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Fair Value Of Assets And Liabilities (Schedule Of Unobservable Inputs Utilized In Determining The Fair Value Of Level 3 Recurring And Non-Recurring Measurements) (Details) (USD $)
 3 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Mar. 31, 2013
Dec. 31, 2012
Mar. 31, 2014
Mortgage Banking [Member]
Mar. 31, 2013
Mortgage Banking [Member]
Mar. 31, 2014
First Mortgage [Member]
Mar. 31, 2013
First Mortgage [Member]
Mar. 31, 2014
Fair Value Measurements Nonrecurring [Member]
Mar. 31, 2013
Fair Value Measurements Nonrecurring [Member]
Mar. 31, 2014
Derivatives Other [Member]
Mar. 31, 2013
Derivatives Other [Member]
Mar. 31, 2014
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Fair Value Inputs Level3 [Member]
Mortgage Banking [Member]
Mar. 31, 2013
Fair Value Inputs Level3 [Member]
Mortgage Banking [Member]
Mar. 31, 2014
Fair Value Inputs Level3 [Member]
First Mortgage [Member]
Mar. 31, 2013
Fair Value Inputs Level3 [Member]
First Mortgage [Member]
Mar. 31, 2014
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Mar. 31, 2013
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Mar. 31, 2014
Fair Value Inputs Level3 [Member]
Fair Value Measurements Nonrecurring [Member]
Mar. 31, 2013
Fair Value Inputs Level3 [Member]
Fair Value Measurements Nonrecurring [Member]
Mar. 31, 2014
Fair Value Inputs Level3 [Member]
Derivatives Other [Member]
Mar. 31, 2013
Fair Value Inputs Level3 [Member]
Derivatives Other [Member]
Mar. 31, 2014
Venture Capital Funds [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Venture Capital Funds [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Other Assets Tax Credit Investments [Member]
Fair Value Inputs Level3 [Member]
Fair Value Measurements Nonrecurring [Member]
Mar. 31, 2013
Other Assets Tax Credit Investments [Member]
Fair Value Inputs Level3 [Member]
Fair Value Measurements Nonrecurring [Member]
Mar. 31, 2014
Discounted Cash Flow [Member]
Trading Securities [Member]
Fair Value Inputs Level3 [Member]
Mortgage Banking [Member]
Mar. 31, 2013
Discounted Cash Flow [Member]
Trading Securities [Member]
Fair Value Inputs Level3 [Member]
Mortgage Banking [Member]
Mar. 31, 2014
Discounted Cash Flow [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Mar. 31, 2013
Discounted Cash Flow [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Mar. 31, 2014
Discounted Cash Flow [Member]
Venture Capital Funds [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Discounted Cash Flow [Member]
Venture Capital Funds [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Discounted Cash Flow [Member]
Mortgage Servicing Rights [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Discounted Cash Flow [Member]
Mortgage Servicing Rights [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Discounted Cash Flow [Member]
Short Term Debt [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Discounted Cash Flow [Member]
Derivative Financial Instruments Liabilities [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Discounted Cash Flow [Member]
Derivative Financial Instruments Liabilities [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Discounted Cash Flow [Member]
Other Assets Tax Credit Investments [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Discounted Cash Flow [Member]
Other Assets Tax Credit Investments [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Discounted Cash Flow [Member]
Fifteen Point Two Constant Prepayment Rate [Member]
Mortgage Servicing Rights [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Discounted Cash Flow [Member]
Nine Point Eight Percent Values Utilized [Member]
Mortgage Servicing Rights [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Discounted Cash Flow [Member]
One Hundred Forty One Dollars And Forty Cents Per Loan [Member]
Mortgage Servicing Rights [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Discounted Cash Flow [Member]
One Point Three Eight Five Percent Values Utilized [Member]
Mortgage Servicing Rights [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Discounted Cash Flow [Member]
One Point Three Eight Five Percent Values Utilized [Member]
Mortgage Servicing Rights [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Discounted Cash Flow [Member]
Thirty Two Percent Values Utilized [Member]
Trading Securities [Member]
Fair Value Inputs Level3 [Member]
Mortgage Banking [Member]
Mar. 31, 2013
Discounted Cash Flow [Member]
Forty Six Percent Values Utilized [Member]
Trading Securities [Member]
Fair Value Inputs Level3 [Member]
Mortgage Banking [Member]
Mar. 31, 2013
Discounted Cash Flow [Member]
Twenty Point Seven Constant Prepayment Rate [Member]
Mortgage Servicing Rights [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Discounted Cash Flow [Member]
Eleven Point Eight Percent Values Utilized [Member]
Mortgage Servicing Rights [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Discounted Cash Flow [Member]
One Hundred Eighteen Dollars And Ten Cents Per Loan [Member]
Mortgage Servicing Rights [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Appraisals From Comparable Properties [Member]
Loans Net Of Unearned Income [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Appraisals From Comparable Properties [Member]
