| In millions, except per share items | Dec-31-11 | Sep-30-11 | Jun-30-11 | Mar-31-11 | Dec-31-10 | Sep-30-10 | Jun-30-10 | Mar-31-10 |
| | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q |
| Net income | 14.9 | 2.7 | 3.0 | 3.2 | 3.2 | 1.4 | 0.4 | -0.3 |
| Depreciation and amortization [+] | 4.6 | 4.1 | 3.5 | 3.1 | 3.2 | 3.6 | 4.1 | 4.5 |
| Depreciation | 3.5 | 3.4 | 2.2 | 2.1 | 2.1 | 1.6 | 1.1 | 2.3 |
| Amortization of intangible assets | 2.3 | 2.0 | 1.1 | 1.0 | 1.0 | 0.8 | 0.6 | 2.2 |
| Other amortization | 0.7 | 0.5 | 0.2 | | 0.1 | 0.0 | | |
| Stock-based compensation | 3.0 | 2.8 | 2.7 | 2.1 | 2.0 | 2.2 | 2.2 | 2.2 |
| Deferred taxes | -12.3 | | | | | | | |
| Change in working capital [+] | -1.6 | -0.9 | -2.3 | -0.9 | 0.4 | -0.2 | 0.8 | 0.0 |
| Accounts receivable | -1.3 | -1.4 | -3.1 | -1.8 | 1.0 | 0.0 | 0.3 | 2.0 |
| Other current assets | 0.1 | 0.8 | 0.6 | | 0.2 | -0.3 | | |
| Accounts payable | 0.8 | 0.4 | 1.2 | 0.7 | 0.0 | 0.2 | 0.1 | 0.1 |
| Accrued expenses | -0.1 | -0.5 | -0.4 | | 0.6 | 0.0 | | |
| Deferred revenues | -2.9 | -2.1 | -0.7 | | -1.4 | -1.0 | | |
| Other | | 1.8 | 0.0 | 0.8 | | | | |
| Other operating activities | | -0.4 | -0.3 | -0.4 | 0.2 | 0.9 | 1.0 | 1.3 |
| Cash from operations | 8.5 | 8.2 | 6.6 | 7.1 | 9.1 | 8.0 | 8.5 | 7.8 |
| |
| Capital expenditures [+] | -5.2 | -5.3 | -4.3 | -3.6 | -3.5 | -2.8 | -2.4 | -2.3 |
| Purchases of property and equipment | -3.0 | -3.3 | -2.7 | -2.5 | -2.6 | -2.2 | -1.9 | -2.1 |
| Capitalized product costs | -2.2 | -2.0 | -1.5 | -1.1 | -0.9 | -0.6 | -0.5 | -0.2 |
| Acquisitions | -11.2 | -11.2 | -4.4 | | | | | |
| Purchases of short-term investments, net | -1.9 | -11.0 | -49.7 | -48.1 | -46.9 | -32.6 | | |
| Purchases of short-term investments | -56.6 | -49.9 | -71.4 | -62.0 | -46.9 | -32.6 | | |
| Sales of short-term investments | 54.8 | 38.9 | 21.8 | 13.9 | | | | |
| Other cash from investing | 3.3 | 14.3 | 8.7 | 4.2 | 8.7 | -1.2 | | |
| Cash from investing | -14.9 | -13.1 | -49.7 | -47.5 | -41.7 | -36.7 | -2.4 | -2.3 |
| |
| Issuance of common stock, net | | | | | | | 35.9 | |
| Option exercises | 3.3 | 3.2 | 1.7 | | 0.7 | 0.2 | | |
| Other cash from financing | 5.4 | 5.2 | 3.2 | 0.0 | -0.8 | -2.1 | | |
| Cash from financing | 2.0 | 1.9 | 1.5 | 35.2 | 34.4 | 33.6 | 33.3 | -1.5 |
| |
| Free cash flow | 5.5 | 4.9 | 3.9 | 4.7 | 6.5 | 5.8 | 6.6 | 5.7 |
| Per share (diluted) | $0.22 | $0.21 | $0.17 | $0.26 | $0.42 | $0.47 | $0.63 | $1.03 |
| |
| Cash paid for interest | | | | | 0.1 | | | |
| Cash paid for income taxes | | 0.7 | 0.4 | | 0.3 | 0.2 | | |