Basis points increments used while modifying interest rates on TDRs.

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Business Acquisition Purchase Price Allocation Loans Receivable.

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Commercial Loan Grades

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Credit card workout program - Granted rate reduction, percentage, minimum.

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Credit card workout program, maximum, term extension.

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TDRs are modified through forearance agreements generally for 3 to 6 months.

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- Definition

Impaired Commercial Loans

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After 5 years the interest rate steps up 1 percent every year thereafter until it reaches the Federal Home Loan Mortgage Coprporation Weekly Survey Rate cap.

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Modified Interest Rate, Minimum.

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Modified Interest Rate Time Period, Maximum.

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For credit card hardship program, time range that payment reductions may be granted for modified loans classified as TDRs.

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Percentage of Commercial And Industrial Loan Portfolio

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Ratio Of The Allowance For Loan Losses To Loans

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Maximum maturities for TDRs.

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Time period to determine PD grade default probabilty percentage.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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-Name Staff Accounting Bulletin (SAB)

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Amount before allowance of commercial loans and leases receivable includes, but not limited to, commercial and industrial loans, agricultural loans, mortgage loans, promissory notes, interbank and other loans to financial institutions, draws against credit facilities, trade financing, lease financings. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Reflects the carrying amount of loans deemed to be questionable as to collection on which no interest is continuing to be recognized.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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Loans (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended																6 Months Ended									6 Months Ended	3 Months Ended		6 Months Ended																6 Months Ended																				6 Months Ended
Loans (Narrative) (Details) (USD $)	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2011	Jun. 07, 2013 Acquired From FDIC [Member] Mountain National Bank [Member]	Jun. 30, 2013 Second Liens [Member]	Jun. 30, 2013 Permanent Mortgage Portfolio Segment [Member]	Mar. 31, 2013 Permanent Mortgage Portfolio Segment [Member]	Dec. 31, 2012 Permanent Mortgage Portfolio Segment [Member]	Jun. 30, 2012 Permanent Mortgage Portfolio Segment [Member]	Mar. 31, 2012 Permanent Mortgage Portfolio Segment [Member]	Dec. 31, 2011 Permanent Mortgage Portfolio Segment [Member]	Jun. 30, 2013 Loans Held For Sale [Member]	Jun. 30, 2012 Loans Held For Sale [Member]	Jun. 30, 2013 Residential Real Estate [Member]	Jun. 30, 2013 Consumer Real Estate Portfolio Segment [Member]	Mar. 31, 2013 Consumer Real Estate Portfolio Segment [Member]	Dec. 31, 2012 Consumer Real Estate Portfolio Segment [Member]	Jun. 30, 2012 Consumer Real Estate Portfolio Segment [Member]	Mar. 31, 2012 Consumer Real Estate Portfolio Segment [Member]	Dec. 31, 2011 Consumer Real Estate Portfolio Segment [Member]	Jun. 30, 2013 Modified Loans Classified As Tdr [Member]	Jun. 30, 2012 Modified Loans Classified As Tdr [Member]	Jun. 30, 2013 Loans To Mortgage Companies [Member]	Jun. 30, 2013 Commercial Portfolio Segment [Member]	Jun. 30, 2012 Commercial Portfolio Segment [Member]	Jun. 30, 2013 Commercial Portfolio Segment [Member]	Jun. 30, 2012 Commercial Portfolio Segment [Member]	Jun. 30, 2013 Credit Card And Other Portfolio Segment [Member]	Mar. 31, 2013 Credit Card And Other Portfolio Segment [Member]	Dec. 31, 2012 Credit Card And Other Portfolio Segment [Member]	Jun. 30, 2012 Credit Card And Other Portfolio Segment [Member]	Mar. 31, 2012 Credit Card And Other Portfolio Segment [Member]	Dec. 31, 2011 Credit Card And Other Portfolio Segment [Member]	Jun. 30, 2013 Credit Card Portfolio Class [Member]	Jun. 30, 2013 Heloc Real Estate Installment And Permanent Mortgage Classes [Member]	Jun. 30, 2013 Restricted Consumer Real Estate Loans