Fair Value Measurements (Fair Value Mortgage Loans Held For Sale, Commitments to Originate And Commitments to Sell Changes in Fair Value Disclosures) (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
Fair Value Disclosures [Abstract]
Mortgage loans held for sale	$ 338	$ 0	$ 106	$ 0
Commitments to originate	1,248	(53)	1,199	33
Commitments to sell	(1,586)	42	(1,305)	(506)
Total change in fair value	$ 0	$ (11)	$ 0	$ (473)