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Segment Information (Purchase Accounting and Related Adjustments) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Corporate and reconciling items |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Purchase accounting and related adjustments | $ 44.5 | $ 49.6 | $ 94.5 | $ 96.1
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 | 0.1 | 0.6 | 0.5 | 0.9
General and administrative expense |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Purchase accounting and related adjustments | 10.8 | 11.5 | 27.2 | 20.2
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 | 10.8 | 11.5 | 27.2 | 20.2
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 | $ 33.6 | $ 37.5 | $ 66.8 | $ 75.0

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