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Loans and Allowance for Credit Losses - Summary of Amortized Cost Balance of Each of Loan Classes Disaggregated by Collateral Type and Origination Year (Detail) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | $ 2,862,677 | $ 5,779,727
Amortized Cost Basis by Origination Year 2021 | 5,159,926 | 3,516,428
Amortized Cost Basis by Origination Year 2020 | 2,925,003 | 1,605,604
Amortized Cost Basis by Origination Year 2019 | 1,280,145 | 633,731
Amortized Cost Basis by Origination Year 2018 | 476,588 | 435,695
Amortized Cost Basis by Origination Year Prior to 2018 | 874,954 | 705,980
Amortized Cost - Revolving Loans | 5,375,789 | 4,489,817
Amortized Cost - Revolving Loans Converted to Term Loans | 17,076 | 3,889
Total Loans | 18,972,158 | 17,170,871
Commercial and Industrial Portfolio [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 1,292,997 | 2,412,187
Amortized Cost Basis by Origination Year 2021 | 1,805,024 | 951,267
Amortized Cost Basis by Origination Year 2020 | 755,072 | 359,656
Amortized Cost Basis by Origination Year 2019 | 301,437 | 151,532
Amortized Cost Basis by Origination Year 2018 | 117,197 | 115,915
Amortized Cost Basis by Origination Year Prior to 2018 | 110,804 | 133,043
Amortized Cost - Revolving Loans | 3,913,462 | 3,134,273
Amortized Cost - Revolving Loans Converted to Term Loans | 12,861 | 247
Total Loans | 8,308,854 | 7,258,120
Commercial and Industrial Portfolio [Member] | Equipment/Accounts Receivable/Inventory [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 1,280,093 | 2,400,110
Amortized Cost Basis by Origination Year 2021 | 1,799,055 | 945,383
Amortized Cost Basis by Origination Year 2020 | 750,442 | 356,348
Amortized Cost Basis by Origination Year 2019 | 298,949 | 150,892
Amortized Cost Basis by Origination Year 2018 | 116,516 | 115,571
Amortized Cost Basis by Origination Year Prior to 2018 | 109,993 | 131,900
Amortized Cost - Revolving Loans | 3,732,718 | 2,984,740
Amortized Cost - Revolving Loans Converted to Term Loans | 12,175 | 247
Total Loans | 8,099,941 | 7,085,191
Commercial and Industrial Portfolio [Member] | Agriculture [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 12,904 | 12,077
Amortized Cost Basis by Origination Year 2021 | 5,969 | 5,884
Amortized Cost Basis by Origination Year 2020 | 4,630 | 3,308
Amortized Cost Basis by Origination Year 2019 | 2,488 | 640
Amortized Cost Basis by Origination Year 2018 | 681 | 344
Amortized Cost Basis by Origination Year Prior to 2018 | 811 | 1,143
Amortized Cost - Revolving Loans | 142,508 | 130,946
Amortized Cost - Revolving Loans Converted to Term Loans | 686 |
Total Loans | 170,677 | 154,342
Commercial and Industrial Portfolio [Member] | Overdrafts [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost - Revolving Loans | 38,236 | 18,587
Total Loans | 38,236 | 18,587
Specialty Lending Portfolio [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 13,279 | 34,552
Amortized Cost Basis by Origination Year 2021 | 45,178 | 49,373
Amortized Cost Basis by Origination Year 2020 | 43,403 |
Amortized Cost - Revolving Loans | 443,977 | 438,437
Total Loans | 545,837 | 522,362
Specialty Lending Portfolio [Member] | Asset-based Lending [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 13,279 | 34,552
Amortized Cost Basis by Origination Year 2021 | 45,178 | 49,373
Amortized Cost Basis by Origination Year 2020 | 43,403 |
Amortized Cost - Revolving Loans | 443,977 | 331,282
Total Loans | 545,837 | 415,207
