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Loans and Leases (Composition of the Loans and Leases Outstanding By Credit Quality Indicator) (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans $ 19,289,474 $ 17,582,967  
PCI Loans 950,516 1,186,498 $ 1,029,426
Commercial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 12,630,489 11,205,639  
PCI Loans 593,614 726,123  
Commercial | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 620,352 493,133  
PCI Loans 33,880 78,079  
Commercial | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 8,274,548 7,552,948  
PCI Loans 525,468 577,518  
Commercial | Other commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 321,021 244,875  
PCI Loans 17,076 40,193  
Commercial | Commercial and industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 2,368,958 1,988,934  
PCI Loans 15,182 27,254  
Commercial | Lease financing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 730,778 571,916  
Commercial | Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 314,832 353,833  
PCI Loans 2,008 3,079  
Commercial | Consumer and Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
PCI Loans 2,008 3,079  
Commercial | Pass      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 12,204,677 10,773,986  
PCI Loans 294,663 342,172  
Commercial | Pass | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 611,314 474,374  
PCI Loans 14,710 13,514  
Commercial | Pass | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 8,024,831 7,284,714  
PCI Loans 262,579 300,187  
Commercial | Pass | Other commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 318,187 242,053  
PCI Loans 7,366 11,033  
Commercial | Pass | Commercial and industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 2,219,606 1,859,415  
PCI Loans 9,302 16,637  
Commercial | Pass | Lease financing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 719,338 564,319  
Commercial | Pass | Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 311,401 349,111  
Commercial | Pass | Consumer and Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
PCI Loans 706 801  
Commercial | Special Mention      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 132,021 176,355  
PCI Loans 89,625 125,195  
Commercial | Special Mention | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 5,191 13,927  
PCI Loans 758 6,063  
Commercial | Special Mention | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 100,220 129,247  
PCI Loans 87,870 98,724  
Commercial | Special Mention | Other commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 475 909  
PCI Loans 60 16,271  
Commercial | Special Mention | Commercial and industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 19,361 27,683  
PCI Loans 937 4,137  
Commercial | Special Mention | Lease financing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 4,869 3,205  
Commercial | Special Mention | Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 1,905 1,384  
Commercial | Special Mention | Consumer and Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
PCI Loans 0 0  
Commercial | Substandard      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 180,100 157,333  
PCI Loans 193,051 247,138  
Commercial | Substandard | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 3,847 4,720  
PCI Loans 14,131 53,739  
Commercial | Substandard | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 146,071 134,677  
PCI Loans 163,801 171,920  
Commercial | Substandard | Other commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 959 1,765  
PCI Loans 9,229 12,889  
Commercial | Substandard | Commercial and industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 21,322 8,878  
PCI Loans 4,588 6,312  
Commercial | Substandard | Lease financing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 6,375 3,955  
Commercial | Substandard | Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 1,526 3,338  
Commercial | Substandard | Consumer and Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
PCI Loans 1,302 2,278  
Commercial | Doubtful      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 1,176 2,895  
PCI Loans 15,438 9,241  
Commercial | Doubtful | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 0 0  
PCI Loans 4,281 2,809  
Commercial | Doubtful | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 599 2,366  
PCI Loans 10,875 6,302  
Commercial | Doubtful | Other commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 0 0  
PCI Loans 0 0  
Commercial | Doubtful | Commercial and industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 408 164  
PCI Loans 282 130  
Commercial | Doubtful | Lease financing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 169 365  
Commercial | Doubtful | Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 0 0  
Commercial | Doubtful | Consumer and Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
PCI Loans 0 0  
Commercial | Ungraded      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 112,515 95,070  
PCI Loans 837 2,377  
Commercial | Ungraded | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 0 112  
PCI Loans 0 1,954  
Commercial | Ungraded | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 2,827 1,944  
PCI Loans 343 385  
Commercial | Ungraded | Other commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 1,400 148  
PCI Loans 421 0  
Commercial | Ungraded | Commercial and industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 108,261 92,794  
PCI Loans 73 38  
Commercial | Ungraded | Lease financing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 27 72  
Commercial | Ungraded | Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 0 0  
Commercial | Ungraded | Consumer and Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
PCI Loans 0 0  
Noncommercial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 6,658,985 6,377,328  
PCI Loans 356,902 460,375  
Noncommercial | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 220,073 205,016  
PCI Loans 0 912  
Noncommercial | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 2,695,985 2,493,058  
PCI Loans 302,158 382,340  
Noncommercial | Revolving mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 2,523,106 2,561,800  
PCI Loans 52,471 74,109  
Noncommercial | Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 1,219,821 1,117,454  
PCI Loans 2,273 3,014  
Non-PCI Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 19,289,474 17,582,967  
Current 19,167,898 17,481,500  
Past Due 121,576 101,467  
Non-PCI Loans | Commercial | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 620,352 493,133  
Current 618,619 492,000  
Past Due 1,733 1,133  
Non-PCI Loans | Commercial | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 8,274,548 7,552,948  
Current 8,243,584 7,528,738  
Past Due 30,964 24,210  
Non-PCI Loans | Commercial | Other commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 321,021 244,875  
Current 319,995 244,497  
Past Due 1,026 378  
Non-PCI Loans | Commercial | Commercial and industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 2,368,958 1,988,934  
Current 2,363,966 1,984,168  
Past Due 4,992 4,766  
Non-PCI Loans | Commercial | Lease financing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 730,778 571,916  
Current 728,542 570,275  
Past Due 2,236 1,641  
Non-PCI Loans | Commercial | Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 314,832 353,833  
Current 314,531 351,721  
Past Due 301 2,112  
Non-PCI Loans | Noncommercial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 6,658,985 6,377,328  
Current 6,578,661 6,310,101  
Non-PCI Loans | Noncommercial | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 220,073 205,016  
Current 214,555 202,344  
Past Due 5,518 2,672  
Non-PCI Loans | Noncommercial | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 2,695,985 2,493,058  
Current 2,651,209 2,454,797  
Past Due 44,776 38,261  
Non-PCI Loans | Noncommercial | Revolving mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 2,523,106 2,561,800  
Current 2,502,065 2,542,807  
Past Due 21,041 18,993  
Non-PCI Loans | Noncommercial | Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Non-PCI Loans 1,219,821 1,117,454  
Current 1,210,832 1,110,153  
Past Due 8,989 7,301  
PCI Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
PCI Loans   1,186,498  
PCI Loans | Commercial | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
PCI Loans 33,880 78,079  
PCI Loans | Commercial | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
PCI Loans 525,468 577,518  
