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Acquisitions and Dispositions - Dispositions (Details) $ in Millions |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Dec. 01, 2025 service_center_store | Dec. 31, 2025 service_center_store | Dec. 31, 2024 service_center_store | Jun. 30, 2026 USD ($) | Jun. 30, 2025 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Gain (loss) on sale of operations |  |  |  | $ (43.6) | $ 71.6
Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [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 |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Number of service center stores sold | service_center_store | 45 |  |  |  |
Net assets divested |  |  |  | 90.0 |
Gain (loss) on sale of operations |  |  |  | $ (57.9) |

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