Summary of Significant Accounting Policies (Schedule of Allowance for Uncollectible Accounts) (Details) - USD ($) $ in Thousands |
9 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Allowance for Uncollectible Accounts [Roll Forward] | ||
| Balance at Beginning of Period | $ 17,099 | $ 26,194 |
| Additions Charged to Costs and Expenses | 14,903 | 17,758 |
| Discounts on Purchased Receivables | 912 | 807 |
| Net Accounts Receivable Written-Off | (9,303) | (21,027) |
| Balance at End of Period | $ 23,611 | $ 23,732 |
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- Definition Amount of increase from purchase of accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of allowance for credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of direct write-downs of accounts receivable charged against the allowance. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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