| In millions, except per share items | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-05-18 | Dec-31-17 | Dec-31-15 | Dec-31-14 |
| | 10-K | 10-K | 10-K | 10-K | 8-K | 10-K | 20-F | 20-F |
| Net income | 134.7 | 18.2 | 86.9 | 121.3 | 121.3 | 64.9 | 0.0 | 0.0 |
| Depreciation and amortization | 104.1 | 96.6 | 96.7 | 98.2 | | 98.4 | | |
| Stock-based compensation | 5.2 | 4.4 | 9.4 | 13.9 | | 8.8 | | |
| Deferred taxes | 20.3 | -12.2 | 15.9 | -3.6 | | -7.7 | | |
| Change in working capital [+] | -109.8 | 9.9 | 43.0 | -61.0 | | -39.6 | | |
| Accounts receivable | -67.6 | -16.5 | 45.4 | -39.7 | | -15.9 | | |
| Inventories | -94.9 | 30.0 | 16.4 | -31.4 | | -25.6 | | |
| Accounts payable | 65.0 | -18.7 | -12.0 | 5.4 | | 17.5 | | |
| Other | -12.3 | 15.1 | -6.8 | 4.6 | | -15.6 | | |
| Other operating activities | -9.3 | 8.4 | -20.4 | -46.8 | 0.7 | 23.0 | | |
| Cash from operations | 145.2 | 125.3 | 231.5 | 122.0 | 122.0 | 147.7 | | |
| |
| Capital expenditures [+] | 0.0 | -6.1 | 2.9 | -5.1 | 0.0 | 8.7 | | |
| Purchases of property and equipment | | -6.1 | 2.9 | -5.1 | | 8.7 | | |
| Sales of property and equipment | | | | 64.7 | | | | |
| Acquisitions | | | | -36.6 | -36.6 | | | |
| Other cash from investing | -214.7 | -138.8 | -158.7 | -111.1 | -51.5 | -99.0 | | |
| Cash from investing | -214.7 | -144.9 | -155.8 | -88.1 | -88.1 | -90.3 | 0.0 | 0.0 |
| |
| Cash dividends paid | | -12.0 | -48.1 | -47.7 | -47.7 | -45.7 | | |
| Repurchase of common stock, net | | | | -4.9 | -4.9 | | | |
| Financing costs | | | | -0.7 | | -5.3 | | |
| Other cash from financing | 73.3 | 25.5 | -20.5 | 8.1 | 8.8 | -28.1 | | |
| Cash from financing | 73.3 | 13.5 | -68.6 | -43.8 | -43.8 | -68.5 | 0.0 | 0.0 |
| |
| Free cash flow | 145.2 | 119.2 | 234.4 | 116.9 | 122.0 | 156.4 | | |
| Per share (diluted) | $2.38 | $1.94 | $3.82 | $1.91 | $59,796.57 | $2.58 | | |
| |
| Cash paid for interest | -22.8 | -20.8 | -20.4 | -24.4 | | -25.9 | | |
| Cash paid for income taxes | -37.6 | -7.9 | -24.1 | -60.2 | -60.2 | -39.5 | | |