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Fair Value Of Assets And Liabilities (Nonrecurring Fair Value Measurements) (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | Dec. 31, 2014
Fair Value Of Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |
Loans held-for-sale |  | $ 26,789,000 |  | $ 31,443,000 | $ 26,789,000 |  | $ 31,443,000 |
Loans, net of unearned income |  | 16,725,492,000 | [1] | 15,812,017,000 | 16,725,492,000 | [1] | 15,812,017,000 | $ 16,230,166,000
Real estate acquired by foreclosure |  | 35,332,000 | [2] | 47,996,000 | 35,332,000 | [2] | 47,996,000 | $ 39,922,000
Other assets |  | 180,513,000 |  | 165,523,000 | 180,513,000 |  | 165,523,000 |
Net gains/(losses), Loans, net of unearned income | [3] | 1,195,000 |  | (736,000) | 2,729,000 |  | (1,064,000) |
Net gains/(losses), Real estate acquired by foreclosure | [4] | (706,000) |  | (707,000) | (2,366,000) |  | (2,098,000) |
Net gains/(losses), Other assets | [5] | (439,000) |  | (311,000) | (1,383,000) |  | (1,498,000) |
Gain (loss) on financial assets measured on non-recurring basis |  | 60,000 |  | (2,109,000) | (972,000) |  | (4,982,000) |
Fair Value Measurements Nonrecurring [Member] |  |  |  |  |  |  |  |
Fair Value Of Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |
Loans, net of unearned income | [3] | 27,898,000 |  | 46,634,000 | 27,898,000 |  | 46,634,000 |
Real estate acquired by foreclosure | [4] | 25,872,000 |  | 35,261,000 | 25,872,000 |  | 35,261,000 |
Other assets | [5] | 27,825,000 |  | 29,166,000 | 27,825,000 |  | 29,166,000 |
Fair Value Inputs Level2 [Member] |  |  |  |  |  |  |  |
Fair Value Of Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |
Loans held-for-sale |  | 0 |  | 0 | 0 |  | 0 |
Other assets |  | 136,213,000 |  | 134,561,000 | 136,213,000 |  | 134,561,000 |
Fair Value Inputs Level2 [Member] | Fair Value Measurements Nonrecurring [Member] |  |  |  |  |  |  |  |
Fair Value Of Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |
Loans, net of unearned income | [3] | 0 |  | 0 | 0 |  | 0 |
Real estate acquired by foreclosure | [4] | 0 |  | 0 | 0 |  | 0 |
Other assets | [5] | 0 |  | 0 | 0 |  | 0 |
Fair Value Inputs Level3 [Member] |  |  |  |  |  |  |  |
Fair Value Of Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |
Loans held-for-sale |  | 26,789,000 |  | 31,443,000 | 26,789,000 |  | 31,443,000 |
Other assets |  | 1,993,000 |  | 2,880,000 | 1,993,000 |  | 2,880,000 |
Fair Value Inputs Level3 [Member] | Fair Value Measurements Nonrecurring [Member] |  |  |  |  |  |  |  |
Fair Value Of Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |
Loans, net of unearned income | [3] | 27,898,000 |  | 46,634,000 | 27,898,000 |  | 46,634,000 |
Real estate acquired by foreclosure | [4] | 25,872,000 |  | 35,261,000 | 25,872,000 |  | 35,261,000 |
Other assets | [5] | 27,825,000 |  | 29,166,000 | 27,825,000 |  | 29,166,000 |
Fair Value Inputs Level1 [Member] |  |  |  |  |  |  |  |
Fair Value Of Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |
Loans held-for-sale |  | 0 |  | 0 | 0 |  | 0 |
Other assets |  | 42,307,000 |  | 28,082,000 | 42,307,000 |  | 28,082,000 |
Fair Value Inputs Level1 [Member] | Fair Value Measurements Nonrecurring [Member] |  |  |  |  |  |  |  |
Fair Value Of Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |
Loans, net of unearned income | [3] | 0 |  | 0 | 0 |  | 0 |
Real estate acquired by foreclosure | [4] | 0 |  | 0 | 0 |  | 0 |
Other assets | [5] | 0 |  | 0 | 0 |  | 0 |
First Mortgage [Member] |  |  |  |  |  |  |  |
Fair Value Of Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |
Net gains/(losses), Loans held for sale |  | 10,000 |  | (351,000) | 48,000 |  | (361,000) |
First Mortgage [Member] | Fair Value Measurements Nonrecurring [Member] |  |  |  |  |  |  |  |
Fair Value Of Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |
Loans held-for-sale |  | 726,000 |  | 981,000 | 726,000 |  | 981,000 |
First Mortgage [Member] | Fair Value Inputs Level2 [Member] | Fair Value Measurements Nonrecurring [Member] |  |  |  |  |  |  |  |
Fair Value Of Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |
Loans held-for-sale |  | 0 |  | 0 | 0 |  | 0 |
First Mortgage [Member] | Fair Value Inputs Level3 [Member] | Fair Value Measurements Nonrecurring [Member] |  |  |  |  |  |  |  |
Fair Value Of Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |
Loans held-for-sale |  | 726,000 |  | 981,000 | 726,000 |  | 981,000 |
First Mortgage [Member] | Fair Value Inputs Level1 [Member] | Fair Value Measurements Nonrecurring [Member] |  |  |  |  |  |  |  |
Fair Value Of Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |
Loans held-for-sale |  | $ 0 |  | 0 | $ 0 |  | 0 |
Small Business Administrations [Member] |  |  |  |  |  |  |  |
Fair Value Of Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |
Net gains/(losses), Loans held for sale |  |  |  | (4,000) |  |  | 39,000 |
Small Business Administrations [Member] | Fair Value Measurements Nonrecurring [Member] |  |  |  |  |  |  |  |
Fair Value Of Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |
Loans held-for-sale |  |  |  | 7,552,000 |  |  | 7,552,000 |
Small Business Administrations [Member] | Fair Value Inputs Level2 [Member] | Fair Value Measurements Nonrecurring [Member] |  |  |  |  |  |  |  |
Fair Value Of Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |
Loans held-for-sale |  |  |  | 7,552,000 |  |  | 7,552,000 |
Small Business Administrations [Member] | Fair Value Inputs Level3 [Member] | Fair Value Measurements Nonrecurring [Member] |  |  |  |  |  |  |  |
Fair Value Of Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |
Loans held-for-sale |  |  |  | 0 |  |  | 0 |
Small Business Administrations [Member] | Fair Value Inputs Level1 [Member] | Fair Value Measurements Nonrecurring [Member] |  |  |  |  |  |  |  |
Fair Value Of Assets And Liabilities [Line Items] |  |  |  |  |  |  |  |
Loans held-for-sale |  |  |  | $ 0 |  |  | $ 0 |
[1] | September 30, 2015 includes $30.7 million of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.
[2] | September 30, 2015 includes $ 15.6 million of foreclosed residential real estate.
[3] | 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.
[4] | Represents the fair value an d 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.
[5] | Represents tax credit investments accounted for u nder the equity method .

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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5074-111524 + Details
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