Employee Benefit Plans - Pretax Intrinsic Value of Options Exercised and Their Average Exercise Prices (Detail) - USD ($) $ / shares in Units, $ in Thousands |
12 Months Ended | ||
---|---|---|---|
Oct. 31, 2020 |
Oct. 31, 2019 |
Oct. 31, 2018 |
|
Share-based Payment Arrangement [Abstract] | |||
Intrinsic value | $ 218,640 | $ 110,815 | $ 71,840 |
Average exercise price per share (in USD per share) | $ 51.76 | $ 44.29 | $ 38.18 |