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Inventories (Tables)

3 Months Ended

Mar. 31, 2016

Inventory, Net [Abstract]

Schedule of Inventories

Inventories consist of the following:	March 31, 2016			December 31, 2015
Raw materials	$	54,914		$	52,121
Work-in-process	28,302			34,025
Finished goods	18,821			15,988
Operating and other supplies	118,465			129,738
Total inventories	$	220,502		$	231,872

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- References

No definition available.

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 2
-Paragraph 6
-Subparagraph a,b,c
-Article 5

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