PCI Loans | Commercial | Other commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
PCI Loans 17,076 40,193  
PCI Loans | Commercial | Commercial and industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
PCI Loans 15,182 27,254  
PCI Loans | Noncommercial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 307,089 398,225  
PCI Loans 356,902 460,375  
PCI Loans | Noncommercial | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 0 506  
PCI Loans 0 912  
PCI Loans | Noncommercial | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 257,207 326,589  
PCI Loans 302,158 382,340  
PCI Loans | Noncommercial | Revolving mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 47,901 68,548  
PCI Loans 52,471 74,109  
PCI Loans | Noncommercial | Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 1,981 2,582  
PCI Loans 2,273 3,014  
PCI Loans | Noncommercial | Consumer and Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
PCI Loans 4,281 6,093  
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-PCI Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 63,522 57,321  
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-PCI Loans | Commercial | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 987 520  
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-PCI Loans | Commercial | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 13,023 11,367  
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-PCI Loans | Commercial | Other commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 884 206  
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-PCI Loans | Commercial | Commercial and industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 2,133 2,843  
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-PCI Loans | Commercial | Lease financing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 2,070 1,631  
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-PCI Loans | Commercial | Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 3 146  
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-PCI Loans | Noncommercial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 44,422 40,608  
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-PCI Loans | Noncommercial | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 3,211 1,646  
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-PCI Loans | Noncommercial | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 23,960 23,288  
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-PCI Loans | Noncommercial | Revolving mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 11,706 11,097  
Financing Receivables, 30 to 59 Days Past Due [Member] | Non-PCI Loans | Noncommercial | Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 5,545 4,577  
Financing Receivables, 30 to 59 Days Past Due [Member] | PCI Loans | Noncommercial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 13,531 12,984  
Financing Receivables, 30 to 59 Days Past Due [Member] | PCI Loans | Noncommercial | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 0 0  
Financing Receivables, 30 to 59 Days Past Due [Member] | PCI Loans | Noncommercial | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 12,318 11,432  
Financing Receivables, 30 to 59 Days Past Due [Member] | PCI Loans | Noncommercial | Revolving mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 1,127 1,405  
Financing Receivables, 30 to 59 Days Past Due [Member] | PCI Loans | Noncommercial | Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 86 147  
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-PCI Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 18,705 19,548  
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-PCI Loans | Commercial | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 283 283  
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-PCI Loans | Commercial | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 3,446 4,782  
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-PCI Loans | Commercial | Other commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 0 70  
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-PCI Loans | Commercial | Commercial and industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 1,079 1,545  
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-PCI Loans | Commercial | Lease financing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 2 8  
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-PCI Loans | Commercial | Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 164 1,966  
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-PCI Loans | Noncommercial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 13,731 10,894  
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-PCI Loans | Noncommercial | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 669 824  
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-PCI Loans | Noncommercial | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 7,536 6,018  
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-PCI Loans | Noncommercial | Revolving mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 3,704 2,433  
Financing Receivables, 60 to 89 Days Past Due [Member] | Non-PCI Loans | Noncommercial | Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 1,822 1,619  
Financing Receivables, 60 to 89 Days Past Due [Member] | PCI Loans | Noncommercial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 5,074 10,443  
Financing Receivables, 60 to 89 Days Past Due [Member] | PCI Loans | Noncommercial | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 0 0  
Financing Receivables, 60 to 89 Days Past Due [Member] | PCI Loans | Noncommercial | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 4,441 10,073  
Financing Receivables, 60 to 89 Days Past Due [Member] | PCI Loans | Noncommercial | Revolving mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 501 345  
Financing Receivables, 60 to 89 Days Past Due [Member] | PCI Loans | Noncommercial | Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 132 25  
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-PCI Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 39,349 24,598  
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-PCI Loans | Commercial | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 463 330  
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-PCI Loans | Commercial | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 14,495 8,061  
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-PCI Loans | Commercial | Other commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 142 102  
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-PCI Loans | Commercial | Commercial and industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 1,780 378  
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-PCI Loans | Commercial | Lease financing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 164 2  
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-PCI Loans | Commercial | Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 134 0  
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-PCI Loans | Noncommercial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 22,171 15,725  
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-PCI Loans | Noncommercial | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 1,638 202  
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-PCI Loans | Noncommercial | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 13,280 8,955  
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-PCI Loans | Noncommercial | Revolving mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 5,631 5,463  
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non-PCI Loans | Noncommercial | Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 1,622 1,105  
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | PCI Loans | Noncommercial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 31,208 38,723  
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | PCI Loans | Noncommercial | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 0 406  
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | PCI Loans | Noncommercial | Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 28,192 34,246  
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | PCI Loans | Noncommercial | Revolving mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due 2,942 3,811  
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | PCI Loans | Noncommercial | Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past Due $ 74 $ 260