Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Offsetting of Derivative Liabilities (Detail)

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Fair Value Measurements - Offsetting of Derivative Liabilities (Detail) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Derivative [Line Items]    
Gross Amounts of Recognized Liabilities $ 3.0 $ 1.7
Gross Amounts Offset in the Balance Sheet, Derivative Liabilities (1.4) (1.2)
Net Amounts of Liabilities Presented in the Balance Sheet 1.6 0.5
Foreign exchange currency contracts [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Liabilities 3.0 1.7
Gross Amounts Offset in the Balance Sheet, Derivative Liabilities (1.4) (1.2)
Net Amounts of Liabilities Presented in the Balance Sheet $ 1.6 $ 0.5