Employee Benefit Plans (Pension Plan Assets Fair Value Measurement Reconciliation of Unobservable Inputs) (Details) - Significant Unobservable Inputs (Level 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]
Balance as of January 1	$ 0	$ 127
Distributions	0	(127)
Balance as of December 31	$ 0	$ 0