| In millions, except per share items | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Jun-30-21 | Mar-31-21 | Dec-31-20 | Sep-30-20 |
| | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q |
| Revenue: | | | | | | | | |
| Total revenue | 308.3 | 315.2 | 299.4 | 287.3 | 271.0 | 251.1 | 243.6 | 248.6 |
| Total revenue growth | 13.8% | 25.5% | 22.9% | 15.6% | 8.2% | -1.1% | 0.3% | 6.2% |
| Cost of revenue: | | | | | | | | |
| Cost of revenue (exclusive of amortization shown below) | | | | | | | | |
| Amortization expense | 32.3 | 29.7 | 26.9 | 24.2 | 22.6 | 21.5 | 20.3 | 19.1 |
| Total cost of revenue | 110.1 | 102.7 | 94.9 | 86.2 | 79.0 | 73.3 | 68.2 | 65.6 |
| Gross profit | 198.2 | 212.5 | 204.6 | 201.1 | 192.0 | 177.8 | 175.4 | 182.9 |
| Gross margin | 64.3% | 67.4% | 68.3% | 70.0% | 70.8% | 70.8% | 72.0% | 73.6% |
| |
| Operating expenses: | | | | | | | | |
| Sales and marketing | 130.5 | 122.9 | 117.5 | 109.8 | 100.6 | 92.3 | 88.9 | 87.8 |
| Research and development | 80.7 | 77.3 | 78.5 | 72.0 | 65.7 | 58.4 | 48.9 | 48.3 |
| General and administrative | 73.7 | 73.4 | 71.6 | 64.2 | 57.6 | 50.1 | 47.2 | 45.8 |
| Depreciation and amortization | 17.6 | 17.5 | 17.4 | 17.3 | 17.2 | 17.1 | 17.0 | 17.0 |
| Total operating expenses | 301.0 | 289.5 | 283.6 | 263.3 | 241.1 | 217.9 | 202.0 | 198.9 |
| Loss from operations | -102.9 | -77.1 | -79.0 | -62.2 | -49.1 | -40.1 | -26.7 | -16.0 |
| Operating margin | -33.4% | -24.5% | -26.4% | -21.7% | -18.1% | -16.0% | -10.9% | -6.4% |
| |
| Other income (expense): | | | | | | | | |
| Interest expense | -9.8 | -6.3 | -3.0 | -1.8 | -1.9 | -2.3 | -2.4 | -2.7 |
| Other income (expense), net | -4.4 | -1.1 | -1.1 | 1.0 | 3.1 | 3.3 | 2.9 | 1.8 |
| Total other income (expense) | -14.3 | -7.5 | -4.3 | -0.8 | 1.2 | 1.0 | 0.5 | -2.2 |
| Loss before income taxes | -117.2 | -84.6 | -83.3 | -63.0 | -47.9 | -39.1 | -26.1 | -18.2 |
| Benefit (provision) for income taxes | 11.6 | 15.9 | 18.9 | 21.3 | 16.7 | 15.6 | 14.3 | 11.9 |
| Net loss | -105.6 | -68.7 | -64.4 | -41.8 | -31.2 | -23.5 | -11.9 | -6.3 |
| |
| Net loss per share: | | | | | | | | |
| Basic (in dollars per share) | ($1.25) | ($0.82) | ($0.78) | ($0.51) | ($0.38) | ($0.29) | ($0.14) | ($0.06) |
| Diluted (in dollars per share) | ($1.25) | ($0.82) | ($0.78) | ($0.51) | ($0.38) | ($0.29) | ($0.14) | ($0.06) |
| |
| Weighted-average shares used in computing net loss per share: | | | | | | | | |
| Basic (in shares) | 83.4 | 82.6 | 82.0 | 81.5 | 81.1 | 80.7 | 80.3 | 77.4 |
| Diluted (in shares) | 83.4 | 82.6 | 82.0 | 81.5 | 81.1 | 80.7 | 80.3 | 77.4 |