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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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