Intangible Assets (Summary Of Intangible Assets, Net Of Accumulated Amortization Included In The Consolidated Statements) (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2016		Jun. 30, 2015
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill, Beginning balance		$ 191,307	[1]	$ 145,932
Goodwill, Amortization expense		0		0
Goodwill, Ending balance		191,307		145,932
Other Intangible Assets, Beginning Balance	[2]	26,215	[1]	29,518
Other Intangible Assets, Amortization expense	[2]	(2,599)		(2,596)
Other Intangible Assets, Ending Balance	[2]	$ 23,616		$ 26,922

[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.