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Loans and Leases (Aging Of The Outstanding Loans and Leases By Class) (Details) - USD ($) $ in Thousands | Jun. 30, 2016 | Dec. 31, 2015 | Jun. 30, 2015 | Dec. 31, 2014
--- | --- | --- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
PCI loans | $ 921,467 | $ 950,516 | $ 1,123,239 | $ 1,186,498
Commercial |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
PCI loans | 576,942 | 593,614 |  |
Non-PCI loans | 13,003,972 | 12,630,489 |  |
Commercial | Construction and land development |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
PCI loans | 27,742 | 33,880 |  |
Non-PCI loans | 624,806 | 620,352 |  |
Commercial | Mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
PCI loans | 513,021 | 525,468 |  |
Non-PCI loans | 8,505,259 | 8,274,548 |  |
Commercial | Other commercial real estate |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
PCI loans | 20,166 | 17,076 |  |
Non-PCI loans | 337,618 | 321,021 |  |
Commercial | Commercial and industrial |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
PCI loans | 12,854 | 15,182 |  |
Non-PCI loans | 2,386,159 | 2,368,958 |  |
Commercial | Lease financing |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Non-PCI loans | 784,861 | 730,778 |  |
Commercial | Other |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
PCI loans | 3,159 | 2,008 |  |
Non-PCI loans | 365,269 | 314,832 |  |
Noncommercial |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
PCI loans | 344,525 | 356,902 |  |
Noncommercial | Construction and land development |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
PCI loans | 467 | 0 |  |
Noncommercial | Mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
PCI loans | 294,625 | 302,158 |  |
Noncommercial | Revolving mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
PCI loans | 47,230 | 52,471 |  |
Noncommercial | Consumer |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
PCI loans | 2,203 | 2,273 |  |
PCI Loans |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
PCI loans | 921,467 | 950,516 |  |
PCI Loans | Noncommercial |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Current loans | 296,783 | 307,089 |  |
PCI Loans | Noncommercial | Construction and land development |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Current loans | 467 | 0 |  |
PCI Loans | Noncommercial | Mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Current loans | 252,675 | 257,207 |  |
PCI Loans | Noncommercial | Revolving mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Current loans | 41,655 | 47,901 |  |
PCI Loans | Noncommercial | Consumer |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Current loans | 1,986 | 1,981 |  |
Non-PCI Loans |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 110,432 | 121,576 |  |
Current loans | 19,710,672 | 19,167,898 |  |
Non-PCI loans | 19,821,104 | 19,289,474 |  |
Non-PCI Loans | Commercial | Construction and land development |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 712 | 1,733 |  |
Current loans | 624,094 | 618,619 |  |
Non-PCI loans | 624,806 | 620,352 |  |
Non-PCI Loans | Commercial | Mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 26,020 | 30,964 |  |
Current loans | 8,479,239 | 8,243,584 |  |
Non-PCI loans | 8,505,259 | 8,274,548 |  |
Non-PCI Loans | Commercial | Other commercial real estate |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 1,240 | 1,026 |  |
Current loans | 336,378 | 319,995 |  |
Non-PCI loans | 337,618 | 321,021 |  |
Non-PCI Loans | Commercial | Commercial and industrial |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 9,787 | 4,992 |  |
Current loans | 2,376,372 | 2,363,966 |  |
Non-PCI loans | 2,386,159 | 2,368,958 |  |
Non-PCI Loans | Commercial | Lease financing |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 1,570 | 2,236 |  |
Current loans | 783,291 | 728,542 |  |
Non-PCI loans | 784,861 | 730,778 |  |
Non-PCI Loans | Commercial | Other |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 723 | 301 |  |
Current loans | 364,546 | 314,531 |  |
Non-PCI loans | 365,269 | 314,832 |  |
Non-PCI Loans | Noncommercial |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Current loans | 6,746,752 | 6,578,661 |  |
Non-PCI loans | 6,817,132 | 6,658,985 |  |
Non-PCI Loans | Noncommercial | Construction and land development |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 2,851 | 5,518 |  |
Current loans | 223,471 | 214,555 |  |
Non-PCI loans | 226,322 | 220,073 |  |
Non-PCI Loans | Noncommercial | Mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 42,022 | 44,776 |  |
Current loans | 2,735,841 | 2,651,209 |  |
Non-PCI loans | 2,777,863 | 2,695,985 |  |
Non-PCI Loans | Noncommercial | Revolving mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 16,495 | 21,041 |  |
Current loans | 2,517,033 | 2,502,065 |  |
Non-PCI loans | 2,533,528 | 2,523,106 |  |
Non-PCI Loans | Noncommercial | Consumer |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 9,012 | 8,989 |  |
Current loans | 1,270,407 | 1,210,832 |  |
Non-PCI loans | 1,279,419 | 1,219,821 |  |
90 Days or greater | PCI Loans | Noncommercial |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 30,225 | 31,208 |  |
90 Days or greater | PCI Loans | Noncommercial | Construction and land development |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 0 | 0 |  |
90 Days or greater | PCI Loans | Noncommercial | Mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 26,281 | 28,192 |  |
90 Days or greater | PCI Loans | Noncommercial | Revolving mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 3,894 | 2,942 |  |
90 Days or greater | PCI Loans | Noncommercial | Consumer |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 50 | 74 |  |
90 Days or greater | Non-PCI Loans |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 38,224 | 39,349 |  |
90 Days or greater | Non-PCI Loans | Commercial | Construction and land development |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 295 | 463 |  |
90 Days or greater | Non-PCI Loans | Commercial | Mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 10,896 | 14,495 |  |
