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Accounts Payable and Accrued Expenses - Summary of Accounts Payable and Accrued Expenses (Detail) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Payables And Accruals [Abstract]    
Trade accounts payable, including amounts due to subcontractors $ 59,694 $ 55,899
Compensation and related benefits 6,486 5,079
Accrued warranty 2,884 4,090
Contract liabilities 5,123 3,974
Short-term lease liability 2,382 2,274
Other 13,064 13,681
Total accounts payable and accrued expenses $ 89,633 $ 84,997