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Rationalizations (Narrative) (Details) $ in Millions |  | 3 Months Ended
--- | --- | ---
Mar. 02, 2015 USD ($) employee | Mar. 31, 2016 USD ($) | Mar. 31, 2015 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring Reserve |  | $ 1.8 |
2015 Advanced Graphite Materials Rationalization |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring Reserve |  | 0.9 |
Expected number of positions eliminated (employees) | employee | 85 |  |
Expected cost | $ 10.0 |  |
2015 Advanced Graphite Materials Rationalization | Scenario, Forecast |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Expected cash outlay |  | 8.0 |
2015 Advanced Graphite Materials Rationalization | Successor |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring Costs |  | $ 0.4 | $ 2.6

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- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: 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=56944662&loc=d3e3602-108585 + Details
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