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Loans and Allowance for Credit Losses - Schedule of Risk Rating and Payment Performance (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | $ 29,553,648 | $ 13,601,846
Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 29,553,648 | 13,601,846
Commercial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 8,923,983 | 3,391,769
Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 1,122,264 | 944,296
Originated one year before current year | 2,043,379 | 589,907
Originated two years before current year | 1,052,656 | 289,294
Originated three years before current year | 963,185 | 112,326
Originated four years before current year | 471,735 | 171,251
Originated more than five years before current fiscal year | 509,940 | 244,517
Revolving | 2,413,756 | 689,957
Revolving to Term | 155,072 | 158,664
Total loans | 8,731,987 | 3,200,212
Commercial real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 11,796,503 | 6,380,674
Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 1,648,243 | 1,596,481
Originated one year before current year | 2,905,734 | 1,514,176
Originated two years before current year | 2,291,098 | 898,738
Originated three years before current year | 1,572,618 | 492,535
Originated four years before current year | 993,117 | 516,592
Originated more than five years before current fiscal year | 1,582,063 | 666,606
Revolving | 166,127 | 45,215
Revolving to Term | 482,734 | 491,141
Total loans | 11,641,734 | 6,221,484
BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 45,331 | 83,314
Originated one year before current year | 75,178 | 71,056
Originated two years before current year | 61,225 | 55,784
Originated three years before current year | 46,756 | 36,019
Originated four years before current year | 28,750 | 25,366
Originated more than five years before current fiscal year | 20,491 | 9,133
Revolving | 47,436 | 48,344
Revolving to Term | 21,598 | 21,731
Total loans | 346,765 | 350,747
Residential real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 1,316,193 | 625,678
Originated one year before current year | 1,383,341 | 632,870
Originated two years before current year | 1,895,725 | 272,766
Originated three years before current year | 508,225 | 73,116
Originated four years before current year | 148,717 | 104,721
Originated more than five years before current fiscal year | 815,897 | 546,021
Revolving | 10,863 | 12
Revolving to Term | 96 | 105
Total loans | 6,079,057 | 2,255,289
Residential real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 6,079,057 | 2,255,289
Residential real estate | Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 1,316,193 | 625,582
Originated one year before current year | 1,383,143 | 632,705
Originated two years before current year | 1,895,059 | 272,600
Originated three years before current year | 507,638 | 72,766
Originated four years before current year | 147,478 | 103,866
Originated more than five years before current fiscal year | 786,725 | 529,293
Revolving | 10,863 | 12
Revolving to Term | 96 | 105
Total loans | 6,047,195 | 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 | 198 | 165
Originated two years before current year | 666 | 166
Originated three years before current year | 587 | 350
Originated four years before current year | 1,239 | 855
Originated more than five years before current fiscal year | 29,172 | 16,728
Revolving | 0 | 0
Revolving to Term | 0 | 0
Total loans | 31,862 | 18,360
Indirect |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 305,567 | 361,747
Originated one year before current year | 302,939 | 231,680
Originated two years before current year | 181,331 | 147,592
Originated three years before current year | 109,565 | 69,023
Originated four years before current year | 46,728 | 42,028
Originated more than five years before current fiscal year | 35,610 | 21,060
Revolving | 0 | 0
Revolving to Term | 1 | 9
Total loans | 981,741 | 873,139
Indirect | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 981,741 | 873,139
Indirect | Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 305,501 | 361,485
Originated one year before current year | 302,525 | 231,156
Originated two years before current year | 180,812 | 146,978
Originated three years before current year | 109,194 | 68,513
Originated four years before current year | 46,379 | 41,598
Originated more than five years before current fiscal year | 35,067 | 20,819
Revolving | 0 | 0
Revolving to Term | 1 | 9
Total loans | 979,479 | 870,558
Indirect | Nonperforming |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 66 | 262
Originated one year before current year | 414 | 524
Originated two years before current year | 519 | 614
Originated three years before current year | 371 | 510
Originated four years before current year | 349 | 430
Originated more than five years before current fiscal year | 543 | 241
Revolving | 0 | 0
Revolving to Term | 0 | 0
