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Benefit Plans - Additional Information (Details) |  |  |  |  |  | 12 Months Ended
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Nov. 17, 2023 | May 22, 2023 shares | Dec. 05, 2022 USD ($) item shares | Dec. 10, 2021 item USD ($) | Nov. 24, 2020 item USD ($) $ / shares | Oct. 31, 2023 USD ($) shares | Oct. 31, 2022 USD ($) shares | Oct. 31, 2021 USD ($) shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Granted |  | 0 |  |  |  |  |  |
Common stock issued, non-employee compensation (in shares) |  |  |  |  |  | 103,631 | 76,848 | 31,889
Noninterest Expense Directors Fees | $ |  |  |  |  |  | $ 200,000 | $ 200,000 | $ 300,000
Employer Matching Contribution Percentage |  |  |  |  |  | 2.00% |  |
Defined Contribution Plan, Cost Recognized | $ |  |  |  |  |  | $ 1,100,000 | $ 500,000 | $ 400,000
Restricted Stock Units |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Restricted Stock or Unit Expense | $ |  |  |  |  |  | $ 17,000,000.0 |  |
Restricted Stock or Unit Expense weighted average period |  |  |  |  |  | 2 years |  |
Performance Shares |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Restricted Stock Awards and Units, Granted, Shares |  |  |  |  |  | 1,124,953 |  |
Time Based Awards |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Restricted Stock Awards and Units, Granted, Shares |  |  |  |  |  | 4,538,236 |  |
Third Amended and Restated 2018 Omnibus Incentive Plan |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Number of shares authorized |  | 18,333,333 |  |  |  |  |  |
Common stock, shares available for issuance |  |  |  |  |  | 9,069,450 |  |
Amended and Restated 2018 Employee Stock Purchase Plan |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Share price as percentage of offering price |  | 85.00% |  |  |  |  |  |
ESOP, period for which sale of shares is restricted |  | 6 months |  |  |  |  |  |
Long Term Incentive Plan Fiscal 2021 |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Number of award components | item |  |  |  |  | 3 |  |  |
Common stock, shares reserved for issuance |  |  |  |  |  | 210,190 |  |
Long Term Incentive Plan Fiscal 2021 | Relative Total Shareholder Return Performance Shares |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percent of Performance Payout | 73.541% |  |  |  |  |  |  |
Award Calibration Percentage |  |  |  |  | 100.00% |  |  |
Variance from Award Calibration Percentage |  |  |  |  | 50.00% |  |  |
Award Cap, Percent |  |  |  |  | 200.00% |  |  |
Award Additional Cap, Percent |  |  |  |  | 100.00% |  |  |
Threshold Consecutive Trading Days | $ |  |  |  |  | 20 |  |  |
Long Term Incentive Plan Fiscal 2021 | Absolute Total Shareholder Return Performance Shares |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Award Cap, Percent |  |  |  |  | 200.00% |  |  |
Threshold Consecutive Trading Days | $ |  |  |  |  | 20 |  |  |
Share Price | $ / shares |  |  |  |  | $ 2.27 |  |  |
Percent of increase in stock price |  |  |  |  |  |  |  | 150.00%
Percent of target award earned |  |  |  |  |  |  |  | 200.00%
Long Term Incentive Plan Fiscal 2021 | Absolute Total Shareholder Return Performance Shares | Stock Price Increase 25 Percent |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percent of increase in stock price |  |  |  |  | 25.00% |  |  |
Percent of target award earned |  |  |  |  | 50.00% |  |  |
Long Term Incentive Plan Fiscal 2021 | Absolute Total Shareholder Return Performance Shares | Stock Price Increase 50 Percent |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percent of increase in stock price |  |  |  |  | 50.00% |  |  |
Percent of target award earned |  |  |  |  | 100.00% |  |  |
Long Term Incentive Plan Fiscal 2021 | Absolute Total Shareholder Return Performance Shares | Stock Price Increase 100 Percent |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percent of increase in stock price |  |  |  |  | 100.00% |  |  |
Percent of target award earned |  |  |  |  | 200.00% |  |  |
