Income Taxes - Schedule of Deferred Tax Assets and Deferred Tax Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Mar. 31, 2025
Deferred tax assets:
Federal net operating loss carryforwards	$ 34,197	$ 10,649
State and foreign tax loss and credit carryforwards	34,043	8,992
Employee benefit plans	11,744	9,624
Inventory	5,015	4,243
Insurance reserves	3,576	3,060
Accrued vacation and incentive costs	5,554	2,943
Federal tax credit carryforwards	17,885	12,080
ASC 842 Lease Liability	21,695	19,996
Equity compensation	6,061	5,309
Capitalized Research and Development Costs	1,220	15,069
Interest Carryforwards	95,909	10,411
Unrealized Losses	3,755	0
Other Reserves	9,098	0
Other	1,456	341
Valuation allowance	(65,908)	(15,802)
Deferred tax assets after valuation allowance	185,300	86,915
Deferred tax liabilities:
Property, plant, and equipment	(54,018)	(5,909)
ASC 842 Right-of-Use Asset	(18,604)	(16,807)
Intangible Assets	(414,406)	(88,275)
Deferred Revenue	(5,657)	0
Unremitted Earnings	(14,868)	(1,322)
Total deferred tax liabilities	(507,553)	(112,313)
Net deferred tax assets (liabilities)	$ (322,253)	$ (25,398)

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Deferred Tax Assets, Other Reserves

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Amount of deferred tax liability attributable to taxable temporary differences.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible interest carryforward.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from in-process research and development cost acquired in business combination or from joint venture formation or both.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from postretirement benefits.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from estimated losses under self insurance.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from unrealized losses on foreign currency transactions.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.

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Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill.

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Amount of deferred tax liability attributable to taxable temporary differences from leasing arrangements.

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Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.

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Amount of deferred tax liability attributable to taxable temporary differences from tax deferred revenue or income classified as other.

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Amount of deferred tax liability attributable to taxable temporary differences from undistributed earnings of subsidiary and other recognized entity not within country of domicile. Includes, but is not limited to, other basis differences.

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