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Share-Based Compensation Plans - Narrative (Details) - USD ($) | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Oct. 31, 2021 | Oct. 31, 2020 | Oct. 31, 2019 | Mar. 31, 2018 | Mar. 31, 2016 | May 01, 2006
RSUs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vesting period | 3 years |  |  |  |  |
Exercisable rate | 50.00% |  |  |  |  |
Total unrecognized compensation cost, net of estimated forfeitures | $ 21,400,000 |  |  |  |  |
Weighted-average vesting period | 1 year 8 months 12 days |  |  |  |  |
Fair value per share of awards granted (in USD per share) | $ 40.22 | $ 36.11 | $ 34.48 |  |  |
Total fair value of RSUs vested | $ 16,900,000 | $ 6,100,000 | $ 10,700,000 |  |  |
Performance shares |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vesting period | 3 years |  |  |  |  |
Total unrecognized compensation cost, net of estimated forfeitures | $ 15,400,000 |  |  |  |  |
Weighted-average vesting period | 1 year 8 months 12 days |  |  |  |  |
Fair value per share of awards granted (in USD per share) | $ 39.97 | $ 35.92 | $ 35.44 |  |  |
Total fair value of RSUs vested | $ 9,000,000 | $ 6,100,000 | $ 6,800,000 |  |  |
Service period | 3 years |  |  |  |  |
Performance shares | Minimum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Exercisable rate | 0.00% |  |  |  |  |
Performance shares | Maximum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Exercisable rate | 150.00% |  |  |  |  |
2021 Equity Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares authorized (in shares) |  |  |  | 3,975,000 |  |
Number of shares available for grant (in shares) | 5,406,414 |  |  |  |  |
2004 Employee Stock Purchase Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares authorized (in shares) |  |  |  |  | 4,000,000 |
Fair value percentage of common stock price |  |  |  |  |  | 95.00%
Employee contribution percentage |  |  |  |  |  | 10.00%
Maximum annual employee contribution |  |  |  |  |  | $ 25,000
Holding period for shares purchased in program | 6 months |  |  |  |  |
Number of shares unissued (in shares) | 518,881 |  |  |  |  |

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