Intangible Assets (Summary Of Intangible Assets, Net Of Accumulated Amortization Included In The Consolidated Statements) (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2016		Sep. 30, 2015
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill, Beginning balance		$ 191,307	[1]	$ 145,932
Goodwill, Amortization expense		0		0
Goodwill, Additions		64		0
Goodwill, Ending balance		191,371		145,932
Other Intangible Assets, Beginning Balance	[2]	26,215		29,518
Other Intangible Assets, Amortization expense	[2]	(3,898)		(3,894)
Other Intangible Assets, Ending Balance	[2]	$ 22,317		$ 25,624

[1] The increase in goodwill was related to the TAF acquisition in fourth quarter 2015.

[2] Represents customer lists, acquired contracts, core deposit intangibles, and covenants not to compete.