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Earnings per Share - Narrative (Details) |  | 12 Months Ended
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Nov. 07, 2023 | Sep. 30, 2023 shares | Sep. 30, 2022 shares | Sep. 30, 2021 shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |
Antidilutive securities (in shares) |  | 247,771 | 451,907 | 298,786
Subsequent Event |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |
Stock split, conversion ratio | 1.5 |  |  |

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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- Definition Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SAB TOPIC 4.C) -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480008/505-10-S99-4 + Details
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