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Goodwill (Tables) | 12 Months Ended
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Dec. 31, 2014
Goodwill And Intangible Assets Disclosure [Abstract] |
Changes in Carrying Amount of Goodwill |
|  | Operating segment |  |  |  |
|  | Chemicals |  |  | Component Products |  |  | EWI |  |  | Total |
|  | (In millions) |
Balance at December 31, 2011 |  | $ | 352.6 |  |  | $ | 41.1 |  |  | $ | 6.4 |  |  | $ | 400.1 |
Sale of discontinued operations |  |  | — |  |  |  | (14.3 | ) |  |  | — |  |  |  | (14.3 | )
Goodwill impairment |  |  | — |  |  |  | — |  |  |  | (6.4 | ) |  |  | (6.4 | )
Changes in foreign exchange rates |  |  | — |  |  |  | .3 |  |  |  | — |  |  |  | .3 |
Balance at December 31, 2012, 2013 and 2014 |  | $ | 352.6 |  |  | $ | 27.1 |  |  | $ | — |  |  | $ | 379.7 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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