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Derivative Financial Instruments - Additional Information (Details) - Oct. 31, 2020
USD ($)
EUR (€)
CHF (SFr)
CNY (¥)
GBP (£)
Derivatives Fair Value [Line Items]          
Cash flow hedges $ 0        
Foreign Exchange Forward          
Derivatives Fair Value [Line Items]          
Net forward contracts hedging portfolio $ 20,000,000.0 € 24,000,000.0 SFr 6,000,000.0 ¥ 21,600,000 £ 5,600,000