Retirement Benefit Plan - Summary of Amounts Recognized in Balance Sheet (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
U.S. and Puerto Rico [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Prepaid pension	$ 92.7	$ 61.9
Short-term accrued benefit liability	(0.7)	(0.4)
Long-term accrued benefit liability	(10.1)	(12.8)
Net amount recognized	81.9	48.7
Foreign-based defined benefit plans [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Prepaid pension	12.1	7.5
Long-term accrued benefit liability	(11.3)	(35.3)
Net amount recognized	$ 0.8	$ (27.8)