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Goodwill and Other Intangibles Amortizable Intangibles (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 30, 2017 | Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying value | $ 114.0 | $ 155.6
Accumulated amortization | 37.0 | 71.8
Amortizable intangibles, net | 77.0 | 83.8
Customer relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying value | 100.5 | 100.5
Accumulated amortization | 26.6 | 21.6
Amortizable intangibles, net | $ 73.9 | $ 78.9
Average remaining life (years) | 15 years | 16 years
Licensing arrangements [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying value |  | $ 28.8
Accumulated amortization |  | 27.6
Amortizable intangibles, net |  | $ 1.2
Average remaining life (years) |  | 1 year
Developed product technology [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying value |  | $ 14.9
Accumulated amortization |  | 12.7
Amortizable intangibles, net |  | $ 2.2
Average remaining life (years) |  | 1 year
Other Intangible Assets [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying value | $ 13.5 | $ 11.4
Accumulated amortization | 10.4 | 9.9
Amortizable intangibles, net | $ 3.1 | $ 1.5
Average remaining life (years) | 3 years | 3 years

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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/presentationRef -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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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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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