Income Taxes (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2026 |
Mar. 31, 2025 |
Sep. 30, 2025 |
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| Income Tax Disclosure [Abstract] | |||||
| Income tax expense | $ 11.7 | $ 9.1 | $ 17.1 | $ 14.5 | |
| Effective Income Tax Rate Reconciliation, Percent | 26.70% | 22.40% | 26.40% | 23.20% | |
| Deferred Tax Liabilities, Gross | $ 83.7 | $ 83.7 | $ 85.6 | ||
| Deferred Tax Assets, Valuation Allowance | 0.6 | 0.6 | 0.6 | ||
| Deferred tax liability, net | $ 84.3 | $ 84.3 | $ 86.2 | ||
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- Definition Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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