| 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/A | 10-Q | 10-K | 10-Q | 10-Q/A | 10-Q |
| Net income | -3.9 | -3.3 | -8.1 | -2.2 | -0.6 | 1.6 | -1.4 | 0.8 |
| Depreciation and amortization | 9.1 | 9.0 | 9.1 | 7.9 | 9.0 | 6.3 | 7.0 | 6.3 |
| Stock-based compensation | 6.3 | 6.4 | 5.1 | 4.1 | 3.9 | 4.2 | 3.7 | 3.2 |
| Tax benefit from stock-based compensation | 0.3 | -0.1 | -0.1 | -0.1 | -0.3 | 0.0 | | 0.0 |
| Change in working capital [+] | -23.8 | -3.0 | 1.6 | 0.1 | -17.3 | 2.2 | -0.6 | 2.2 |
| Accounts receivable | -21.8 | -0.1 | -1.6 | -2.5 | -16.4 | 3.1 | -0.1 | 2.4 |
| Other current assets | -1.3 | -2.6 | -3.2 | 0.5 | -5.5 | -3.0 | -0.1 | -2.2 |
| Other | -0.8 | -0.4 | 6.4 | 2.1 | 4.6 | 2.0 | -0.4 | 2.0 |
| Other operating activities | 18.5 | -3.4 | -3.8 | 5.7 | 4.3 | 1.1 | 1.2 | -1.1 |
| Cash from operations | 6.4 | 5.6 | 3.9 | 15.6 | -0.9 | 15.4 | 9.9 | 11.4 |
| |
| Capital expenditures | -5.5 | -5.1 | -3.0 | -2.3 | -2.3 | -1.4 | -4.3 | -6.5 |
| Purchases of property and equipment | -5.5 | -5.1 | -3.0 | -2.3 | -2.3 | -1.4 | -4.3 | -6.5 |
| Purchases of intangible assets | | -1.2 | -0.5 | -0.2 | | | | |
| Acquisitions | | -34.5 | -12.0 | -0.1 | -124.1 | | | -13.4 |
| Other cash from investing | 0.2 | 0.6 | 11.3 | -11.3 | 0.2 | | | |
| Cash from investing | -5.2 | -40.1 | -4.2 | -13.9 | -126.2 | -1.4 | -4.1 | -19.9 |
| |
| Option exercises | 6.2 | 8.4 | 4.6 | 3.4 | 5.1 | 12.3 | 3.8 | 2.3 |
| Financing costs | 0.0 | -0.8 | -0.7 | | | | | |
| Other cash from financing | 11.1 | 5.4 | 6.8 | | 9.6 | | | |
| Cash from financing | 4.9 | -2.1 | 2.9 | 2.1 | 4.5 | 4.5 | 2.9 | 0.8 |
| |
| Free cash flow | 0.9 | 0.5 | 0.9 | 13.2 | -3.2 | 14.0 | 5.6 | 4.9 |
| Per share (diluted) | $0.02 | $0.01 | $0.02 | $0.33 | ($0.08) | $0.34 | $0.14 | $0.12 |
| |
| Cash paid for interest | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Cash paid for income taxes | -0.8 | 0.3 | 0.3 | -0.2 | 0.6 | 1.9 | 0.4 | 0.9 |