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Loans and Allowance for Credit Losses - Schedule of Risk Rating and Payment Performance (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Risk Category Of Loans [Line Items] |  |
Total loans | $ 31,123,641 | $ 13,601,846
Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Total loans | 31,123,641 | 13,601,846
Commercial |  |
Risk Category Of Loans [Line Items] |  |
Total loans | 9,508,904 | 3,391,769
Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 2,473,145 | 944,296
Originated one year before current year | 1,851,604 | 589,907
Originated two years before current year | 880,723 | 289,294
Originated three years before current year | 802,628 | 112,326
Originated four years before current year | 382,993 | 171,251
Originated more than five years before current fiscal year | 423,484 | 244,517
Revolving | 2,118,835 | 689,957
Revolving to Term | 365,212 | 158,664
Total loans | 9,298,624 | 3,200,212
Commercial real estate |  |
Risk Category Of Loans [Line Items] |  |
Total loans | 12,457,070 | 6,380,674
Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 3,193,582 | 1,596,481
Originated one year before current year | 2,928,035 | 1,514,176
Originated two years before current year | 2,050,913 | 898,738
Originated three years before current year | 1,384,735 | 492,535
Originated four years before current year | 823,735 | 516,592
Originated more than five years before current fiscal year | 1,139,730 | 666,606
Revolving | 57,818 | 45,215
Revolving to Term | 720,200 | 491,141
Total loans | 12,298,748 | 6,221,484
BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 92,738 | 83,314
Originated one year before current year | 64,973 | 71,056
Originated two years before current year | 53,229 | 55,784
Originated three years before current year | 38,138 | 36,019
Originated four years before current year | 24,464 | 25,366
Originated more than five years before current fiscal year | 11,690 | 9,133
Revolving | 61,565 | 48,344
Revolving to Term | 21,805 | 21,731
Total loans | 368,602 | 350,747
Residential real estate |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 1,327,227 | 625,678
Originated one year before current year | 1,946,321 | 632,870
Originated two years before current year | 1,826,623 | 272,766
Originated three years before current year | 479,402 | 73,116
Originated four years before current year | 138,086 | 104,721
Originated more than five years before current fiscal year | 742,687 | 546,021
Revolving | 7 | 12
Revolving to Term | 88 | 105
Total loans | 6,460,441 | 2,255,289
Residential real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Total loans | 6,460,441 | 2,255,289
Residential real estate | Performing |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 1,327,168 | 625,582
Originated one year before current year | 1,945,792 | 632,705
Originated two years before current year | 1,825,762 | 272,600
Originated three years before current year | 478,529 | 72,766
Originated four years before current year | 136,260 | 103,866
Originated more than five years before current fiscal year | 712,175 | 529,293
Revolving | 7 | 12
Revolving to Term | 88 | 105
Total loans | 6,425,781 | 2,236,929
Residential real estate | Nonperforming |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 59 | 96
Originated one year before current year | 529 | 165
Originated two years before current year | 861 | 166
Originated three years before current year | 873 | 350
Originated four years before current year | 1,826 | 855
Originated more than five years before current fiscal year | 30,512 | 16,728
Revolving | 0 | 0
Revolving to Term | 0 | 0
Total loans | 34,660 | 18,360
Indirect |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 504,758 | 361,747
Originated one year before current year | 250,481 | 231,680
Originated two years before current year | 144,910 | 147,592
Originated three years before current year | 82,835 | 69,023
Originated four years before current year | 31,788 | 42,028
Originated more than five years before current fiscal year | 19,423 | 21,060
Revolving | 0 | 0
Revolving to Term | 62 | 9
Total loans | 1,034,257 | 873,139
Indirect | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Total loans | 1,034,257 | 873,139
Indirect | Performing |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 504,410 | 361,485
Originated one year before current year | 249,407 | 231,156
Originated two years before current year | 144,265 | 146,978
Originated three years before current year | 82,304 | 68,513
Originated four years before current year | 31,484 | 41,598
Originated more than five years before current fiscal year | 19,095 | 20,819
Revolving | 0 | 0
Revolving to Term | 62 | 9
Total loans | 1,031,027 | 870,558
Indirect | Nonperforming |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 348 | 262
Originated one year before current year | 1,074 | 524
Originated two years before current year | 645 | 614
Originated three years before current year | 531 | 510
Originated four years before current year | 304 | 430
Originated more than five years before current fiscal year | 328 | 241
