Intangible Assets (Summary Of Intangible Assets, Net Of Accumulated Amortization Included In The Consolidated Statements) (Details) - USD ($)		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill, Beginning balance		$ 145,932,000	$ 141,943,000
Goodwill, Amortization expense		0	0
Goodwill, Ending balance		145,932,000	141,943,000
Other Intangible Assets, Beginning Balance	[1]	29,518,000	21,988,000
Other Intangible Assets, Amortization expense	[1]	(3,894,000)	(2,944,000)
Other Intangible Assets, Ending Balance	[1]	$ 25,624,000	$ 19,044,000

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