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Loans and Allowance for Credit Losses - Schedule of Risk Rating and Payment Performance (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | $ 30,528,933 | $ 13,601,846
Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 30,528,933 | 13,601,846
Commercial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 9,311,148 | 3,391,769
Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 1,875,354 | 944,296
Originated one year before current year | 2,025,879 | 589,907
Originated two years before current year | 995,210 | 289,294
Originated three years before current year | 925,112 | 112,326
Originated four years before current year | 411,547 | 171,251
Originated more than five years before current fiscal year | 481,783 | 244,517
Revolving | 2,083,367 | 689,957
Revolving to Term | 315,727 | 158,664
Total loans | 9,113,979 | 3,200,212
Commercial real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 12,227,888 | 6,380,674
Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 2,493,631 | 1,596,481
Originated one year before current year | 2,966,864 | 1,514,176
Originated two years before current year | 2,204,825 | 898,738
Originated three years before current year | 1,462,847 | 492,535
Originated four years before current year | 931,827 | 516,592
Originated more than five years before current fiscal year | 1,333,979 | 666,606
Revolving | 54,845 | 45,215
Revolving to Term | 625,286 | 491,141
Total loans | 12,074,104 | 6,221,484
BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 64,756 | 83,314
Originated one year before current year | 71,340 | 71,056
Originated two years before current year | 57,416 | 55,784
Originated three years before current year | 42,054 | 36,019
Originated four years before current year | 27,055 | 25,366
Originated more than five years before current fiscal year | 15,495 | 9,133
Revolving | 51,958 | 48,344
Revolving to Term | 20,879 | 21,731
Total loans | 350,953 | 350,747
Residential real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 1,070,939 | 625,678
Originated one year before current year | 1,920,431 | 632,870
Originated two years before current year | 1,862,658 | 272,766
Originated three years before current year | 496,646 | 73,116
Originated four years before current year | 145,117 | 104,721
Originated more than five years before current fiscal year | 771,415 | 546,021
Revolving | 8 | 12
Revolving to Term | 92 | 105
Total loans | 6,267,306 | 2,255,289
Residential real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 6,267,306 | 2,255,289
Residential real estate | Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 1,070,939 | 625,582
Originated one year before current year | 1,920,008 | 632,705
Originated two years before current year | 1,861,893 | 272,600
Originated three years before current year | 496,062 | 72,766
Originated four years before current year | 144,400 | 103,866
Originated more than five years before current fiscal year | 742,078 | 529,293
Revolving | 8 | 12
Revolving to Term | 92 | 105
Total loans | 6,235,480 | 2,236,929
Residential real estate | Nonperforming |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 0 | 96
Originated one year before current year | 423 | 165
Originated two years before current year | 765 | 166
Originated three years before current year | 584 | 350
Originated four years before current year | 717 | 855
Originated more than five years before current fiscal year | 29,337 | 16,728
Revolving | 0 | 0
Revolving to Term | 0 | 0
Total loans | 31,826 | 18,360
Indirect |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 404,257 | 361,747
Originated one year before current year | 275,010 | 231,680
Originated two years before current year | 162,769 | 147,592
Originated three years before current year | 95,974 | 69,023
Originated four years before current year | 39,562 | 42,028
Originated more than five years before current fiscal year | 26,437 | 21,060
Revolving | 0 | 0
Revolving to Term | 45 | 9
Total loans | 1,004,054 | 873,139
Indirect | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 1,004,054 | 873,139
Indirect | Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 404,054 | 361,485
Originated one year before current year | 274,254 | 231,156
Originated two years before current year | 162,221 | 146,978
Originated three years before current year | 95,443 | 68,513
Originated four years before current year | 39,202 | 41,598
Originated more than five years before current fiscal year | 25,995 | 20,819
Revolving | 0 | 0
Revolving to Term | 45 | 9
Total loans | 1,001,214 | 870,558
Indirect | Nonperforming |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 203 | 262
Originated one year before current year | 756 | 524
Originated two years before current year | 548 | 614
Originated three years before current year | 531 | 510
Originated four years before current year | 360 | 430
Originated more than five years before current fiscal year | 442 | 241
Revolving | 0 | 0
Revolving to Term | 0 | 0
