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Acquisition - Schedule of Purchase Price Allocated to Intangible Assets on Preliminary Basis (Detail) - Barber-Nichols, Inc. [Member] $ in Thousands | 6 Months Ended
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Sep. 30, 2021 USD ($)
Business Acquisition [Line Items] |
Intangibles subject to amortization, Fair Value Assigned | $ 25,800
Intangibles not subject to amortization, Fair Value Assigned | 7,400
Customer Relationships [Member] |
Business Acquisition [Line Items] |
Intangibles subject to amortization, Fair Value Assigned | $ 11,800
Intangibles subject to amortization, Weighted Average Amortization Period | 20 years
Technology and Technical Know How [Member] |
Business Acquisition [Line Items] |
Intangibles subject to amortization, Fair Value Assigned | $ 10,100
Intangibles subject to amortization, Weighted Average Amortization Period | 20 years
Backlog [Member] |
Business Acquisition [Line Items] |
Intangibles subject to amortization, Fair Value Assigned | $ 3,900
Intangibles subject to amortization, Weighted Average Amortization Period | 4 years
Tradename [Member] |
Business Acquisition [Line Items] |
Intangibles not subject to amortization, Fair Value Assigned | $ 7,400
Intangibles not subject to amortization, Weighted Average Amortization Period | Indefinite

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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