Overview Financials News + Filings Key Docs Charts Ownership Insiders
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| 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 | 10-K |
| Assets |
| Cash and equivalents | 14.9 | 225.8 | 91.2 | 91.9 | 307.1 | 104.3 | 6.8 |
| Short-term investments | | | 85.1 | 191.4 | 97.0 | | |
| Other current assets | 5.3 | 4.0 | 5.2 | 6.0 | 10.4 | 0.7 | 0.1 |
| Total current assets | 20.2 | 229.8 | 181.5 | 289.3 | 414.4 | 105.0 | 6.9 |
| Property, plant, and equipment, net | 0.1 | 51.5 | 54.0 | 56.9 | 62.8 | 2.4 | 0.9 |
| Other fixed assets | | | 0.3 | 0.4 | 0.2 | | |
| Total assets | 23.1 | 318.0 | 277.8 | 394.8 | 479.1 | 107.7 | 8.0 |
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| Accounts payable | 1.2 | 11.6 | 5.5 | 7.2 | 7.9 | 2.0 | 1.2 |
| Accrued expenses | 5.6 | 14.1 | 13.4 | 16.0 | 12.1 | 3.0 | 0.7 |
| Current portion of long-term debt | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.1 | 0.9 |
| Current portion of long-term debt | | | | | | 2.1 | 0.9 |
| Other current liabilities | 1.1 | 9.0 | 8.9 | 10.5 | | | |
| Total current liabilities | 7.9 | 34.7 | 27.8 | 33.8 | 20.0 | 7.2 | 2.9 |
| Long-term debt | | 76.2 | 74.9 | 49.6 | 65.8 | 3.3 | |
| Other liabilities | | 28.4 | 33.5 | 37.3 | 0.3 | 1.1 | 3.2 |
| Total liabilities | 7.9 | 139.2 | 136.2 | 120.6 | 86.1 | 11.6 | 6.0 |
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| Shareholders' equity [+] | 15.1 | 178.8 | 141.6 | 274.2 | 393.0 | 96.1 | 1.9 |
| Paid-in capital | 871.7 | 855.7 | 621.9 | 586.8 | 543.0 | 17.3 | |
| Retained earnings | -856.7 | -677.0 | -480.5 | -312.7 | -150.1 | -61.0 | -17.1 |
| Tangible shareholders' equity | 15.1 | 178.8 | 141.6 | 274.2 | 393.0 | 96.1 | 1.9 |
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