General form of registration statement for all companies including face-amount certificate companies

Revenue and Receivables - Additional Information (Detail)

v3.22.1
Revenue and Receivables - Additional Information (Detail) - USD ($)
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
RevenueFromContractWithCustomerAndReceivablesLineItems [Line Items]    
Revenue, Remaining performance obligation, Amount $ 73,900,000  
Revenue remaining performance obligation due in year 2022 67,100,000  
Revenue remaining performance obligation due in year 2023 6,100,000  
Revenue remaining performance obligation due in year 2024 500,000,000  
Revenue remaining performance obligation due thereafter 200,000,000  
Contract with customer, Liability, Revenue recognized 17,200,000 $ 9,300,000
Accounts receivable net, Current 3,723,000 2,526,000
Loss on contracts 1,300,000 4,800,000
Impairments on contract with customer assets $ 0 0
Maximum [Member]    
RevenueFromContractWithCustomerAndReceivablesLineItems [Line Items]    
Accounts receivable, Consideration due from customers, Due term 1 year  
GovernmentCustomers [Member] | UNITED STATES | Government Contract [Member]    
RevenueFromContractWithCustomerAndReceivablesLineItems [Line Items]    
Accounts receivable net, Current $ 2,100,000 $ 1,600,000
Time-and-materials Contract [Member]    
RevenueFromContractWithCustomerAndReceivablesLineItems [Line Items]    
Contract with customer, Billing terms monthly or semi-monthly basis.  
Fixed-price Contract [Member]    
RevenueFromContractWithCustomerAndReceivablesLineItems [Line Items]    
Contract with customer, Billing terms monthly  
Operations [Member]    
RevenueFromContractWithCustomerAndReceivablesLineItems [Line Items]    
Revenue, Performance obligation, Description of payment terms monthly