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	3 Months Ended																																																								12 Months Ended
	Mar. 31, 2014 Contract		Mar. 31, 2013 Contract		Mar. 31, 2014 Home Equity Lines [Member] Contract		Mar. 31, 2013 Home Equity Lines [Member] Contract		Mar. 31, 2014 Consumer Mortgages [Member] Contract		Mar. 31, 2013 Consumer Mortgages [Member] Contract		Mar. 31, 2014 Credit Cards [Member] Contract		Mar. 31, 2013 Credit Cards [Member] Contract		Mar. 31, 2014 Other Retail Loans [Member] Contract		Mar. 31, 2013 Other Retail Loans [Member] Contract		Mar. 31, 2014 Investment Properties [Member] Contract		Mar. 31, 2013 Investment Properties [Member] Contract		Mar. 31, 2014 1-4 Family Properties [Member] Contract		Mar. 31, 2013 1-4 Family Properties [Member] Contract		Mar. 31, 2014 Land Acquisition [Member] Contract		Mar. 31, 2013 Land Acquisition [Member] Contract		Mar. 31, 2014 Commercial Real Estate [Member] Contract		Mar. 31, 2013 Commercial Real Estate [Member] Contract		Mar. 31, 2014 Commercial, Financial and Agricultural [Member] Contract		Mar. 31, 2013 Commercial, Financial and Agricultural [Member] Contract		Mar. 31, 2014 Owner-Occupied [Member] Contract		Mar. 31, 2013 Owner-Occupied [Member] Contract		Mar. 31, 2014 Small Business [Member] Contract		Mar. 31, 2013 Small Business [Member] Contract		Mar. 31, 2014 Commercial and Industrial [Member] Contract		Mar. 31, 2013 Commercial and Industrial [Member] Contract		Mar. 31, 2014 Retail [Member] Contract		Mar. 31, 2013 Retail [Member] Contract		Dec. 31, 2013 Scenario, Previously Reported [Member] Contract
Financing Receivable, Modifications [Line Items]
Number of Contracts	2	[1]	17	[1],[2]	0	[1]	0	[1],[2]	0	[1]	10	[1],[2]	0	[1]	0	[1],[2]	0	[1]	1	[1],[2]	1	[1]	2	[1],[2]	0	[1]	2	[1],[2]	0	[1]	0	[1],[2]	1	[1]	4	[1],[2]	1	[1]	1	[1],[2]	0	[1]	1	[1],[2]	0	[1]	0	[1],[2]	1	[1]	2	[1],[2]	0	[1]	11	[1],[2]	29
Recorded Investment	$ 708	[1]	$ 15,344	[1],[2]	$ 0	[1]	$ 0	[1],[2]	$ 0	[1]	$ 558	[1],[2]	$ 0	[1]	$ 0	[1],[2]	$ 0	[1]	$ 195	[1],[2]	$ 186	[1]	$ 4,519	[1],[2]	$ 0	[1]	$ 8,945	[1],[2]	$ 0	[1]	$ 0	[1],[2]	$ 186	[1]	$ 13,464	[1],[2]	$ 522	[1]	$ 271	[1],[2]	$ 0	[1]	$ 856	[1],[2]	$ 0	[1]	$ 0	[1],[2]	$ 522	[1]	$ 1,127	[1],[2]	$ 0	[1]	$ 753	[1],[2]	$ 19,400

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

[2] Amounts related to loans modified or renewed into TDRs within 12 months of the default date that subsequently defaulted during the three months ended March 31, 2013 were previously disclosed as 29 contracts with a recorded investment totaling $19.4 million. These amounts were revised in the table above due to a re-evaluation of the defaulted status of certain loans during this period.