Income Taxes (Schedule Of Income Tax Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Taxes [Abstract]
Federal	$ 27,815	$ 29,241	$ 19,417
State and local	8,415	3,954	2,685
Total current	36,230	33,195	22,102
Federal	(3,182)	920	1,357
State and local	(973)	(246)	150
Total deferred	(4,155)	674	1,507
Income tax expense	$ 32,075	$ 33,869	$ 23,609