Gross and Net Amounts of Foreign Exchange Forward Contracts and Interest Rate Swaps (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Derivative [Line Items]
Gross Amounts of Assets	$ 1.7	$ 15.3
Impact of Netting, Assets
Derivatives assets	1.7	15.3
All Other Amounts Subject to Master Netting Agreements, Assets	(0.6)	(3.6)
Potential Net Amounts of Assets	1.1	11.7
Gross Amounts of Liabilities	10.6
Impact of Netting, Liabilities
Derivatives liabilities	10.6
All Other Amounts Subject to Master Netting Agreements, Liabilities	(0.6)
Potential Net Amounts of Liabilities	10.0
Not Designated as Hedging Instrument | Foreign Exchange Forward Contracts Reported Gross
Derivative [Line Items]
Gross Amounts of Assets	0.4	0.6
Impact of Netting, Assets
Derivatives assets	0.4	0.6
All Other Amounts Subject to Master Netting Agreements, Assets	(0.4)	(0.1)
Potential Net Amounts of Assets		0.5
Gross Amounts of Liabilities	1.5	24.0
Impact of Netting, Liabilities
Derivatives liabilities	1.5	24.0
All Other Amounts Subject to Master Netting Agreements, Liabilities	(0.2)	(3.6)
Potential Net Amounts of Liabilities	1.3	20.4
Designated as Hedging Instrument | Interest Rate Swap
Derivative [Line Items]
Gross Amounts of Assets	1.3	14.7
Impact of Netting, Assets
Derivatives assets	1.3	14.7
All Other Amounts Subject to Master Netting Agreements, Assets	(0.2)	(3.5)
Potential Net Amounts of Assets	1.1	11.2
Gross Amounts of Liabilities	9.1
Impact of Netting, Liabilities
Derivatives liabilities	9.1
All Other Amounts Subject to Master Netting Agreements, Liabilities	(0.4)
Potential Net Amounts of Liabilities	$ 8.7