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Derivative Instruments - Gross Notional Values (Details)
bbl in Millions, $ in Millions
3 Months Ended
Mar. 31, 2021
USD ($)
bbl
Long | Commodity contracts  
Derivative instruments, at their respective fair value positions  
Notional value of commodity contracts (in barrels) | bbl 56.1
Long | Foreign currency exchange contracts | USD  
Derivative instruments, at their respective fair value positions  
Notional value of foreign currency exchange contracts | $ $ 405.2
Short | Commodity contracts  
Derivative instruments, at their respective fair value positions  
Notional value of commodity contracts (in barrels) | bbl 46.2
Short | Foreign currency exchange contracts | USD  
Derivative instruments, at their respective fair value positions  
Notional value of foreign currency exchange contracts | $ $ 244.7