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Accounts Payable and Accrued Expenses - Summary of Accounts Payable and Accrued Expenses (Detail) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Payables And Accruals [Abstract]    
Trade accounts payable, including amounts due to subcontractors $ 54,994 $ 48,762
Compensation and related benefits 5,472 5,712
Accrued warranty 4,463 4,664
Contract liabilities 4,937 5,666
Short-term lease liability 2,471 2,610
Other 10,213 10,905
Total accounts payable and accrued expenses $ 82,550 $ 78,319