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Inventories

3 Months Ended

Mar. 31, 2021

Inventory, Net [Abstract]

Inventories

Inventories

Inventories consist of the following:

			March 31, 2021						December 31, 2020
Raw materials			$	105.2					$	95.9
Work-in-process			44.1						40.5
Finished goods			22.7						26.9
Operating and other supplies			131.0						127.8
Total inventories			$	303.0					$	291.1

Inventories are stated at the lower of cost or Net Realizable Value ("NRV") using the first-in, first-out ("FIFO") or the weighted average cost method.

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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

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- References

No definition available.

+ Details

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