Employee Benefit Plans (Components of Net Periodic Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Retirement Benefits [Abstract]
Service Cost	$ 5,181	$ 6,020	$ 5,493
Interest Cost	1,804	1,576	1,469
Expected Return on Assets	(1,959)	(1,831)	(1,539)
Amortization of Prior Service Cost	487	487	487
Total Net Periodic Benefit Costs	$ 5,513	$ 6,252	$ 5,910