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Goodwill and Other Intangible Assets (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2019 | Dec. 31, 2018
Goodwill and Other Intangible Assets [Abstract] |  |  |  |
Goodwill | $ 807.9 | [1] | $ 812.4 | [2]
Finite-Lived Intangible Assets [Abstract] |  |  |  |
Weighted average useful life | 32 years |  |  |
Gross carrying amount | $ 254.2 |  | 255.9 |
Accumulated amortization | $ 46.3 |  | 41.8 |
Tradenames [Member] |  |  |  |
Finite-Lived Intangible Assets [Abstract] |  |  |  |
Weighted average useful life | 35 years |  |  |
Gross carrying amount | $ 203.9 |  | 204.2 |
Accumulated amortization | $ 29.5 |  | 26.6 |
Technology [Member] |  |  |  |
Finite-Lived Intangible Assets [Abstract] |  |  |  |
Weighted average useful life | 13 years |  |  |
Gross carrying amount | $ 18.8 |  | 18.8 |
Accumulated amortization | $ 7.2 |  | 6.4 |
Patents [Member] |  |  |  |
Finite-Lived Intangible Assets [Abstract] |  |  |  |
Weighted average useful life | 19 years |  |  |
Gross carrying amount | $ 6.4 |  | 6.4 |
Accumulated amortization | $ 5.8 |  | 5.6 |
Customer Relationships [Member] |  |  |  |
Finite-Lived Intangible Assets [Abstract] |  |  |  |
Weighted average useful life | 22 years |  |  |
Gross carrying amount | $ 25.1 |  | 26.5 |
Accumulated amortization | $ 3.8 |  | $ 3.2 |
[1] | Unaudited
[2] | Condensed from audited financial statements

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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