Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Accrued Liabilities and Other Liabilities [Abstract]
Accrued payroll and related liabilities	$ 7,975	$ 4,999
Accrued bonus and commissions	7,652	448
Accrued insurance liabilities	1,008	1,543
Accrued job costs	3,131	8,563
Assurance-type warranty liabilities	4,056	2,886
Other accrued liabilities	925	1,606
Total	$ 24,747	$ 20,045