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Inventories | 9 Months Ended
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Sep. 30, 2020
Inventories [Abstract] |
Inventories | 6. INVENTORIES Inventories are carried at the lower of cost or net realizable value, except grain held for sale and fair-value hedged inventories. Commodities held for sale are reported at market value. There was no lower of cost or net realizable value inventory adjustment as of September 30, 2020. As of December 31, 2019, the company recorded a $6.6 million lower of cost or net realized value inventory adjustment reflected in cost of goods sold within the ethanol production segment. The components of inventories are as follows (in thousands):
| September 30, 2020 |  | December 31, 2019
Finished goods | $ | 64,803 |  | $ | 85,975
Commodities held for sale |  | 19,979 |  |  | 42,836
Raw materials |  | 53,637 |  |  | 77,900
Work-in-process |  | 10,124 |  |  | 13,523
Supplies and parts |  | 36,118 |  |  | 32,758
| $ | 184,661 |  | $ | 252,992

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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 http://asc.fasb.org/topic&trid=2126998 + Details
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