In millions, except per share items | Dec-31-16 | Dec-31-15 | Dec-31-14 | Dec-31-13 | Dec-31-12 | Dec-31-11 | Dec-31-10 | Dec-31-09 |
| 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
Net income | 132.7 | 127.5 | 116.8 | 94.1 | 84.3 | 37.6 | 22.9 | 82.7 |
Depreciation and amortization [+] | 29.3 | 30.3 | 31.7 | 29.5 | 30.9 | 32.2 | 33.7 | 35.8 |
Depreciation | 25.6 | 26.3 | 27.3 | 26.5 | 27.7 | 28.9 | 29.8 | 30.8 |
Amortization of intangible assets | 3.6 | 4.0 | 4.4 | 3.0 | 3.2 | 3.3 | 3.9 | 5.0 |
Stock-based compensation | 7.1 | 5.6 | 1.2 | 1.6 | 1.9 | 2.7 | 2.0 | 1.3 |
Tax benefit from stock-based compensation | -1.5 | -1.1 | -1.9 | -0.1 | 0.0 | 0.1 | 0.0 | -0.5 |
Deferred taxes | 10.5 | -11.4 | -7.6 | 3.4 | -3.7 | -4.3 | -16.1 | -9.4 |
Change in working capital | -0.2 | 0.8 | -1.3 | 0.9 | 15.5 | 24.2 | 19.7 | -40.3 |
Other | -0.2 | 0.8 | -1.3 | 0.9 | 15.5 | 24.2 | 19.7 | -40.3 |
Other operating activities | -34.4 | -18.3 | 3.2 | 74.3 | 31.8 | 183.7 | 161.8 | 210.3 |
Cash from operations | 143.5 | 133.3 | 142.1 | 203.7 | 160.7 | 276.1 | 224.0 | 280.0 |
|
Capital expenditures [+] | -25.1 | -30.4 | -17.2 | -25.5 | -24.7 | -20.5 | -19.6 | -25.3 |
Purchases of property and equipment | -25.1 | -30.4 | -17.2 | -25.5 | -24.7 | -20.5 | -19.6 | -25.3 |
Sales of property and equipment | 2.0 | 0.5 | 0.5 | 3.1 | 1.1 | 2.4 | 0.5 | 3.4 |
Acquisitions | | | | | | -1.2 | | -1.1 |
Sales of short-term investments, net [+] | -471.9 | 42.7 | 331.8 | -133.5 | 93.8 | 383.4 | 454.3 | 428.0 |
Purchases of short-term investments | -891.2 | -374.2 | -252.5 | -718.4 | -430.8 | -414.3 | -444.3 | -105.0 |
Sales of short-term investments | 419.2 | 416.9 | 584.3 | 584.9 | 524.6 | 797.7 | 898.7 | 533.0 |
Other cash from investing | -446.3 | -639.9 | -774.5 | -324.2 | 194.9 | 278.0 | -1,062.1 | -260.3 |
Cash from investing | -941.2 | -627.0 | -459.4 | -480.0 | 265.1 | 642.1 | -626.9 | 144.6 |
|
Cash dividends paid | -42.3 | -33.4 | -24.0 | -11.4 | -3.8 | -11.7 | -73.5 | -73.3 |
Issuance of common stock, net | -21.4 | -60.0 | 10.9 | 0.9 | 110.2 | 0.0 | 0.4 | 6.3 |
Other cash from financing | 886.4 | 427.8 | 159.2 | -388.4 | 172.1 | -679.3 | 509.5 | -423.8 |
Cash from financing | 822.7 | 334.4 | 146.1 | -398.9 | 278.5 | -691.0 | 436.5 | -490.8 |
|
Free cash flow | 118.4 | 102.9 | 124.9 | 178.3 | 136.0 | 255.6 | 204.4 | 254.7 |
Per share (diluted) | $1.25 | $1.07 | $1.30 | $1.87 | $1.45 | $3.06 | $2.45 | $3.05 |
|
Cash paid for interest | 28.8 | 29.0 | 35.0 | 51.9 | 74.3 | 108.6 | 146.9 | 171.7 |
Cash paid for income taxes | 47.4 | 78.4 | 60.7 | 39.5 | 28.1 | 11.6 | 1.9 | 8.7 |