Income Taxes (Components Of Income Tax Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Federal
Current	$ 37,391	$ 69,554	$ 18,109
Deferred	11,349	12,340	40,413
Total	48,740	81,894	58,522
State
Current	1,542	1,172	(1,430)
Deferred	1,088	828	890
Total	2,630	2,000	(540)
Current	38,933	70,726	16,679
Deferred	12,437	13,168	41,303
Income tax expense	$ 51,370	$ 83,894	$ 57,982