Investment Securities (Proceeds From Sales Of Securities And Components Of Investment Securities Gains And Losses) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Investment [Line Items]
Proceeds from sales of available for sale securities	$ 7,076	$ 5,231	$ 11,202
Proceeds from sales of non-marketable securities	9,223	11,644	8,631
Total proceeds	16,299	16,875	19,833
Other-than-temporary impairment recognized on debt securities	(1,284)	(1,490)	(2,537)
Investment securities gains (losses), net	(4,425)	4,828	10,812
Available For Sale [Member]
Investment [Line Items]
Gains realized on sales	126	358	177
Gain realized on donation	1,375	0	0
Other-than-temporary impairment recognized on debt securities	(1,284)	(1,490)	(2,537)
Non-Marketable [Member]
Investment [Line Items]
Gains realized on sales	1,808	1,655	2,388
Losses realized on sales	(2,979)	(200)	0
Fair value adjustments, net	$ (3,471)	$ 4,505	$ 10,784