Loans and Allowance for Loan Losses (Troubled Debt Restructurings) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 Contract		Mar. 31, 2013 Contract
Financing Receivable, Modifications [Line Items]
Number of Contracts	52		189
Recorded Investment	$ 22,635	[1]	$ 62,181	[2]
Net charge-offs			53
Home Equity Lines [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	2		1
Recorded Investment	287		80
Consumer Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1		46
Recorded Investment	101		7,523
Credit Cards [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0		0
Recorded Investment	0		0
Other Retail Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	4		24
Recorded Investment	117		1,038
Investment Properties [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	3		14
Recorded Investment	7,463		17,891
1-4 Family Properties [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	4		37
Recorded Investment	1,219		11,572
Land Acquisition [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1		10
Recorded Investment	534		4,382
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	8		61
Recorded Investment	9,216		33,845
Commercial, Financial and Agricultural [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	7		27
Recorded Investment	3,996		10,397
Owner-Occupied [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	7		17
Recorded Investment	5,306		7,737
Small Business [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	23		13
Recorded Investment	3,612		1,561
Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	37		57
Recorded Investment	12,914		19,695
Retail [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	7		71
Recorded Investment	505		8,641
Principal Forgiveness [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	0		681
Principal Forgiveness [Member] | Home Equity Lines [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	0		0
Principal Forgiveness [Member] | Consumer Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	0		0
Principal Forgiveness [Member] | Credit Cards [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	0		0
Principal Forgiveness [Member] | Other Retail Loans [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	0		0
Principal Forgiveness [Member] | Investment Properties [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	0		0
Principal Forgiveness [Member] | 1-4 Family Properties [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	0		424
Principal Forgiveness [Member] | Land Acquisition [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	0		74
Principal Forgiveness [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	0		498
Principal Forgiveness [Member] | Commercial, Financial and Agricultural [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	0		183
Principal Forgiveness [Member] | Owner-Occupied [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	0		0
Principal Forgiveness [Member] | Small Business [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	0		0
Principal Forgiveness [Member] | Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	0		183
Principal Forgiveness [Member] | Retail [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	0		0
Below Market Interest Rate [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	12,193		46,659
Below Market Interest Rate [Member] | Home Equity Lines [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	241		0
Below Market Interest Rate [Member] | Consumer Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	101		4,920
Below Market Interest Rate [Member] | Credit Cards [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	0		0
Below Market Interest Rate [Member] | Other Retail Loans [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	0		372
Below Market Interest Rate [Member] | Investment Properties [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	7,143		15,777
Below Market Interest Rate [Member] | 1-4 Family Properties [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	133		6,964
Below Market Interest Rate [Member] | Land Acquisition [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	0		3,979
Below Market Interest Rate [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	7,276		26,720
Below Market Interest Rate [Member] | Commercial, Financial and Agricultural [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	1,791		8,477
Below Market Interest Rate [Member] | Owner-Occupied [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	2,488		5,283
Below Market Interest Rate [Member] | Small Business [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	296		887
Below Market Interest Rate [Member] | Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	4,575		14,647
Below Market Interest Rate [Member] | Retail [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	342		5,292
Term Extensions and or Other Concessions [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	10,442		14,841
Term Extensions and or Other Concessions [Member] | Home Equity Lines [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	46		80
Term Extensions and or Other Concessions [Member] | Consumer Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	0		2,603
Term Extensions and or Other Concessions [Member] | Credit Cards [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	0		0
Term Extensions and or Other Concessions [Member] | Other Retail Loans [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	117		666
Term Extensions and or Other Concessions [Member] | Investment Properties [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	320		2,114
Term Extensions and or Other Concessions [Member] | 1-4 Family Properties [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	1,086		4,184
Term Extensions and or Other Concessions [Member] | Land Acquisition [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	534		329
Term Extensions and or Other Concessions [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	1,940		6,627
Term Extensions and or Other Concessions [Member] | Commercial, Financial and Agricultural [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	2,205		1,737
Term Extensions and or Other Concessions [Member] | Owner-Occupied [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	2,818		2,454
Term Extensions and or Other Concessions [Member] | Small Business [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	3,316		674
Term Extensions and or Other Concessions [Member] | Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	8,339		4,865
Term Extensions and or Other Concessions [Member] | Retail [Member]
Financing Receivable, Modifications [Line Items]
Recorded Investment	$ 163		$ 3,349

[1] No net charge-offs were recorded during the three months ended March 31, 2014 upon restructuring of these loans.

[2] Net charge-offs of $53 thousand were recorded during the three months ended March 31, 2013 upon restructuring of these loans.