Supplementary Balance Sheet Information - Allowance for Credit Losses on Accounts Receivables (Details) - USD ($) $ in Thousands |
9 Months Ended | |
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Jun. 30, 2026 |
Jun. 30, 2025 |
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| Accounts Receivable, Allowance for Credit Loss [Roll Forward] | ||
| Balance at beginning of period | $ 4,649 | $ 5,349 |
| Provisions | 2,839 | 2,546 |
| Payments received | (2,910) | (1,819) |
| Write-offs and adjustments | (625) | (550) |
| Balance at end of period | $ 3,953 | $ 5,526 |
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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 Amount of increase in allowance for credit loss on accounts receivable, from recovery. 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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