| In millions, except per share items | Jun-30-23 | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Jun-30-21 |
| | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q |
| Revenue: | | | | | | | | |
| Total revenue | 185.0 | 187.1 | 179.4 | 176.0 | 176.9 | 186.7 | 181.3 | 176.8 |
| Total revenue growth | 5.1% | 0.2% | -1.0% | -0.4% | 1.7% | 0.6% | -1.9% | -28.1% |
| Cost of revenue: | | | | | | | | |
| Cost of recurring revenue | 18.5 | 18.0 | 16.6 | 15.5 | 17.8 | 17.7 | 17.9 | 15.7 |
| Amortization of acquired technologies | 12.1 | 12.9 | 13.0 | 13.1 | 13.2 | 13.6 | 13.8 | 13.9 |
| Total cost of revenue | 22.0 | 21.6 | 20.2 | 19.1 | 35.1 | 57.3 | 57.8 | 55.8 |
| Gross profit | 163.1 | 165.4 | 159.2 | 156.9 | 141.8 | 129.4 | 123.4 | 121.0 |
| Gross margin | 88.1% | 88.4% | 88.7% | 89.1% | 80.2% | 69.3% | 68.1% | 68.4% |
| |
| Operating expenses: | | | | | | | | |
| Sales and marketing | 59.8 | 67.3 | 64.8 | 64.6 | 61.0 | 62.0 | 58.6 | 58.1 |
| Research and development | 24.1 | 24.2 | 22.6 | 22.1 | 23.4 | 23.3 | 26.3 | 25.8 |
| General and administrative | 34.4 | 33.0 | 42.6 | 41.3 | 32.7 | 40.8 | 28.6 | 30.7 |
| Amortization of acquired intangibles | 12.1 | 12.9 | 13.0 | 13.1 | 13.2 | 13.6 | 13.8 | 13.9 |
| Goodwill impairment | | | 278.7 | 612.4 | | | | |
| Total operating expenses | 130.4 | 137.4 | 421.7 | 753.5 | 130.4 | 139.8 | 127.3 | 128.5 |
| Operating income (loss) | 32.6 | 28.0 | -262.5 | -596.6 | 11.4 | -10.4 | -3.8 | -7.5 |
| Operating margin | 17.6% | 15.0% | -146.3% | -338.9% | 6.5% | -5.5% | -2.1% | -4.3% |
| |
| Other income (expense): | | | | | | | | |
| Interest expense, net | -29.4 | -25.7 | -23.2 | -18.4 | -16.1 | -16.3 | -15.9 | -16.2 |
| Other income (expense), net | 0.0 | -3.2 | -2.4 | 0.7 | -0.2 | -1.4 | 1.5 | -0.3 |
| Total other expense | -29.4 | -28.9 | -25.6 | -17.7 | -16.3 | -17.7 | -14.4 | -16.5 |
| Income (loss) before income taxes | 3.2 | -0.9 | -288.1 | -614.3 | -4.8 | -28.0 | -18.2 | -24.0 |
| Income tax expense | 3.0 | 9.5 | 4.1 | 7.9 | -0.2 | -6.1 | -19.3 | -2.1 |
| Net income (loss) | 0.3 | -10.4 | -292.2 | -622.1 | -4.7 | -23.6 | -9.0 | -11.6 |
| |
| Net income (loss) available to common stockholders | | ($0.06) | ($1.81) | ($3.87) | ($0.03) | ($0.15) | ($0.06) | ($0.07) |
| Net income (loss) available to common stockholders | 0.3 | | | -622.1 | | | | |
| |
| Net income (loss) available to common stockholders per share: | | | | | | | | |
| Basic income (loss) per share (in dollars per share) | | ($0.06) | ($1.81) | ($3.87) | ($0.03) | ($0.15) | ($0.06) | ($0.07) |
| Diluted income (loss) per share (in dollars per share) | | ($0.06) | ($1.81) | ($3.87) | ($0.03) | ($0.15) | ($0.06) | ($0.07) |
| |
| Weighted-average shares used to compute net income (loss) available to common stockholders per share: | | | | | | | | |
| Shares used in computation of basic income (loss) per share (in shares) | 164.2 | 160.8 | 161.1 | 160.7 | 159.8 | 158.0 | 158.2 | 157.9 |
| Shares used in computation of diluted income (loss) per share (in shares) | 165.4 | 160.8 | 161.1 | 160.7 | 159.8 | 158.0 | 160.3 | 157.9 |