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Segment Information (Purchase Accounting and Related Adjustments) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023
Corporate and reconciling items |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Purchase accounting and related adjustments | $ 38.3 | $ 39.2 | $ 117.1 | $ 120.5
General and administrative expense |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Purchase accounting and related adjustments | 2.9 | 2.8 | 6.8 | 15.0
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 | 2.9 | 2.8 | 6.8 | 15.0
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 | $ 35.4 | $ 36.4 | $ 110.3 | $ 105.5

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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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