Severance and Restructuring Charges - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		3 Months Ended			3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended		3 Months Ended		12 Months Ended
	Mar. 31, 2013 Workforce Reduction and Facility Closure Program [Member]	Dec. 31, 2013 Workforce Reduction and Facility Closure Program [Member]	Mar. 31, 2012 Distribution Network Optimization and Cost Reduction Program [Member]	Dec. 31, 2013 Distribution Network Optimization and Cost Reduction Program [Member]	Dec. 31, 2012 Distribution Network Optimization and Cost Reduction Program [Member]	Mar. 31, 2013 Facility Closure Cost [Member] Workforce Reduction and Facility Closure Program [Member]	Dec. 31, 2013 Facility Closure Cost [Member] Workforce Reduction and Facility Closure Program [Member]	Mar. 31, 2012 Facility Closure Cost [Member] Distribution Network Optimization and Cost Reduction Program [Member]	Dec. 31, 2013 Facility Closure Cost [Member] Distribution Network Optimization and Cost Reduction Program [Member]	Dec. 31, 2012 Facility Closure Cost [Member] Distribution Network Optimization and Cost Reduction Program [Member]	Mar. 31, 2013 Severance and Related Expense [Member] Workforce Reduction and Facility Closure Program [Member]	Mar. 31, 2012 Severance and Related Expense [Member] Distribution Network Optimization and Cost Reduction Program [Member]	Dec. 31, 2013 Severance and Related Expense [Member] Distribution Network Optimization and Cost Reduction Program [Member]	Dec. 31, 2012 Severance and Related Expense [Member] Distribution Network Optimization and Cost Reduction Program [Member]	Dec. 31, 2013 Severance and Restructuring Charges [Member] Workforce Reduction and Facility Closure Program [Member]
Restructuring Cost and Reserve [Line Items]
Pre-tax charge	$ 14.4		$ 6.2			$ 1.2		$ 2.6			$ 13.2	$ 3.6
Cash outlays associated with severance							8.6		0.6	2.1			1.1	1.9
Reversal of severance charges														0.3	1.4
Accrued liabilities		$ 4.4		$ 0.2	$ 1.9