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Inventory | 12 Months Ended
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Dec. 31, 2024
Inventory Disclosure [Abstract] |
Inventory | 4. Inventory The Comp any’s inventory of EMPAVELI and SYFOVRE consisted of the following as of December 31, 2024 and 2023 (in thousands):
|  | December 31, |
|  | 2024 |  |  | 2023 |
Raw materials |  | $ | 54,385 |  |  | $ | 32,724 |
Semi-finished goods |  |  | 92,872 |  |  |  | 82,924 |
Finished goods |  |  | 9,860 |  |  |  | 30,714 |
Total inventories |  | $ | 157,117 |  |  | $ | 146,362 |
The Company's long-term inventory balance consists of raw materials and semi-finished goods that are not expected to be sold within the Company's normal operating cycle. Inventory amounts written down as a result of excess, obsolete, unmarketability or other reasons are charged to cost of sales. For the years ended December 31, 2024 and 2023, the Company recognized write-downs of $19.0 million and $6.4 million, respectively.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 330 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/330/tableOfContent + Details
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