Fair Value Accounting (Fair Value Inputs, Assets, Quantitative Information) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Equity Securities [Member] | Individual Analysis of Each Investment [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value disclosure	$ 628
Trust Preferred Securities [Member] | Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value disclosure	1,722
Private Equity Investments [Member] | Individual Analysis of Each Investment [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value disclosure	27,745
Visa Derivative [Member] | Probability Model [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value disclosure	2,706
Collateral Dependent Impaired Loans [Member] | Third Party Appraised value of Collateral Less Estimated Selling Costs [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value disclosure	170,693
Other Loans Held for Sale [Member] | Third Party Appraised value of Collateral Less Estimated Selling Costs [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value disclosure	9,670
Other Real Estate [Member] | Third Party Appraised value of Collateral Less Estimated Selling Costs [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value disclosure	50,070
Other Assets Held for Sale [Member] | Third Party Appraised value of Collateral Less Estimated Selling Costs or BOV [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value disclosure	4,945
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] | Individual Analysis of Each Investment [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value disclosure		891
Fair Value, Measurements, Recurring [Member] | Trust Preferred Securities [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount for lack of marketability	0.00%	0.00%
Credit spread embedded in discount rate	4.00%	4.25%
Fair Value, Measurements, Recurring [Member] | Trust Preferred Securities [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount for lack of marketability	10.00%	10.00%
Credit spread embedded in discount rate	4.80%	6.50%
Fair Value, Measurements, Recurring [Member] | Trust Preferred Securities [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount for lack of marketability	0.00%	0.00%
Credit spread embedded in discount rate	4.41%	5.71%
Fair Value, Measurements, Recurring [Member] | Trust Preferred Securities [Member] | Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value disclosure		2,287
Fair Value, Measurements, Recurring [Member] | Collateral Dependent Impaired Loans [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount to appraised value	0.00%	0.00%
Estimated selling costs	0.00%	0.00%
Fair Value, Measurements, Recurring [Member] | Collateral Dependent Impaired Loans [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount to appraised value	65.00%	12.00%
Estimated selling costs	10.00%	10.00%
Fair Value, Measurements, Recurring [Member] | Collateral Dependent Impaired Loans [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount to appraised value	25.00%	4.00%
Estimated selling costs	7.00%	7.00%
Fair Value, Measurements, Recurring [Member] | Collateral Dependent Impaired Loans [Member] | Third Party Appraised value of Collateral Less Estimated Selling Costs [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value disclosure		80,299
Fair Value, Measurements, Recurring [Member] | Private Equity Investments [Member] | Individual Analysis of Each Investee Company [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value disclosure		30,708
Fair Value, Measurements, Recurring [Member] | Visa Derivative [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability-weighted potential outcomes of the Covered Litigation and related fees payable	400	400
Fair Value, Measurements, Recurring [Member] | Visa Derivative [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability-weighted potential outcomes of the Covered Litigation and related fees payable	2,700	3,000
Fair Value, Measurements, Recurring [Member] | Visa Derivative [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Probability-weighted potential outcomes of the Covered Litigation and related fees payable	2,700	3,000
Fair Value, Measurements, Recurring [Member] | Visa Derivative [Member] | Probability Model [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value disclosure		2,956
Fair Value, Measurements, Recurring [Member] | Other Loans Held for Sale [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount to appraised value	18.00%	0.00%
Estimated selling costs	0.00%	0.00%
Fair Value, Measurements, Recurring [Member] | Other Loans Held for Sale [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount to appraised value	93.00%	0.12%
Estimated selling costs	10.00%	10.00%
Fair Value, Measurements, Recurring [Member] | Other Loans Held for Sale [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount to appraised value	70.00%	0.04%
Estimated selling costs	7.00%	7.00%
Fair Value, Measurements, Recurring [Member] | Other Loans Held for Sale [Member] | Third Party Appraised value of Collateral Less Estimated Selling Costs [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value disclosure		7,420
Fair Value, Measurements, Recurring [Member] | Other Real Estate [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount to appraised value	0.00%	0.00%
Estimated selling costs	0.00%	0.00%
Fair Value, Measurements, Recurring [Member] | Other Real Estate [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount to appraised value	85.00%	7.00%
Estimated selling costs	10.00%	10.00%
Fair Value, Measurements, Recurring [Member] | Other Real Estate [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount to appraised value	25.00%	2.00%
Estimated selling costs	7.00%	7.00%
Fair Value, Measurements, Recurring [Member] | Other Real Estate [Member] | Third Party Appraised value of Collateral Less Estimated Selling Costs [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value disclosure		79,293
Fair Value, Measurements, Recurring [Member] | Other Assets Held for Sale [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount to appraised value	5.00%	13.00%
Estimated selling costs	0.00%	0.00%
Fair Value, Measurements, Recurring [Member] | Other Assets Held for Sale [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount to appraised value	36.00%	51.00%
Estimated selling costs	10.00%	10.00%
Fair Value, Measurements, Recurring [Member] | Other Assets Held for Sale [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount to appraised value	20.00%	29.00%
Estimated selling costs	7.00%	7.00%
Fair Value, Measurements, Recurring [Member] | Other Assets Held for Sale [Member] | Third Party Appraised value of Collateral Less Estimated Selling Costs or BOV [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value disclosure		$ 5,804