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Allowance for Loan and Lease Losses (Troubled Debt Restructuring) (Details)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
USD ($)
loans
Jun. 30, 2014
USD ($)
loans
Jun. 30, 2015
USD ($)
loans
Jun. 30, 2014
USD ($)
loans
Dec. 31, 2014
USD ($)
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment $ 151,577   $ 151,577   $ 151,479
Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 48 35 124 120  
Financing Receivable, Modifications, Recorded Investment $ 108,247   $ 108,247   104,607
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 4,177 $ 6,139 $ 15,317 $ 20,657  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 5 6 12 11  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 217 $ 2,057 $ 2,940 $ 2,944  
PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 1 31 9 67  
Financing Receivable, Modifications, Recorded Investment $ 43,330   $ 43,330   46,872
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 60 $ 5,123 $ 623 $ 10,614  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 2 0 8  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 76 $ 0 $ 253  
Commercial          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 115,185   115,185   118,166
Commercial | Construction and land development          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 4,133   4,133   3,037
Commercial | Mortgage          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 95,647   95,647   101,121
Commercial | Other commercial real estate          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 2,299   2,299   2,823
Commercial | Commercial and industrial          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 11,659   11,659   10,528
Commercial | Lease financing          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 1,447   1,447   623
Commercial | Other          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 0   0   34
Noncommerical          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 36,392   36,392   33,313
Noncommerical | Construction and land development          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 860   860   1,391
Noncommerical | Mortgage          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 28,931   28,931   27,252
Noncommerical | Revolving mortgage          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 3,773   3,773   3,675
Noncommerical | Consumer and Other          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 2,828   2,828   995
Accruing          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 127,582   127,582   135,963
Accruing | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 86,227   86,227   91,316
Accruing | PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 41,355   41,355   44,647
Accruing | Commercial          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 98,268   98,268   107,305
Accruing | Commercial | Construction and land development          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 3,500   3,500   2,591
Accruing | Commercial | Mortgage          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 83,059   83,059   92,184
Accruing | Commercial | Other commercial real estate          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 1,898   1,898   2,374
Accruing | Commercial | Commercial and industrial          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 8,689   8,689   9,864
Accruing | Commercial | Lease financing          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 1,122   1,122   258
Accruing | Commercial | Other          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 0   0   34
Accruing | Noncommerical          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 29,314   29,314   28,658
Accruing | Noncommerical | Construction and land development          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 860   860   1,391
Accruing | Noncommerical | Mortgage          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 23,268   23,268   22,597
Accruing | Noncommerical | Revolving mortgage          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 2,412   2,412   3,675
Accruing | Noncommerical | Consumer and Other          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 2,774   2,774   995
Nonaccruing          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 23,995   23,995   15,516
Nonaccruing | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 22,020   22,020   13,291
Nonaccruing | PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 1,975   1,975   2,225
Nonaccruing | Commercial          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 16,917   16,917   10,861
Nonaccruing | Commercial | Construction and land development          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 633   633   446
Nonaccruing | Commercial | Mortgage          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 12,588   12,588   8,937
Nonaccruing | Commercial | Other commercial real estate          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 401   401   449
Nonaccruing | Commercial | Commercial and industrial          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 2,970   2,970   664
Nonaccruing | Commercial | Lease financing          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 325   325   365
Nonaccruing | Commercial | Other          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 0   0   0
Nonaccruing | Noncommerical          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 7,078   7,078   4,655
Nonaccruing | Noncommerical | Construction and land development          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 0   0   0
Nonaccruing | Noncommerical | Mortgage          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 5,663   5,663   4,655
Nonaccruing | Noncommerical | Revolving mortgage          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment 1,361   1,361   0
Nonaccruing | Noncommerical | Consumer and Other          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Recorded Investment $ 54   $ 54   $ 0
Interest only period provided | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 2 3 3 10  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 69 $ 766 $ 1,941 $ 2,986  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 1 1 2  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 494 $ 1,872 $ 708  
Interest only period provided | PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans     0 2  
Financing Receivable, Modifications, Post-Modification Recorded Investment     $ 0 $ 0  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans     0 2  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment     $ 0 $ 44  
