Fair Value (Details 1) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Impaired Loans - Covered
Impaired loans - covered	$ 23,238	$ 12,234
Valuation technique	Appraised value	Appraised value
Significant unobservable inputs	Discounts to reflect current market conditions, ultimate collectability, and estimated costs to sell	Discounts to reflect current market conditions, ultimate collectability, and estimated costs to sell
General range of significant input values, minimum	0.00%	0.00%
General range of significant input values, maximum	10.00%	49.00%
Impaired Loans - Non - Covered
Impaired loans - non-covered	14,491	21,021
Valuation technique	Appraised value	Appraised value
Significant unobservable inputs	Discounts to reflect current market conditions, ultimate collectability, and estimated costs to sell	Discounts to reflect current market conditions, ultimate collectability, and estimated costs to sell
General range of significant input values, minimum	0.00%	0.00%
General range of significant input values, maximum	20.00%	21.00%
Foreclosed Real Estate - Covered
Other real estate - covered	32,005	47,290
Valuation technique	Appraised value	Appraised value
Significant unobservable inputs	Discounts to reflect current market conditions and estimated costs to sell	Discounts to reflect current market conditions and estimated costs to sell
General range of significant input values, minimum	0.00%	0.00%
General range of significant input values, maximum	10.00%	29.00%
Foreclosed Real Estate - Non-Covered
Other real estate - non-covered	$ 15,425	$ 26,285
Valuation technique	Appraised value	Appraised value
Significant unobservable inputs	Discounts to reflect current market conditions, abbreviated holding period, and estimated costs to sell	Discounts to reflect current market conditions, abbreviated holding period, and estimated costs to sell
General range of significant input values, minimum	0.00%	0.00%
General range of significant input values, maximum	40.00%	40.00%