Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Inventories [Abstract]
Raw material reserves	$ 12,508	$ 10,694
Production supplies	41,114	31,007
Products-in-progress reserves	527,118	487,830
Finished product reserves	603,036	563,497
Total	$ 1,183,776	$ 1,093,028

A classification of current inventory representing the amount of goods that have completed the production process and are held for sale in the ordinary course of business. [Refer: Inventories]

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The amount of current inventories. [Refer: Inventories]

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A classification of current inventory representing the amount of supplies to be used for the production process. [Refer: Inventories]

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A classification of current inventory representing the amount of assets to be consumed in the production process or in the rendering of services. [Refer: Inventories]

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A classification of current inventory representing the amount of assets currently in production, which require further processes to be converted into finished goods or services. [Refer: Current finished goods; Inventories]

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