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Allowance for Credit Losses (Troubled Debt Restructuring) (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | $ 212,975 | $ 208,180
Accruing |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 152,017 | 157,364
Nonaccruing |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 60,958 | 50,816
Non-PCD Loans | Commercial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 104,881 | 101,739
Non-PCD Loans | Commercial | Construction and land development |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 379 | 632
Non-PCD Loans | Commercial | Owner occupied commercial mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 56,916 | 48,463
Non-PCD Loans | Commercial | Non-owner occupied commercial mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 23,785 | 19,985
Non-PCD Loans | Commercial | Commercial and industrial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 23,801 | 32,659
Non-PCD Loans | Consumer |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 66,522 | 81,478
Non-PCD Loans | Consumer | Construction and land development |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 2,662 | 1,582
Non-PCD Loans | Consumer | Consumer auto |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 2,524 | 2,714
Non-PCD Loans | Consumer | Mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 37,043 | 48,838
Non-PCD Loans | Consumer | Revolving mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 23,458 | 27,252
Non-PCD Loans | Consumer | Consumer and Other |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 835 | 1,092
Non-PCD Loans | Accruing | Commercial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 79,129 | 85,619
Non-PCD Loans | Accruing | Commercial | Construction and land development |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 346 | 578
Non-PCD Loans | Accruing | Commercial | Owner occupied commercial mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 46,255 | 37,574
Non-PCD Loans | Accruing | Commercial | Non-owner occupied commercial mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 20,022 | 18,336
Non-PCD Loans | Accruing | Commercial | Commercial and industrial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 12,506 | 29,131
Non-PCD Loans | Accruing | Consumer |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 43,681 | 54,128
Non-PCD Loans | Accruing | Consumer | Construction and land development |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 2,380 | 1,573
Non-PCD Loans | Accruing | Consumer | Consumer auto |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 1,888 | 2,018
Non-PCD Loans | Accruing | Consumer | Mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 22,106 | 29,458
Non-PCD Loans | Accruing | Consumer | Revolving mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 16,533 | 20,124
Non-PCD Loans | Accruing | Consumer | Consumer and Other |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 774 | 955
Non-PCD Loans | Nonaccruing | Commercial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 25,752 | 16,120
Non-PCD Loans | Nonaccruing | Commercial | Construction and land development |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 33 | 54
Non-PCD Loans | Nonaccruing | Commercial | Owner occupied commercial mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 10,661 | 10,889
Non-PCD Loans | Nonaccruing | Commercial | Non-owner occupied commercial mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 3,763 | 1,649
Non-PCD Loans | Nonaccruing | Commercial | Commercial and industrial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 11,295 | 3,528
Non-PCD Loans | Nonaccruing | Consumer |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 22,841 | 27,350
Non-PCD Loans | Nonaccruing | Consumer | Construction and land development |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 282 | 9
Non-PCD Loans | Nonaccruing | Consumer | Consumer auto |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 636 | 696
Non-PCD Loans | Nonaccruing | Consumer | Mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 14,937 | 19,380
Non-PCD Loans | Nonaccruing | Consumer | Revolving mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 6,925 | 7,128
Non-PCD Loans | Nonaccruing | Consumer | Consumer and Other |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 61 | 137
PCD Loans |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 41,572 | 24,963
PCD Loans | Accruing |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | 29,207 | 17,617
PCD Loans | Nonaccruing |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructuring | $ 12,365 | $ 7,346

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