Accrued Payroll and Benefits - Schedule of Accrued Payroll and Benefits (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Statement Of Financial Position [Abstract]
Accrued bonuses	$ 3,810	$ 3,449
Accrued paid time off	2,206	2,154
Accrued payroll	7,174	4,470
Accrued other	2,040	959
Total accrued payroll and benefits	$ 15,230	$ 11,032