Employee Benefits - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2020 USD ($)
Defined Contribution and Other Retirement Plans
Defined Benefit Plan Disclosure [Line Items]
Contribution to the plans	$ 2,000,000.0
Expected contribution to the plan	3,800,000
U.S. Plans | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to the plan	4,400,000
Non-U.S. Plans | Qualified Plan
Defined Benefit Plan Disclosure [Line Items]
Benefit payments	0
Non-U.S. Plans | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to the plan	20,900,000
Contribution to the plans	15,600,000
Non-U.S. Plans | Nonqualified Plan
Defined Benefit Plan Disclosure [Line Items]
Benefit payments	$ 3,300,000