Employee Benefit Plans (Pension and Other Postretirement Benefits) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Components of net periodic cost:
Interest cost	$ 242	$ 147	$ 522	$ 442
Expected return on plan assets	(370)	(270)	(798)	(810)
Net amortization and deferral	396	218	855	655
Settlement	0	0	0	151
Net Periodic Pension Cost	$ 268	$ 95	$ 579	$ 438