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Acquisition, Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Mar. 31, 2023
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Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross Carrying Value | $ 733,195 | $ 733,946
Accumulated Amortization | 285,608 | 238,531
Net Carrying Value | 447,587 | 495,415
Indefinite-Lived Intangible Assets (Excluding Goodwill) [Abstract] |  |
Intangible assets, gross | 923,395 | 924,146
Intangible assets, net | 637,787 | 685,615
Trade name |  |
Indefinite-Lived Intangible Assets (Excluding Goodwill) [Abstract] |  |
Unamortizable intangible assets | 190,200 | 190,200
Programs and contract assets, channel relationships, and other amortizable intangible assets |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross Carrying Value | 591,894 | 599,794
Accumulated Amortization | 203,365 | 169,316
Net Carrying Value | 388,529 | 430,478
Software |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross Carrying Value | 141,301 | 134,152
Accumulated Amortization | 82,243 | 69,215
Net Carrying Value | $ 59,058 | $ 64,937

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