XML 67 R56.htm IDEA: XBRL DOCUMENT v3.20.2
Derivative Instruments and Risk Management - Additional Information (Detail) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Not Designated as Hedging Instrument [Member] | Foreign Currency Forward Exchange Contracts [Member] | Other net income/(expense) [Member]    
Derivative [Line Items]    
Amount of gain/(loss) recognized in income $ 1.8 $ 1.0
Designated as Hedging Instrument [Member] | Interest Rate Swaps [Member] | Accumulated Other Comprehensive Loss [Member]    
Derivative [Line Items]    
Amount of gain/(loss) recognized in income   $ 1.5