Employee Benefit Plans - Summary of Components of Net Periodic Pension Cost of Defined Benefit Plan Recognized (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2021
Employee Benefit Plans
Reduction in service cost	$ (34)		$ (137)
Service cost		$ 31
Interest cost	34	37
Amortization of prior service cost	21	21
Net periodic benefit cost	$ 21	$ 89