Income Taxes (Schedule Of Income Tax Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Taxes [Abstract]
Federal	$ 9,113	$ 27,815	$ 29,241
State and local	7,354	8,415	3,954
Total current	16,467	36,230	33,195
Federal	2,528	(3,182)	920
State and local	646	(973)	(246)
Total deferred	3,174	(4,155)	674
Income tax expense	$ 19,641	$ 32,075	$ 33,869