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Segment Information (Purchase Accounting and Related Adjustments) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Corporate and reconciling items |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Purchase accounting and related adjustments | $ 39.0 | $ 36.9 | $ 78.7 | $ 81.3
General and administrative expense |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Purchase accounting and related adjustments | 1.7 | 2.2 | 3.8 | 12.2
General and administrative expense | Corporate and reconciling items |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Purchase accounting and related adjustments | 1.7 | 2.2 | 3.8 | 12.2
Amortization of purchase price |  |  |  | 1.3
Depreciation and amortization expense | Corporate and reconciling items |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Purchase accounting and related adjustments | $ 37.3 | $ 34.7 | $ 74.9 | $ 69.1

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- Definition The amortization of non-cash fair value adjustments to the assets and liabilities acquired in the acquisition of businesses. + References No definition available. + Details
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