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Employee Benefits - Additional Information (Detail)	6 Months Ended
	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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Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.

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