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Restructuring - Restructuring Expenses (Details) - USD ($) $ in Thousands	12 Months Ended				27 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024	Mar. 31, 2026
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 3,400	$ 62,300		$ 44,400
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance	18,400	700
Fiscal 2026 charges	4,100	41,400
Payments	(15,400)	(23,700)
Restructuring Reserve, Ending Balance	7,100	18,400		700	$ 7,100
Fiscal 2024/2025 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	3,400	62,300	$ 110,100	44,400
Employee Severance \| Fiscal 2024/2025 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	2,600	29,000		700
Contract Termination \| Fiscal 2024/2025 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	1,500	12,400		0
Reduced Depreciation \| Fiscal 2024/2025 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	0	4,700		25,400
Product Rationalization \| Fiscal 2024/2025 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ (700)	$ 16,200		$ 18,300	$ 33,900