Percentage of conversion price equaling stock price.

No definition available.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

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

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

Number of shares issued under share-based payment arrangement.

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Stock-Based Compensation (Deferred Stock) - Additional Information (Detail) - shares	3 Months Ended			4 Months Ended	9 Months Ended	12 Months Ended
	Oct. 07, 2023	Jul. 15, 2023	Jul. 16, 2022	Apr. 23, 2022	Oct. 07, 2023	Jan. 01, 2021	Aug. 31, 2023
Annual Grants \| Non Employee Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate shares elected to receive		59,400
Annual Grants \| Deferred Stock \| Non Employee Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period						1 year
Aggregate shares elected to receive		15,900	58,300		5,780
Prorated Portion of Annual Grant \| Deferred Stock \| Non Employee Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares vested							1,980
Prorated Portion of Annual Grant \| Deferred Stock \| Two Newly Elected Non-employee Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate shares elected to receive	4,660
Retainer Conversion
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Retainers conversion into deferred shares					100.00%
Vesting period					1 year
Director Retainer Deferrals \| Deferred Stock \| Non Employee Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate shares elected to receive					14,249
Director Retainer Deferrals \| Omnibus Plan \| Deferred Stock \| Non Employee Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate shares elected to receive				3,640	3,479