Fair Value of Financial Instruments (Reconciliation Of Fair Valued Assets Measured On A Recurring Basis) (Details) - Fair Value, Inputs, Level 3 [Member] - Collateralized debt obligations [Member] - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	$ 14,105	$ 16,258	$ 15,871	$ 17,192
Total losses realized/unrealized: Included in other comprehensive income loss	679	(376)	(1,087)	(1,310)
Ending balance	$ 14,784	$ 15,882	$ 14,784	$ 15,882