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Restructuring and Impairment Charges (Tables) | 6 Months Ended
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Jun. 30, 2016
Wheeling Plant [Member] |
Summary of Impairment and Restructuring Charges | Below is a summary of the Wheeling plant impairment and restructuring charges in the Condensed Consolidated Statement of Net Income and Comprehensive Income (Loss) for the three and six months ended June 30, 2016 and 2015 and Condensed Consolidated Balance Sheet as of June 30, 2016 and December 31, 2015:
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2016 |  |  | 2015 |  |  | 2016 |  |  | 2015 |
Impairment of tangible assets |  | $ | 328 |  |  | $ | — |  |  | $ | 361 |  |  | $ | — |
Restructuring charges and contract costs |  |  | 1,749 |  |  |  | — |  |  |  | 3,275 |  |  |  | — |
Restructuring and impairment charges |  | $ | 2,077 |  |  | $ | — |  |  | $ | 3,636 |  |  | $ | — |
|  | Reserve Balance at December 31, 2015 |  |  | Charges |  |  | Paid in 2016 |  |  | Reserve Balance at June 30 2016 |
Severance and other employee costs |  | $ | 445 |  |  | $ | 869 |  |  | $ | (1,298 | ) |  | $ | 16 |
Site closure and other associated cost |  |  | 1,845 |  |  |  | 2,767 |  |  |  | (2,753 | ) |  |  | 1,859 |
Total |  | $ | 2,290 |  |  | $ | 3,636 |  |  | $ | (4,051 | ) |  | $ | 1,875 |

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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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