Loans Net Of Unearned Income [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Appraisals From Comparable Properties [Member]
Real Estate Acquired By Foreclosure [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Appraisals From Comparable Properties [Member]
Real Estate Acquired By Foreclosure [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Appraisals From Comparable Properties [Member]
Other Assets Tax Credit Investments [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Appraisals From Comparable Properties [Member]
Other Assets Tax Credit Investments [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Other Collateral Valuations [Member]
Loans Net Of Unearned Income [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Other Collateral Valuations [Member]
Loans Net Of Unearned Income [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Industry Comparables [Member]
Venture Capital Funds [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Industry Comparables [Member]
Venture Capital Funds [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Maximum [Member]
Discounted Cash Flow [Member]
Derivative Financial Instruments Liabilities [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Maximum [Member]
Discounted Cash Flow [Member]
Derivative Financial Instruments Liabilities [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Maximum [Member]
Discounted Cash Flow [Member]
Six Percent To Ten Percent Values Utilized [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Mar. 31, 2014
Maximum [Member]
Discounted Cash Flow [Member]
Six Percent To Ten Percent Values Utilized [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
First Mortgage [Member]
Mar. 31, 2014
Maximum [Member]
Discounted Cash Flow [Member]
Two Percent To Four Percent Values Utilized [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Mar. 31, 2013
Maximum [Member]
Discounted Cash Flow [Member]
Two Percent To Four Percent Values Utilized [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Mar. 31, 2014
Maximum [Member]
Discounted Cash Flow [Member]
Fifteen Percent To Twenty Five Percent Added To Credit Spread [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Mar. 31, 2013
Maximum [Member]
Discounted Cash Flow [Member]
Fifteen Percent To Twenty Five Percent Added To Credit Spread [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Mar. 31, 2013
Maximum [Member]
Discounted Cash Flow [Member]
Fifty Percent To Sixty Percent Of Upb [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Mar. 31, 2014
Maximum [Member]
Discounted Cash Flow [Member]
Fifty Percent To Sixty Percent Of Upb [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
First Mortgage [Member]
Mar. 31, 2014
Maximum [Member]
Discounted Cash Flow [Member]
Zero Percent To Fifteen Percent Of Adjustment To Yield [Member]
Other Assets Tax Credit Investments [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Maximum [Member]
Discounted Cash Flow [Member]
Zero Percent To Fifteen Percent Of Adjustment To Yield [Member]
Other Assets Tax Credit Investments [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Maximum [Member]
Discounted Cash Flow [Member]
Twelve Months To Forty Eight Months [Member]
Derivative Financial Instruments Liabilities [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Maximum [Member]
Discounted Cash Flow [Member]
Ten Percent To Sixty Percent Values Utilized [Member]
Derivative Financial Instruments Liabilities [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Maximum [Member]
Discounted Cash Flow [Member]
Twenty Five Percent To Thirty Percent Values Utilized [Member]
Venture Capital Funds [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Maximum [Member]
Discounted Cash Flow [Member]
Twenty Five Percent To Thirty Percent Values Utilized [Member]
Venture Capital Funds [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Maximum [Member]
Discounted Cash Flow [Member]
Twenty Percent To Twenty Five Percent Values Utilized [Member]
Venture Capital Funds [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Maximum [Member]
Discounted Cash Flow [Member]
Twenty Percent To Twenty Five Percent Values Utilized [Member]
Venture Capital Funds [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Maximum [Member]
Discounted Cash Flow [Member]
Six Months To Eighteen Months [Member]
Derivative Financial Instruments Liabilities [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Maximum [Member]
Discounted Cash Flow [Member]
Three Percent To Twelve Percent Values Utilized [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Home Equity [Member]
Mar. 31, 2014
Maximum [Member]
Discounted Cash Flow [Member]
Thirty Five Percent To Hundred Percent Of Upb [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Home Equity [Member]
Mar. 31, 2014
Maximum [Member]
Discounted Cash Flow [Member]
Ten Percent To Thirty Percent Values Utilized [Member]
Derivative Financial Instruments Liabilities [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Maximum [Member]
Discounted Cash Flow [Member]
Two To Eleven Percent [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Home Equity [Member]
Mar. 31, 2014
Maximum [Member]
Discounted Cash Flow [Member]
