| In millions, except per share items | Sep-30-14 | Jun-30-14 | Mar-31-14 | Dec-31-13 | Sep-30-13 | Jun-30-13 | Mar-31-13 | Dec-31-12 |
| | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K |
| Revenue | 88.8 | 87.4 | 97.8 | 101.2 | 87.3 | 90.2 | 111.0 | 98.1 |
| Revenue growth | 1.8% | -3.1% | -11.9% | 3.2% | 0.2% | -0.7% | 8.4% | -12.4% |
| Costs and expenses (exclusive of depreciation and amortization expense shown separately below): | | | | | | | | |
| Direct cost of services | 18.3 | 16.8 | 18.2 | 18.2 | 16.2 | 17.1 | 22.0 | 18.9 |
| Network and infrastructure | 13.8 | 13.9 | 14.1 | 15.0 | 14.6 | 14.3 | 15.1 | 14.2 |
| Sales and marketing | 25.1 | 24.2 | 24.3 | 26.5 | 25.0 | 25.9 | 29.5 | 23.2 |
| Product research and development | 18.3 | 18.7 | 18.3 | 19.4 | 18.1 | 17.6 | 17.2 | 15.9 |
| General and administrative | 10.7 | 12.3 | 12.3 | 12.2 | 12.0 | 13.7 | 18.3 | 18.7 |
| Goodwill impairment | | | | | | | 21.2 | |
| Depreciation and amortization | 6.6 | 6.5 | 6.4 | 6.3 | 5.7 | 5.1 | 5.0 | 5.0 |
| Amortization of acquisition-related intangibles | 2.0 | 2.2 | 2.2 | 2.2 | 2.1 | 2.3 | 1.9 | 1.2 |
| Total costs and expenses | 94.7 | 94.6 | 95.7 | 99.9 | 93.8 | 96.0 | 130.3 | 272.5 |
| Income (loss) from operations | -5.9 | -7.2 | 2.2 | 1.3 | -6.6 | -5.8 | -19.3 | -174.4 |
| Operating margin | -6.7% | -8.2% | 2.2% | 1.3% | -7.5% | -6.4% | -17.4% | -177.7% |
| Interest income | 0.5 | 0.6 | 0.6 | 0.5 | 0.6 | 0.8 | 0.6 | 0.9 |
| Interest expense | -0.9 | -0.9 | -1.6 | -1.9 | -1.9 | -2.0 | -2.0 | -2.2 |
| Other income (expense), net | 2.1 | 0.1 | -0.3 | -0.5 | -0.3 | 6.1 | 10.9 | 4.7 |
| Loss on extinguishment of debt | | | -5.6 | | | | | |
| Income (loss) from continuing operations before income taxes | -4.3 | -7.3 | -4.8 | -0.5 | -8.2 | -0.9 | -9.8 | -171.0 |
| Income tax expense (benefit) | -8.3 | 0.0 | 1.0 | -0.5 | -0.6 | -0.7 | 0.9 | 17.8 |
| Tax rate | 194.0% | 0.4% | | 92.1% | 7.8% | 77.1% | | |
| Income (loss) from continuing operations | 4.0 | -7.3 | -5.7 | 0.0 | -7.6 | -0.2 | -10.7 | -188.8 |
| Income (loss) from discontinued operations, net of tax | 0.1 | 0.0 | 0.1 | 0.1 | -4.9 | -0.7 | -0.7 | -11.3 |
| Net income (loss) | 4.2 | -7.2 | -5.6 | 0.1 | -12.5 | -0.9 | -11.4 | -200.1 |
| |
| Income (loss) per share - basic: | | | | | | | | |
| Income (loss) from continuing operations (in dollars per share) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Income (loss) from discontinued operations (in dollars per share) | | | 0.0 | | 0.0 | 0.0 | 0.0 | 0.0 |
| |
| Net income (loss) per share - basic (in dollars per share) | $0.14 | ($0.24) | ($0.18) | ($0.01) | ($0.40) | ($0.03) | ($0.35) | ($6.03) |
| |
| Income (loss) per share - diluted: | | | | | | | | |
| Income (loss) from continuing operations (in dollars per share) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Income (loss) from discontinued operations (in dollars per share) | 0.0 | | 0.0 | | 0.0 | 0.0 | 0.0 | 0.0 |
| Net income (loss) per share - diluted (in dollars per share) | $0.14 | ($0.24) | ($0.18) | ($0.01) | ($0.40) | ($0.03) | ($0.35) | ($6.03) |
| |
| Shares used in per-share calculation - basic (in shares) | 29.7 | 29.8 | 30.7 | 32.1 | 31.5 | 32.5 | 32.9 | 33.2 |
| Shares used in per-share calculation - diluted (in shares) | 30.1 | 29.8 | 30.7 | 32.1 | 31.5 | 32.5 | 32.9 | 33.2 |