Employee Benefit and Retirement Plans - Summary of Components of Pension and Postretirement Benefit Expense (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0.7	$ 0.7
Interest cost	12.6	7.6
Expected return on plan assets	(18.3)	(11.4)
Amortization, net	5.9	5.4
Net periodic cost	0.9	2.3
International [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1.8	1.3
Interest cost	3.3	4.6
Expected return on plan assets	(4.5)	(5.5)
Amortization, net	0.6	0.7
Net periodic cost	1.2	1.1
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	0.6	0.5
Amortization, net	(2.3)	(2.6)
Net periodic cost	$ (1.7)	$ (2.1)