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Intangible Assets - Schedule of Intangible assets (Detail) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Mar. 31, 2023
Business Acquisition [Line Items] |  |
Intangibles subject to amortization, Gross Carrying Amount | $ 33,000 |
Intangibles subject to amortization, Accumulated Amortization | 6,484 |
Intangibles subject to amortization, Net Carrying Amount | 26,516 |
Intangibles not subject to amortization, Gross Carrying Amount | 6,700 |
Intangibles not subject to amortization, Net Carrying Amount | 6,700 |
Customer Relationships [Member] |  |
Business Acquisition [Line Items] |  |
Intangibles subject to amortization, Gross Carrying Amount | 16,200 |
Intangibles subject to amortization, Accumulated Amortization | 1,616 |
Intangibles subject to amortization, Net Carrying Amount | $ 14,584 | $ 10,718
Customer Relationships [Member] | Maximum [Member] |  |
Business Acquisition [Line Items] |  |
Intangibles subject to amortization, Weighted Average Amortization Period | 20 years |
Customer Relationships [Member] | Minimum [Member] |  |
Business Acquisition [Line Items] |  |
Intangibles subject to amortization, Weighted Average Amortization Period | 8 years |
Technology and Technical Know-How [Member] |  |
Business Acquisition [Line Items] |  |
Intangibles subject to amortization, Gross Carrying Amount | $ 12,600 |
Intangibles subject to amortization, Accumulated Amortization | 1,346 |
Intangibles subject to amortization, Net Carrying Amount | $ 11,254 | $ 9,174
Technology and Technical Know-How [Member] | Maximum [Member] |  |
Business Acquisition [Line Items] |  |
Intangibles subject to amortization, Weighted Average Amortization Period | 20 years |
Technology and Technical Know-How [Member] | Minimum [Member] |  |
Business Acquisition [Line Items] |  |
Intangibles subject to amortization, Weighted Average Amortization Period | 10 years |
Backlog [Member] |  |
Business Acquisition [Line Items] |  |
Intangibles subject to amortization, Weighted Average Amortization Period | 4 years |
Intangibles subject to amortization, Gross Carrying Amount | $ 3,900 |
Intangibles subject to amortization, Accumulated Amortization | 3,505 |
Intangibles subject to amortization, Net Carrying Amount | $ 395 |
Tradename [Member] |  |
Business Acquisition [Line Items] |  |
Intangibles subject to amortization, Weighted Average Amortization Period | 3 years |
Intangibles subject to amortization, Gross Carrying Amount | $ 300 |
Intangibles subject to amortization, Accumulated Amortization | 17 |
Intangibles subject to amortization, Net Carrying Amount | $ 283 |
Tradename [Member] |  |
Business Acquisition [Line Items] |  |
Intangibles not subject to amortization, Weighted Average Amortization Period | Indefinite |
Intangibles not subject to amortization, Gross Carrying Amount | $ 6,700 |
Intangibles not subject to amortization, Net Carrying Amount | $ 6,700 |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-1 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479907/805-20-50-5 + Details
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