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Summary of Significant Accounting Policies Recently Adopted Accounting Pronouncements (Details) $ in Millions | Sep. 29, 2017 USD ($)
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Deferred Tax Asset [Domain] |
New Accounting Pronouncement, Early Adoption [Line Items] |
Cumulative Effect of New Accounting Principle in Period of Adoption | $ (13.6)
Other Assets [Member] |
New Accounting Pronouncement, Early Adoption [Line Items] |
Cumulative Effect of New Accounting Principle in Period of Adoption | 12.6
Current Deferred Tax Liability [Domain] |
New Accounting Pronouncement, Early Adoption [Line Items] |
Cumulative Effect of New Accounting Principle in Period of Adoption | (0.5)
Current Deferred Tax Liability [Domain] |
New Accounting Pronouncement, Early Adoption [Line Items] |
Cumulative Effect of New Accounting Principle in Period of Adoption | $ (0.5)

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