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Other Operating Income, Net - Additional Information (Detail) - Other Operating Income, Net [Member] $ in Thousands | Sep. 30, 2021 USD ($)
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Barber-Nichols, Inc. [Member] |
Other Operating Income Net [Line Items] |
Change in fair value of contingent liability | $ 1,900
Transaction Agreement [Member] |
Other Operating Income Net [Line Items] |
Accrued compensation | $ 798

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