| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 |
| | 10-K | 10-K | 10-K | 10-K |
| Net income | 19.4 | -18.5 | -52.3 | -46.7 |
| Depreciation and amortization | 73.1 | 82.1 | 91.2 | 93.8 |
| Asset impairment charges | 1.0 | 3.3 | 1.8 | 3.2 |
| Stock-based compensation | 23.8 | 32.6 | 3.5 | 1.5 |
| Deferred taxes | -3.3 | -22.0 | -17.0 | -18.1 |
| Change in working capital [+] | -9.6 | -0.8 | 14.0 | -21.8 |
| Accounts receivable | -11.2 | -40.1 | 0.2 | -11.6 |
| Accounts payable | 7.9 | 13.0 | -3.5 | -2.0 |
| Accrued expenses | 0.3 | 30.2 | -6.4 | 3.4 |
| Other | -6.6 | -3.9 | 23.7 | -11.6 |
| Other operating activities | -0.2 | -8.0 | -5.0 | 24.3 |
| Cash from operations | 104.3 | 68.6 | 36.2 | 36.2 |
| |
| Capital expenditures [+] | -4.5 | -3.2 | -2.3 | -5.3 |
| Purchases of property and equipment | -4.5 | -3.2 | -2.3 | -5.3 |
| Sales of property and equipment | 0.1 | 0.0 | 0.2 | 0.0 |
| Purchases of intangible assets | -15.7 | -15.9 | -14.2 | -26.6 |
| Acquisitions | | -66.3 | | -2.0 |
| Cash from investing | -20.1 | -85.4 | -16.3 | -33.9 |
| |
| Issuance of common stock, net | -11.5 | 105.1 | 3.3 | 0.1 |
| Financing costs | -9.1 | | | |
| Other cash from financing | -23.5 | -106.2 | -6.5 | -8.0 |
| Cash from financing | -25.9 | -1.1 | -3.2 | -7.9 |
| |
| Free cash flow | 99.8 | 65.4 | 33.9 | 30.9 |
| Per share (diluted) | $1.01 | $0.72 | $0.38 | $0.35 |
| |
| Cash paid for interest | 32.3 | 30.8 | 34.7 | 33.9 |
| Cash paid for income taxes | 18.5 | 5.6 | 3.2 | 6.6 |