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Commitments and Contingencies (Details) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2015 USD ($) a | Sep. 30, 2015 USD ($) a | Dec. 31, 2014 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |
Asset Retirement Obligation | $ 1,748 | $ 1,748 | $ 1,807
Portion Of Site For Which Certificate Not Received | a | 80 | 80 |
Accrual for Environmental Loss Contingencies, Increase (Decrease) for Revision in Estimates | $ 388 |  |
Cost to complete remediation activities | 600 | $ 600 |
Restructuring Reserve [Roll Forward] |  |  |
Restructuring Reserve |  | (2,367) |
Restructuring Charges |  | (3,729) |
Payments for Restructuring |  | 3,797 |
Restructuring Reserve | (2,299) | (2,299) |
Deferred Lease Revenue [Member] |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Restructuring Charges |  | 364 |
Facility Closing [Member] |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Restructuring Reserve |  | 0 |
Restructuring Charges |  | (1,750) |
Payments for Restructuring |  | 1,750 |
Restructuring Reserve | 0 | 0 |
Oil And Gas [Member] | Special Termination Benefits [Member] |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Restructuring Reserve |  | (2,367) |
Restructuring Charges |  | (1,979) |
Payments for Restructuring |  | 2,047 |
Restructuring Reserve | $ (2,299) | $ (2,299) |

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- Definition The Increase or Decrease in the accrual for environmental loss in the period from revisions in estimates to existing obligations. The amount does not relate to changes in the environmental accrual related to business acquisitions or divestitures, or to currency movements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.Y.Q2) -URI http://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751 + Details
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