Intangible Assets (Summary Of Intangible Assets, Net Of Accumulated Amortization Included In The Consolidated Statements) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Intangible Assets Net Of Accumulated Amortization [Abstract]
Goodwill, Beginning balance	$ 134,242		$ 133,659
Goodwill, Amortization expense	0		0
Goodwill, Additions	0		583
Goodwill, Ending balance	134,242		134,242
Other Intangible Assets, Beginning balance	22,700	[1]	26,243	[1]
Other Intangible Assets, Amortization expense	(928)	[1]	(973)	[1]
Other Intangible Assets, Additions			368	[1]
Other Intangible Assets, Ending balance	$ 21,772	[1]	$ 25,638	[1]

[1] Represents customer lists, acquired contracts, premium on purchased deposits, and covenants not to compete.