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Derivative Instruments and Hedging Activities - Narrative (Details)
6 Months Ended
Apr. 30, 2021
USD ($)
Derivative Instruments, Gain (Loss) [Line Items]  
Maximum length of time hedged in cash flow hedge 2 years
Cash flow hedge effectiveness measurement period 2 months
Gain (loss) from AOCL earnings $ (11,700,000)
Forward currency contracts  
Derivative Instruments, Gain (Loss) [Line Items]  
Derivative, notional amount $ 261,700,000