Allowance for Doubtful Accounts - Schedule of Allowance for Doubtful Accounts (Details) $ in Millions |
9 Months Ended |
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Jun. 30, 2026
USD ($)
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| SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] | |
| Balance as of September 30, 2025 | $ 53.9 |
| Provision for bad debts | 12.9 |
| Allowance charge-offs | (5.8) |
| Other | (0.2) |
| Balance as of June 30, 2026 | 60.8 |
| Bad debt expense (reversal) | $ (0.3) |
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- Definition SEC Schedule, 12-09, Valuation Allowances and Reserves, Credit Loss Expense (Reversal) Not Included in Allowance No definition available.
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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 valuation and qualifying accounts and reserves. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase in valuation and qualifying accounts and reserves from charge to accounts other than cost and expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of decrease in valuation and qualifying accounts and reserves. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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