| In millions, except per share items | Dec-31-17 | Nov-30-17 | Dec-31-16 | Nov-30-16 | Dec-31-15 | Dec-28-14 | Dec-29-13 |
| | 10-K/A | 10-K | 10-K/A | 10-K | 10-K/A | 10-K | 8-K |
| Net income | 12.6 | 11.4 | 15.1 | 27.1 | 10.5 | -1.2 | -3.8 |
| Depreciation and amortization [+] | 20.7 | 28.5 | 20.7 | 22.9 | 22.5 | 2.3 | 3.2 |
| Depreciation | 20.7 | 28.5 | 20.7 | 22.9 | 22.5 | 2.3 | 3.2 |
| Stock-based compensation | | 0.2 | | 0.2 | | | |
| Deferred taxes | | 6.6 | | 18.2 | | | |
| Change in working capital [+] | 1.9 | 9.9 | 0.7 | -0.3 | -6.5 | -4.3 | 8.8 |
| Accounts receivable | | | | | -5.0 | | |
| Other current assets | 1.9 | 7.8 | 0.7 | -1.4 | -0.4 | | |
| Accounts payable | | | | | -1.3 | | |
| Deferred revenues | | 0.0 | | -0.1 | | -0.8 | |
| Other | | 2.1 | | 1.2 | 0.2 | -3.5 | 8.8 |
| Other operating activities | 2.6 | 32.0 | 2.3 | -13.5 | 1.2 | 5.0 | -2.9 |
| Cash from operations | 37.8 | 88.7 | 38.8 | 54.6 | 27.7 | 1.8 | 5.4 |
| |
| Capital expenditures [+] | -0.6 | 0.0 | -0.5 | 0.0 | 0.0 | 0.0 | -19.3 |
| Purchases of property and equipment | -0.6 | | -0.5 | | 0.0 | | -19.3 |
| Sales of property and equipment | | -0.3 | | 1.2 | | -58.5 | |
| Acquisitions | | -317.6 | | -284.8 | | | |
| Other cash from investing | | 36.9 | | 11.6 | -4.7 | 3.2 | 11.2 |
| Cash from investing | -0.6 | -281.0 | -0.5 | -272.0 | -4.7 | -55.2 | -8.1 |
| |
| Cash dividends paid | | -29.3 | | -20.2 | | | |
| Issuance of common stock, net | | | | 113.3 | | | |
| Other cash from financing | -36.6 | 220.8 | -38.7 | 81.8 | -22.9 | 53.4 | 2.7 |
| Cash from financing | -36.6 | 191.6 | -38.7 | 174.8 | -22.9 | 53.4 | 2.7 |
| |
| Free cash flow | 37.2 | 88.7 | 38.3 | 54.6 | 27.7 | 1.8 | -13.9 |
| Per share (diluted) | | $2.03 | | $1.48 | | | |
| |
| Cash paid for interest | | 22.0 | | 11.5 | | 0.7 | |