| In millions, except per share items | Dec-31-11 | Dec-31-10 | Dec-31-09 | Dec-31-08 |
| | 10-K | 10-K | 10-K | 10-K |
| Net income | 62.9 | 36.8 | 21.3 | 2.4 |
| Depreciation and amortization [+] | 30.2 | 27.7 | 27.2 | 34.5 |
| Depreciation | 13.5 | 11.8 | 10.9 | 10.7 |
| Amortization of intangible assets | 16.7 | 15.9 | 16.2 | 23.8 |
| Stock-based compensation | 10.0 | 5.1 | 5.5 | 4.7 |
| Tax benefit from stock-based compensation | -26.0 | -12.9 | 0.0 | |
| Deferred taxes | -6.2 | 1.0 | -4.8 | 1.7 |
| Change in working capital [+] | 55.0 | 38.1 | 11.6 | 3.4 |
| Restricted cash | 0.8 | -0.3 | 4.4 | |
| Accounts receivable | -0.6 | -0.4 | -0.7 | -0.4 |
| Deferred revenues | 19.3 | 17.1 | 8.5 | |
| Income taxes | 33.6 | 7.5 | 1.5 | |
| Other | 1.9 | 14.2 | -2.0 | 3.8 |
| Other operating activities | 5.2 | 10.1 | 6.8 | 8.6 |
| Cash from operations | 131.0 | 105.9 | 67.6 | 55.2 |
| |
| Capital expenditures | -13.9 | -13.0 | -13.4 | -11.6 |
| Purchases of property and equipment | -13.9 | -13.0 | -13.4 | -11.6 |
| Acquisitions | | -14.6 | | |
| Purchases of short-term investments, net | | 33.4 | -33.4 | |
| Purchases of short-term investments | | -7.2 | -33.4 | |
| Sales of short-term investments | | 40.6 | | |
| Other cash from investing | -20.4 | -13.9 | -9.4 | -8.6 |
| Cash from investing | -34.3 | -8.1 | -56.1 | -20.2 |
| |
| Repurchase of common stock, net | -162.2 | -25.0 | 47.7 | -0.5 |
| Option exercises | 13.9 | 13.5 | 0.6 | |
| Financing costs | | -0.7 | | |
| Other cash from financing | 62.7 | -61.5 | -31.7 | -6.3 |
| Cash from financing | -113.3 | -99.3 | 15.3 | -6.8 |
| |
| Free cash flow | 117.1 | 93.0 | 54.2 | 43.6 |
| Per share (diluted) | $2.41 | $1.91 | $1.31 | $1.13 |
| |
| Cash paid for interest | 0.5 | 2.6 | 7.7 | |