Revolving | 0 | 0
Revolving to Term | 0 | 0
Total loans | 3,230 | 2,581
Direct |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 133,049 | 34,071
Originated one year before current year | 164,977 | 16,188
Originated two years before current year | 78,020 | 14,526
Originated three years before current year | 58,124 | 14,712
Originated four years before current year | 45,626 | 7,467
Originated more than five years before current fiscal year | 60,738 | 16,367
Revolving | 87,627 | 36,854
Revolving to Term | 1,025 | 200
Total loans | 629,186 | 140,385
Direct | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Total loans | 629,186 | 140,385
Direct | Performing |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 132,934 | 34,058
Originated one year before current year | 164,126 | 16,135
Originated two years before current year | 77,406 | 14,396
Originated three years before current year | 57,919 | 14,579
Originated four years before current year | 45,299 | 7,432
Originated more than five years before current fiscal year | 59,212 | 15,831
Revolving | 87,622 | 36,812
Revolving to Term | 671 | 192
Total loans | 625,189 | 139,435
Direct | Nonperforming |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 115 | 13
Originated one year before current year | 851 | 53
Originated two years before current year | 614 | 130
Originated three years before current year | 205 | 133
Originated four years before current year | 327 | 35
Originated more than five years before current fiscal year | 1,526 | 536
Revolving | 5 | 42
Revolving to Term | 354 | 8
Total loans | 3,997 | 950
Home equity |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 1,085 | 0
Originated one year before current year | 1,056 | 0
Originated two years before current year | 2,015 | 649
Originated three years before current year | 1,943 | 358
Originated four years before current year | 1,777 | 576
Originated more than five years before current fiscal year | 15,954 | 1
Revolving | 991,699 | 539,315
Revolving to Term | 18,254 | 19,691
Total loans | 1,033,783 | 560,590
Home equity | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Total loans | 1,033,783 | 560,590
Home equity | Performing |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 919 | 0
Originated one year before current year | 896 | 0
Originated two years before current year | 1,849 | 633
Originated three years before current year | 1,497 | 349
Originated four years before current year | 983 | 535
Originated more than five years before current fiscal year | 11,646 | 0
Revolving | 990,001 | 539,057
Revolving to Term | 14,792 | 16,768
Total loans | 1,022,583 | 557,342
Home equity | Nonperforming |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 166 | 0
Originated one year before current year | 160 | 0
Originated two years before current year | 166 | 16
Originated three years before current year | 446 | 9
Originated four years before current year | 794 | 41
Originated more than five years before current fiscal year | 4,308 | 1
Revolving | 1,698 | 258
Revolving to Term | 3,462 | 2,923
Total loans | 11,200 | 3,248
Pass | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 2,388,618 | 918,456
Originated one year before current year | 1,754,364 | 563,869
Originated two years before current year | 796,340 | 271,158
Originated three years before current year | 738,208 | 98,468
Originated four years before current year | 362,986 | 156,136
Originated more than five years before current fiscal year | 388,617 | 235,639
Revolving | 1,988,763 | 667,628
Revolving to Term | 329,119 | 130,470
Total loans | 8,747,015 | 3,041,824
Pass | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 3,066,960 | 1,555,880
Originated one year before current year | 2,828,758 | 1,474,271
Originated two years before current year | 1,989,000 | 846,921
Originated three years before current year | 1,219,025 | 481,508
Originated four years before current year | 675,572 | 462,176
Originated more than five years before current fiscal year | 1,018,719 | 611,680
Revolving | 57,818 | 42,609
Revolving to Term | 689,553 | 451,544
Total loans | 11,545,405 | 5,926,589
Pass | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 90,341 | 81,710
Originated one year before current year | 64,161 | 69,749
Originated two years before current year | 52,304 | 54,580
Originated three years before current year | 36,868 | 34,461
Originated four years before current year | 23,618 | 25,113
Originated more than five years before current fiscal year | 11,333 | 8,296
Revolving | 60,016 | 47,571
Revolving to Term | 18,881 | 18,778
Total loans | 357,522 | 340,258
Criticized | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 40,856 | 9,998
Originated one year before current year | 30,661 | 7,885
Originated two years before current year | 63,557 | 6,660
Originated three years before current year | 33,490 | 0
Originated four years before current year | 9,195 | 7,809
Originated more than five years before current fiscal year | 5,312 | 2,658
Revolving | 61,036 | 14,601
Revolving to Term | 4,327 | 10,076
Total loans | 248,434 | 59,687
