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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020
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 | 10,654 | $ 9,618 | $ 10,846
Additions charged to expense | 1,368 | 2,182 | 1,736
Additions charged to other accounts | 0 | 0 | 15
Deductions | (1,884) | (1,146) | (2,979)
Balance at End of Period | 10,138 | 10,654 | 9,618
Deferred Tax Asset Valuation Allowance: |  |  |
Valuation and qualifying accounts [Roll Forward] |  |  |
Balance at Beginning of Period | 28,619 | 22,527 | 15,352
Additions charged to expense | (1,300) | 5,709 | 6,982
Additions charged to other accounts | 0 | 0 | 0
Other additions | 233 | 383 | 193
Balance at End of Period | $ 27,552 | $ 28,619 | $ 22,527

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