| In millions, except per share items | Jun-30-23 | Mar-31-23 | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 |
| | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q |
| REVENUE | 120.6 | 126.0 | 134.3 | 143.8 | 131.2 | 128.8 | 140.8 | 120.2 |
| REVENUE growth | -8.1% | -2.2% | -4.6% | 19.7% | 11.5% | 14.8% | 33.9% | 39.1% |
| COST OF REVENUE | 47.6 | 54.2 | 54.1 | 63.5 | 55.3 | 64.8 | 62.4 | 50.3 |
| Gross profit | 73.0 | 71.8 | 80.2 | 80.3 | 75.8 | 64.0 | 78.4 | 69.9 |
| Gross margin | 60.6% | 57.0% | 59.7% | 55.9% | 57.8% | 49.7% | 55.7% | 58.2% |
| |
| OPERATING EXPENSES: | | | | | | | | |
| General and administrative | 69.4 | 69.2 | 80.2 | 74.2 | 79.6 | 85.5 | 78.6 | 68.2 |
| Advertising and marketing | 17.6 | 15.4 | 21.7 | 15.3 | 16.4 | 13.4 | 26.8 | 17.1 |
| Total operating expenses | 87.0 | 84.6 | 101.9 | 89.5 | 96.0 | 98.9 | 105.5 | 85.3 |
| LOSS FROM OPERATIONS | -14.0 | -12.8 | -21.7 | -9.1 | -20.1 | -34.8 | -27.1 | -15.4 |
| Operating margin | -11.6% | -10.2% | -16.2% | -6.4% | -15.4% | -27.0% | -19.2% | -12.8% |
| INTEREST INCOME (EXPENSE)—NET | -0.8 | -0.4 | -1.3 | -1.3 | -1.4 | -1.3 | -1.3 | -1.3 |
| OTHER INCOME—NET | 1.6 | -1.0 | 1.7 | 0.7 | 6.1 | -0.5 | 15.1 | 23.2 |
| NET LOSS BEFORE INCOME TAXES | -11.7 | -14.2 | -21.3 | -10.6 | -15.4 | -36.7 | -13.2 | 6.5 |
| NET LOSS AND COMPREHENSIVE LOSS | -11.7 | -14.2 | -21.3 | -10.6 | -15.4 | -36.7 | -13.2 | 6.5 |
| NET LOSS AND COMPREHENSIVE LOSS | -11.7 | -14.2 | -21.3 | -10.6 | -15.4 | -36.7 | -13.2 | 6.5 |
| |
| Net loss per common share attributable to common stockholders—basic | ($0.07) | ($0.08) | ($0.12) | ($0.06) | ($0.09) | ($0.23) | ($0.08) | $0.04 |
| Net loss per common share attributable to common stockholders—diluted | ($0.07) | ($0.08) | ($0.12) | ($0.06) | ($0.09) | ($0.23) | ($0.08) | $0.04 |
| |
| Weighted average common shares used to compute net loss per share attributable to common stockholders—basic | 177.7 | 176.7 | 177.7 | 176.5 | 175.5 | 156.2 | 172.6 | 169.2 |
| Weighted average common shares used to compute net loss per share attributable to common stockholders—diluted | 177.7 | 176.7 | 177.7 | 176.5 | 175.5 | 156.2 | 172.6 | 177.0 |