Employee Benefit Plans - Recognized Net Periodic Benefit Cost and Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Retirement Benefits [Abstract]
Service cost	$ 52	$ 61	$ 74
Interest cost	28	51	89
Net amortization of transition obligation and actuarial loss	(43)	0	23
Net periodic benefit cost	37	112	186
Net gain	(391)	(277)	(518)
Amortization	43	0	(23)
Total recognized in other comprehensive income	(348)	(277)	(541)
Total recognized in net periodic benefit cost and other comprehensive income	$ (311)	$ (165)	$ (355)