Debt - Additional Information (Detail) In Millions, unless otherwise specified	12 Months Ended				12 Months Ended
	Dec. 31, 2013 USD ($) Ratio	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2013 JPY (¥)	Dec. 31, 2013 Senior Notes due 2014 [Member] USD ($)	Dec. 31, 2013 Senior Notes due 2019 [Member] USD ($)	Dec. 31, 2013 Senior Notes due 2021 [Member] USD ($)	Dec. 31, 2013 Senior Notes due 2039 [Member] USD ($)	Dec. 31, 2013 Term Loan [Member] USD ($)
Debt Instrument [Line Items]
Available borrowings under Senior Credit Facility, Increased by provisions, net	$ 1,350
Senior credit facility, maturity date	May 09, 2017
Outstanding Senior Credit Facility	0
Term loan	112.4	138.6		11,700.0
Interest rate on Senior Notes and term loan					1.40%	4.625%	3.375%	5.75%	0.61%
Maturity date of term loan	May 31, 2016
Estimated fair value of Senior Notes and Term loan	1,649.5								112.2
Maximum Leverage Ratio	3.0
Leverage ratio description under line of credit facility on financial covenants	Financial covenants include a maximum leverage ratio of 3.0 to 1.0
Aggregate Principal Amount of Senior Notes	250.0				250.0	500.0	300.0	500.0
Due date of senior notes					Nov. 30, 2014	Nov. 30, 2019	Nov. 30, 2021	Nov. 30, 2039
Interest payable	Interest on each series is payable on May 30 and November 30 of each year until maturity.
Debt instruments redemption terms	Redemption price equal to the greater of 1) 100 percent of the principal amount of the notes being redeemed; or 2) the sum of the present values of the remaining scheduled payments of principal and interest (not including any portion of such payments of interest accrued as of the date of redemption), discounted to the date of redemption on a semi-annual basis at the Treasury Rate (as defined in the debt agreement), plus 15 basis points in the case of the 2014 Notes, 20 basis points in the case of the 2019 Notes and 2021 Notes, and 25 basis points in the case of the 2039 Notes
Available uncommitted credit facilities, Net	50.7
Weighted average interest rate for all borrowings, short-term debt		1.10%
Weighted average interest rate for all borrowings, long-term debt	3.30%	3.50%
Interest paid on Debt	$ 68.1	$ 67.8	$ 55.0