90 Days or greater | Non-PCI Loans | Commercial | Other commercial real estate |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 27 | 142 |  |
90 Days or greater | Non-PCI Loans | Commercial | Commercial and industrial |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 2,169 | 1,780 |  |
90 Days or greater | Non-PCI Loans | Commercial | Lease financing |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 368 | 164 |  |
90 Days or greater | Non-PCI Loans | Commercial | Other |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 397 | 134 |  |
90 Days or greater | Non-PCI Loans | Noncommercial |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 24,072 | 22,171 |  |
90 Days or greater | Non-PCI Loans | Noncommercial | Construction and land development |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 1,554 | 1,638 |  |
90 Days or greater | Non-PCI Loans | Noncommercial | Mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 15,160 | 13,280 |  |
90 Days or greater | Non-PCI Loans | Noncommercial | Revolving mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 5,963 | 5,631 |  |
90 Days or greater | Non-PCI Loans | Noncommercial | Consumer |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 1,395 | 1,622 |  |
60 to 89 Days past due | PCI Loans | Noncommercial |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 5,057 | 5,074 |  |
60 to 89 Days past due | PCI Loans | Noncommercial | Construction and land development |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 0 | 0 |  |
60 to 89 Days past due | PCI Loans | Noncommercial | Mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 4,654 | 4,441 |  |
60 to 89 Days past due | PCI Loans | Noncommercial | Revolving mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 358 | 501 |  |
60 to 89 Days past due | PCI Loans | Noncommercial | Consumer |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 45 | 132 |  |
60 to 89 Days past due | Non-PCI Loans |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 17,800 | 18,705 |  |
60 to 89 Days past due | Non-PCI Loans | Commercial | Construction and land development |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 188 | 283 |  |
60 to 89 Days past due | Non-PCI Loans | Commercial | Mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 6,026 | 3,446 |  |
60 to 89 Days past due | Non-PCI Loans | Commercial | Other commercial real estate |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 99 | 0 |  |
60 to 89 Days past due | Non-PCI Loans | Commercial | Commercial and industrial |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 896 | 1,079 |  |
60 to 89 Days past due | Non-PCI Loans | Commercial | Lease financing |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 106 | 2 |  |
60 to 89 Days past due | Non-PCI Loans | Commercial | Other |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 142 | 164 |  |
60 to 89 Days past due | Non-PCI Loans | Noncommercial |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 10,343 | 13,731 |  |
60 to 89 Days past due | Non-PCI Loans | Noncommercial | Construction and land development |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 278 | 669 |  |
60 to 89 Days past due | Non-PCI Loans | Noncommercial | Mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 5,545 | 7,536 |  |
60 to 89 Days past due | Non-PCI Loans | Noncommercial | Revolving mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 2,476 | 3,704 |  |
60 to 89 Days past due | Non-PCI Loans | Noncommercial | Consumer |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 2,044 | 1,822 |  |
30 to 59 Days past due | PCI Loans | Noncommercial |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 12,460 | 13,531 |  |
30 to 59 Days past due | PCI Loans | Noncommercial | Construction and land development |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 0 | 0 |  |
30 to 59 Days past due | PCI Loans | Noncommercial | Mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 11,015 | 12,318 |  |
30 to 59 Days past due | PCI Loans | Noncommercial | Revolving mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 1,323 | 1,127 |  |
30 to 59 Days past due | PCI Loans | Noncommercial | Consumer |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 122 | 86 |  |
30 to 59 Days past due | Non-PCI Loans |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 54,408 | 63,522 |  |
30 to 59 Days past due | Non-PCI Loans | Commercial | Construction and land development |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 229 | 987 |  |
30 to 59 Days past due | Non-PCI Loans | Commercial | Mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 9,098 | 13,023 |  |
30 to 59 Days past due | Non-PCI Loans | Commercial | Other commercial real estate |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 1,114 | 884 |  |
30 to 59 Days past due | Non-PCI Loans | Commercial | Commercial and industrial |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 6,722 | 2,133 |  |
30 to 59 Days past due | Non-PCI Loans | Commercial | Lease financing |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 1,096 | 2,070 |  |
30 to 59 Days past due | Non-PCI Loans | Commercial | Other |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 184 | 3 |  |
30 to 59 Days past due | Non-PCI Loans | Noncommercial |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 35,965 | 44,422 |  |
30 to 59 Days past due | Non-PCI Loans | Noncommercial | Construction and land development |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 1,019 | 3,211 |  |
30 to 59 Days past due | Non-PCI Loans | Noncommercial | Mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 21,317 | 23,960 |  |
30 to 59 Days past due | Non-PCI Loans | Noncommercial | Revolving mortgage |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | 8,056 | 11,706 |  |
30 to 59 Days past due | Non-PCI Loans | Noncommercial | Consumer |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |
Past due loans | $ 5,573 | $ 5,545 |  |

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