Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Offsetting of Derivative Assets (Detail)

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Fair Value Measurements - Offsetting of Derivative Assets (Detail) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Derivative [Line Items]    
Gross Amounts of Recognized Assets $ 3.2 $ 3.3
Gross Amounts Offset in the Balance Sheet, Derivative Assets (1.4) (1.2)
Net Amounts of Assets Presented in the Balance Sheet 1.8 2.1
Foreign exchange currency contracts [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets 3.2 3.3
Gross Amounts Offset in the Balance Sheet, Derivative Assets (1.4) (1.2)
Net Amounts of Assets Presented in the Balance Sheet $ 1.8 $ 2.1