Employee Benefits - Additional Information (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($)
Non-Qualified U.S. Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Contribution to the plans	$ 1.1
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Contribution to the plans	6.3
Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to the plan	5.0
Contribution to other postretirement plans	1.3
Maximum [Member] | Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to the plan	$ 24.0