Forty Percent To Forty Six Percent Values Utilized [Member]
Trading Securities [Member]
Fair Value Inputs Level3 [Member]
Mortgage Banking [Member]
Mar. 31, 2014
Maximum [Member]
Discounted Cash Flow [Member]
Forty Seven Percent To Forty Nine Percent Values Utilized [Member]
Trading Securities [Member]
Fair Value Inputs Level3 [Member]
Mortgage Banking [Member]
Mar. 31, 2014
Maximum [Member]
Appraisals From Comparable Properties [Member]
Zero Percent To Ten Percent Of Appraisal [Member]
Loans Net Of Unearned Income [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Maximum [Member]
Appraisals From Comparable Properties [Member]
Zero Percent To Ten Percent Of Appraisal [Member]
Loans Net Of Unearned Income [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Maximum [Member]
Appraisals From Comparable Properties [Member]
Zero Percent To Ten Percent Of Appraisal [Member]
Real Estate Acquired By Foreclosure [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Maximum [Member]
Appraisals From Comparable Properties [Member]
Zero Percent To Ten Percent Of Appraisal [Member]
Real Estate Acquired By Foreclosure [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Maximum [Member]
Appraisals From Comparable Properties [Member]
Zero Percent To Twenty Five Percent Of Appraisal [Member]
Other Assets Tax Credit Investments [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Maximum [Member]
Appraisals From Comparable Properties [Member]
Zero Percent To Twenty Five Percent Of Appraisal [Member]
Other Assets Tax Credit Investments [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Maximum [Member]
Other Collateral Valuations [Member]
Twenty Percent To Fifty Percent Of Gross Value [Member]
Loans Net Of Unearned Income [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Maximum [Member]
Other Collateral Valuations [Member]
Twenty Percent To Fifty Percent Of Gross Value [Member]
Loans Net Of Unearned Income [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Maximum [Member]
Other Collateral Valuations [Member]
Zero Percent To Twenty Five Percent Of Reported Value [Member]
Loans Net Of Unearned Income [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Maximum [Member]
Other Collateral Valuations [Member]
Zero Percent To Twenty Five Percent Of Reported Value [Member]
Loans Net Of Unearned Income [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Maximum [Member]
Industry Comparables [Member]
Forty Percent To Fifty Percent Discount [Member]
Venture Capital Funds [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Maximum [Member]
Industry Comparables [Member]
Forty Percent To Fifty Percent Discount [Member]
Venture Capital Funds [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Minimum [Member]
Discounted Cash Flow [Member]
Derivative Financial Instruments Liabilities [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Minimum [Member]
Discounted Cash Flow [Member]
Derivative Financial Instruments Liabilities [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Minimum [Member]
Discounted Cash Flow [Member]
Six Percent To Ten Percent Values Utilized [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Mar. 31, 2014
Minimum [Member]
Discounted Cash Flow [Member]
Six Percent To Ten Percent Values Utilized [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
First Mortgage [Member]
Mar. 31, 2014
Minimum [Member]
Discounted Cash Flow [Member]
Two Percent To Four Percent Values Utilized [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Mar. 31, 2013
Minimum [Member]
Discounted Cash Flow [Member]
Two Percent To Four Percent Values Utilized [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Mar. 31, 2014
Minimum [Member]
Discounted Cash Flow [Member]
Fifteen Percent To Twenty Five Percent Added To Credit Spread [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Mar. 31, 2013
Minimum [Member]
Discounted Cash Flow [Member]
Fifteen Percent To Twenty Five Percent Added To Credit Spread [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Mar. 31, 2013
Minimum [Member]
Discounted Cash Flow [Member]
Fifty Percent To Sixty Percent Of Upb [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Mar. 31, 2014
Minimum [Member]
Discounted Cash Flow [Member]
Fifty Percent To Sixty Percent Of Upb [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
First Mortgage [Member]
Mar. 31, 2014
Minimum [Member]
Discounted Cash Flow [Member]
Zero Percent To Fifteen Percent Of Adjustment To Yield [Member]
Other Assets Tax Credit Investments [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Minimum [Member]
Discounted Cash Flow [Member]
Zero Percent To Fifteen Percent Of Adjustment To Yield [Member]
Other Assets Tax Credit Investments [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Minimum [Member]
Discounted Cash Flow [Member]
Twelve Months To Forty Eight Months [Member]
Derivative Financial Instruments Liabilities [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Minimum [Member]
Discounted Cash Flow [Member]
Ten Percent To Sixty Percent Values Utilized [Member]
Derivative Financial Instruments Liabilities [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Minimum [Member]
Discounted Cash Flow [Member]
Twenty Five Percent To Thirty Percent Values Utilized [Member]
