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Fair Value Of Assets And Liabilities (Nonrecurring Fair Value Measurements) (Details) - USD ($) $ in Thousands | Jun. 30, 2017 | Dec. 31, 2016 | Jun. 30, 2016
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Loans, net of unearned income |  | $ 19,989,319 | [1] | $ 19,589,520 | [1] | $ 18,589,337
Real estate acquired by foreclosure | [2] | 11,901 |  | 16,237 |  |
Non Recurring |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Loans, net of unearned income | [3] | 29,260 |  | 31,070 |  |
Real estate acquired by foreclosure | [4] | 7,038 |  | 11,235 |  |
Other assets | [5] | 28,156 |  | 29,609 |  |
Non Recurring | SBAs and USDA |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Loans held-for-sale |  | 333,331 |  | 4,286 |  |
Non Recurring | First Mortgages |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Loans held-for-sale |  | 613 |  | 638 |  |
Non Recurring | Level 1 |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Loans, net of unearned income | [3] | 0 |  | 0 |  |
Real estate acquired by foreclosure | [4] | 0 |  | 0 |  |
Other assets | [5] | 0 |  | 0 |  |
Non Recurring | Level 1 | SBAs and USDA |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Loans held-for-sale |  | 0 |  | 0 |  |
Non Recurring | Level 1 | First Mortgages |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Loans held-for-sale |  | 0 |  | 0 |  |
Non Recurring | Level 2 |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Loans, net of unearned income | [3] | 0 |  | 0 |  |
Real estate acquired by foreclosure | [4] | 0 |  | 0 |  |
Other assets | [5] | 0 |  | 0 |  |
Non Recurring | Level 2 | SBAs and USDA |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Loans held-for-sale |  | 331,754 |  | 4,286 |  |
Non Recurring | Level 2 | First Mortgages |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Loans held-for-sale |  | 0 |  | 0 |  |
Non Recurring | Level 3 |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Receivables, Fair Value Disclosure |  | 29,260 | [3],[6] | 31,070 | [7] |
Loans, net of unearned income | [3] |  |  | 31,070 |  |
Real estate acquired by foreclosure | [4] | 7,038 | [8] | 11,235 | [9] |
Other assets | [5] | 28,156 |  | 29,609 |  |
Non Recurring | Level 3 | SBAs and USDA |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Loans held-for-sale |  |  |  | 0 |  |
Non Recurring | Level 3 | First Mortgages |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Loans held-for-sale |  | $ 613 |  | $ 638 |  |
[1] | June 30, 2017 and December 31, 2016 include $28.8 million and $28.5 million, respectively, of held-to-maturity consumer mortgage loans secured by residential real estate properties in process of foreclosure.
[2] | June 30, 2017 and December 31, 2016 include $6.6 million and $8.1 million, respectively, 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 less estimated costs to sell.
[4] | Represents the fair value 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 under the equity method.
[6] | Represents carrying value of loans for which adjustments are required to be based on the appraised value of the collateral less estimated costs to sell. Write-downs on these loans are recognized as part of provision for loan losses.
[7] | Represents carrying value of loans for which adjustments are required to be based on the appraised value of the collateral less estimated costs to sell. Write-downs on these loans are recognized as part of provision for loan losses.
[8] | Represents the fair value of foreclosed properties that were measured subsequent to their initial classification as foreclosed assets. Balance excludes foreclosed real estate related to government insured mortgages.
[9] | Represents the fair value of foreclosed properties that were measured subsequent to their initial classification as foreclosed assets. Balance excludes foreclosed real estate related to government insured mortgages.

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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=65884687&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=66008989&loc=d3e5074-111524 + Details
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