Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Offsetting of Derivative Assets (Detail)

v3.7.0.1
Fair Value Measurements - Offsetting of Derivative Assets (Detail) - USD ($)
$ in Millions
Mar. 31, 2017
Dec. 31, 2016
Derivative [Line Items]    
Gross Amounts of Recognized Assets $ 3.2 $ 7.4
Gross Amounts Offset in the Balance Sheet, Derivative Assets (2.8) (3.0)
Net Amounts of Assets Presented in the Balance Sheet 0.4 4.4
Foreign exchange currency contracts [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets 3.2 7.4
Gross Amounts Offset in the Balance Sheet, Derivative Assets (2.8) (3.0)
Net Amounts of Assets Presented in the Balance Sheet $ 0.4 $ 4.4