| In millions, except per share items | Dec-31-19 | Sep-30-19 | Jun-30-19 | Mar-31-19 | Dec-31-18 | Sep-30-18 | Jun-30-18 | Mar-31-18 |
| | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q |
| Net income | -238.6 | -29.4 | -16.2 | -20.0 | -21.6 | -16.7 | -14.8 | -22.3 |
| Depreciation and amortization | 7.1 | 8.1 | 7.7 | 7.8 | 8.0 | 8.7 | 8.9 | 9.0 |
| Stock-based compensation | 0.5 | 0.7 | 0.7 | 0.9 | 0.5 | 0.8 | 1.4 | 0.9 |
| Deferred taxes | -1.2 | 0.1 | | | 1.1 | -0.2 | | 0.0 |
| Change in working capital [+] | 9.7 | 9.1 | 3.3 | 7.4 | 11.9 | 7.7 | -13.2 | 4.3 |
| Accounts receivable | 8.2 | 1.7 | 5.6 | 6.1 | 1.6 | 3.7 | -6.0 | 2.2 |
| Inventories | 6.3 | 0.1 | -3.4 | 9.2 | 9.0 | 4.3 | -4.1 | 5.0 |
| Other current assets | | 1.9 | -0.5 | 0.3 | | 0.5 | 1.0 | -1.4 |
| Accounts payable | -3.8 | -2.3 | 0.9 | 0.4 | -4.7 | -2.7 | -2.4 | 1.1 |
| Accrued expenses | 0.7 | 8.5 | 0.6 | -8.5 | 6.1 | 1.9 | -1.7 | -2.6 |
| Income taxes | 0.0 | -0.8 | 0.1 | -0.1 | 0.0 | 0.0 | 0.1 | 0.0 |
| Other | -1.7 | | | | -0.1 | | | |
| Other operating activities | 218.3 | 12.6 | -0.5 | 0.4 | 3.5 | -0.8 | 0.5 | 1.0 |
| Cash from operations | -4.1 | 1.1 | -4.9 | -3.6 | 3.3 | -0.6 | -17.2 | -7.1 |
| |
| Capital expenditures [+] | 0.0 | -1.1 | -0.5 | -0.6 | -0.4 | -0.5 | -0.8 | -0.4 |
| Purchases of property and equipment | 0.0 | -1.1 | -0.5 | -0.6 | -0.4 | -0.5 | -0.8 | -0.4 |
| Sales of property and equipment | 0.2 | 0.7 | 0.0 | 0.1 | 22.3 | 5.2 | 0.1 | 0.0 |
| Other cash from investing | -1.5 | -0.4 | -1.2 | | | | | |
| Cash from investing | -1.3 | -0.8 | -1.6 | -0.6 | 21.9 | 4.7 | -0.7 | -0.4 |
| |
| Repurchase of common stock, net | | | | -0.3 | | | | -0.4 |
| Financing costs | | | -0.2 | | | | | |
| Other cash from financing | -0.8 | -1.0 | -24.6 | 2.9 | -0.4 | -0.4 | 2.7 | -0.4 |
| Cash from financing | -0.8 | -1.0 | -24.4 | 2.6 | -0.4 | -0.4 | 2.7 | -0.8 |
| |
| Free cash flow | -4.1 | 0.0 | -5.4 | -4.2 | 2.9 | -1.1 | -18.0 | -7.5 |
| Per share (diluted) | ($0.14) | $0.00 | ($0.19) | ($0.15) | $0.11 | ($0.04) | ($0.67) | ($0.28) |
| |
| Cash paid for interest | 0.0 | 2.3 | 1.5 | 2.9 | 0.9 | 2.9 | 0.9 | 2.9 |