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Restructuring and Other Related Costs - Components of Restructuring and Other Related Costs (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Restructuring Cost and Reserve |  |  |  |
Restructuring and other related costs | $ 273,000 | $ 4,106,000 | $ 403,000 | $ 5,578,000
Other related costs |  |  |  |
Restructuring Cost and Reserve |  |  |  |
Restructuring and other related costs | 54,000 | 238,000 | 77,000 | 880,000
Performance Materials Plant Closure | Employee Severance |  |  |  |
Restructuring Cost and Reserve |  |  |  |
Restructuring and other related costs | 219,000 | 3,868,000 | 326,000 | 3,868,000
Legacy Eco Restructuring Plan | Employee Severance |  |  |  |
Restructuring Cost and Reserve |  |  |  |
Restructuring and other related costs | $ 0 | $ 0 | $ 0 | $ 830,000

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- Definition Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(1)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(d)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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