Employee Benefit Plans (Pension and Other Postretirement Benefits) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Components of net periodic cost:
Interest cost	$ 112	$ 174
Expected return on plan assets	(203)	(266)
Net amortization and deferral	272	285
Net Periodic Pension Cost	$ 181	$ 193