ESOP, period for which sale of shares is restricted

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Employer Matching Contribution Percentage

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Restricted stock awards, general vesting period.

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Restricted Stock or Unit Expense weighted average period.

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Share based compensation arrangement by share based award options, grant in period, grant date increase in fair value.

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Share based compensation arrangement by share-based payment award, rate of vesting

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Stock Issuance Terms

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Aggregate number of common shares reserved for future issuance.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Amount of cost for defined contribution plan.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Noninterest expense related to directors' fees which are fees paid by an Entity to its directors. Directors' fees may be paid in addition to salary and other benefits.

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Amount of noncash expense for award of restricted stock or unit under share-based payment arrangement.

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- Definition

Description of terms of share-based payment arrangement. Includes, but is not limited to, type of award or grantee and reason for issuance.

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- Definition

Date the equity-based award expires, in CCYY-MM-DD format.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Net number of non-option equity instruments granted to participants.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Gross number of share options (or share units) granted during the period.

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No definition available.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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- Definition

Other than shares newly issued, the number of additional shares issued (for example, a stock split) or canceled (for example, to correct a share issuance), during the period under the plan.

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- Definition

Per share weighted-average price paid for shares purchased on open market for issuance under share-based payment arrangement.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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- Definition

Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.

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No definition available.

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- Definition

Number of share options (or share units) exercised during the current period.

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Benefit Plans - Additional Information (Details)			12 Months Ended
Benefit Plans - Additional Information (Details)	Aug. 24, 2020 shares	May 08, 2020 USD ($) shares	Oct. 31, 2020 USD ($) $ / shares shares	Oct. 31, 2019 USD ($) shares	Oct. 31, 2018 USD ($) $ / shares shares	Aug. 26, 2022 shares	May 11, 2020 shares	Aug. 26, 2019 shares	May 08, 2019 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares authorized			337,500,000	225,000,000			112,500,000		225,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Description			Performance awards were issued assuming participants achieve 100% target performance. Should participants achieve the 200% performance level, they will receive up to 668,030 additional RSUs.
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Date	Oct. 31, 2022
Share Based Compensation Arrangement by Share-Based Payment Award, Rate of Vesting	0.333
Options granted			0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value \| $ / shares					$ 21.36
Options exercised			0	0	0
Intrinsic value, options outstanding \| $			$ 0
Intrinsic value, options exercisable \| $			$ 0
Restricted Stock Awards and Units, Granted, Shares			1,978,108
Stock Issued During Period, Shares, Issued for Services			58,303	29,454	13,226
Noninterest Expense Directors Fees \| $			$ 100,000	$ 100,000	$ 300,000
ESOP, period for which sale of shares is restricted			6 months
Employer Matching Contribution Percentage			2.00%
Defined Contribution Plan, Cost Recognized \| $			$ 300,000	$ 500,000	$ 500,000
Restricted Stock Awards and Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted Stock or Unit Expense \| $			$ 5,300,000
Restricted Stock or Unit Expense weighted average period			2 years
Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Date			Aug. 26, 2022
Share-based compensation arrangement by share-based payment award, options, vested and expected to vest, outstanding, number						500,000
Restricted Stock Units [Member] \| President and Chief Executive Officer [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted Stock Awards and Units, Granted, Shares			1,000,000
Performance Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Additional shares issued upon performance			668,030
Performance shares expensed period			3 years
TSR Performance Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Additional shares issued upon performance			334,015
Performance awards valued per share \| $ / shares			$ 4.62
Time Based Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Additional shares issued upon performance			167,008
Absolute Performance Shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Additional shares issued upon performance			334,015
Performance awards valued per share \| $ / shares			$ 5.17
Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock awards, general vesting period			3 years
Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock awards, general vesting period			4 years
Maximum [Member] \| Employee Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares reserved for future issuance and sale					30,248
2018 Omnibus Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares authorized		4,000,000						4,333,333
Number of shares reserved for future issuance and sale								1,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant			2,013,563
Share-based Compensation Arrangement by Share-based Payment Award, Description	The LTI Plan consists of three award components: (1) relative total shareholder return (“TSR”) performance shares, (2) absolute TSR performance shares, and (3) time-vesting restricted stock units
2018 Omnibus Incentive Plan [Member] \| Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share Based Compensation Arrangement By Share Based Award Options, Grant In Period, Grant Date Increase In Fair Value \| $		$ 200,000
2018 Omnibus Incentive Plan [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share Based Compensation Arrangement By Share Based Award Options, Grant In Period, Grant Date Increase In Fair Value \| $		$ 250,000
LTI Plan [Member] \| Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted Stock Awards and Units, Granted, Shares	835,038
Employee Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock Issuance Terms			85.00%