Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Offsetting of Derivative Assets (Detail)

v2.4.0.8
Fair Value Measurements - Offsetting of Derivative Assets (Detail) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Derivative [Line Items]    
Gross Amounts of Recognized Assets $ 12.1 $ 8.0
Gross Amounts Offset in the Balance Sheet, Derivative Assets (10.4) (3.0)
Net Amounts of Assets Presented in the Balance Sheet 1.7 5.0
Foreign exchange currency contracts [Member]
   
Derivative [Line Items]    
Gross Amounts of Recognized Assets 12.1 8.0
Gross Amounts Offset in the Balance Sheet, Derivative Assets (10.4) (3.0)
Net Amounts of Assets Presented in the Balance Sheet $ 1.7 $ 5.0