Fair Value of Financial Instruments (Reconciliation Of Fair Valued Assets Measured On A Recurring Basis) (Details) - Fair Value, Inputs, Level 3 [Member] - Fair Value, Measurements, Recurring [Member] - Collateralized debt obligations [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	$ 17,192	$ 13,260
Total losses realized/unrealized: Included in other comprehensive income loss	127	389
Ending balance	$ 17,319	$ 13,649