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Guarantees, Commitments, and Contingencies (Details) $ in Thousands, $ in Millions			9 Months Ended	12 Months Ended
	Sep. 27, 2018 USD ($)	Sep. 27, 2018 CAD ($)	Sep. 30, 2018 USD ($)	Dec. 31, 2017 USD ($) defendant
Guarantor Obligations [Line Items]
Guarantees			$ 41.3
Expiration period			1 year
Guarantees of vendor financing - short-term
Guarantor Obligations [Line Items]
Guarantees			$ 37.0
Guarantees of vendor financing - long-term
Guarantor Obligations [Line Items]
Guarantees			0.1
Other debt guarantees
Guarantor Obligations [Line Items]
Guarantees			$ 4.2
Canadian Antitrust Law
Guarantor Obligations [Line Items]
Number of hydrogen peroxide producers in putative class action complaints | defendant				5
Number of other defendants | defendant				5
Canadian Antitrust Law | Settled Litigation
Guarantor Obligations [Line Items]
Loss in period	$ 2.5	$ 3,250
Litigation Settlement Amount, Settled By Other Defandants				$ 20.6

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Litigation Settlement Amount, Settled By Other Defandants

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Number Of Hydrogen Peroxide Producers In Putative Class Action Complaints

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Number Of Other Defendants In Putative Class Action Complaints Settled

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=115931803&loc=d3e12069-110248

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The amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

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