Venture Capital Funds [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Minimum [Member]
Discounted Cash Flow [Member]
Twenty Five Percent To Thirty Percent Values Utilized [Member]
Venture Capital Funds [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Minimum [Member]
Discounted Cash Flow [Member]
Twenty Percent To Twenty Five Percent Values Utilized [Member]
Venture Capital Funds [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Minimum [Member]
Discounted Cash Flow [Member]
Twenty Percent To Twenty Five Percent Values Utilized [Member]
Venture Capital Funds [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Minimum [Member]
Discounted Cash Flow [Member]
Six Months To Eighteen Months [Member]
Derivative Financial Instruments Liabilities [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Minimum [Member]
Discounted Cash Flow [Member]
Three Percent To Twelve Percent Values Utilized [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Home Equity [Member]
Mar. 31, 2014
Minimum [Member]
Discounted Cash Flow [Member]
Thirty Five Percent To Hundred Percent Of Upb [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Home Equity [Member]
Mar. 31, 2014
Minimum [Member]
Discounted Cash Flow [Member]
Ten Percent To Thirty Percent Values Utilized [Member]
Derivative Financial Instruments Liabilities [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Minimum [Member]
Discounted Cash Flow [Member]
Two To Eleven Percent [Member]
Loans Held For Sale [Member]
Fair Value Inputs Level3 [Member]
Residential Real Estate [Member]
Home Equity [Member]
Mar. 31, 2014
Minimum [Member]
Discounted Cash Flow [Member]
Forty Percent To Forty Six Percent Values Utilized [Member]
Trading Securities [Member]
Fair Value Inputs Level3 [Member]
Mortgage Banking [Member]
Mar. 31, 2014
Minimum [Member]
Discounted Cash Flow [Member]
Forty Seven Percent To Forty Nine Percent Values Utilized [Member]
Trading Securities [Member]
Fair Value Inputs Level3 [Member]
Mortgage Banking [Member]
Mar. 31, 2014
Minimum [Member]
Appraisals From Comparable Properties [Member]
Zero Percent To Ten Percent Of Appraisal [Member]
Loans Net Of Unearned Income [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Minimum [Member]
Appraisals From Comparable Properties [Member]
Zero Percent To Ten Percent Of Appraisal [Member]
Loans Net Of Unearned Income [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Minimum [Member]
Appraisals From Comparable Properties [Member]
Zero Percent To Ten Percent Of Appraisal [Member]
Real Estate Acquired By Foreclosure [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Minimum [Member]
Appraisals From Comparable Properties [Member]
Zero Percent To Ten Percent Of Appraisal [Member]
Real Estate Acquired By Foreclosure [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Minimum [Member]
Appraisals From Comparable Properties [Member]
Zero Percent To Twenty Five Percent Of Appraisal [Member]
Other Assets Tax Credit Investments [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Minimum [Member]
Appraisals From Comparable Properties [Member]
Zero Percent To Twenty Five Percent Of Appraisal [Member]
Other Assets Tax Credit Investments [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Minimum [Member]
Other Collateral Valuations [Member]
Twenty Percent To Fifty Percent Of Gross Value [Member]
Loans Net Of Unearned Income [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Minimum [Member]
Other Collateral Valuations [Member]
Twenty Percent To Fifty Percent Of Gross Value [Member]
Loans Net Of Unearned Income [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Minimum [Member]
Other Collateral Valuations [Member]
Zero Percent To Twenty Five Percent Of Reported Value [Member]
Loans Net Of Unearned Income [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Minimum [Member]
Other Collateral Valuations [Member]
Zero Percent To Twenty Five Percent Of Reported Value [Member]
Loans Net Of Unearned Income [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2014
Minimum [Member]
Industry Comparables [Member]
Forty Percent To Fifty Percent Discount [Member]
Venture Capital Funds [Member]
Fair Value Inputs Level3 [Member]
Mar. 31, 2013
Minimum [Member]
Industry Comparables [Member]
Forty Percent To Fifty Percent Discount [Member]
Venture Capital Funds [Member]
Fair Value Inputs Level3 [Member]
Fair Value Inputs Assets Quantitative Information [Line Items]                                                                                                                                                                                                                                                                              
Fair value of retained interests $ 1,194,749,000 $ 801,718,000 $ 1,397,746,000   $ 6,588,000 $ 16,454,000                 $ 6,588,000 $ 16,454,000                                                                                                                                                                                                                                              
