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Pension Plans - Additional Information (Detail) $ in Millions | 6 Months Ended
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Jul. 01, 2017 USD ($)
Foreign Pension Plans [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Expected future employer contributions | $ 7.1
Domestic Pension Plans [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Expected future employer contributions | 2.3
Cash contributions made | 30.8
Discretionary contribution | 30.0
Required contribution | $ 0.8

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