Fair Value Measurements (Fair Value Mortgage Loans Held For Sale, Interest Rate Lock Commitments And Commitments to Sell Changes in Fair Value Disclosures) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on mortgage loans held for sale	$ (691)	$ (48)	$ 598
Amount of Gain (Loss) Recognized in Income on Derivative	0	0	0
Total change in fair value	76	(17)	(44)
Interest rate lock commitments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	(175)	28	800
Commitments to sell mortgage loans [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	$ 942	$ 3	$ (1,442)