Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition - Additional Information (Detail)

v3.21.2
Revenue Recognition - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Mar. 31, 2021
Contract With Customer Assets And Liabilities [Line Items]      
Percentage of revenue from contracts recognized over time 65.00% 40.00%  
Percentage of revenue from contracts recognized upon shipment 35.00% 60.00%  
Revenue recognized included in contract liability $ 7,115    
Unbilled revenue (contract assets) 8,539    
Contract with customer liability increase in contract asset due to contract progress. 6,397    
Contract with customer liability offset by invoicing to customers. 4,926    
Customer deposits, current 2,975    
Contract with customer liability offset by new customer deposits. 4,042    
Receivables billed but not paid under retainage provisions in its customer contracts 3,308   $ 3,747
Amortization expense 10 $ 10  
Revenue remaining unsatisfied performance obligations amount 235,938    
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 1,335   1,603
Prepaid Expenses and Other Current Assets [Member]      
Contract With Customer Assets And Liabilities [Line Items]      
Capitalized costs, net of amortization $ 96   $ 39