Employee Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Retirement Benefits [Abstract]
Expected contribution in next fiscal year	$ 600		$ 600
Contribution made			300
Net periodic benefit:
Interest cost	164	$ 208	328	$ 416
Expected return on plan assets	(276)	(252)	(552)	(505)
Amortization of net actuarial loss	24	35	48	70
Net periodic benefit	$ (88)	$ (9)	$ (176)	$ (19)