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Restructuring and other (income) charges, net - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations |  |  |  |
Severance costs | $ 0.0 | $ 0.0 | $ 1.3 | $ 4.5
Other (income) charges, net | 1.1 | 0.7 | 2.1 | 0.7
Additional miscellaneous exit costs |  | 0.7 |  |
Asset impairment |  |  | 0.4 | 0.0
Employee related severance cost |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations |  |  |  |
Severance costs |  | $ 0.0 |  | 2.7
Employee related severance cost | Performance Chemicals |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations |  |  |  |
Severance costs |  |  |  | 1.9
Employee related severance cost | Performance Materials |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations |  |  |  |
Severance costs |  |  |  | 0.8
Palmeira, Santa Catarina, Brazil, Performance Chemicals |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations |  |  |  |
Remaining restructuring cost | $ 1.0 |  | $ 1.0 |
Duque De Caxias, Rio de Janeiro, Brazil, Performance Chemicals |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations |  |  |  |
Severance costs |  |  |  | 1.8
Asset impairment |  |  |  | 0.1
Duque De Caxias, Rio de Janeiro, Brazil, Performance Chemicals | Performance Chemicals |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations |  |  |  |
Asset impairment |  |  |  | $ 0.3

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2420-110228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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