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Segment Information (Purchase Accounting and Related Adjustments) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021
Corporate and reconciling items |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Purchase accounting and related adjustments | $ 53.4 | $ 50.3 | $ 151.1 | $ 144.8
Direct operating | Corporate and reconciling items |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Purchase accounting and related adjustments | 0.0 | 0.0 | 0.7 | 0.5
General and administrative expense |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Purchase accounting and related adjustments | 16.9 | 15.7 | 46.0 | 42.9
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 | 16.9 | 15.7 | 46.0 | 42.9
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 | $ 36.5 | $ 34.6 | $ 104.4 | $ 101.4

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