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New Accounting Standards Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 29, 2018 | Sep. 30, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
New Accounting Pronouncement, Effect of Adoption | [1] |  | $ 8.1 |
Accounting Standards Update 2017-07 [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
New Accounting Pronouncement, Effect of Adoption |  | $ 1.9 |  | $ 5.8
Accounting Standards Update 2017-12 [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
New Accounting Pronouncement, Effect of Adoption |  |  | 0.2 |
Accounting Standards Update 2018-02 [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
New Accounting Pronouncement, Effect of Adoption |  |  | $ 7.9 |
[1] | Amounts reclassified to retained earnings upon adoption of ASU 2017-12 and ASU 2018-02.

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