| In millions, except per share items | Mar-31-12 | Dec-31-11 | Sep-30-11 | Jun-30-11 | Mar-31-11 | Dec-31-10 | Sep-30-10 | Jun-30-10 |
| | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q |
| Net income | -5.8 | -12.8 | -27.1 | -27.7 | -31.0 | -31.4 | -25.9 | -33.9 |
| Depreciation and amortization [+] | 6.7 | 6.0 | 7.1 | 6.8 | 5.8 | 6.3 | 13.7 | 16.4 |
| Depreciation | 7.3 | 6.5 | 7.7 | 7.3 | 6.8 | 4.1 | 11.9 | 14.5 |
| Stock-based compensation | 2.9 | 3.3 | 3.8 | 4.2 | 4.0 | 3.3 | 5.6 | 8.5 |
| Deferred taxes | | 0.0 | | | | -0.4 | | |
| Change in working capital [+] | 7.7 | 5.3 | 3.1 | -1.3 | -5.8 | -6.7 | -19.1 | -2.0 |
| Accounts receivable | 1.9 | 10.9 | 17.3 | 2.1 | -3.1 | -12.6 | -18.6 | 4.2 |
| Inventories | 0.4 | -2.3 | -3.0 | -2.3 | -4.2 | -3.1 | -2.6 | -3.4 |
| Other current assets | -1.1 | -0.9 | 0.0 | 0.8 | -1.5 | | | |
| Accounts payable | -2.0 | -3.3 | -1.6 | -0.4 | 2.8 | 1.9 | -1.6 | 1.4 |
| Accrued expenses | -3.4 | -7.3 | -8.0 | -1.5 | -1.6 | | | |
| Deferred revenues | 6.5 | 2.9 | -7.0 | -5.3 | 3.2 | | | |
| Other | | | | 5.3 | | | | |
| Other operating activities | -5.1 | -4.8 | 6.0 | 6.5 | 15.5 | 14.5 | 16.8 | -1.1 |
| Cash from operations | 6.5 | -3.0 | -7.6 | -11.9 | -11.8 | -14.4 | -8.7 | -11.9 |
| |
| Capital expenditures | -10.5 | -10.4 | -14.4 | -13.1 | -12.1 | -11.0 | -7.7 | -10.2 |
| Purchases of property and equipment | -10.5 | -10.4 | -14.4 | -13.1 | -12.1 | -11.0 | -7.7 | -10.2 |
| Sales of short-term investments, net [+] | | | | 52.3 | 42.7 | 5.9 | 4.9 | -4.1 |
| Purchases of short-term investments | | | | | | -26.0 | -28.3 | |
| Sales of short-term investments | | | | 69.2 | 59.6 | 31.9 | 33.3 | 29.7 |
| Cash from investing | -18.4 | 17.1 | 6.6 | 11.4 | 21.4 | -5.1 | -5.2 | -17.0 |
| |
| Issuance of common stock, net | 1.7 | 0.4 | | | | -0.3 | | |
| Other cash from financing | 1.6 | 1.4 | 16.5 | 11.8 | 11.9 | 11.5 | -25.8 | -21.9 |
| Cash from financing | 3.3 | 1.8 | 16.2 | 11.5 | 11.5 | 11.2 | 1.6 | 5.5 |
| |
| Free cash flow | -4.0 | -13.4 | -22.0 | -25.0 | -23.9 | -25.4 | -16.4 | -22.1 |
| |
| Cash paid for interest | 2.5 | 2.3 | 1.8 | 1.5 | 1.2 | | | |