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Revenue Recognition - Additional Information (Detail) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Jun. 01, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Mar. 31, 2021
Contract With Customer Assets And Liabilities [Line Items] |  |  |  |  |  |
Percentage of revenue from contracts recognized over time |  | 75.00% | 60.00% | 75.00% | 50.00% |
Percentage of revenue from contracts recognized upon shipment |  | 25.00% | 40.00% | 25.00% | 50.00% |
Revenue recognized included in contract liability |  | $ 5,659 |  | $ 18,951 |  |
Unbilled revenue (contract assets) |  |  |  | 4,936 |  |
Contract with customer liability increase in contract asset due to contract progress. |  |  |  | 36,141 |  |
Contract with customer liability offset by invoicing to customers. |  |  |  | 38,273 |  |
Customer deposits, current |  |  |  | 13,606 |  |
Contract with customer liability offset by new customer deposits. |  |  |  | 26,509 |  |
Acquisition of contract liabilities | $ 6,048 |  |  |  |  |
Receivables billed but not paid under retainage provisions in its customer contracts |  | 2,786 |  | 2,786 |  | $ 3,747
Amortization expense |  | 12 | $ 9 | 46 | $ 561 |
Revenue remaining unsatisfied performance obligations amount |  | 272,599 |  | 272,599 |  |
Barber-Nichols, LLC. (BN) [Member] |  |  |  |  |  |
Contract With Customer Assets And Liabilities [Line Items] |  |  |  |  |  |
Acquisition of contract assets |  |  |  | 7,068 |  |
Acquisition of contract liabilities |  |  |  | 6,048 |  |
Customer Deposit [Member] |  |  |  |  |  |
Contract With Customer Assets And Liabilities [Line Items] |  |  |  |  |  |
Contract liabilities |  | 6,468 |  | 6,468 |  | 1,603
Prepaid Expenses and Other Current Assets [Member] |  |  |  |  |  |
Contract With Customer Assets And Liabilities [Line Items] |  |  |  |  |  |
Capitalized costs, net of amortization |  | $ 149 |  | $ 149 |  | $ 39

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