Loans (Schedule Of Nonaccrual Loans Included In Net Balance Of Loans) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 46,037	$ 52,096	$ 38,892
Commercial [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	6,476	3,260	2,212
Owner-Occupied [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	2,248	2,815	3,848
Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	1,288	4,348	4,245
Land And Land Development [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	17,244	22,362	19,069
Construction [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	153	979	152
Non-Jumbo [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	3,449	3,683	4,419
Jumbo [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	14,752	13,966	3,876
Home Equity [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	349	538	941
Consumer [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	78	145	128
Other [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status			$ 2