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Contingencies Gain Contingency (Details) - USD ($) $ in Millions |  | 27 Months Ended |
--- | --- | --- | ---
Sep. 26, 2018 | Dec. 31, 2017 | Oct. 31, 2017
Gain Contingencies [Line Items] |  |  |
Gain Contingency, Unrecorded Amount |  |  | $ 84.3
Litigation Settlement Interest |  | $ 0.0 |
Litigation Settlement, Expense |  | $ 7.2 |
Litigation Settlement, Amount Awarded from Other Party | $ 0.0 |  |
Proceeds from Legal Settlements | 35.7 |  |
Proceeds From Legal Settlements, Direct Damages | 28.5 |  |
Gain (Loss) Related to Litigation Settlement | $ 7.2 |  |

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- Definition 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. + References No definition available. + Details
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- Definition The amount or range of possible amounts of gain that could be realized upon the resolution of a contingency. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6397426&loc=d3e17499-108355 + Details
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- Definition Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process. + References 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 + Details
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- Definition Amount awarded from other party in judgment or settlement of litigation. + References No definition available. + Details
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- Definition Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees. + References No definition available. + Details
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