Debt - Schedule of Short-Term Borrowings and Long Term Debt (Details) - USD ($) $ in Millions |
Jun. 30, 2025 |
Sep. 30, 2024 |
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| Debt Instrument [Line Items] | ||
| Debt issuance costs and discounts | $ (6.9) | $ (5.6) |
| Total debt | 1,079.7 | 1,093.8 |
| Current portion of long-term debt | 23.8 | 23.8 |
| Long-term debt | 1,055.9 | 1,070.0 |
| Revolver | ||
| Debt Instrument [Line Items] | ||
| Total borrowing capacity remaining | 475.0 | |
| Line of Credit | Revolver | ||
| Debt Instrument [Line Items] | ||
| Debt gross | 130.0 | 125.0 |
| Long-term debt | 130.0 | |
| 2031 Notes | Senior Notes | ||
| Debt Instrument [Line Items] | ||
| Debt gross | 535.0 | 535.0 |
| Term Loan A | Line of Credit | ||
| Debt Instrument [Line Items] | ||
| Debt gross | 421.6 | $ 439.4 |
| Term Loan A | Line of Credit | Revolver | ||
| Debt Instrument [Line Items] | ||
| Total borrowing capacity remaining | 341.5 | |
| Letters of credit outstanding | $ 3.5 |
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of unamortized debt discount (premium) and debt issuance costs. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Represents the aggregate of total long-term debt, including current maturities and short-term debt. No definition available.
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as current. Excludes lease obligation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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