Total loans | 2,840 | 2,581
Direct |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 121,121 | 34,071
Originated one year before current year | 186,086 | 16,188
Originated two years before current year | 87,449 | 14,526
Originated three years before current year | 67,866 | 14,712
Originated four years before current year | 52,972 | 7,467
Originated more than five years before current fiscal year | 68,072 | 16,367
Revolving | 89,715 | 36,854
Revolving to Term | 1,662 | 200
Total loans | 674,943 | 140,385
Direct | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 674,943 | 140,385
Direct | Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 120,960 | 34,058
Originated one year before current year | 185,466 | 16,135
Originated two years before current year | 86,802 | 14,396
Originated three years before current year | 67,478 | 14,579
Originated four years before current year | 52,671 | 7,432
Originated more than five years before current fiscal year | 65,437 | 15,831
Revolving | 89,675 | 36,812
Revolving to Term | 1,530 | 192
Total loans | 670,019 | 139,435
Direct | Nonperforming |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 161 | 13
Originated one year before current year | 620 | 53
Originated two years before current year | 647 | 130
Originated three years before current year | 388 | 133
Originated four years before current year | 301 | 35
Originated more than five years before current fiscal year | 2,635 | 536
Revolving | 40 | 42
Revolving to Term | 132 | 8
Total loans | 4,924 | 950
Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 965 | 0
Originated one year before current year | 1,088 | 0
Originated two years before current year | 2,094 | 649
Originated three years before current year | 2,763 | 358
Originated four years before current year | 1,832 | 576
Originated more than five years before current fiscal year | 15,506 | 1
Revolving | 1,000,737 | 539,315
Revolving to Term | 18,609 | 19,691
Total loans | 1,043,594 | 560,590
Home equity | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 1,043,594 | 560,590
Home equity | Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 741 | 0
Originated one year before current year | 992 | 0
Originated two years before current year | 1,863 | 633
Originated three years before current year | 2,035 | 349
Originated four years before current year | 1,008 | 535
Originated more than five years before current fiscal year | 11,171 | 0
Revolving | 999,869 | 539,057
Revolving to Term | 15,370 | 16,768
Total loans | 1,033,049 | 557,342
Home equity | Nonperforming |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 224 | 0
Originated one year before current year | 96 | 0
Originated two years before current year | 231 | 16
Originated three years before current year | 728 | 9
Originated four years before current year | 824 | 41
Originated more than five years before current fiscal year | 4,335 | 1
Revolving | 868 | 258
Revolving to Term | 3,239 | 2,923
Total loans | 10,545 | 3,248
Pass | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 1,788,480 | 918,456
Originated one year before current year | 1,953,811 | 563,869
Originated two years before current year | 928,908 | 271,158
Originated three years before current year | 858,442 | 98,468
Originated four years before current year | 386,870 | 156,136
Originated more than five years before current fiscal year | 444,404 | 235,639
Revolving | 1,981,798 | 667,628
Revolving to Term | 277,119 | 130,470
Total loans | 8,619,832 | 3,041,824
Pass | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 2,375,092 | 1,555,880
Originated one year before current year | 2,864,028 | 1,474,271
Originated two years before current year | 2,141,691 | 846,921
Originated three years before current year | 1,322,839 | 481,508
Originated four years before current year | 803,056 | 462,176
Originated more than five years before current fiscal year | 1,209,592 | 611,680
Revolving | 54,548 | 42,609
Revolving to Term | 597,665 | 451,544
Total loans | 11,368,511 | 5,926,589
Pass | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 63,023 | 81,710
Originated one year before current year | 70,355 | 69,749
Originated two years before current year | 56,446 | 54,580
Originated three years before current year | 40,627 | 34,461
Originated four years before current year | 26,382 | 25,113
Originated more than five years before current fiscal year | 14,995 | 8,296
Revolving | 50,146 | 47,571
Revolving to Term | 18,477 | 18,778
Total loans | 340,451 | 340,258
Criticized | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 42,688 | 9,998
Originated one year before current year | 27,736 | 7,885
Originated two years before current year | 41,026 | 6,660
Originated three years before current year | 44,508 | 0
Originated four years before current year | 10,165 | 7,809
Originated more than five years before current fiscal year | 6,293 | 2,658
Revolving | 61,764 | 14,601
Revolving to Term | 4,397 | 10,076
Total loans | 238,577 | 59,687
