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Restructuring and Integration (Tables)

12 Months Ended

Dec. 31, 2017

Wheeling Plant [Member]

Summary of Restructuring and Integration Charges and Reserve Activity

The following tables summarize restructuring and integration charges for the years ended December 31, 2017, 2016, and 2015.

		Year Ended December 31, 2017
		APC				PEP				Corporate and Consolidations				Total
Severance and other costs		$	17			$	—			$	—			$	17
Site closure and other associated costs			369				—				—				369
Total		$	386			$	—			$	—			$	386
		Year Ended December 31, 2016
		APC				PEP				Corporate and Consolidations				Total
Severance and other costs		$	851			$	836			$	—			$	1,687
Site closure and other associated costs			3,488				483				—				3,971
Total		$	4,339			$	1,319			$	—			$	5,658
		Year Ended December 31, 2015
		APC				PEP				Corporate and Consolidations				Total
Severance and other costs		$	672			$	850			$	—			$	1,522
Site closure and other associated costs			1,962				—				1,765				3,727
Total		$	2,634			$	850			$	1,765			$	5,249

The following tables summarize restructuring and integration reserve activity for the years ended December 31, 2017, 2016, and 2015.

		Reserve Balance as of December 31, 2016				Charges				Non-cash Adjustments				Cash Reductions				Reserve Balance as of December 31, 2017
Severance and other costs		$	1,000			$	17			$	(164	)		$	(853	)		$	—
Site closure and other associated costs			1,625				369				—				(895	)			1,099
Total		$	2,625			$	386			$	(164	)		$	(1,748	)		$	1,099
		Reserve Balance as of December 31, 2015				Charges				Non-cash Adjustments				Cash Reductions				Reserve Balance as of December 31, 2016
Severance and other costs		$	887			$	1,687			$	(278	)		$	(1,296	)		$	1,000
Site closure and other associated costs			1,845				3,971				(2,142	)			(2,049	)			1,625
Total		$	2,732			$	5,658			$	(2,420	)		$	(3,345	)		$	2,625
		Reserve Balance as of December 31, 2014				Charges				Non-cash Adjustments				Cash Reductions				Reserve Balance as of December 31, 2015
Severance and other costs		$	—			$	1,522			$	(408	)		$	(227	)		$	887
Site closure and other associated costs			—				3,727				(1,882	)			—				1,845
Total		$	—			$	5,249			$	(2,290	)		$	(227	)		$	2,732

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- Definition

Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4)
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 5.P.3)
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747

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