And Secured Borrowings [Member]	Dec. 31, 2012 Restricted Consumer Real Estate Loans And Secured Borrowings [Member]	Jun. 30, 2012 Restricted Consumer Real Estate Loans And Secured Borrowings [Member]	Jun. 30, 2013 Restricted Permanent Mortgage Real Estate Loans And Secured Borrowings [Member]	Dec. 31, 2012 Restricted Permanent Mortgage Real Estate Loans And Secured Borrowings [Member]	Jun. 30, 2012 Restricted Permanent Mortgage Real Estate Loans And Secured Borrowings [Member]	Jun. 30, 2013 Finance And Insurance Companies [Member]	Jun. 30, 2013 Finance Insurance And Loans To Mortgage Companies [Member]	Jun. 30, 2013 Maximum [Member] Commercial Loan P D Grade Sixteen [Member] number	Jun. 30, 2013 Maximum [Member] Commercial Loan L G D Grade Twelve [Member] number	Jun. 30, 2013 Maximum [Member] Bank Related And Trups [Member] Commercial Loan P D Grade Thirteen [Member] number	Jun. 30, 2013 Maximum [Member] Commercial Portfolio Segment [Member]	Jun. 30, 2013 Maximum [Member] Credit Card Portfolio Class [Member]	Jun. 30, 2013 Minimum [Member]	Jun. 30, 2013 Minimum [Member] Commercial Loan P D Grade One [Member] number	Jun. 30, 2013 Minimum [Member] Commercial Loan P D Grade Thirteen [Member]	Jun. 30, 2013 Minimum [Member] Commercial Loan L G D Grade One [Member] number	Jun. 30, 2013 Minimum [Member] Permanent Mortgage Portfolio Segment [Member]	Jun. 30, 2013 Minimum [Member] Commercial Portfolio Segment [Member]	Jun. 30, 2013 Minimum [Member] Commercial Portfolio Segment [Member] Non Accruing [Member]	Jun. 30, 2013 Minimum [Member] Credit Card Portfolio Class [Member]	Jun. 30, 2013 Minimum [Member] Heloc Real Estate Installment And Permanent Mortgage Classes [Member]	Jun. 30, 2013 PD Grade Commercial Loan P D Grade Twelve [Member] number	Jun. 30, 2013 PD Grade Commercial Loan P D Grade Thirteen [Member] number	Jun. 30, 2013 PD Grade Commercial Loan P D Grade Fourteen [Member] number	Jun. 30, 2013 PD Grade Commercial Loan P D Grade Fifteen [Member] number	Jun. 30, 2013 PD Grade Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of commercial & industrial loan portfolio																												16.00%																			19.00%	35.00%
Concentration risk, percentage																			39.00%	34.00%								9.00%																			10.00%
Impaired commercial loans																																																												$ 1,000,000
Troubled debt restructurings loans	395,700,000	338,800,000	395,700,000	338,800,000													188,900,000	139,300,000
Allowance for loan losses	261,934,000	321,051,000	261,934,000	321,051,000	265,218,000	276,963,000	346,016,000	384,351,000			27,103,000	25,448,000	24,928,000	29,112,000	32,572,000	26,194,000				120,848,000	131,417,000	128,949,000	133,421,000	141,647,000	165,077,000	67,500,000	64,400,000						6,550,000	7,110,000	6,898,000	6,327,000	6,170,000	7,081,000
Ratio of the allowance for loan losses to loans																										17.00%	19.00%
Average balance of impaired loans	471,344,000	493,895,000	477,100,000	489,837,000																									160,503,000	260,832,000	169,748,000	269,929,000
Interest income recognized on impaired loan	1,829,000	1,820,000	3,460,000	3,526,000																									248,000	389,000	477,000	790,000
Commercial loans																												1,400,000,000																			1,600,000,000							1,000,000		500,000
Forbearance agreements time period																																																				12 months							6 months
TDR, reduction of interest rate by increment, basis points											0.25%																													0.25%
Modified interest rate																																																										2.00%				1.00%
Modified interest rate time period											5 years																													5 years
TDRS Maturities											40 years									30 years
Payment reductions, time period																																																					1 year								6 months
Credit card workout program, granted rate reduction																																							0.00%
Credit card workout program, term extension																																							5 years
Commercial loan grades																																																	16	12	13				1		1						12	13	14	15
Time period of default probability																																																																			1 year
Loans, net of unearned income	16,197,046,000	16,185,763,000	16,197,046,000	16,185,763,000		16,708,582,000					746,154,000			755,707,000						5,549,440,000			5,855,564,000										316,085,000			278,958,000					367,000,000	402,400,000	447,500,000	12,400,000	13,200,000	16,900,000
Loans acquired									249,001,000
Loans, net of unearned income, nonperforming, nonaccruing										$ 56,000,000
Interest rate increase											1.00%