Interest only period provided | Commercial | Mortgage | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 2 2 2 6  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 69 $ 720 $ 69 $ 2,600  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 1 0 2  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 494 $ 0 $ 708  
Interest only period provided | Commercial | Mortgage | PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans     0 2  
Financing Receivable, Modifications, Post-Modification Recorded Investment     $ 0 $ 0  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans     0 2  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment     $ 0 $ 44  
Interest only period provided | Commercial | Commercial and industrial | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans     1 1  
Financing Receivable, Modifications, Post-Modification Recorded Investment     $ 1,872 $ 196  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans     1 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment     $ 1,872 $ 0  
Interest only period provided | Commercial | Lease financing | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans     0 2  
Financing Receivable, Modifications, Post-Modification Recorded Investment     $ 0 $ 144  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans     0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment     $ 0 $ 0  
Interest only period provided | Commercial | Other | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 0 1 0 1  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 0 $ 46 $ 0 $ 46  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 0 0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 0 $ 0 $ 0  
Loan term extension | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 2 13 8 27  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 840 $ 2,530 $ 1,597 $ 5,705  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 0 1 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 0 $ 212 $ 0  
Loan term extension | PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 0 1 0 2  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 0 $ 53 $ 0 $ 329  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 1 0 1  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 53 $ 0 $ 53  
Loan term extension | Commercial | Construction and land development | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 0 2 1 2  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 0 $ 191 $ 212 $ 191  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 0 1 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 0 $ 212 $ 0  
Loan term extension | Commercial | Construction and land development | PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans     0 1  
Financing Receivable, Modifications, Post-Modification Recorded Investment     $ 0 $ 276  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans     0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment     $ 0 $ 0  
Loan term extension | Commercial | Mortgage | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 2 0 5 5  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 840 $ 0 $ 1,371 $ 2,584  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 0 0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 0 $ 0 $ 0  
Loan term extension | Commercial | Commercial and industrial | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 0 4 0 4  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 0 $ 2,069 $ 0 $ 2,069  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 0 0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 0 $ 0 $ 0  
Loan term extension | Commercial | Lease financing | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans     0 2  
Financing Receivable, Modifications, Post-Modification Recorded Investment     $ 0 $ 224  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans     0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment     $ 0 $ 0  
Loan term extension | Noncommerical | Consumer | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 0 1 1 3  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 0 $ 10 $ 5 $ 44  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 0 0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 0 $ 0 $ 0  
Loan term extension | Noncommerical | Mortgage | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 0 6 0 11  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 0 $ 260 $ 0 $ 593  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 0 0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 0 $ 0 $ 0  
Loan term extension | Noncommerical | Mortgage | PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 0 1 0 1  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 0 $ 53 $ 0 $ 53  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 1 0 1  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 53 $ 0 $ 53  
Loan term extension | Noncommerical | Revolving mortgage | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans     1 0  
Financing Receivable, Modifications, Post-Modification Recorded Investment     $ 9 $ 0  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans     0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment     $ 0 $ 0  
Below market interest rate | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 31 14 83 63  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 2,968 $ 2,783 $ 10,026 $ 9,804  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 2 5 5 7  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 157 $ 1,563 $ 698 $ 2,151  
Below market interest rate | PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 1 30 8 37  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 60 $ 5,070 $ 545 $ 8,457  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 1 0 3  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 23 $ 0 $ 62  
Below market interest rate | Commercial | Construction and land development | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 3 0 5 10  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 251 $ 0 $ 296 $ 363  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 0 0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 0 $ 0 $ 0  
Below market interest rate | Commercial | Construction and land development | PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 0 1 0 2  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 0 $ 273 $ 0 $ 308  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 0 0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 0 $ 0 $ 0  
