| In millions, except per share items | Dec-31-22 | Jan-01-22 | Jan-02-21 | Dec-28-19 | Dec-29-18 | Dec-30-17 | Dec-31-16 | Jan-02-16 |
| | 8-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Net income | 98.4 | 104.6 | 14.2 | 60.3 | 46.7 | 31.6 | 23.3 | 33.1 |
| Depreciation and amortization [+] | 51.6 | 54.4 | 39.7 | 35.2 | 39.7 | 19.2 | 11.3 | 9.6 |
| Depreciation | | 53.8 | 37.8 | | 16.5 | 10.8 | 9.8 | 9.2 |
| Amortization | | 0.6 | 1.9 | | 23.3 | 8.4 | 1.5 | 0.4 |
| Asset impairment charges | | | | | | | | -0.2 |
| Stock-based compensation | 8.6 | | | | 4.3 | 4.0 | 4.8 | 4.3 |
| Deferred taxes | -4.5 | -1.4 | -3.6 | -0.6 | -1.5 | -6.8 | 0.1 | -0.8 |
| Change in working capital [+] | -48.7 | 6.2 | 3.4 | 6.7 | -20.1 | -10.8 | -2.8 | 4.0 |
| Accounts receivable | 9.1 | | | | -6.0 | -11.1 | -3.2 | 4.0 |
| Inventories | -27.0 | | | | -11.7 | -13.1 | -1.4 | 1.2 |
| Other current assets | 1.6 | | | | 0.6 | 0.3 | -0.2 | -0.7 |
| Accounts payable | -11.5 | | | | 5.9 | 5.8 | 2.6 | -0.5 |
| Accrued expenses | | 8.1 | 3.8 | 5.7 | -1.4 | 1.5 | 0.7 | 0.5 |
| Income taxes | -7.3 | -1.9 | -0.5 | 1.0 | -4.5 | 4.2 | 0.6 | -0.3 |
| Other | -13.6 | | | | -3.0 | 1.6 | -1.9 | -0.3 |
| Other operating activities | 4.5 | -50.5 | 54.9 | -11.1 | 8.2 | 12.2 | 1.8 | 0.0 |
| Cash from operations | 109.9 | 113.2 | 108.6 | 90.5 | 77.5 | 49.4 | 38.5 | 49.9 |
| |
| Capital expenditures [+] | -35.0 | 26.8 | 14.6 | 25.0 | -28.4 | -22.2 | -6.2 | -6.1 |
| Purchases of property and equipment | -31.9 | 26.8 | 14.6 | 25.0 | -28.4 | -22.2 | -6.2 | -6.1 |
| Capitalized product costs | -3.1 | | | | | | | |
| Sales of property and equipment | 7.2 | 0.2 | 0.1 | 0.2 | 0.1 | 0.0 | 0.0 | 1.6 |
| Purchases of intangible assets | | | | | | | -1.2 | -1.4 |
| Acquisitions | -67.3 | 61.1 | 217.0 | | -534.7 | -0.5 | -200.1 | |
| Sales of short-term investments, net [+] | | | | | | 6.7 | 37.7 | -3.4 |
| Purchases of short-term investments | | | | | | | -24.7 | -30.1 |
| Sales of short-term investments | | | | | | 6.7 | 62.4 | 26.7 |
| Other cash from investing | 4.3 | -178.3 | -467.6 | -47.6 | -2.5 | | | |
| Cash from investing | -90.8 | -90.3 | -235.9 | -22.4 | -565.5 | -16.0 | -169.8 | -9.3 |
| |
| Cash dividends paid | -11.7 | 11.6 | 11.6 | 11.5 | -11.0 | -10.3 | -10.7 | -12.0 |
| Issuance of common stock, net | | 1.8 | 1.3 | 1.7 | 241.3 | 1.2 | 1.0 | 1.0 |
| Financing costs | | | 1.7 | | -1.8 | | -2.0 | |
| Other cash from financing | 4.8 | -36.0 | 126.6 | -84.9 | 215.2 | -41.0 | 136.0 | 0.2 |
| Cash from financing | -6.9 | -22.6 | 137.7 | -71.7 | 447.3 | -50.1 | 128.2 | -10.8 |
| |
| Free cash flow | 78.0 | 140.0 | 123.1 | 115.5 | 49.1 | 27.2 | 32.3 | 43.8 |
| Per share (diluted) | $2.30 | $4.31 | $3.82 | $3.60 | $1.57 | $1.01 | $1.20 | $1.64 |
| |
| Cash paid for interest | | | | | 12.8 | 3.7 | 0.4 | |