Total loans | 2,262 | 2,581
Direct |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 91,697 | 34,071
Originated one year before current year | 188,510 | 16,188
Originated two years before current year | 100,647 | 14,526
Originated three years before current year | 78,488 | 14,712
Originated four years before current year | 58,500 | 7,467
Originated more than five years before current fiscal year | 52,422 | 16,367
Revolving | 104,082 | 36,854
Revolving to Term | 166 | 200
Total loans | 674,512 | 140,385
Direct | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 674,512 | 140,385
Direct | Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 91,675 | 34,058
Originated one year before current year | 188,063 | 16,135
Originated two years before current year | 100,504 | 14,396
Originated three years before current year | 78,199 | 14,579
Originated four years before current year | 58,343 | 7,432
Originated more than five years before current fiscal year | 50,906 | 15,831
Revolving | 103,998 | 36,812
Revolving to Term | 38 | 192
Total loans | 671,726 | 139,435
Direct | Nonperforming |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 22 | 13
Originated one year before current year | 447 | 53
Originated two years before current year | 143 | 130
Originated three years before current year | 289 | 133
Originated four years before current year | 157 | 35
Originated more than five years before current fiscal year | 1,516 | 536
Revolving | 84 | 42
Revolving to Term | 128 | 8
Total loans | 2,786 | 950
Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 11,875 | 0
Originated one year before current year | 11,855 | 0
Originated two years before current year | 8,171 | 649
Originated three years before current year | 14,534 | 358
Originated four years before current year | 13,669 | 576
Originated more than five years before current fiscal year | 44,455 | 1
Revolving | 975,628 | 539,315
Revolving to Term | 17,665 | 19,691
Total loans | 1,097,852 | 560,590
Home equity | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 1,097,852 | 560,590
Home equity | Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 11,875 | 0
Originated one year before current year | 11,855 | 0
Originated two years before current year | 8,137 | 633
Originated three years before current year | 14,518 | 349
Originated four years before current year | 13,076 | 535
Originated more than five years before current fiscal year | 36,231 | 0
Revolving | 975,416 | 539,057
Revolving to Term | 14,702 | 16,768
Total loans | 1,085,810 | 557,342
Home equity | Nonperforming |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 0 | 0
Originated one year before current year | 0 | 0
Originated two years before current year | 34 | 16
Originated three years before current year | 16 | 9
Originated four years before current year | 593 | 41
Originated more than five years before current fiscal year | 8,224 | 1
Revolving | 212 | 258
Revolving to Term | 2,963 | 2,923
Total loans | 12,042 | 3,248
Pass | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 1,085,570 | 918,456
Originated one year before current year | 1,982,733 | 563,869
Originated two years before current year | 1,016,391 | 271,158
Originated three years before current year | 888,392 | 98,468
Originated four years before current year | 426,282 | 156,136
Originated more than five years before current fiscal year | 467,789 | 235,639
Revolving | 2,313,545 | 667,628
Revolving to Term | 132,149 | 130,470
Total loans | 8,312,851 | 3,041,824
Pass | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 1,552,841 | 1,555,880
Originated one year before current year | 2,787,599 | 1,474,271
Originated two years before current year | 2,234,315 | 846,921
Originated three years before current year | 1,472,777 | 481,508
Originated four years before current year | 867,430 | 462,176
Originated more than five years before current fiscal year | 1,446,189 | 611,680
Revolving | 163,533 | 42,609
Revolving to Term | 443,935 | 451,544
Total loans | 10,968,619 | 5,926,589
Pass | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 44,590 | 81,710
Originated one year before current year | 73,821 | 69,749
Originated two years before current year | 60,244 | 54,580
Originated three years before current year | 45,049 | 34,461
Originated four years before current year | 28,071 | 25,113
Originated more than five years before current fiscal year | 20,216 | 8,296
Revolving | 46,062 | 47,571
Revolving to Term | 19,013 | 18,778
Total loans | 337,066 | 340,258
Criticized | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 5,285 | 9,998
Originated one year before current year | 23,442 | 7,885
Originated two years before current year | 17,524 | 6,660
Originated three years before current year | 28,488 | 0
Originated four years before current year | 15,752 | 7,809
Originated more than five years before current fiscal year | 10,798 | 2,658
Revolving | 48,442 | 14,601