Below market interest rate | Commercial | Mortgage | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 6 3 16 15  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 1,510 $ 1,991 $ 5,226 $ 6,591  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 5 1 6  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 1,563 $ 498 $ 2,011  
Below market interest rate | Commercial | Mortgage | PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 0 5 0 9  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 0 $ 1,811 $ 0 $ 5,060  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 0 0 1  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 0 $ 0 $ 39  
Below market interest rate | Commercial | Other commercial real estate | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 0 1 0 1  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 0 $ 365 $ 0 $ 365  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 0 0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 0 $ 0 $ 0  
Below market interest rate | Commercial | Commercial and industrial | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 4 0 7 6  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 521 $ 0 $ 673 $ 143  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 1 0 1 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 142 $ 0 $ 142 $ 0  
Below market interest rate | Commercial | Commercial and industrial | PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 0 1 0 1  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 0 $ 23 $ 0 $ 23  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 0 0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 0 $ 0 $ 0  
Below market interest rate | Commercial | Other | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans     1 0  
Financing Receivable, Modifications, Post-Modification Recorded Investment     $ 1,732 $ 0  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans     0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment     $ 0 $ 0  
Below market interest rate | Noncommerical | Construction and land development | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans     2 8  
Financing Receivable, Modifications, Post-Modification Recorded Investment     $ 253 $ 1,248  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans     0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment     $ 0 $ 0  
Below market interest rate | Noncommerical | Consumer | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 3 0 7 0  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 40 $ 0 $ 85 $ 0  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 0 0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 0 $ 0 $ 0  
Below market interest rate | Noncommerical | Mortgage | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 15 10 42 18  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 646 $ 427 $ 1,698 $ 820  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 1 0 3 1  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 15 $ 0 $ 58 $ 140  
Below market interest rate | Noncommerical | Mortgage | PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 1 23 8 25  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 60 $ 2,963 $ 545 $ 3,066  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 1 0 2  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 23 $ 0 $ 23  
Below market interest rate | Noncommerical | Revolving mortgage | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans     3 5  
Financing Receivable, Modifications, Post-Modification Recorded Investment     $ 63 $ 274  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans     0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment     $ 0 $ 0  
Discharged from bankruptcy | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 13 5 30 20  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 300 $ 60 $ 1,753 $ 2,162  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 3 0 5 2  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 60 $ 0 $ 158 $ 85  
Discharged from bankruptcy | PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 0 26 1 26  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 0 $ 1,828 $ 78 $ 1,828  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 2 0 2  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 94 $ 0 $ 94  
Discharged from bankruptcy | Commercial | Mortgage | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans     1 1  
Financing Receivable, Modifications, Post-Modification Recorded Investment     $ 622 $ 983  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans     0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment     $ 0 $ 0  
Discharged from bankruptcy | Commercial | Commercial and industrial | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 1 0 1 0  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 17 $ 0 $ 17 $ 0  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 0 0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 0 $ 0 $ 0  
Discharged from bankruptcy | Noncommerical | Construction and land development | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans     0 1  
Financing Receivable, Modifications, Post-Modification Recorded Investment     $ 0 $ 62  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans     0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment     $ 0 $ 0  
Discharged from bankruptcy | Noncommerical | Consumer | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 3 2 4 3  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 45 $ 8 $ 48 $ 26  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 0 0 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 0 $ 0 $ 0  
Discharged from bankruptcy | Noncommerical | Mortgage | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 2 1 8 8  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 35 $ 13 $ 434 $ 649  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 0 0 2  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 0 $ 0 $ 85  
Discharged from bankruptcy | Noncommerical | Mortgage | PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 0 26 1 26  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 0 $ 1,828 $ 78 $ 1,828  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 0 2 0 2  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 0 $ 94 $ 0 $ 94  
Discharged from bankruptcy | Noncommerical | Revolving mortgage | Non-PCI Loans          
Financing Receivable, Modifications [Line Items]          
Financing Receivable, Modifications, Number of Contracts | loans 7 2 16 7  
Financing Receivable, Modifications, Post-Modification Recorded Investment $ 203 $ 39 $ 632 $ 442  
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans 3 0 5 0  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment $ 60 $ 0 $ 158 $ 0