Employee Benefit Plans - Summary of Changes in Benefit Obligations of Defined Benefit Plan Recognized (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Employee Benefits and Share-based Compensation, Noncash [Abstract]
Benefit obligation, beginning of year	$ 2,747	$ 1,187	$ 1,023
Service cost	689	1,460	121
Interest cost	135	101	43
Benefit obligation, end of year	$ 3,571	$ 2,747	$ 1,187