Goodwill And Other Intangible Assets (Schedule Of Changes In Carrying Amount Of Goodwill And Net Other Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Goodwill [Roll Forward]
Amortization	$ (669)	$ (751)	$ (1,400)	$ (1,600)
Goodwill [Member]
Goodwill [Roll Forward]
Balance, beginning			125,585
Amortization			0
Impairment reversal			0
Balance, ending	125,585		125,585
Core Deposit Premium [Member]
Goodwill [Roll Forward]
Balance, beginning			6,970
Amortization			(1,163)
Impairment reversal			0
Balance, ending	5,807		5,807
Mortgage Servicing Rights [Member]
Goodwill [Roll Forward]
Balance, beginning			744
Amortization			(190)
Impairment reversal			20
Balance, ending	$ 574		$ 574