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 | 10-Q | 10-K | 10-Q | 10-Q | 10-Q |
Revenue: | | | | | | | | |
Subscription | 37.1 | 36.2 | 35.4 | | 34.8 | 23.0 | 11.5 | |
Services | 13.7 | 11.9 | 10.2 | | 9.2 | 6.0 | 2.9 | |
Usage | 11.2 | 10.6 | 9.9 | | 9.1 | 7.1 | 3.9 | |
Total revenue | 62.1 | 58.7 | 55.5 | | 53.1 | 36.1 | 18.2 | |
Total revenue growth | 17.0% | 62.7% | 204.6% | 9.6% | -15.9% | -41.6% | 22.6% | 63.8% |
Cost of revenue: | | | | | | | | |
Cost of subscription and usage | 10.3 | 9.9 | 9.6 | | 9.3 | 6.2 | 3.1 | |
Cost of services | 13.5 | 12.1 | 10.9 | | 9.9 | 6.7 | 3.3 | |
Total cost of revenue | 23.8 | 22.0 | 20.4 | | 19.2 | 12.9 | 6.4 | |
Gross profit | 38.3 | 36.7 | 35.1 | | 33.8 | 23.2 | 11.8 | |
Gross margin | 61.7% | 62.5% | 63.2% | | 63.7% | 64.2% | 64.8% | |
|
Operating expenses: | | | | | | | | |
Sales and marketing | 19.4 | 18.9 | 17.7 | | 17.1 | 11.0 | 5.9 | |
Research and development | 8.0 | 8.0 | 8.0 | | 8.0 | 5.4 | 2.6 | |
General and administrative | 7.3 | 6.5 | 5.8 | | 5.0 | 3.2 | 1.6 | |
Amortization of other intangibles | 0.8 | 0.7 | 0.6 | | 0.6 | 0.4 | 0.2 | |
Total operating expenses | 35.4 | 34.1 | 32.1 | | 30.8 | 20.0 | 10.3 | |
Income (loss) from operations | 2.9 | 2.6 | 3.0 | | 3.0 | 2.5 | 0.8 | |
Operating margin | 4.7% | 4.4% | 5.4% | | 5.7% | 6.8% | 4.3% | |
Interest income | 0.1 | 0.1 | 0.1 | | 0.1 | 0.0 | 0.0 | |
Interest expense | | | | | -0.1 | -0.1 | -0.1 | |
Other income (expense) | 0.0 | 0.1 | | | 0.5 | | -0.3 | |
Income before income taxes | 3.0 | 2.7 | 3.1 | | 3.5 | 1.7 | 0.0 | |
Provision (benefit) for income taxes | -12.0 | 0.2 | 0.2 | | 0.3 | 0.4 | 0.2 | |
Net income | 14.9 | 2.5 | 2.9 | | 3.3 | 1.1 | -0.4 | |
|
Net income attributable to common stockholders (note 2) | | | | | | | | |
Basic | 14.9 | 2.7 | 3.0 | | 3.2 | 0.9 | -0.6 | |
Diluted | 14.9 | 2.7 | 3.0 | | 3.2 | 0.9 | -0.6 | |
|
Net income (loss) per share attributable to common stockholders (note 2): | | | | | | | | |
Basic | $0.82 | $0.13 | $0.16 | | | ($0.09) | ($0.18) | |
Diluted | $0.77 | $0.13 | $0.15 | | | ($0.11) | ($0.19) | |
|
Weighted average shares used in computing net income per share attributable to common stockholders [Abstract] | | | | | | | | |
Basic | 13.6 | 12.6 | 12.4 | | 11.4 | 7.9 | 3.5 | |
Diluted | 14.7 | 14.2 | 14.0 | | 13.5 | 9.1 | 4.4 | |