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Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2022
Reserve for Doubtful Accounts Receivable [Member] |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at Beginning of Period | $ 1,841 | $ 87 | $ 29
Charged to Costs and Expenses | 587 | 1,765 | 163
Charged to Other Accounts | 0 | 0 | 21
Deductions | (2,349) | (11) | (126)
Balance at End of Period | 79 | 1,841 | 87
Accrued expenses |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at Beginning of Period | 0 | 760 | 0
Charged to Costs and Expenses |  | 0 | 1,073
Charged to Other Accounts |  | 0 | 0
Deductions |  | (760) | (313)
Balance at End of Period |  | 0 | 760
Product Warranty Liability [Member] |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at Beginning of Period | 578 | 441 | 626
Charged to Costs and Expenses | 410 | 364 | 386
Charged to Other Accounts | 0 | 0 | 169
Deductions | (182) | (227) | (740)
Balance at End of Period | $ 806 | $ 578 | $ 441

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