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v3.23.3

Stock-Based Compensation - Schedule of Nonvested Restricted Stock Units Activity (Details) - shares | 12 Months Ended
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Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2021
Restricted Stock Units (RSUs) [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting period | 2 years | 2 years | 2 years
Annual Equity Program [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Percentage Of Annual Performance Stock Grant Vests In Equal Quarterly Increments | 50.00% |  |
Percentage Of Annual Performance Stock Grant Based On Achieving Specified Annual Performance Goals | 50.00% |  |
Annual Equity Program [Member] | CEO |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Percentage Of Annual Performance Stock Grant Vests In Equal Quarterly Increments | 40.00% |  |
Percentage Of Annual Performance Stock Grant Based On Achieving Specified Annual Performance Goals | 60.00% |  |
Annual Equity Program [Member] | November 1, 2022 | Restricted Stock Units (RSUs) [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Equity Instruments Other than Options, Grants in Period | 240,808 |  |
Award vesting period | 3 years |  |
Annual Equity Program [Member] | November 1, 2021 [Member] | Restricted Stock Units (RSUs) [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Equity Instruments Other than Options, Grants in Period | 160,384 |  |
Award vesting period | 3 years |  |
Annual Equity Program [Member] | November 2, 2020 | Restricted Stock Units (RSUs) [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Equity Instruments Other than Options, Grants in Period | 257,568 |  |
Award vesting period | 3 years |  |
Annual Equity Program [Member] | November 1, 2019 [Member] | Restricted Stock Units (RSUs) [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Equity Instruments Other than Options, Grants in Period | 228,616 |  |
Award vesting period | 3 years |  |

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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. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Line items represent financial concepts included in a table. 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