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Income Taxes - Narrative (Details) $ in Millions |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Dec. 01, 2025 service_center_store | Dec. 31, 2025 service_center_store | Dec. 31, 2024 service_center_store | Mar. 31, 2026 USD ($)
Effective Income Tax Rate Reconciliation [Line Items] |  |  |  |
Nondeductible goodwill, tax effect |  |  |  | $ 20.0
Divestiture, income tax expense |  |  |  | 6.3
Nondeductible transaction costs, income tax expense |  |  |  | $ 4.8
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 |
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 |  |  |

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