Accrued Payroll and Benefits - Schedule of Accrued Payroll and Benefits (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Statement Of Financial Position [Abstract]
Accrued bonuses	$ 1,800	$ 5,416
Accrued paid time off	2,355	2,067
Accrued payroll	13,273	9,133
Accrued other	5,136	4,565
Total accrued payroll and benefits	$ 22,564	$ 21,181