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Restructuring and Integration (Tables) | 12 Months Ended
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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 + Details
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