Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Offsetting of Fair Values of Company's Derivative Assets and Derivative Liabilities (Detail)

v2.4.0.6
Fair Value Measurements - Offsetting of Fair Values of Company's Derivative Assets and Derivative Liabilities (Detail) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Derivative [Line Items]    
Gross Amounts of Recognized Assets $ 3.0 $ 1.2
Gross Amounts Offset in the Balance Sheet (2.2) (1.2)
Net Amounts of Assets Presented in the Balance Sheet 0.8   
Gross Amounts of Recognized Liabilities 12.9 6.6
Gross Amounts Offset in the Balance Sheet (2.2) (1.2)
Net Amounts of Liabilities Presented in the Balance Sheet 10.7 5.4
Foreign exchange currency contracts [Member]
    
Derivative [Line Items]    
Gross Amounts of Recognized Assets 3.0 1.2
Gross Amounts Offset in the Balance Sheet (2.2) (1.2)
Net Amounts of Assets Presented in the Balance Sheet 0.8   
Gross Amounts of Recognized Liabilities 11.7 4.6
Gross Amounts Offset in the Balance Sheet (2.2) (1.2)
Net Amounts of Liabilities Presented in the Balance Sheet 9.5 3.4
Interest rate swaps [Member]
    
Derivative [Line Items]    
Gross Amounts of Recognized Liabilities 1.2 2.0
Gross Amounts Offset in the Balance Sheet      
Net Amounts of Liabilities Presented in the Balance Sheet $ 1.2 $ 2.0