| In millions, except per share items | Jun-30-15 | Mar-31-15 | Dec-31-14 | Sep-30-14 | Jun-30-14 | Mar-31-14 | Dec-31-13 | Sep-30-13 |
| | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q |
| Net income | 1.7 | -3.2 | -9.1 | -3.8 | -8.7 | -11.1 | -17.1 | -5.7 |
| Depreciation and amortization | 4.7 | 5.0 | 5.8 | 6.4 | 6.4 | 6.4 | 6.6 | 8.6 |
| Stock-based compensation | 0.2 | 0.1 | 0.1 | | -0.1 | -0.2 | | -0.4 |
| Deferred taxes | -1.7 | -0.5 | -1.4 | 1.3 | 0.1 | -0.1 | 6.5 | |
| Change in working capital [+] | -1.5 | -14.2 | 45.4 | 7.5 | 7.4 | -10.8 | 15.3 | 44.3 |
| Accounts receivable | 1.2 | -19.6 | 20.6 | -2.0 | -3.7 | -5.0 | 0.5 | 18.0 |
| Inventories | -3.6 | -17.7 | 14.2 | 13.0 | 7.5 | -9.4 | 19.1 | 0.4 |
| Other | 0.9 | 23.1 | 10.6 | -3.5 | 3.6 | 3.6 | -4.3 | 25.9 |
| Other operating activities | -6.4 | -8.5 | -13.8 | -14.7 | -2.4 | -3.4 | 10.0 | -49.5 |
| Cash from operations | -3.0 | -21.3 | 27.0 | -3.3 | 2.7 | -19.2 | 21.3 | -2.7 |
| |
| Capital expenditures [+] | -2.9 | -3.1 | -5.7 | -1.7 | -3.4 | -2.8 | -3.6 | -3.3 |
| Purchases of property and equipment | -2.9 | -3.1 | -5.7 | -1.7 | -3.4 | -2.8 | -3.6 | -3.3 |
| Sales of property and equipment | 1.0 | | | 3.9 | 0.1 | 4.1 | 0.1 | 0.2 |
| Other cash from investing | -0.1 | 1.4 | 2.5 | -5.7 | -5.1 | 12.1 | -12.4 | 1.7 |
| Cash from investing | -2.0 | -1.7 | -3.2 | -3.5 | -8.4 | 13.4 | -15.9 | -1.4 |
| |
| Financing costs | -0.1 | | -0.2 | -0.4 | | -0.2 | -0.2 | |
| Other cash from financing | 2.8 | 0.6 | -12.0 | 5.5 | -1.1 | -6.1 | 9.5 | 9.0 |
| Cash from financing | 2.9 | 0.6 | -11.8 | 5.9 | -1.1 | -5.9 | 9.7 | 9.0 |
| |
| Free cash flow | -5.9 | -24.4 | 21.3 | -5.0 | -0.7 | -22.0 | 17.7 | -6.0 |
| Per share (diluted) | ($0.32) | ($1.32) | $1.15 | ($0.27) | ($0.04) | ($1.19) | $0.96 | ($0.32) |
| |
| Cash paid for interest | 2.4 | 1.8 | 1.8 | 6.9 | 2.5 | 2.1 | 2.1 | 6.7 |
| Cash paid for income taxes | 0.2 | 0.2 | 0.2 | 0.6 | 0.2 | 0.1 | 0.2 | 1.2 |