Retirement Benefit Plans - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
U.S. and Puerto Rico [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Contribution towards defined benefit plans	$ 20.0
Additional contribution towards defined benefit plans	0
Foreign-based defined benefit plans [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Contribution towards defined benefit plans	11.3
Additional contribution towards defined benefit plans	$ 3.4