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 | 32.5 | 23.5 | 20.1 | 18.4 | 14.9 | 12.7 | 11.7 | 10.3 |
Depreciation and amortization [+] | | | | 3.0 | 1.9 | 1.8 | 1.8 | 1.7 |
Depreciation | | | | 2.3 | 1.7 | 1.6 | 1.5 | 1.4 |
Amortization of intangible assets | | | | 0.7 | 0.2 | 0.2 | 0.3 | 0.3 |
Stock-based compensation | | | | 1.1 | 0.7 | 0.5 | 0.4 | 0.3 |
Deferred taxes | | | | 0.3 | 0.5 | 0.0 | 0.1 | |
Other operating activities | 8.2 | 11.2 | 7.3 | 1.1 | -7.3 | 2.6 | -1.5 | 2.5 |
Cash from operations | 40.7 | 34.7 | 27.4 | 23.9 | 10.7 | 17.6 | 12.4 | 14.8 |
|
Capital expenditures [+] | 2.6 | 2.0 | 3.2 | -3.5 | -2.6 | -1.9 | -2.4 | -1.7 |
Purchases of property and equipment | 2.6 | 2.0 | 3.2 | -3.5 | -2.6 | -1.9 | -2.4 | -1.7 |
Sales of property and equipment | 0.4 | 0.5 | 0.2 | 0.6 | 0.1 | 0.1 | 0.0 | 0.1 |
Sales of short-term investments, net [+] | 31.1 | 65.6 | 102.8 | 78.2 | 39.8 | 36.6 | 12.7 | 12.2 |
Purchases of short-term investments | | | | | | | -114.8 | -60.9 |
Sales of short-term investments | 31.1 | 65.6 | 102.8 | 78.2 | 39.8 | 36.6 | 127.5 | 73.1 |
Other cash from investing | -424.0 | -333.7 | -284.0 | -224.5 | -35.8 | -83.0 | -74.6 | -64.5 |
Cash from investing | -389.9 | -265.7 | -177.7 | -149.3 | 1.5 | -48.2 | -64.2 | -54.0 |
|
Cash dividends paid | 10.3 | 7.7 | 7.2 | -6.3 | -5.0 | -4.4 | -4.1 | -3.9 |
Repurchase of common stock, net | 0.3 | 0.3 | 0.4 | -0.4 | -0.5 | -0.2 | -0.2 | -0.8 |
Other cash from financing | 242.2 | 228.1 | 267.2 | 145.0 | -2.9 | 41.3 | 62.4 | 41.6 |
Cash from financing | 252.8 | 236.1 | 274.8 | 138.3 | -8.3 | 36.7 | 58.1 | 36.9 |
|
Free cash flow | 43.3 | 36.7 | 30.6 | 20.4 | 8.1 | 15.8 | 10.0 | 13.1 |
Per share (diluted) | $3.31 | $3.17 | $2.77 | $1.85 | $0.88 | $1.72 | $1.10 | $1.43 |
|
Cash paid for interest | 13.7 | 7.0 | 10.1 | 13.5 | 6.5 | 5.1 | 4.2 | 3.6 |