 14.4 | -31.5 | -2.6 | 31.3 | 0.7 |
| Inventories | -35.1 | -58.3 | 15.2 | 47.8 | -21.6 | -0.7 | 7.0 | 14.8 |
| Accounts payable | -8.3 | 7.4 | -5.7 | -25.3 | 30.2 | 17.6 | -2.0 | -19.8 |
| Accrued expenses | 27.9 | 23.9 | 9.1 | -21.3 | 4.9 | -4.3 | 0.2 | 15.5 |
| Other | 11.9 | 24.4 | -76.2 | -17.8 | -2.7 | -13.8 | -13.1 | -3.1 |
| Other operating activities | -19.1 | -84.8 | -25.7 | -40.8 | -38.3 | -316.6 | 0.4 | 20.5 |
| Cash from operations | 68.8 | 73.7 | 54.3 | 58.4 | 222.1 | 126.3 | 232.2 | 201.7 |
| |
| Capital expenditures [+] | 0.0 | 0.0 | 0.0 | -90.5 | -128.8 | -75.0 | -88.7 | -77.4 |
| Purchases of property and equipment | | | | -90.5 | -128.8 | -75.0 | -88.7 | -77.4 |
| Sales of property and equipment | -138.2 | -93.2 | -61.9 | 2.6 | 0.0 | | | |
| Acquisitions | | | | | | -210.2 | | |
| Other cash from investing | 44.0 | 178.6 | -16.0 | 140.4 | 12.8 | 7.7 | 2.1 | |
| Cash from investing | -94.2 | 85.4 | -77.8 | 52.5 | -116.0 | -277.4 | -86.6 | -77.4 |
| |
| Cash dividends paid | | | | -8.6 | -15.1 | -12.7 | -11.8 | -11.8 |
| Repurchase of common stock, net | | | | -6.9 | -42.3 | -0.1 | 0.4 | 0.0 |
| Financing costs | | -0.6 | -23.8 | -3.5 | | -7.0 | | |
| Other cash from financing | -73.1 | -157.3 | -43.2 | -126.6 | -59.1 | -77.8 | 91.1 | -77.1 |
| Cash from financing | -73.1 | -156.7 | -19.4 | -138.5 | -116.5 | -83.6 | 79.7 | -88.9 |
| |
| Free cash flow | 68.8 | 73.7 | 54.3 | -32.1 | 93.3 | 51.3 | 143.5 | 124.2 |
| Per share (diluted) | $1.08 | $1.16 | $0.86 | ($0.59) | $1.43 | $0.92 | $3.04 | $2.94 |
| |
| Cash paid for interest | 58.1 | 46.8 | 49.3 | 48.1 | 55.3 | 35.5 | 35.2 | 38.2 |
| Cash paid for income taxes | 15.2 | 34.7 | -1.2 | 3.3 | 12.6 | 6.0 | -4.7 | 31.7 |