Long Term Incentive Plan Fiscal 2021 | Time Based Awards |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percentage of warrants vesting |  |  |  |  |  |  |  | 33.00%
Long Term Incentive Plan Fiscal 2022 |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Number of award components | item |  |  |  | 2 |  |  |  |
Common stock, shares reserved for issuance |  |  |  |  |  | 175,548 |  |
Long Term Incentive Plan Fiscal 2022 | Relative Total Shareholder Return Performance Shares |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Award Calibration Percentage |  |  |  | 100.00% |  |  |  |
Variance from Award Calibration Percentage |  |  |  | 50.00% |  |  |  |
Award Cap, Percent |  |  |  | 200.00% |  |  |  |
Award Additional Cap, Percent |  |  |  | 100.00% |  |  |  |
Threshold Consecutive Trading Days | $ |  |  |  | 20 |  |  |  |
Long Term Incentive Plan Fiscal 2022 | Time Based Awards |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percentage of warrants vesting |  |  |  | 33.00% |  |  |  |
Long Term Incentive Plan Fiscal 2023 |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Number of award components | item |  |  | 2 |  |  |  |  |
Common stock, shares reserved for issuance |  |  |  |  |  | 1,095,657 |  |
Restricted Stock Awards and Units, Granted, Shares |  |  | 2,249,890 |  |  |  |  |
Long Term Incentive Plan Fiscal 2023 | Relative Total Shareholder Return Performance Shares |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Award Calibration Percentage |  |  | 100.00% |  |  |  |  |
Variance from Award Calibration Percentage |  |  | 50.00% |  |  |  |  |
Award Cap, Percent |  |  | 200.00% |  |  |  |  |
Award Additional Cap, Percent |  |  | 100.00% |  |  |  |  |
Threshold Consecutive Trading Days | $ |  |  | 60 |  |  |  |  |
Long Term Incentive Plan Fiscal 2023 | Performance Shares |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Restricted Stock Awards and Units, Granted, Shares |  |  | 1,124,953 |  |  |  |  |
Percentage of Target Performance |  |  |  |  |  | 100.00% |  |
Long Term Incentive Plan Fiscal 2023 | Time Based Awards |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percentage of warrants vesting |  |  | 33.00% |  |  |  |  |
Restricted Stock Awards and Units, Granted, Shares |  |  | 1,124,937 |  |  |  |  |
Long Term Incentive Plan Fiscal 2023 | Time Based Awards | Salaried Employees |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percentage of warrants vesting |  |  |  |  |  | 33.00% |  |
Restricted Stock Awards and Units, Granted, Shares |  |  |  |  |  | 3,413,299 |  |
Long Term Incentive Plan Fiscal 2023 | Performance and Time Based Units |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Restricted Stock or Unit Expense weighted average period |  |  | 3 years |  |  |  |  |
Maximum |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Restricted stock awards, general vesting period |  |  |  |  |  | 4 years |  |
Maximum | Third Amended and Restated 2018 Omnibus Incentive Plan |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Shares to be issued on exercise of stock options |  | 1,833,333 |  |  |  |  |  |
Additional number of shares authorized |  | 6,000,000 |  |  |  |  |  |
Number of shares authorized |  | 18,333,333 |  |  |  |  |  |
Maximum | Third Amended and Restated 2018 Omnibus Incentive Plan | Performance Shares |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Common stock, shares reserved for issuance |  |  |  |  |  | 1,481,395 |  |
Maximum | Amended and Restated 2018 Employee Stock Purchase Plan |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Number of shares that can be purchased by individual participant |  | 1,000 |  |  |  |  |  |
Additional number of shares authorized |  | 500,000 |  |  |  |  |  |
Number of shares authorized |  | 541,667 |  |  |  |  |  |
Minimum |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Restricted stock awards, general vesting period |  |  |  |  |  | 3 years |  |

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