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Derivative Instruments and Risk Management - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Derivative [Line Items]      
Interest rate swaps notional value $ 0.0 $ 0.0  
Foreign currency forward exchange contracts notional value $ 113.0 127.2  
Maximum [Member]      
Derivative [Line Items]      
Maturity period of foreign currency forward exchange contracts 1 year    
Emission Trading Scheme Credits [Member] | UNITED KINGDOM      
Derivative [Line Items]      
Commodity contract asset non current $ 3.9 0.0  
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 $ 1.0 $ 1.5  
Designated as Hedging Instrument [Member] | Interest Rate Swaps [Member] | Accumulated Other Comprehensive Loss [Member]      
Derivative [Line Items]      
Amount of gain/(loss) recognized in income     $ 1.9