| In millions, except per share items | Sep-30-16 | Jun-30-16 | Mar-31-16 | Dec-31-15 | Sep-30-15 | Jun-30-15 | Mar-31-15 | Dec-31-14 |
| | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K |
| Net income | -6.9 | -7.4 | -2.2 | -3.8 | -5.7 | -7.3 | -6.0 | -5.6 |
| Depreciation and amortization [+] | 7.1 | 6.6 | 6.5 | 5.7 | 5.6 | 5.3 | 5.4 | 5.2 |
| Depreciation | 3.5 | 3.4 | 3.1 | 2.8 | 2.7 | 2.5 | 2.4 | 2.3 |
| Amortization of intangible assets | 1.3 | 1.2 | 1.3 | 1.2 | 1.2 | 1.2 | 1.4 | 1.3 |
| Other amortization | 2.2 | 1.9 | 2.1 | 1.7 | 1.7 | 1.5 | 1.7 | 1.5 |
| Stock-based compensation | 2.3 | 2.0 | 2.5 | 2.3 | 2.3 | 1.6 | 2.6 | 1.4 |
| Deferred taxes | 0.1 | 0.1 | -2.6 | -0.6 | | | | |
| Change in working capital [+] | -10.4 | 9.6 | 7.7 | 5.7 | -7.5 | 4.4 | -2.3 | -1.8 |
| Accounts receivable | -3.6 | 0.7 | -0.8 | 2.4 | -9.3 | 0.1 | -2.4 | -4.9 |
| Other current assets | -2.5 | 1.3 | -0.3 | -0.1 | -0.7 | -0.3 | -1.1 | 0.5 |
| Accounts payable | -2.4 | 3.2 | 0.8 | -1.9 | 1.3 | 1.4 | -0.2 | -0.6 |
| Accrued expenses | -3.9 | 3.0 | -0.2 | -1.3 | -0.2 | 3.0 | -1.8 | 3.5 |
| Deferred revenues | 0.7 | 0.7 | 2.5 | -0.8 | 1.1 | -0.1 | 3.2 | 2.6 |
| Income taxes | | | | | | | | -3.5 |
| Other | 1.2 | 0.8 | 5.6 | 7.3 | 0.3 | 0.3 | 0.0 | 0.6 |
| Other operating activities | 0.8 | 1.6 | 1.5 | -5.4 | 1.1 | 1.3 | 0.2 | 3.4 |
| Cash from operations | -7.0 | 12.6 | 13.3 | 3.9 | -4.2 | 5.3 | -0.1 | 2.5 |
| |
| Capital expenditures [+] | -6.8 | -7.8 | -13.2 | -7.0 | -5.0 | -6.5 | -6.1 | -5.3 |
| Purchases of property and equipment | -3.0 | -4.5 | -9.4 | -4.3 | -2.0 | -4.2 | -3.9 | -2.4 |
| Capitalized product costs | -3.8 | -3.3 | -3.8 | -2.6 | -3.0 | -2.3 | -2.1 | -3.0 |
| Acquisitions | | | -18.4 | | | | | -1.1 |
| Sales of short-term investments, net [+] | 32.6 | 45.0 | 26.7 | 0.5 | -13.0 | -63.1 | | |
| Purchases of short-term investments | | -15.0 | -15.9 | -23.2 | -25.8 | -64.1 | | |
| Sales of short-term investments | 32.6 | 60.0 | 42.6 | 23.7 | 12.7 | 1.0 | | |
| Other cash from investing | -16.3 | -30.0 | -21.7 | | | 0.0 | | |
| Cash from investing | 9.5 | 7.2 | -26.6 | -6.4 | -18.0 | -69.7 | -6.1 | -6.4 |
| |
| Repurchase of common stock, net | -0.4 | -0.5 | -0.5 | -0.5 | -0.1 | -0.3 | -0.2 | -0.4 |
| Option exercises | 0.8 | 1.8 | 0.8 | 0.6 | 0.3 | 0.0 | 2.3 | 0.3 |
| Financing costs | | | | | | | | 0.0 |
| Other cash from financing | 1.6 | 4.1 | 1.9 | 1.5 | 1.1 | 0.4 | 93.4 | 5.9 |
| Cash from financing | 0.4 | 1.8 | 0.6 | 0.4 | 0.6 | 0.1 | 90.9 | 5.2 |
| |
| Free cash flow | -10.0 | 8.1 | 3.9 | -0.4 | -6.2 | 1.0 | -4.0 | 0.2 |
| Per share (diluted) | ($0.22) | $0.08 | $0.00 | ($0.05) | ($0.15) | ($0.02) | ($0.10) | ($0.05) |
| |