| In millions, except per share items | Dec-31-13 | Dec-31-12 | Dec-31-11 | Dec-31-10 | Dec-31-09 | Dec-31-08 | Dec-31-07 | Dec-31-06 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Net income | 7.3 | -32.6 | -24.8 | -3.3 | -18.8 | -56.5 | 1.2 | 3.0 |
| Depreciation and amortization [+] | 2.1 | 8.3 | 14.1 | 8.1 | 6.7 | 3.0 | 3.3 | 3.9 |
| Depreciation | 2.1 | 3.0 | 3.5 | 3.5 | 3.3 | 2.2 | 2.0 | 2.0 |
| Amortization of intangible assets | | 5.3 | 10.6 | 4.7 | 3.4 | 0.7 | 1.3 | 1.9 |
| Stock-based compensation | 2.4 | 3.0 | 1.9 | 1.3 | 2.4 | 3.3 | 4.4 | 4.9 |
| Tax benefit from stock-based compensation | | | | | | 0.1 | | |
| Change in working capital [+] | -7.6 | 0.6 | 6.2 | -8.2 | -2.7 | 3.5 | -3.6 | -8.7 |
| Accounts receivable | -2.2 | 0.4 | 2.5 | -3.9 | -1.9 | 4.8 | -2.0 | -2.3 |
| Inventories | -0.4 | -4.0 | 2.8 | -3.8 | -0.2 | -0.5 | 0.1 | -4.8 |
| Other current assets | -0.9 | 0.0 | 2.8 | -1.1 | 2.3 | | | |
| Accounts payable | -4.2 | 3.6 | -1.6 | -0.6 | -0.7 | -0.4 | 1.5 | -1.5 |
| Other | 0.2 | 0.5 | -0.2 | 1.3 | -2.3 | -0.3 | | |
| Other operating activities | 0.1 | 8.3 | -0.1 | 1.6 | 4.0 | 54.2 | 0.4 | -0.2 |
| Cash from operations | 4.3 | -12.4 | -2.7 | -0.5 | -8.4 | 7.5 | 5.8 | 2.9 |
| |
| Capital expenditures [+] | -1.1 | -2.6 | -3.0 | -3.4 | -1.2 | -1.8 | -3.1 | -1.2 |
| Purchases of property and equipment | -1.1 | -2.6 | -3.0 | -3.4 | -1.2 | -1.8 | -3.1 | -1.2 |
| Sales of property and equipment | | | | 0.0 | 0.0 | | | |
| Acquisitions | | | | -0.8 | | | | |
| Sales of short-term investments, net [+] | -7.4 | 5.5 | 10.0 | 10.7 | 11.2 | -12.5 | -17.6 | 4.7 |
| Purchases of short-term investments | -14.4 | -5.6 | -6.3 | -34.8 | -34.3 | -48.4 | -34.7 | -13.7 |
| Sales of short-term investments | 7.0 | 11.1 | 16.2 | 45.5 | 45.5 | 35.9 | 17.1 | 18.4 |
| Other cash from investing | 2.0 | 10.4 | 0.5 | | 4.4 | | | |
| Cash from investing | -6.5 | 13.4 | 7.5 | 6.5 | 14.4 | -14.2 | -20.7 | 3.5 |
| |
| Repurchase of common stock, net | | | | | | -6.5 | | |
| Option exercises | 1.9 | 1.2 | 0.4 | 0.2 | 0.0 | | | |
| Other cash from financing | 0.4 | 3.0 | 1.8 | -11.2 | -1.5 | 0.9 | | |
| Cash from financing | -1.4 | 1.7 | 1.5 | -11.5 | -1.6 | -5.6 | 1.3 | 5.4 |
| |
| Free cash flow | 3.2 | -15.0 | -5.6 | -3.9 | -9.6 | 5.8 | 2.7 | 1.7 |
| Per share (diluted) | $0.07 | ($0.33) | ($0.12) | ($0.10) | ($0.27) | $0.20 | $0.09 | $0.06 |
| |
| Cash paid for interest | 0.2 | 0.3 | 0.1 | 1.3 | 0.4 | | | |