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Loans and Leases (Aging Of The Outstanding Loans and Leases By Class) (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Past due loans | $ 249,119 | $ 272,770
Current loans | 32,596,025 | 28,608,726
Total loans and leases | 32,845,144 | 28,881,496
Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans and leases | 22,613,932 |
Commercial | Construction and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans and leases | 1,054,186 |
Commercial | Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans and leases | 4,797,344 |
Commercial | SBA-PPP |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans and leases | 3,112,676 |
Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans and leases | 9,735,334 |
Consumer | Construction and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans and leases | 347,850 |
Consumer | Residential mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans and leases | 5,463,646 |
Consumer | Revolving mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans and leases | 2,145,506 |
Non-PCI Loans | Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans |  | 74,146
Current loans |  | 18,477,856
Total loans and leases |  | 18,552,002
Non-PCI Loans | Commercial | Construction and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 9,362 | 6,043
Current loans | 1,044,824 | 1,007,411
Total loans and leases | 1,054,186 | 1,013,454
Non-PCI Loans | Commercial | Mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 35,261 | 37,482
Current loans | 10,648,561 | 12,245,153
Total loans and leases | 10,683,822 | 12,282,635
Non-PCI Loans | Commercial | Other commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 23,906 | 1,890
Current loans | 2,941,998 | 540,138
Total loans and leases | 2,965,904 | 542,028
Non-PCI Loans | Commercial | Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 16,183 | 28,143
Current loans | 4,781,161 | 4,375,649
Total loans and leases | 4,797,344 | 4,403,792
Non-PCI Loans | Commercial | Other |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 84,712 | 588
Current loans | 22,529,220 | 309,505
Total loans and leases | 22,613,932 | 310,093
Non-PCI Loans | Commercial | SBA-PPP |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 |
Current loans | 3,112,676 |
Total loans and leases | 3,112,676 |
Non-PCI Loans | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 112,470 | 132,389
Current loans | 9,622,864 | 9,638,389
Total loans and leases | 9,735,334 | 9,770,778
Non-PCI Loans | Consumer | Construction and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 6,214 | 2,992
Current loans | 1,227,982 | 354,393
Total loans and leases | 1,234,196 | 357,385
Non-PCI Loans | Consumer | Mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans |  | 88,537
Current loans |  | 5,205,380
Total loans and leases |  | 5,293,917
Non-PCI Loans | Consumer | Residential mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 80,173 |
Current loans | 5,383,473 |
Total loans and leases | 5,463,646 |
Non-PCI Loans | Consumer | Revolving mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 17,567 |
Current loans | 2,127,939 |
Total loans and leases | 2,145,506 |
Non-PCI Loans | Consumer | Revolving mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 1,235 | 23,062
Current loans | 346,615 | 2,316,010
Total loans and leases | 347,850 | 2,339,072
Non-PCI Loans | Consumer | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 7,281 | 17,798
Current loans | 536,855 | 1,762,606
Total loans and leases | 544,136 | 1,780,404
PCD Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 51,937 | 66,235
Current loans | 443,941 | 492,481
Total loans and leases | 495,878 | 558,716
PCD Loans | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Current loans |  | 240,995
30 to 59 Days past due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 121,823 | 136,220
30 to 59 Days past due | Consumer | Construction and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans and leases | 923 |
30 to 59 Days past due | Consumer | Residential mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans and leases | 37,921 |
30 to 59 Days past due | Consumer | Revolving mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans and leases | 8,477 |
30 to 59 Days past due | Non-PCI Loans | Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans |  | 42,716
30 to 59 Days past due | Non-PCI Loans | Commercial | Construction and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 7,860 | 3,146
30 to 59 Days past due | Non-PCI Loans | Commercial | Mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 23,354 | 20,389
30 to 59 Days past due | Non-PCI Loans | Commercial | Other commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 9,854 | 861
30 to 59 Days past due | Non-PCI Loans | Commercial | Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 8,401 | 18,269
30 to 59 Days past due | Non-PCI Loans | Commercial | Other |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 49,469 | 51
30 to 59 Days past due | Non-PCI Loans | Commercial | SBA-PPP |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 |
30 to 59 Days past due | Non-PCI Loans | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 56,056 | 67,026
30 to 59 Days past due | Non-PCI Loans | Consumer | Construction and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 4,245 | 977
30 to 59 Days past due | Non-PCI Loans | Consumer | Mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans |  | 45,839
