Retirement Benefit Plans - Components of Net Pension Expense (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
U.S. and Puerto Rico [Member]
Schedule of Expected Future Pension Benefit Payment [Line Items]
Service cost	$ 9.6	$ 11.8	$ 10.9
Interest cost	13.8	15.8	15.5
Expected return on plan assets	(32.2)	(31.8)	(30.8)
Settlements	2.6
Amortization of prior service cost	(5.9)	(3.7)	(2.6)
Amortization of unrecognized actuarial loss	16.5	17.4	10.6
Net periodic benefit cost	4.4	9.5	3.6
Foreign-based Defined Benefit Plans [Member]
Schedule of Expected Future Pension Benefit Payment [Line Items]
Service cost	19.0	18.9	14.7
Interest cost	10.0	8.8	9.2
Expected return on plan assets	(13.7)	(13.9)	(11.0)
Curtailment gain	(0.5)
Amortization of prior service cost	(1.9)	(1.9)	(1.3)
Amortization of unrecognized actuarial loss	6.4	2.7	0.5
Net periodic benefit cost	$ 19.3	$ 14.6	$ 12.1