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Acquisition, Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Mar. 31, 2024
--- | --- | ---
Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross Carrying Value | $ 788,004 | $ 738,179
Accumulated Amortization | 398,142 | 327,336
Net Carrying Value | 389,862 | 410,843
Indefinite-Lived Intangible Assets (Excluding Goodwill) [Abstract] |  |
Intangible assets, gross | 978,204 | 928,379
Intangible assets, net | 580,062 | 601,043
Trade name |  |
Indefinite-Lived Intangible Assets (Excluding Goodwill) [Abstract] |  |
Unamortizable intangible assets | 190,200 | 190,200
Customer contracts and related customer relationships |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross Carrying Value | 618,894 | 591,895
Accumulated Amortization | 287,326 | 237,764
Net Carrying Value | 331,568 | 354,131
Software |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross Carrying Value | 169,110 | 146,284
Accumulated Amortization | 110,816 | 89,572
Net Carrying Value | $ 58,294 | $ 56,712

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