| 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-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q |
| Net sales | 390.7 | 376.7 | 365.9 | 345.6 | 325.0 | 288.0 | 260.1 | 220.1 |
| Net sales growth | 20.2% | 30.8% | 40.7% | 57.1% | 74.3% | 114.7% | 200.5% | |
| Cost of sales | 142.0 | 125.8 | 118.2 | 106.4 | 101.2 | 87.0 | 78.3 | 72.0 |
| Gross profit | 248.7 | 250.9 | 247.7 | 239.3 | 223.8 | 201.0 | 181.8 | 148.1 |
| Gross margin | 63.7% | 66.6% | 67.7% | 69.2% | 68.9% | 69.8% | 69.9% | 67.3% |
| |
| Operating expenses: | | | | | | | | |
| Selling and marketing | 160.5 | 162.4 | 160.1 | 158.1 | 148.8 | 130.1 | 110.8 | 89.7 |
| Research and development | 8.8 | 8.6 | 8.4 | 8.9 | 8.6 | 9.0 | 8.2 | 7.2 |
| General and administrative | 117.7 | 110.2 | 106.1 | 102.7 | 98.1 | 114.9 | 99.5 | 85.4 |
| Total operating expenses | 287.1 | 281.1 | 274.6 | 269.7 | 255.5 | 254.0 | 218.5 | 182.2 |
| Loss from operations | -38.4 | -30.2 | -26.9 | -30.4 | -31.7 | -53.0 | -36.6 | -34.1 |
| Operating margin | -9.8% | -8.0% | -7.4% | -8.8% | -9.8% | -18.4% | -14.1% | -15.5% |
| Interest expense, net | -6.8 | -6.6 | | | -6.6 | -3.4 | | |
| Interest income | -10.0 | -5.1 | | | -0.7 | 0.0 | | |
| Other (income) expense, net | 1.9 | 1.0 | 2.4 | -2.3 | 0.2 | 5.4 | 4.5 | 4.4 |
| Change in fair value of warrant liabilities | -13.6 | -17.2 | -78.3 | -65.5 | 138.1 | 225.3 | 277.3 | 271.3 |
| Foreign currency transaction (gain) loss, net | 1.8 | 4.4 | 3.2 | 1.2 | 1.7 | -0.6 | 0.1 | 0.5 |
| Income (loss) before provision for income taxes | -22.9 | -17.7 | 42.4 | 23.5 | -192.1 | -339.7 | -377.4 | -371.6 |
| Income tax (benefit) expense | -7.9 | -5.6 | 0.6 | 2.9 | 2.6 | 0.7 | -2.2 | -6.4 |
| Net income (loss) | -15.0 | -12.0 | 41.7 | 20.6 | -194.7 | -340.4 | -375.1 | -365.3 |
| |
| Comprehensive income (loss), net of tax: | | | | | | | | |
| Foreign currency translation adjustments | 1.1 | -2.2 | -3.3 | -5.1 | -5.1 | -1.6 | -1.5 | -1.8 |
| Comprehensive income (loss) | -13.9 | -14.3 | 38.4 | 15.4 | -199.7 | -342.0 | -376.6 | -367.0 |
| |
| Net income (loss) per share | | | | | | | | |
| Basic (in dollars per share) | ($0.11) | ($0.10) | $0.28 | | ($0.95) | ($2.51) | ($2.81) | ($3.45) |
| Diluted (in dollars per share) | ($0.20) | ($0.29) | ($0.25) | $0.21 | ($1.39) | ($2.85) | ($2.81) | ($3.45) |
| |
| Weighted average common shares outstanding | | | | | | | | |
| Basic (in shares) | 140.9 | 145.4 | 149.9 | 138.6 | 133.9 | 119.2 | 90.4 | 73.5 |
| Diluted (in shares) | 141.3 | 146.0 | 151.1 | 139.5 | 134.7 | 119.7 | 90.4 | 73.5 |