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Share Transactions (Details) - USD ($) $ / shares in Units, $ in Millions | 6 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2024 | Sep. 30, 2023 | Feb. 08, 2023 | Jan. 11, 2021
Share Transactions [Line Items] |  |  |  |
Share repurchase program | $ 6.9 |  |  |
Aggregate repurchased shares |  |  |  | 703,219
Total cost | $ 28.1 |  |  |
Percentage of shares outstanding | 25.80% |  |  |
Stock repurchased weighted average price | $ 39.93 |  |  |
Number of share transferred | 53,348 |  |  |
Treasury shares |  | 125 |  |
Treasury Stock [Member] |  |  |  |
Share Transactions [Line Items] |  |  |  |
Treasury shares | 0 |  |  |
Minimum [Member] |  |  |  |
Share Transactions [Line Items] |  |  |  |
Share repurchase program |  |  | $ 25.0 |
Maximum [Member] |  |  |  |
Share Transactions [Line Items] |  |  |  |
Share repurchase program |  |  | $ 35.0 |

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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. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481520/505-30-50-4 + Details
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- Definition Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481520/505-30-50-4 + Details
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- Definition Number of shares authorized to be purchased under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481520/505-30-50-4 + Details
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