Loans (Schedule Of Loans Individually Evaluated For Impairment) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended		12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Financing Receivable, Impaired [Line Items]
Without a related allowance, Recorded Investment	$ 60,709	$ 56,687	$ 47,908
Without a related allowance, Unpaid Principal Balance	60,742	56,714	47,944
Without a related allowance, Average Impaired Balance	41,879	45,055	36,974
Without a related allowance, Interest Income Recognized while impaired	1,633	1,351	799
With a related allowance, Recorded Investment	40,576	22,239	31,095
With a related allowance, Unpaid Principal Balance	40,585	22,245	31,112
With a related allowance, Related Allowance	7,309	4,496	4,745
With a related allowance, Average Impaired Balance	38,105	14,005	18,514
With a related allowance, Interest Income Recognized while impaired	645	290	304
Recorded Investment	101,285	78,926	79,003
Unpaid Principal Balance	101,327	78,959	79,056
Related Allowance	7,309	4,496	4,745
Average Impaired Balance	79,984	59,060	55,488
Interest Income Recognized while impaired	2,278	1,641	1,103
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Without a related allowance, Recorded Investment	12,059	2,739	2,074
Without a related allowance, Unpaid Principal Balance	12,075	2,741	2,076
Without a related allowance, Average Impaired Balance	3,148	1,060	874
Without a related allowance, Interest Income Recognized while impaired	54	12	10
With a related allowance, Recorded Investment	336	302	893
With a related allowance, Unpaid Principal Balance	336	302	893
With a related allowance, Related Allowance	86	103	247
With a related allowance, Average Impaired Balance	299	73	661
With a related allowance, Interest Income Recognized while impaired	6		1
Recorded Investment	71,529	57,298	55,595
Unpaid Principal Balance	71,552	57,320	55,634
Related Allowance	3,564	2,994	4,098
Average Impaired Balance	54,710	38,385	37,740
Interest Income Recognized while impaired	1,740	782	996
Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Without a related allowance, Recorded Investment	11,370	9,932	9,013
Without a related allowance, Unpaid Principal Balance	11,373	9,948	9,034
Without a related allowance, Average Impaired Balance	8,058	7,298	8,132
Without a related allowance, Interest Income Recognized while impaired	346	160	253
With a related allowance, Recorded Investment	4,573	3,255	3,244
With a related allowance, Unpaid Principal Balance	4,573	3,256	3,244
With a related allowance, Related Allowance	241	465	465
With a related allowance, Average Impaired Balance	4,409	3,703	3,588
With a related allowance, Interest Income Recognized while impaired	209	107	143
Non-Owner Occupied [Member]
Financing Receivable, Impaired [Line Items]
Without a related allowance, Recorded Investment	8,537	8,958	5,599
Without a related allowance, Unpaid Principal Balance	8,540	8,961	5,600
Without a related allowance, Average Impaired Balance	6,349	3,489	2,891
Without a related allowance, Interest Income Recognized while impaired	304	104	116
With a related allowance, Recorded Investment	3,516	4,227	4,190
With a related allowance, Unpaid Principal Balance	3,517	4,227	4,190
With a related allowance, Related Allowance	475	493	456
With a related allowance, Average Impaired Balance	3,361	3,073	3,357
With a related allowance, Interest Income Recognized while impaired	115	65	87
Land And Land Development [Member]
Financing Receivable, Impaired [Line Items]
Without a related allowance, Recorded Investment	15,624	18,266	12,128
Without a related allowance, Unpaid Principal Balance	15,624	18,266	12,128
Without a related allowance, Average Impaired Balance	14,060	15,915	9,509
Without a related allowance, Interest Income Recognized while impaired	524	257	346
With a related allowance, Recorded Investment	15,514	9,619	17,719
With a related allowance, Unpaid Principal Balance	15,514	9,619	17,734
With a related allowance, Related Allowance	2,762	1,933	2,901
With a related allowance, Average Impaired Balance	15,026	3,774	8,726
With a related allowance, Interest Income Recognized while impaired	182	77	40
Construction [Member]
Financing Receivable, Impaired [Line Items]
Without a related allowance, Recorded Investment
Without a related allowance, Unpaid Principal Balance
Without a related allowance, Average Impaired Balance
Without a related allowance, Interest Income Recognized while impaired
With a related allowance, Recorded Investment			735
With a related allowance, Unpaid Principal Balance			735
With a related allowance, Related Allowance			29
With a related allowance, Average Impaired Balance			2
With a related allowance, Interest Income Recognized while impaired
Related Allowance
Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	29,713	21,628	23,400
Unpaid Principal Balance	29,733	21,639	23,414
Related Allowance	3,741	1,502	646
Average Impaired Balance	25,243	20,675	17,748
Interest Income Recognized while impaired	537	859	107
Non-Jumbo [Member]
Financing Receivable, Impaired [Line Items]
Without a related allowance, Recorded Investment	3,987	3,976	3,697
Without a related allowance, Unpaid Principal Balance	3,996	3,983	3,708
Without a related allowance, Average Impaired Balance	3,545	4,502	2,843
Without a related allowance, Interest Income Recognized while impaired	135	123	68
With a related allowance, Recorded Investment	2,422	2,351	1,150
With a related allowance, Unpaid Principal Balance	2,424	2,353	1,152
With a related allowance, Related Allowance	502	823	209
With a related allowance, Average Impaired Balance	1,787	1,621	706
With a related allowance, Interest Income Recognized while impaired	101	39	31
Jumbo [Member]
Financing Receivable, Impaired [Line Items]
Without a related allowance, Recorded Investment	8,902	12,621	15,203
Without a related allowance, Unpaid Principal Balance	8,905	12,621	15,204
Without a related allowance, Average Impaired Balance	6,497	12,618	12,626
Without a related allowance, Interest Income Recognized while impaired	257	687
With a related allowance, Recorded Investment	14,183	2,270	2,943
With a related allowance, Unpaid Principal Balance	14,189	2,273	2,943
With a related allowance, Related Allowance	3,211	513	275
With a related allowance, Average Impaired Balance	13,193	1,666	1,349
With a related allowance, Interest Income Recognized while impaired	32
Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Without a related allowance, Recorded Investment	191	195	194
Without a related allowance, Unpaid Principal Balance	191	194	194
Without a related allowance, Average Impaired Balance	192	173	99
Without a related allowance, Interest Income Recognized while impaired	12	8	6
With a related allowance, Recorded Investment	28	215	213
With a related allowance, Unpaid Principal Balance	28	215	213
With a related allowance, Related Allowance	28	166	162
With a related allowance, Average Impaired Balance	29	95	125
With a related allowance, Interest Income Recognized while impaired		2	2
Related Allowance
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Without a related allowance, Recorded Investment	39
Without a related allowance, Unpaid Principal Balance	38
Without a related allowance, Average Impaired Balance	30
Without a related allowance, Interest Income Recognized while impaired	1
With a related allowance, Recorded Investment	4		8
With a related allowance, Unpaid Principal Balance	4		8
With a related allowance, Related Allowance	4		1
With a related allowance, Average Impaired Balance	1
With a related allowance, Interest Income Recognized while impaired
Recorded Investment	43		8
Unpaid Principal Balance	42		8
Related Allowance	4		1
Average Impaired Balance	31
Interest Income Recognized while impaired	$ 1