Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition - Additional Information (Detail)

v3.20.2
Revenue Recognition - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Mar. 31, 2020
Contract With Customer Assets And Liabilities [Line Items]      
Percentage of revenue from contracts recognized over time 40.00% 55.00%  
Percentage of revenue from contracts recognized upon shipment 60.00% 45.00%  
Revenue recognized included in contract liability $ 7,350    
Unbilled revenue (contract assets) 1,091    
Contract with customer liability increase in contract asset due to contract progress. 1,751    
Contract with customer liability offset by invoicing to customers. 660    
Customer deposits, current 4,099    
Contract with customer liability offset by new customer deposits. 11,449    
Receivables billed but not paid under retainage provisions in its customer contracts 2,926   $ 2,016
Amortization expense 10 $ 46  
Revenue remaining unsatisfied performance obligations amount 107,220    
Customer Deposit [Member]      
Contract With Customer Assets And Liabilities [Line Items]      
Contract liabilities 8,823   3,660
Prepaid Expenses and Other Current Assets [Member]      
Contract With Customer Assets And Liabilities [Line Items]      
Capitalized costs, net of amortization $ 72   $ 45