Revolving to Term | 1,352 | 10,076
Total loans | 151,083 | 59,687
Criticized | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 43,201 | 27,622
Originated one year before current year | 31,765 | 24,790
Originated two years before current year | 18,257 | 39,914
Originated three years before current year | 51,824 | 0
Originated four years before current year | 66,566 | 21,614
Originated more than five years before current fiscal year | 50,919 | 22,157
Revolving | 0 | 0
Revolving to Term | 33,801 | 34,387
Total loans | 296,333 | 170,484
Criticized | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 669 | 1,320
Originated one year before current year | 1,083 | 1,170
Originated two years before current year | 667 | 841
Originated three years before current year | 744 | 160
Originated four years before current year | 270 | 0
Originated more than five years before current fiscal year | 0 | 0
Revolving | 451 | 670
Revolving to Term | 1,535 | 1,578
Total loans | 5,419 | 5,739
Substandard | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 31,062 | 14,773
Originated one year before current year | 33,265 | 14,468
Originated two years before current year | 16,647 | 10,200
Originated three years before current year | 44,642 | 9,849
Originated four years before current year | 25,021 | 5,521
Originated more than five years before current fiscal year | 15,349 | 945
Revolving | 41,626 | 6,883
Revolving to Term | 18,092 | 10,322
Total loans | 225,704 | 72,961
Substandard | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 51,283 | 4,706
Originated one year before current year | 36,711 | 12,118
Originated two years before current year | 22,940 | 9,933
Originated three years before current year | 47,348 | 9,058
Originated four years before current year | 55,284 | 18,165
Originated more than five years before current fiscal year | 35,047 | 11,351
Revolving | 2,291 | 2,291
Revolving to Term | 4,212 | 4,339
Total loans | 255,116 | 71,961
Substandard | BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 72 | 284
Originated one year before current year | 274 | 24
Originated two years before current year | 13 | 79
Originated three years before current year | 576 | 7
Originated four years before current year | 0 | 187
Originated more than five years before current fiscal year | 152 | 465
Revolving | 923 | 103
Revolving to Term | 313 | 239
Total loans | 2,323 | 1,388
Nonaccrual | Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 347 | 1,069
Originated one year before current year | 3,640 | 3,507
Originated two years before current year | 1,164 | 1,276
Originated three years before current year | 1,071 | 3,721
Originated four years before current year | 1 | 1,448
Originated more than five years before current fiscal year | 0 | 0
Revolving | 2,402 | 845
Revolving to Term | 3,479 | 7,796
Total loans | 12,104 | 19,662
Nonaccrual | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Originated in current fiscal year | 918 | 1,620
Originated one year before current year | 12,535 | 2,997
Originated two years before current year | 3,545 | 0
Originated three years before current year | 0 | 1,627
Originated four years before current year | 2,666 | 3,419
Originated more than five years before current fiscal year | 7,285 | 8,905
Revolving | 303 | 315
Revolving to Term | 786 | 871
Total loans | 28,038 | 19,754
Nonaccrual | 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 | 0 | 88
Originated two years before current year | 276 | 0
Originated three years before current year | 0 | 0
Originated four years before current year | 45 | 66
Originated more than five years before current fiscal year | 0 | 162
Revolving | 0 | 0
Revolving to Term | 737 | 1,136
Total loans | 1,058 | 1,452
Doubtful | Commercial | 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 | 299 | 178
Originated two years before current year | 930 | 0
Originated three years before current year | 592 | 288
Originated four years before current year | 4,679 | 337
Originated more than five years before current fiscal year | 16,004 | 5,275
Revolving | 7,741 | 0
Revolving to Term | 0 | 0
Total loans | 30,245 | 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 | 37,124 | 0
Originated two years before current year | 12,041 | 1,970
Originated three years before current year | 669 | 342
Originated four years before current year | 1,171 | 11,218
Originated more than five years before current fiscal year | 42,623 | 12,513
Revolving | 0 | 0
Revolving to Term | 0 | 0
Total loans | 93,628 | 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 | 0 | 25
Originated two years before current year | 25 | 284
Originated three years before current year | 387 | 1,391
Originated four years before current year | 364 | 0
Originated more than five years before current fiscal year | 123 | 210
Revolving | 0 | 0
Revolving to Term | 0 | 0
Total loans | $ 899 | $ 1,910

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