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Acquisition - Schedule of Recognized Fair Value of Identified Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Mar. 31, 2024
Business Acquisition [Line Items]
Goodwill	$ 396,884	$ 392,569
Battletown Acquisition [Member] | Level 3 Inputs [Member]
Business Acquisition [Line Items]
Inventory	1,322
Property, Plant, and Equipment	16,815
Lease Right-of-Use Assets	757
Intangible Assets	2,500
Accrued Liabilities	(71)
Lease Obligations	(757)
Goodwill	4,315
Total Estimated Purchase Price	$ 24,881

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