Quantitative Information about Level 3 Fair Value Measurements (Details) (Non-Recurring Measurements, USD $) In Thousands, unless otherwise specified								9 Months Ended																	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 Level 3	Dec. 31, 2012 Level 3	Sep. 30, 2013 Other real estate owned Level 3	Sep. 30, 2013 Other real estate owned Sales Comparison Approach Level 3	Sep. 30, 2013 Other real estate owned Combined Approach Level 3	Sep. 30, 2013 Other real estate owned Minimum Range Sales Comparison Approach Level 3		Sep. 30, 2013 Other real estate owned Minimum Range Combined Approach Level 3		Sep. 30, 2013 Other real estate owned Maximum Range Sales Comparison Approach Level 3		Sep. 30, 2013 Other real estate owned Maximum Range Combined Approach Level 3		Sep. 30, 2013 Other real estate owned Weighted Average Range Sales Comparison Approach Level 3		Sep. 30, 2013 Other real estate owned Weighted Average Range Combined Approach Level 3		Sep. 30, 2013 Collateral-dependent Impaired Loans, Net of ALLL Level 3	Sep. 30, 2013 Collateral-dependent Impaired Loans, Net of ALLL Cost Approach Level 3	Sep. 30, 2013 Collateral-dependent Impaired Loans, Net of ALLL Income Approach Level 3	Sep. 30, 2013 Collateral-dependent Impaired Loans, Net of ALLL Sales Comparison Approach Level 3	Sep. 30, 2013 Collateral-dependent Impaired Loans, Net of ALLL Combined Approach Level 3	Sep. 30, 2013 Collateral-dependent Impaired Loans, Net of ALLL Minimum Range Cost Approach Level 3		Sep. 30, 2013 Collateral-dependent Impaired Loans, Net of ALLL Minimum Range Income Approach Level 3		Sep. 30, 2013 Collateral-dependent Impaired Loans, Net of ALLL Minimum Range Sales Comparison Approach Level 3		Sep. 30, 2013 Collateral-dependent Impaired Loans, Net of ALLL Minimum Range Combined Approach Level 3		Sep. 30, 2013 Collateral-dependent Impaired Loans, Net of ALLL Maximum Range Cost Approach Level 3		Sep. 30, 2013 Collateral-dependent Impaired Loans, Net of ALLL Maximum Range Income Approach Level 3		Sep. 30, 2013 Collateral-dependent Impaired Loans, Net of ALLL Maximum Range Sales Comparison Approach Level 3		Sep. 30, 2013 Collateral-dependent Impaired Loans, Net of ALLL Maximum Range Combined Approach Level 3		Sep. 30, 2013 Collateral-dependent Impaired Loans, Net of ALLL Weighted Average Range Cost Approach Level 3		Sep. 30, 2013 Collateral-dependent Impaired Loans, Net of ALLL Weighted Average Range Income Approach Level 3		Sep. 30, 2013 Collateral-dependent Impaired Loans, Net of ALLL Weighted Average Range Sales Comparison Approach Level 3		Sep. 30, 2013 Collateral-dependent Impaired Loans, Net of ALLL Weighted Average Range Combined Approach Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value	$ 26,712	$ 36,949	$ 26,712	$ 36,949	$ 7,646	$ 6,828	$ 818													$ 19,066	$ 442	$ 2,553	$ 13,700	$ 2,371
Unobservable Inputs
Selling Costs								1.00%	[1]	5.00%	[1]	11.00%	[1]	5.00%	[1]	7.00%	[1]	5.00%	[1]						10.00%	[1]	8.00%	[1]	0.00%	[1]	8.00%	[1]	50.00%	[1]	8.00%	[1]	10.00%	[1]	8.00%	[1]	19.20%	[1]	8.00%	[1]	8.00%	[1]	8.00%	[1]
Discount Rate																											8.30%		0.00%						8.30%		0.00%						8.30%		0.00%
Adjustment to Comparables								0.00%	[1]	25.00%	[1]	10.00%	[1]	25.00%	[1]	0.00%	[1]	25.00%	[1]										0.00%	[1]	10.00%	[1]					1.00%	[1]	36.00%	[1]					0.00%	[1]	22.50%	[1]

[1] The range for selling costs and adjustments to comparables indicate reductions to the fair value.