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Allowance for Credit Losses (Troubled Debt Restructuring) (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | $ 197,969 | $ 208,180
Nonaccruing | 187,464 | 191,483
Accruing |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 139,304 | 157,364
Nonaccruing |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Nonaccruing | 58,665 | 50,816
Non-PCD Loans | Commercial | Construction and land development |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 446 | 632
Non-PCD Loans | Commercial | Owner occupied commercial mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 49,313 | 48,463
Non-PCD Loans | Commercial | Non-owner occupied commercial mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 23,838 | 19,985
Non-PCD Loans | Commercial | Commercial and industrial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 21,330 | 32,659
Non-PCD Loans | Commercial | Total commercial loans |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 94,927 | 101,739
Non-PCD Loans | Consumer |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 69,988 | 81,478
Non-PCD Loans | Consumer | Construction and land development |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 2,771 | 1,582
Non-PCD Loans | Consumer | Consumer auto |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 2,787 | 2,714
Non-PCD Loans | Consumer | Mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 38,299 | 48,838
Non-PCD Loans | Consumer | Revolving mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 25,234 | 27,252
Non-PCD Loans | Consumer | Consumer and Other |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 897 | 1,092
Non-PCD Loans | Accruing | Commercial | Construction and land development |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 408 | 578
Non-PCD Loans | Accruing | Commercial | Owner occupied commercial mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 37,216 | 37,574
Non-PCD Loans | Accruing | Commercial | Non-owner occupied commercial mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 20,364 | 18,336
Non-PCD Loans | Accruing | Commercial | Commercial and industrial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 12,761 | 29,131
Non-PCD Loans | Accruing | Commercial | Total commercial loans |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 70,749 | 85,619
Non-PCD Loans | Accruing | Consumer |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 44,574 | 54,128
Non-PCD Loans | Accruing | Consumer | Construction and land development |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 2,482 | 1,573
Non-PCD Loans | Accruing | Consumer | Consumer auto |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 2,134 | 2,018
Non-PCD Loans | Accruing | Consumer | Mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 21,079 | 29,458
Non-PCD Loans | Accruing | Consumer | Revolving mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 18,038 | 20,124
Non-PCD Loans | Accruing | Consumer | Consumer and Other |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 841 | 955
Non-PCD Loans | Nonaccruing | Commercial | Construction and land development |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Nonaccruing | 38 | 54
Non-PCD Loans | Nonaccruing | Commercial | Owner occupied commercial mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Nonaccruing | 12,097 | 10,889
Non-PCD Loans | Nonaccruing | Commercial | Non-owner occupied commercial mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Nonaccruing | 3,474 | 1,649
Non-PCD Loans | Nonaccruing | Commercial | Commercial and industrial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Nonaccruing | 8,569 | 3,528
Non-PCD Loans | Nonaccruing | Commercial | Total commercial loans |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Nonaccruing | 24,178 | 16,120
Non-PCD Loans | Nonaccruing | Consumer |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Nonaccruing | 25,414 | 27,350
Non-PCD Loans | Nonaccruing | Consumer | Construction and land development |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Nonaccruing | 289 | 9
Non-PCD Loans | Nonaccruing | Consumer | Consumer auto |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Nonaccruing | 653 | 696
Non-PCD Loans | Nonaccruing | Consumer | Mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Nonaccruing | 17,220 | 19,380
Non-PCD Loans | Nonaccruing | Consumer | Revolving mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Nonaccruing | 7,196 | 7,128
Non-PCD Loans | Nonaccruing | Consumer | Consumer and Other |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Nonaccruing | 56 | 137
PCD Loans |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 33,054 | 24,963
PCD Loans | Accruing |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 23,981 | 17,617
PCD Loans | Nonaccruing |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Nonaccruing | $ 9,073 | $ 7,346

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