Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Offsetting of Derivative Assets (Detail)

v3.19.1
Fair Value Measurements - Offsetting of Derivative Assets (Detail) - USD ($)
$ in Millions
Mar. 31, 2019
Dec. 31, 2018
Derivative [Line Items]    
Gross Amounts of Recognized Assets $ 2.1 $ 3.3
Gross Amounts Offset in the Balance Sheet, Derivative Assets (1.9) (1.2)
Net Amounts of Assets Presented in the Balance Sheet 0.2 2.1
Foreign exchange currency contracts [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets 2.1 3.3
Gross Amounts Offset in the Balance Sheet, Derivative Assets (1.9) (1.2)
Net Amounts of Assets Presented in the Balance Sheet $ 0.2 $ 2.1