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Debt - Interest Expense Recognized Related to Convertible Notes (Details) - Convertible Debt [Member] - USD ($)	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Interest expense on Convertible Notes
Contractual interest expense	$ 3,521,000	$ 3,200,000	$ 9,000
Accretion of debt discount	1,020,000	853,000	0
Amortization of issuance costs	142,000	119,000	0
Total interest expense	$ 4,683,000	$ 4,172,000	$ 9,000

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Amount of amortization expense attributable to debt issuance costs.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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