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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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- 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 + Details
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