| In millions, except per share items | Dec-31-22 | Dec-05-22 | Dec-31-21 | Dec-05-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 |
| | 10-K | 8-K | 10-K | 8-K | 10-K | 10-K | 10-K | 10-K |
| Net income | 63.2 | 63.2 | 84.9 | 84.9 | 121.0 | 66.6 | 23.4 | 60.4 |
| Depreciation and amortization | 56.1 | 56.1 | 57.7 | 57.7 | 54.1 | 55.1 | 50.8 | 49.8 |
| Asset impairment charges | | | | | | | | 3.7 |
| Stock-based compensation | | 13.2 | | 13.0 | | 12.1 | 12.5 | 10.6 |
| Deferred taxes | 2.7 | 2.7 | 16.9 | 16.9 | 9.4 | -10.9 | 9.1 | 1.6 |
| Change in working capital [+] | 1.1 | -26.9 | 2.1 | -11.6 | -8.6 | -7.0 | -44.8 | -18.8 |
| Accounts receivable | | -32.3 | | -12.7 | | 25.4 | -7.7 | -16.0 |
| Inventories | | -41.8 | | -24.3 | | -14.8 | -18.3 | 0.7 |
| Accounts payable | | 32.7 | | 20.9 | | -3.1 | 30.8 | -13.6 |
| Accrued expenses | | -7.3 | | -21.0 | | 3.9 | -27.0 | 31.2 |
| Other | 1.1 | 21.8 | 2.1 | 25.5 | -8.6 | -18.4 | -22.6 | -21.1 |
| Other operating activities | -20.8 | -6.0 | -58.6 | -57.9 | -48.8 | -0.6 | 27.3 | -5.5 |
| Cash from operations | 102.3 | 102.3 | 103.0 | 103.0 | 127.1 | 115.3 | 78.3 | 101.8 |
| |
| Capital expenditures | 105.3 | -105.3 | 125.0 | -125.0 | 69.8 | -37.2 | -109.7 | -67.5 |
| Purchases of property and equipment | 105.3 | -105.3 | 125.0 | -125.0 | 69.8 | -37.2 | -109.7 | -67.5 |
| Acquisitions | 14.7 | -14.7 | | | | | -264.0 | |
| Other cash from investing | -234.8 | 5.2 | -214.5 | 35.5 | -64.2 | 3.4 | -2.7 | 11.0 |
| Cash from investing | -114.8 | -114.8 | -89.5 | -89.5 | 5.6 | -33.8 | -376.4 | -56.5 |
| |
| Cash dividends paid | | -4.2 | | | | | | |
| Repurchase of common stock, net | -22.5 | -22.5 | -9.1 | -9.1 | -0.5 | 3.1 | -28.9 | -2.5 |
| Financing costs | 4.8 | -4.8 | | | 0.2 | -1.0 | -2.9 | -11.0 |
| Other cash from financing | 32.1 | 26.7 | 5.1 | 5.1 | -128.0 | -92.8 | 308.8 | -14.4 |
| Cash from financing | 4.8 | 4.8 | -4.0 | -4.0 | -128.7 | -88.7 | 282.8 | -5.9 |
| |
| Free cash flow | 207.6 | -3.0 | 228.0 | -22.0 | 196.9 | 78.1 | -31.4 | 34.3 |
| Per share (diluted) | $9.74 | ($0.14) | $10.40 | ($1.00) | $9.21 | $3.71 | ($1.47) | $1.56 |
| |
| Cash paid for interest | 41.3 | 41.3 | 38.1 | 38.1 | 50.1 | 60.9 | 49.8 | 37.6 |
| Cash paid for income taxes | 20.7 | | 23.4 | | 13.4 | 16.8 | 25.9 | 16.6 |