| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | S-1/A |
| Total revenues | 49.7 | 17.5 | 27.8 | 240.0 | 263.7 | 245.7 | |
| Total revenues growth | 184.1% | -37.0% | -88.4% | -9.0% | 7.3% | | |
| Cost of goods sold | 9.5 | 3.6 | 3.3 | 111.6 | 140.1 | 125.2 | |
| Gross profit | 40.3 | 13.9 | 24.5 | 128.4 | 123.6 | 120.6 | |
| Gross margin | 81.0% | 79.3% | 88.1% | 53.5% | 46.9% | 49.1% | |
| Selling, general and administrative expenses | 82.0 | 87.5 | 72.8 | 93.0 | 74.2 | 57.0 | |
| Research and development expenses | 4.0 | 6.9 | 13.4 | 32.3 | 43.7 | 42.7 | |
| Impairment of intangible assets | 13.3 | 7.9 | 28.9 | 283.7 | 17.9 | | |
| Total operating expenses | 99.3 | 214.7 | 115.1 | 409.1 | 222.2 | 172.6 | |
| Operating loss | -59.0 | -82.8 | -90.7 | -280.7 | -98.5 | -52.1 | |
| Operating margin | -118.6% | -472.9% | -326.5% | -116.9% | -37.4% | -21.2% | |
| Interest expense and amortization of debt discount | -3.1 | -3.0 | -4.1 | -18.2 | -20.8 | -29.1 | |
| Change in fair value of debt and interest expense | -2.9 | 1.0 | | | | | |
| Change in fair value of warrants | -1.3 | -5.6 | | | | | |
| Other non-operating income, net | -6.3 | 1.3 | 0.0 | -0.9 | -0.7 | 33.6 | |
| Loss before income taxes | -51.7 | -82.5 | -94.8 | -298.0 | -118.7 | -85.6 | |
| Income tax (benefit) expense | 0.0 | 0.3 | -5.8 | | | | |
| Net loss | -51.7 | -64.9 | -79.6 | -270.9 | -109.7 | -41.1 | |
| Change in fair value of debt due to change in credit risk, net of tax | -1.7 | 1.7 | | | | | |
| |
| Other comprehensive (loss) income | | | | | | | |
| Comprehensive loss | -53.4 | -61.0 | -79.6 | -271.3 | -110.9 | -42.0 | |
| |
| Loss per ordinary share: | | | | | | | |
| Loss per ordinary share, basic (in dollars per share) | ($0.58) | ($0.96) | ($1.31) | ($5.17) | ($2.42) | ($0.96) | |
| Loss per ordinary share, diluted ( in dollars per share) | ($0.58) | ($0.96) | ($1.31) | ($5.17) | ($2.42) | ($0.96) | |
| |
| Weighted average ordinary shares outstanding: | | | | | | | |
| Weighted average ordinary shares outstanding, basic (in shares) | 89.8 | 67.4 | 60.7 | 52.4 | 45.3 | 42.9 | |
| Weighted average ordinary shares outstanding, diluted (in shares) | 89.8 | 67.4 | 60.7 | 52.4 | 45.3 | | |