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Loans and Allowance for Credit Losses - Schedule of Past Due Loans (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Total loans | $ 29,553,648 | $ 13,601,846
Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 29,553,648 | 13,601,846
Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 8,923,983 | 3,391,769
Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 8,731,987 | 3,200,212
Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 11,796,503 | 6,380,674
Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 11,641,734 | 6,221,484
BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 346,765 | 350,747
Residential real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 6,079,057 | 2,255,289
Residential real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 6,079,057 | 2,255,289
Indirect |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 981,741 | 873,139
Indirect | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 981,741 | 873,139
Direct |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 674,512 | 140,385
Direct | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 674,512 | 140,385
Home equity |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 1,097,852 | 560,590
Home equity | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 1,097,852 | 560,590
Total Past Due | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 169,628 | 37,862
Total Past Due | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 18,798 | 4,943
Total Past Due | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 70,367 | 8,724
Total Past Due | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 666 | 1,018
Total Past Due | Residential real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 54,817 | 15,191
Total Past Due | Indirect | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 5,175 | 5,309
Total Past Due | Direct | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 9,509 | 1,008
Total Past Due | Home equity | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 10,296 | 1,669
30-59 Days Past Due | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 63,282 | 18,413
30-59 Days Past Due | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 3,364 | 2,723
30-59 Days Past Due | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 7,061 | 1,402
30-59 Days Past Due | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 129 | 747
30-59 Days Past Due | Residential real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 37,902 | 8,273
30-59 Days Past Due | Indirect | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 4,140 | 3,888
30-59 Days Past Due | Direct | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 6,496 | 687
30-59 Days Past Due | Home equity | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 4,190 | 693
60-89 Days Past Due | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 10,580 | 4,648
60-89 Days Past Due | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 117 | 617
60-89 Days Past Due | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 3,320 | 280
60-89 Days Past Due | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 167 | 162
60-89 Days Past Due | Residential real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 4,304 | 2,364
60-89 Days Past Due | Indirect | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 673 | 867
60-89 Days Past Due | Direct | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 969 | 159
60-89 Days Past Due | Home equity | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 1,030 | 199
Past Due 90 Days or More | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 95,766 | 14,801
Past Due 90 Days or More | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 15,317 | 1,603
Past Due 90 Days or More | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 59,986 | 7,042
Past Due 90 Days or More | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 370 | 109
Past Due 90 Days or More | Residential real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 12,611 | 4,554
Past Due 90 Days or More | Indirect | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 362 | 554
Past Due 90 Days or More | Direct | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 2,044 | 162
Past Due 90 Days or More | Home equity | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 5,076 | 777
Current | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 29,384,020 | 13,563,984
Current | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 8,713,189 | 3,195,269
Current | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 11,571,367 | 6,212,760
Current | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 346,099 | 349,729
Current | Residential real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 6,024,240 | 2,240,098
Current | Indirect | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 976,566 | 867,830
Current | Direct | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 665,003 | 139,377
Current | Home equity | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | $ 1,087,556 | $ 558,921

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