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Loans and Allowance for Credit Losses - Schedule of Past Due Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Total loans | $ 30,528,933 | $ 13,601,846
Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 30,528,933 | 13,601,846
Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 9,311,148 | 3,391,769
Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 9,113,979 | 3,200,212
Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 12,227,888 | 6,380,674
Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 12,074,104 | 6,221,484
BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 350,953 | 350,747
Residential real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 6,267,306 | 2,255,289
Residential real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 6,267,306 | 2,255,289
Indirect |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 1,004,054 | 873,139
Indirect | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 1,004,054 | 873,139
Direct |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 674,943 | 140,385
Direct | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 674,943 | 140,385
Home equity |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 1,043,594 | 560,590
Home equity | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 1,043,594 | 560,590
Total Past Due | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 153,470 | 37,862
Total Past Due | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 21,218 | 4,943
Total Past Due | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 58,307 | 8,724
Total Past Due | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 254 | 1,018
Total Past Due | Residential real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 45,627 | 15,191
Total Past Due | Indirect | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 7,514 | 5,309
Total Past Due | Direct | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 9,888 | 1,008
Total Past Due | Home equity | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 10,662 | 1,669
30-59 Days Past Due | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 76,216 | 18,413
30-59 Days Past Due | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 8,575 | 2,723
30-59 Days Past Due | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 23,786 | 1,402
30-59 Days Past Due | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 78 | 747
30-59 Days Past Due | Residential real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 29,394 | 8,273
30-59 Days Past Due | Indirect | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 4,929 | 3,888
30-59 Days Past Due | Direct | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 4,459 | 687
30-59 Days Past Due | Home equity | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 4,995 | 693
60-89 Days Past Due | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 21,206 | 4,648
60-89 Days Past Due | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 758 | 617
60-89 Days Past Due | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 7,235 | 280
60-89 Days Past Due | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 92 | 162
60-89 Days Past Due | Residential real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 7,382 | 2,364
60-89 Days Past Due | Indirect | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 1,735 | 867
60-89 Days Past Due | Direct | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 2,926 | 159
60-89 Days Past Due | Home equity | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 1,078 | 199
Past Due 90 Days or More | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 56,048 | 14,801
Past Due 90 Days or More | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 11,885 | 1,603
Past Due 90 Days or More | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 27,286 | 7,042
Past Due 90 Days or More | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 84 | 109
Past Due 90 Days or More | Residential real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 8,851 | 4,554
Past Due 90 Days or More | Indirect | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 850 | 554
Past Due 90 Days or More | Direct | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 2,503 | 162
Past Due 90 Days or More | Home equity | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 4,589 | 777
Current | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 30,375,463 | 13,563,984
Current | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 9,092,761 | 3,195,269
Current | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 12,015,797 | 6,212,760
Current | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 350,699 | 349,729
Current | Residential real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 6,221,679 | 2,240,098
Current | Indirect | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 996,540 | 867,830
Current | Direct | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 665,055 | 139,377
Current | Home equity | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | $ 1,032,932 | $ 558,921

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