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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2021
Deferred Tax Assets, Dissolved |  |  |
Valuation and qualifying accounts [Roll Forward] |  |  |
Valuation allowance, increase (decrease) |  | $ (5,004) |
Deferred Tax Assets, Net Operating Loss |  |  |
Valuation and qualifying accounts [Roll Forward] |  |  |
Valuation allowance, increase (decrease) |  | 3,704 |
Allowance for Doubtful Accounts: |  |  |
Valuation and qualifying accounts [Roll Forward] |  |  |
Balance at Beginning of Period | $ 10,138 | 10,654 | $ 9,618
(Credited) Charged to Expense | 1,625 | 1,368 | 2,182
Additions charged to other accounts | 0 | 0 | 0
Other (Deductions) Additions | (979) | (1,884) | (1,146)
Balance at End of Period | 10,784 | 10,138 | 10,654
Deferred Tax Asset Valuation Allowance: |  |  |
Valuation and qualifying accounts [Roll Forward] |  |  |
Balance at Beginning of Period | 27,552 | 28,619 | 22,527
(Credited) Charged to Expense | (4,709) | (1,300) | 5,709
Additions charged to other accounts | 0 | 0 | 0
Other (Deductions) Additions | (337) | 233 | 383
Balance at End of Period | $ 22,506 | $ 27,552 | $ 28,619

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- Definition SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge (Credit) to Cost and Expense + References No definition available. + Details
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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-2 + Details
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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column B)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column E)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-4 + Details
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