Total MSR recognized by FHN 4,687,000 72,793,000 109,102,000 114,311,000                 4,687,000 109,102,000                                                                                                                                                                                                                                                  
Other short-term borrowings     10,984,000                     10,984,000                                                                                                                                                                                                                                                  
Other Liabilities, Fair Value Disclosure 137,863,000   199,999,000               4,945,000 2,055,000 4,945,000 2,050,000                 4,945,000 2,050,000                                                                                                                                                                                                                              
Loans, net of unearned income                                         57,035,000 [1] 125,223,000 [1]                                                                                                                                                                                                                                  
Loans held-for-sale 229,219,000   232,684,000       9,191,000 11,633,000         229,219,000 232,684,000     9,191,000 11,633,000 238,410,000 244,317,000                                                                                                                                                                                                                                      
Real estate acquired by foreclosure 66,035,000 71,562,000 54,672,000           42,970,000 [2] 32,655,000 [2]                     42,970,000 [2] 32,655,000 [2]                                                                                                                                                                                                                                  
Securities available-for-sale 3,571,179,000 [3] 3,398,457,000 3,190,219,000 [4]                   7,982,000 9,076,000                     4,300,000 4,300,000                                                                                                                                                                                                                          
Other assets 189,800,000   297,117,000           64,210,000 [5] 74,109,000 [5]     0 0             64,210,000 [5] 74,109,000 [5]         64,210,000 [5] 74,109,000 [5]                                                                                                                                                                                                                      
Valuation Techniques                                                         Discounted cash flow Discounted cash flow Discounted cash flow Discounted cash flow Discounted cash flow Discounted cash flow Discounted cash flow Discounted cash flow Discounted cash flow Discounted cash flow Discounted cash flow Discounted cash flow Discounted cash flow                     Appraisals from comparable properties Appraisals from comparable properties Appraisals from comparable properties Appraisals from comparable properties Appraisals from comparable properties Appraisals from comparable properties Other collateral valuations Other collateral valuations Industry comparables Industry comparables                                                                                                                                                    
Prepayment Speeds                                                                                   15.20%         32.00%   20.70%                             10.00% 10.00%                               12.00%       46.00%                               6.00% 6.00%                               3.00%       40.00%                          
Loss severity trends                                                                                                                                           60.00% 60.00%                     100.00%                                                 50.00% 50.00%                     35.00%                                
Delinquency adjustment factor                                                                                                                                       25.00% 25.00%                                                                       15.00% 15.00%                                                          
Credit spreads                                                                                                                                   4.00% 4.00%                                                                       2.00% 2.00%                                                              
Visa covered litigation resolution amount                                                                                                                           5,200,000,000 5,000,000,000                                                                       4,400,000,000 4,400,000,000                                                                      
