Comprehensive Income (Components Of OCI And Related Tax Effects) (Details) - USD ($) $ in Thousands		3 Months Ended				6 Months Ended
		Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Change in net unrealized holding gains or losses on available-for-sale securities:
Change arising during the period		$ (23,661)		$ 3,747		$ (65,217)	$ (3,514)
Reclassification adjustment for gains included in net income	[1]						(606)
Change in net unrealized holding losses on available-for-sale securities		(23,661)		3,747		(65,217)	(4,120)
Tax effect		(7,290)		1,153		(20,090)	(1,158)
Total		(16,371)		2,594		(45,127)	(2,962)
Change in unrealized loss on derivative instruments:
Amount of gain (loss) during the period		76		(33)		1,324	267
Reclassification adjustment for net interest expense included in net income		127		919		426	2,233
Change in unrealized loss on derivative instruments		203		886		1,750	2,500
Tax effect		63		273		538	726
Total		140		613		1,212	1,774
Other comprehensive income (loss)		$ (16,231)	$ (27,684)	$ 3,207	$ (4,395)	$ (43,915)	$ (1,188)

[1] Represents net realized gains arising from the sale of AFS securities. These net gains are included in the consolidated statements of income in the line item “Net gains on sales of securities.”