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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to the disposition of a business not qualifying as a discontinued operation.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Disposal Group, Number Of Service Center Stores Sold

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Income Taxes - Narrative (Details) $ in Millions		3 Months Ended		9 Months Ended
Income Taxes - Narrative (Details) $ in Millions	Dec. 01, 2025 service_center_store	Dec. 31, 2025 service_center_store	Dec. 31, 2024 service_center_store	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)
Effective Income Tax Rate Reconciliation [Line Items]
Gain (loss) on sale of operations				$ (43.6)	$ 71.6
Divestiture, income tax expense				6.3
Nondeductible transaction costs, income tax expense				4.3
Disposal Group, Disposed of by Sale, Not Discontinued Operations
Effective Income Tax Rate Reconciliation [Line Items]
Number of service center stores sold \| service_center_store		10	39
Gain (loss) on sale of operations				14.3	$ 74.3
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Breeze Autocare Stores
Effective Income Tax Rate Reconciliation [Line Items]
Number of service center stores sold \| service_center_store	45
Gain (loss) on sale of operations				$ (57.9)