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Inventories (Tables)

9 Months Ended

Sep. 30, 2018

Inventory Disclosure [Abstract]

Schedule of Inventory, Current

			September 30, 2018						December 31, 2017
Raw materials			$	34,334					$	48,502
Work in progress			56,049						50,511
Finished goods			29,063						35,430
Spares and other			24,052						23,091
			143,498						157,534
Reduction to LIFO cost basis			(28,472)						(28,326)
Total inventories – net			$	115,026					$	129,208

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- Definition

Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

+ References

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