| In millions, except per share items | Dec-31-14 | Dec-31-13 | Dec-31-12 | Dec-31-11 | Dec-31-10 | Dec-31-09 | Dec-31-08 | Dec-31-07 |
| | 10-K | 10-K | 10-K | 10-K/A | 10-K | 10-K | 10-K | 10-K |
| Net income | -32.7 | -37.5 | 22.6 | -73.2 | -56.8 | -93.4 | -50.5 | -178.1 |
| Depreciation and amortization | 25.0 | 33.5 | 36.4 | 40.5 | 40.4 | 44.8 | 42.4 | 55.5 |
| Asset impairment charges | | | | | 0.4 | 1.2 | | |
| Stock-based compensation | -0.2 | 0.8 | 0.5 | -1.6 | 1.5 | 0.8 | 1.4 | |
| Deferred taxes | -0.1 | 6.3 | -3.5 | 0.1 | -15.8 | -1.4 | 5.8 | |
| Change in working capital [+] | 40.2 | 14.3 | -84.0 | 22.9 | -60.9 | 62.1 | -4.8 | 62.9 |
| Accounts receivable | 9.9 | 6.2 | -15.4 | 34.9 | -47.8 | 21.3 | -10.9 | 35.2 |
| Inventories | 25.3 | -10.5 | 9.4 | 6.5 | -41.1 | 34.4 | 8.3 | 30.2 |
| Other | 5.0 | 18.6 | -78.0 | -18.5 | 28.0 | 6.4 | -2.2 | -2.5 |
| Other operating activities | -25.0 | -5.8 | 36.8 | 6.0 | 45.2 | -12.5 | 76.3 | |
| Cash from operations | 7.2 | 11.6 | 8.8 | -5.3 | -46.0 | 1.6 | 70.6 | -14.8 |
| |
| Capital expenditures [+] | -13.6 | -11.8 | -13.8 | -17.7 | -9.2 | -7.9 | -8.0 | -9.2 |
| Purchases of property and equipment | -13.6 | -11.8 | -13.8 | -17.7 | -9.2 | -7.9 | -8.0 | -9.2 |
| Sales of property and equipment | 3.9 | 0.3 | 1.0 | 4.8 | 0.2 | -13.1 | | |
| Other cash from investing | 8.0 | -10.5 | 7.1 | 3.8 | | 2.7 | 17.7 | |
| Cash from investing | -1.7 | -22.0 | -5.7 | -9.1 | -9.0 | -18.3 | 9.7 | 244.3 |
| |
| Financing costs | -0.6 | -0.2 | | -0.3 | | | | |
| Other cash from financing | -13.5 | 9.6 | 3.1 | 0.3 | 31.5 | -7.8 | -23.4 | |
| Cash from financing | -12.9 | 9.8 | 3.1 | 0.6 | 31.5 | -7.8 | -23.4 | -237.5 |
| |
| Free cash flow | -6.4 | -0.2 | -5.0 | -23.0 | -55.2 | -6.3 | 62.6 | -24.0 |
| Per share (diluted) | ($0.35) | ($0.01) | ($0.27) | ($1.24) | ($2.99) | ($0.34) | $3.39 | ($1,298.70) |
| |
| Cash paid for interest | 8.7 | 8.8 | 9.1 | 9.6 | 8.7 | 11.9 | | |
| Cash paid for income taxes | 0.8 | 1.4 | 0.7 | -0.5 | 0.2 | -13.9 | | |