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Pension Plans and Other Postretirement Benefits Pension and Postretirement Plan Contributions (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Defined Benefit Plan Disclosure [Line Items] |  |
Other postretirement benefits payments | $ 0.5 | $ 0.8
Chemetall Surface Treatment |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Pension contributions |  | 1.0
Continuing Operations |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Pension contributions | $ 2.4 | $ 2.4

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- Definition The amount of cash or cash equivalents contributed during the reporting period by the entity to fund non-pension postretirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3536-108585 + Details
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- Definition The amount of cash or cash equivalents contributed by the entity to fund its pension plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3536-108585 + Details
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