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Stock-Based Compensation (Tables)
 12 Months Ended
Oct. 31, 2020
Share-based Payment Arrangement [Abstract]  
Valuation Assumptions
The following table summarizes the weighted average key assumptions used in estimating the value of PSUs:
Performance Stock Units
Performance period11/1/2019 - 10/31/2022
Valuation date stock price$40.59
Risk-free rate
0.10% - 1.59%
Estimated volatility46.4%