Employee Benefit Plans (Components of Net Periodic Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Retirement Benefits [Abstract]
Service Cost	$ 6,020	$ 5,493	$ 4,351
Interest Cost	1,576	1,469	1,340
Expected Return on Assets	(1,831)	(1,539)	(1,252)
Amortization of Prior Service Cost	487	487	406
Total Net Periodic Benefit Costs	$ 6,252	$ 5,910	$ 4,845