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Inventories | 3 Months Ended
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Mar. 31, 2023
Inventories |
Inventories | Note 10. Inventories ​ Inventories consist of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | December 31, |
​ | ​ | 2023 | ​ | 2022 |
​ | ​ | (in thousands) |
Raw materials and supplies |  | $ | 47,919 |  | $ | 47,607 | ​
Work in process | ​ |  | 30,873 | ​ |  | 37,090 | ​
Finished goods | ​ |  | 24,855 | ​ |  | 18,887 | ​
Total inventories | ​ | $ | 103,647 | ​ | $ | 103,584 | ​
​ Charges of $1.9 million and $8.0 million were included in the cost of revenues in the Company’s condensed consolidated statements of operations for the three months ended March 31, 2023 and 2022, respectively, to adjust the Company’s inventory and related firm purchase commitments to their net realizable value. ​ Losses on firm purchase commitments related to raw materials on order as of March 31, 2023 and December 31, 2022 were $1.3 million and $2.7 million, respectively, which are recorded in cost of revenues in the Company’s condensed consolidated statement of operations.

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI https://asc.fasb.org/topic&trid=2126998 + Details
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