Probability of resolution scenarios                                                                                                                                                     60.00%               30.00%                                                         10.00%               10.00%                              
Time until resolution                                                                                                                                                   48 months           18 months                                                             12 months           6 months                                    
Adjustment for value changes since appraisal                                                                                                                                                                                 10.00% 10.00%                                                                       0.00% 0.00%                
Adjustments to current sales yields for specific properties                                                                                                                                               15.00% 15.00%                                                                       0.00% 0.00%                                                  
Marketability adjustments for specific properties                                                                                                                                                                             10.00% 10.00%     25.00% 25.00%                                                               0.00% 0.00%     0.00% 0.00%            
Fair Value Measurements Significant Assumptions                                                                         (a) [6]                                                                                                                                                                                                    
Discount rate                                                                                     9.80%         46.00%   11.80%                                                   30.00% 30.00%                 49.00%                                                     25.00% 25.00%                 47.00%                        
Adjustment for minority interest and small business status                                                                                                                                                                                                 50.00% 50.00%                                                                       40.00% 40.00%
Earnings capitalization rate                                                                                                                                                           25.00% 25.00%                                                                       20.00% 20.00%                                      
Borrowing base certificates adjustment                                                                                                                                                                                         50.00% 50.00%                                                                       20.00% 20.00%        
Financial statements/auction values adjustment                                                                                                                                                                                             25.00% 25.00%                                                                       0.00% 0.00%    
Draw rate                                                                                                                                                                       11.00%                                                                         2.00%                            
Cost to service                                                                                       $ 141.4             $ 118.1                                                                                                                                                                        
Earnings on escrow                                                                                         1.385% 1.385%                                                                                                                                                                                  
[1] Represents carrying value of loans for which adjustments are required to be based on the appraised value of the collateral. Write-downs on these loans are recognized as part of provision.
[2] Represents the fair value and related losses of foreclosed properties that were measured subsequent to their initial classification as foreclosed assets. Balance excludes foreclosed real estate related to government insured mortgages.
[3] Includes $3.3 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes.
[4] Includes $2.9 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes.
[5] Represents tax credit investments.
[6] The inputs and associated ranges for Other short-term borrowings mirror those of the related MSR