| In millions, except per share items | Sep-30-21 | Jun-30-21 | Mar-31-21 | Dec-31-20 | Sep-30-20 | Jun-30-20 | Mar-31-20 | Dec-31-19 |
| | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K |
| Net income | -23.2 | -21.9 | -18.4 | -19.2 | -15.6 | -12.9 | -8.1 | -5.0 |
| Depreciation and amortization | 10.6 | 10.8 | 10.9 | 11.0 | 10.7 | 10.3 | 9.9 | 9.6 |
| Stock-based compensation | | 0.0 | 0.0 | | | -0.8 | -0.3 | 0.0 |
| Deferred taxes | | | | | | -0.6 | -0.5 | 0.0 |
| Change in working capital | 0.5 | 0.8 | 0.1 | -0.4 | -0.4 | -0.3 | -1.6 | -0.6 |
| Other | 0.5 | 0.8 | 0.1 | -0.4 | -0.4 | -0.3 | -1.6 | -0.6 |
| Other operating activities | 16.6 | 13.0 | 4.3 | 7.9 | 4.2 | 7.3 | 7.8 | 5.4 |
| Cash from operations | 4.5 | 2.8 | -2.8 | -0.8 | -2.6 | 3.0 | 7.3 | 9.3 |
| |
| Capital expenditures [+] | 0.9 | 0.8 | 0.6 | 0.6 | 3.1 | 2.8 | 2.0 | 1.5 |
| Purchases of property and equipment | 0.9 | 0.8 | 0.6 | 0.6 | 3.1 | 2.8 | 2.0 | 1.5 |
| Sales of property and equipment | 0.0 | 0.0 | | 0.0 | | 0.0 | 0.0 | 4.2 |
| Other cash from investing | -1.8 | -1.7 | | -7.9 | -10.5 | -9.5 | -8.2 | -1.3 |
| Cash from investing | -0.9 | -0.8 | -0.6 | -7.3 | -7.4 | -6.6 | -6.2 | 4.4 |
| |
| Cash dividends paid | | | | | | | | 9.3 |
| Financing costs | | 0.0 | 0.3 | | | 0.4 | -0.1 | 0.0 |
| Other cash from financing | -0.9 | -0.6 | 0.5 | 7.2 | -8.4 | -8.4 | -12.1 | -23.7 |
| Cash from financing | -0.9 | -0.6 | 0.2 | 7.2 | 7.4 | 5.2 | -0.4 | -14.4 |
| |
| Free cash flow | 5.4 | 3.6 | -2.2 | -0.2 | 0.5 | 5.9 | 9.3 | 10.7 |
| Per share (diluted) | $0.44 | $0.30 | ($0.18) | ($0.02) | $0.04 | $0.49 | $0.78 | $0.91 |
| |
| Cash paid for interest | 8.2 | 7.4 | 7.1 | 7.3 | 6.4 | 6.4 | 6.6 | 6.7 |
| Cash paid for income taxes | 0.1 | | 0.1 | | 0.1 | 0.1 | 0.0 | |