Criticized | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 61,754 | 27,622
Originated one year before current year | 28,671 | 24,790
Originated two years before current year | 21,462 | 39,914
Originated three years before current year | 60,599 | 0
Originated four years before current year | 68,301 | 21,614
Originated more than five years before current fiscal year | 44,349 | 22,157
Revolving | 0 | 0
Revolving to Term | 20,431 | 34,387
Total loans | 305,567 | 170,484
Criticized | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 1,330 | 1,320
Originated one year before current year | 633 | 1,170
Originated two years before current year | 611 | 841
Originated three years before current year | 697 | 160
Originated four years before current year | 263 | 0
Originated more than five years before current fiscal year | 164 | 0
Revolving | 975 | 670
Revolving to Term | 1,177 | 1,578
Total loans | 5,850 | 5,739
Substandard | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 40,035 | 14,773
Originated one year before current year | 35,516 | 14,468
Originated two years before current year | 20,640 | 10,200
Originated three years before current year | 13,877 | 9,849
Originated four years before current year | 8,661 | 5,521
Originated more than five years before current fiscal year | 21,806 | 945
Revolving | 31,913 | 6,883
Revolving to Term | 26,566 | 10,322
Total loans | 199,014 | 72,961
Substandard | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 54,427 | 4,706
Originated one year before current year | 24,635 | 12,118
Originated two years before current year | 26,280 | 9,933
Originated three years before current year | 78,029 | 9,058
Originated four years before current year | 56,499 | 18,165
Originated more than five years before current fiscal year | 31,336 | 11,351
Revolving | 0 | 2,291
Revolving to Term | 4,153 | 4,339
Total loans | 275,359 | 71,961
Substandard | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 342 | 284
Originated one year before current year | 324 | 24
Originated two years before current year | 3 | 79
Originated three years before current year | 343 | 7
Originated four years before current year | 0 | 187
Originated more than five years before current fiscal year | 0 | 465
Revolving | 837 | 103
Revolving to Term | 502 | 239
Total loans | 2,351 | 1,388
Nonaccrual | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 0 | 1,069
Originated one year before current year | 2,158 | 3,507
Originated two years before current year | 1,356 | 1,276
Originated three years before current year | 1,127 | 3,721
Originated four years before current year | 0 | 1,448
Originated more than five years before current fiscal year | 0 | 0
Revolving | 7,892 | 845
Revolving to Term | 7,645 | 7,796
Total loans | 20,178 | 19,662
Nonaccrual | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 2,358 | 1,620
Originated one year before current year | 13,949 | 2,997
Originated two years before current year | 5,640 | 0
Originated three years before current year | 1,162 | 1,627
Originated four years before current year | 2,188 | 3,419
Originated more than five years before current fiscal year | 26,480 | 8,905
Revolving | 297 | 315
Revolving to Term | 3,037 | 871
Total loans | 55,111 | 19,754
Nonaccrual | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 61 | 0
Originated one year before current year | 0 | 88
Originated two years before current year | 340 | 0
Originated three years before current year | 294 | 0
Originated four years before current year | 283 | 66
Originated more than five years before current fiscal year | 336 | 162
Revolving | 0 | 0
Revolving to Term | 723 | 1,136
Total loans | 2,037 | 1,452
Doubtful | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 4,151 | 0
Originated one year before current year | 6,658 | 178
Originated two years before current year | 3,280 | 0
Originated three years before current year | 7,158 | 288
Originated four years before current year | 5,851 | 337
Originated more than five years before current fiscal year | 9,280 | 5,275
Revolving | 0 | 0
Revolving to Term | 0 | 0
Total loans | 36,378 | 6,078
Doubtful | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 0 | 6,653
Originated one year before current year | 35,581 | 0
Originated two years before current year | 9,752 | 1,970
Originated three years before current year | 218 | 342
Originated four years before current year | 1,783 | 11,218
Originated more than five years before current fiscal year | 22,222 | 12,513
Revolving | 0 | 0
Revolving to Term | 0 | 0
Total loans | 69,556 | 32,696
Doubtful | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 0 | 0
Originated one year before current year | 28 | 25
Originated two years before current year | 16 | 284
Originated three years before current year | 93 | 1,391
Originated four years before current year | 127 | 0
Originated more than five years before current fiscal year | 0 | 210
Revolving | 0 | 0
Revolving to Term | 0 | 0
Total loans | $ 264 | $ 1,910

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