Leases (Components Of Lease Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Amortization of right-of-use assets	$ 25	$ 38	$ 49
Interest on lease liabilities	1	2
Operating lease cost	32,877	33,422
Variable lease cost	1,501	619
Total lease cost	$ 34,404	$ 34,081