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Inventories (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2017

Dec. 31, 2016

Inventory, Net [Abstract]

Schedule of Inventories

Inventories consist of the following:
	March 31, 2017			December 31, 2016
Raw materials	$	74,121		$	59,415
Work-in-process	41,331			35,539
Finished goods	22,440			26,613
Operating and other supplies	106,828			111,996
Total inventories	$	244,720		$	233,563

Inventories, at December 31, consist of the following:

	2016			2015
Raw materials	$	59,415		$	52,121
Work-in-process	35,539			34,025
Finished goods	26,613			15,988
Operating and other supplies	111,996			129,738
Inventories	$	233,563		$	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 S99
-Paragraph 1
-Subparagraph (SX 210.5-02(6)(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(6)(a))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: 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 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(6)(c))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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