In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 |
| 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
Net income | 48.1 | 35.3 | -172.9 | 48.8 | 53.2 | 41.2 | 23.1 | 17.4 |
Depreciation and amortization | 29.7 | 25.1 | 29.3 | 29.3 | 18.8 | 21.7 | 34.2 | 34.1 |
Stock-based compensation | | | | 4.9 | 3.1 | 3.1 | 3.4 | 3.7 |
Tax benefit from stock-based compensation | | | | | | | | -0.3 |
Deferred taxes | | | | 4.2 | 1.3 | 1.8 | -2.1 | -9.7 |
Change in working capital [+] | -27.9 | -29.2 | 44.6 | -14.4 | -14.8 | -14.4 | -1.1 | -16.2 |
Accounts receivable | -27.9 | -29.2 | 44.6 | -12.7 | -16.7 | -2.6 | -15.9 | 3.5 |
Other current assets | | | | -6.9 | 0.1 | | | |
Accounts payable | | | | 5.2 | 0.8 | -7.2 | 14.8 | -11.4 |
Accrued expenses | | | | | | -3.3 | 1.2 | -6.5 |
Other | | | | | 1.0 | -1.3 | -1.2 | -1.8 |
Other operating activities | 43.4 | 22.2 | 139.2 | 3.2 | 9.3 | -8.2 | 2.2 | 14.6 |
Cash from operations | 93.3 | 53.4 | 40.2 | 76.0 | 70.9 | 45.2 | 59.7 | 43.6 |
|
Capital expenditures [+] | 21.9 | 9.6 | 8.4 | -10.2 | -8.9 | -6.8 | -13.0 | -9.6 |
Purchases of property and equipment | 21.9 | 9.6 | 8.4 | -10.2 | -8.9 | -6.8 | -13.0 | -9.6 |
Sales of property and equipment | | | | | | 0.8 | 3.0 | 0.5 |
Purchases of intangible assets | | | | -2.6 | -1.1 | -0.7 | -3.8 | -3.7 |
Acquisitions | 30.5 | | | | -277.9 | | | |
Other cash from investing | -106.4 | -18.7 | -19.9 | 0.3 | 19.5 | 9.0 | | 1.0 |
Cash from investing | -54.0 | -9.1 | -11.5 | -12.5 | -268.4 | 2.3 | -13.8 | -11.8 |
|
Repurchase of common stock, net | -48.7 | | -15.3 | -47.6 | | | -7.5 | |
Financing costs | 2.5 | 1.3 | 1.7 | | -3.2 | | | |
Other cash from financing | 8.8 | -41.1 | -22.0 | -31.8 | 212.0 | -47.2 | -34.6 | -30.6 |
Cash from financing | -42.4 | -42.4 | -39.0 | -79.4 | 215.2 | -47.2 | -42.1 | -30.6 |
|
Free cash flow | 115.2 | 63.0 | 48.6 | 65.8 | 62.0 | 38.4 | 46.7 | 34.0 |
Per share (diluted) | $5.48 | $2.95 | $2.31 | $2.96 | $2.74 | $1.71 | $2.07 | $1.51 |
|
Cash paid for interest | 16.9 | 19.4 | 18.8 | 17.9 | 8.5 | 8.0 | 9.2 | 10.7 |
Cash paid for income taxes | -7.1 | 0.5 | 2.4 | 15.3 | 15.3 | 26.5 | 17.6 | 18.1 |