30 to 59 Days past due | Non-PCI Loans | Consumer | Residential mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 37,921 |
30 to 59 Days past due | Non-PCI Loans | Consumer | Revolving mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 8,477 |
30 to 59 Days past due | Non-PCI Loans | Consumer | Revolving mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 923 | 9,729
30 to 59 Days past due | Non-PCI Loans | Consumer | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 4,490 | 10,481
30 to 59 Days past due | PCD Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 16,298 | 26,478
Total loans and leases | 16,298 |
30 to 59 Days past due | PCD Loans | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans |  | 13,764
60 to 89 Days past due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 29,490 | 51,058
60 to 89 Days past due | Consumer | Construction and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans and leases | 0 |
60 to 89 Days past due | Consumer | Residential mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans and leases | 5,811 |
60 to 89 Days past due | Consumer | Revolving mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans and leases | 1,582 |
60 to 89 Days past due | Non-PCI Loans | Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans |  | 14,553
60 to 89 Days past due | Non-PCI Loans | Commercial | Construction and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 195
60 to 89 Days past due | Non-PCI Loans | Commercial | Mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 5,212 | 8,774
60 to 89 Days past due | Non-PCI Loans | Commercial | Other commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 7,381 | 331
60 to 89 Days past due | Non-PCI Loans | Commercial | Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 3,920 | 4,842
60 to 89 Days past due | Non-PCI Loans | Commercial | Other |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 16,513 | 411
60 to 89 Days past due | Non-PCI Loans | Commercial | SBA-PPP |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 |
60 to 89 Days past due | Non-PCI Loans | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 9,776 | 25,721
60 to 89 Days past due | Non-PCI Loans | Consumer | Construction and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 1,059 | 218
60 to 89 Days past due | Non-PCI Loans | Consumer | Mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans |  | 18,289
60 to 89 Days past due | Non-PCI Loans | Consumer | Residential mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 5,811 |
60 to 89 Days past due | Non-PCI Loans | Consumer | Revolving mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 1,582 |
60 to 89 Days past due | Non-PCI Loans | Consumer | Revolving mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 3,468
60 to 89 Days past due | Non-PCI Loans | Consumer | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 1,324 | 3,746
60 to 89 Days past due | PCD Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 3,201 | 10,784
Total loans and leases | 3,201 |
60 to 89 Days past due | PCD Loans | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans |  | 5,608
90 Days or greater |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 97,806 | 85,492
90 Days or greater | Consumer | Construction and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans and leases | 312 |
90 Days or greater | Consumer | Residential mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans and leases | 36,441 |
90 Days or greater | Consumer | Revolving mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans and leases | 7,508 |
90 Days or greater | Non-PCI Loans | Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans |  | 16,877
90 Days or greater | Non-PCI Loans | Commercial | Construction and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 1,502 | 2,702
90 Days or greater | Non-PCI Loans | Commercial | Mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 6,695 | 8,319
90 Days or greater | Non-PCI Loans | Commercial | Other commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 6,671 | 698
90 Days or greater | Non-PCI Loans | Commercial | Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 3,862 | 5,032
90 Days or greater | Non-PCI Loans | Commercial | Other |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 18,730 | 126
90 Days or greater | Non-PCI Loans | Commercial | SBA-PPP |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 |
90 Days or greater | Non-PCI Loans | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 46,638 | 39,642
90 Days or greater | Non-PCI Loans | Consumer | Construction and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 910 | 1,797
90 Days or greater | Non-PCI Loans | Consumer | Mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans |  | 24,409
90 Days or greater | Non-PCI Loans | Consumer | Residential mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 36,441 |
90 Days or greater | Non-PCI Loans | Consumer | Revolving mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 7,508 |
90 Days or greater | Non-PCI Loans | Consumer | Revolving mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 312 | 9,865
90 Days or greater | Non-PCI Loans | Consumer | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 1,467 | 3,571
90 Days or greater | PCD Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 32,438 | 28,973
Total loans and leases | $ 32,438 |
90 Days or greater | PCD Loans | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans |  | $ 14,020

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