Loans And Allowance For Loan Losses (Troubled Debt Restructurings That Subsequently Defaulted) (Details) (Troubled Debt Restructurings That Subsequently Defaulted [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012 Contract		Dec. 31, 2011 Contract
Financing Receivable, Modifications [Line Items]
Number of Contracts	80	[1]	111	[1]
Recorded Investment	$ 68,912	[1]	$ 117,691	[1]
Home Equity Lines [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0		3
Recorded Investment	0		1,742
Consumer Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	11		12
Recorded Investment	3,224		2,492
Credit Card Receivable [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0		0
Recorded Investment	0		0
Small Business [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	4	[1]	0	[1]
Recorded Investment	444	[1]	0	[1]
Other Retail Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	2		5
Recorded Investment	53		258
Investment Properties [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	9		11
Recorded Investment	8,033		16,712
1-4 Family Properties [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	18		19
Recorded Investment	11,062		20,667
Land Acquisition [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	17		31
Recorded Investment	31,782		37,070
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	44	[1]	61	[1]
Recorded Investment	50,877	[1]	74,449	[1]
Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	19		30
Recorded Investment	14,314		38,750
Retail [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	17	[1]	20	[1]
Recorded Investment	$ 3,721	[1]	$ 4,492	[1]

[1] Defaulted is defined as the earlier of the troubled debt restructuring being placed on non-accrual status or obtaining 90 days past due with respect to principal and/or interest payments.