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Employee Benefits - Additional Information (Detail) | 6 Months Ended
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Jun. 30, 2019 USD ($)
Defined Contribution and Other Retirement Plans |
Defined Benefit Plan Disclosure [Line Items] |
Contribution to the plans | $ 1,800,000
Expected contribution to the plan | 3,900,000
U.S. Plans | Pension Plans |
Defined Benefit Plan Disclosure [Line Items] |
Expected contribution to the plan | 4,200,000
Contribution to the plans | 0
Non-U.S. Plans | Pension Plans |
Defined Benefit Plan Disclosure [Line Items] |
Expected contribution to the plan | 19,300,000
Contribution to the plans | 8,300,000
Benefit payments | $ 2,200,000

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