Criticized | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 75,306 | 27,622
Originated one year before current year | 34,422 | 24,790
Originated two years before current year | 22,569 | 39,914
Originated three years before current year | 82,637 | 0
Originated four years before current year | 86,504 | 21,614
Originated more than five years before current fiscal year | 56,864 | 22,157
Revolving | 0 | 0
Revolving to Term | 23,282 | 34,387
Total loans | 381,584 | 170,484
Criticized | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 1,504 | 1,320
Originated one year before current year | 525 | 1,170
Originated two years before current year | 368 | 841
Originated three years before current year | 692 | 160
Originated four years before current year | 353 | 0
Originated more than five years before current fiscal year | 0 | 0
Revolving | 1,006 | 670
Revolving to Term | 1,603 | 1,578
Total loans | 6,051 | 5,739
Substandard | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 37,223 | 14,773
Originated one year before current year | 47,522 | 14,468
Originated two years before current year | 16,540 | 10,200
Originated three years before current year | 22,925 | 9,849
Originated four years before current year | 4,844 | 5,521
Originated more than five years before current fiscal year | 21,204 | 945
Revolving | 67,402 | 6,883
Revolving to Term | 25,143 | 10,322
Total loans | 242,803 | 72,961
Substandard | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 46,231 | 4,706
Originated one year before current year | 16,928 | 12,118
Originated two years before current year | 24,319 | 9,933
Originated three years before current year | 78,468 | 9,058
Originated four years before current year | 57,824 | 18,165
Originated more than five years before current fiscal year | 21,591 | 11,351
Revolving | 0 | 2,291
Revolving to Term | 4,108 | 4,339
Total loans | 249,469 | 71,961
Substandard | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 811 | 284
Originated one year before current year | 143 | 24
Originated two years before current year | 0 | 79
Originated three years before current year | 421 | 7
Originated four years before current year | 0 | 187
Originated more than five years before current fiscal year | 0 | 465
Revolving | 543 | 103
Revolving to Term | 682 | 239
Total loans | 2,600 | 1,388
Nonaccrual | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 3,627 | 1,069
Originated one year before current year | 1,453 | 3,507
Originated two years before current year | 566 | 1,276
Originated three years before current year | 0 | 3,721
Originated four years before current year | 0 | 1,448
Originated more than five years before current fiscal year | 0 | 0
Revolving | 1,634 | 845
Revolving to Term | 6,623 | 7,796
Total loans | 13,903 | 19,662
Nonaccrual | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 3,151 | 1,620
Originated one year before current year | 9,541 | 2,997
Originated two years before current year | 5,014 | 0
Originated three years before current year | 0 | 1,627
Originated four years before current year | 2,312 | 3,419
Originated more than five years before current fiscal year | 22,155 | 8,905
Revolving | 0 | 315
Revolving to Term | 3,257 | 871
Total loans | 45,430 | 19,754
Nonaccrual | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 42 | 0
Originated one year before current year | 37 | 88
Originated two years before current year | 118 | 0
Originated three years before current year | 0 | 0
Originated four years before current year | 429 | 66
Originated more than five years before current fiscal year | 284 | 162
Revolving | 0 | 0
Revolving to Term | 639 | 1,136
Total loans | 1,549 | 1,452
Doubtful | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 2,821 | 0
Originated one year before current year | 17,604 | 178
Originated two years before current year | 3,720 | 0
Originated three years before current year | 8,005 | 288
Originated four years before current year | 5,968 | 337
Originated more than five years before current fiscal year | 8,351 | 5,275
Revolving | 0 | 0
Revolving to Term | 0 | 0
Total loans | 46,469 | 6,078
Doubtful | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 1,934 | 6,653
Originated one year before current year | 38,386 | 0
Originated two years before current year | 10,011 | 1,970
Originated three years before current year | 4,605 | 342
Originated four years before current year | 1,523 | 11,218
Originated more than five years before current fiscal year | 20,401 | 12,513
Revolving | 0 | 0
Revolving to Term | 0 | 0
Total loans | 76,860 | 32,696
Doubtful | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Risk Category Of Loans [Line Items] |  |
Originated in current fiscal year | 40 | 0
Originated one year before current year | 107 | 25
Originated two years before current year | 439 | 284
Originated three years before current year | 157 | 1,391
Originated four years before current year | 64 | 0
Originated more than five years before current fiscal year | 73 | 210
Revolving | 0 | 0
Revolving to Term | 0 | 0
Total loans | $ 880 | $ 1,910

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