Specialty Lending Portfolio [Member] | Factoring [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost - Revolving Loans |  | 107,155
Total Loans |  | 107,155
Commercial Real Estate Portfolio Segment |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 1,103,928 | 2,350,910
Amortized Cost Basis by Origination Year 2021 | 2,389,519 | 1,742,749
Amortized Cost Basis by Origination Year 2020 | 1,428,501 | 975,704
Amortized Cost Basis by Origination Year 2019 | 755,317 | 396,747
Amortized Cost Basis by Origination Year 2018 | 286,251 | 247,282
Amortized Cost Basis by Origination Year Prior to 2018 | 602,958 | 459,957
Amortized Cost - Revolving Loans | 158,401 | 93,196
Amortized Cost - Revolving Loans Converted to Term Loans | 958 | 999
Total Loans | 6,725,833 | 6,267,544
Commercial Real Estate Portfolio Segment | Owner-occupied [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 446,181 | 680,135
Amortized Cost Basis by Origination Year 2021 | 615,430 | 519,448
Amortized Cost Basis by Origination Year 2020 | 425,538 | 226,631
Amortized Cost Basis by Origination Year 2019 | 191,426 | 177,576
Amortized Cost Basis by Origination Year 2018 | 149,627 | 91,539
Amortized Cost Basis by Origination Year Prior to 2018 | 218,128 | 159,482
Amortized Cost - Revolving Loans | 92,485 | 11,727
Total Loans | 2,138,815 | 1,866,538
Commercial Real Estate Portfolio Segment | Non-owner-occupied [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 367,756 | 1,058,025
Amortized Cost Basis by Origination Year 2021 | 999,661 | 689,167
Amortized Cost Basis by Origination Year 2020 | 585,175 | 591,886
Amortized Cost Basis by Origination Year 2019 | 474,868 | 162,491
Amortized Cost Basis by Origination Year 2018 | 117,895 | 135,100
Amortized Cost Basis by Origination Year Prior to 2018 | 334,057 | 258,541
Amortized Cost - Revolving Loans | 11,455 | 10,969
Total Loans | 2,890,867 | 2,906,179
Commercial Real Estate Portfolio Segment | Farmland [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 65,266 | 61,505
Amortized Cost Basis by Origination Year 2021 | 63,609 | 273,624
Amortized Cost Basis by Origination Year 2020 | 234,913 | 34,145
Amortized Cost Basis by Origination Year 2019 | 25,453 | 16,969
Amortized Cost Basis by Origination Year 2018 | 17,015 | 19,929
Amortized Cost Basis by Origination Year Prior to 2018 | 43,179 | 34,858
Amortized Cost - Revolving Loans | 34,641 | 38,239
Amortized Cost - Revolving Loans Converted to Term Loans | 56 | 999
Total Loans | 484,132 | 480,268
Commercial Real Estate Portfolio Segment | 5+ Multi-family [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 30,139 | 58,268
Amortized Cost Basis by Origination Year 2021 | 52,827 | 95,024
Amortized Cost Basis by Origination Year 2020 | 71,699 | 41,426
Amortized Cost Basis by Origination Year 2019 | 19,219 | 1,206
Amortized Cost Basis by Origination Year 2018 | 1,674 | 511
Amortized Cost Basis by Origination Year Prior to 2018 | 7,166 | 6,820
Amortized Cost - Revolving Loans | 3,779 | 2,057
Total Loans | 186,503 | 205,312
Commercial Real Estate Portfolio Segment | 1-4 Family Construction [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 27,681 | 53,004
Amortized Cost Basis by Origination Year 2021 | 41,091 | 4,933
Amortized Cost Basis by Origination Year 2020 |  | 17,333
Amortized Cost Basis by Origination Year 2019 | 160 |
Amortized Cost - Revolving Loans | 2,743 | 985
Amortized Cost - Revolving Loans Converted to Term Loans | 902 |
Total Loans | 72,577 | 76,255
Commercial Real Estate Portfolio Segment | General Construction [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 166,905 | 439,973
Amortized Cost Basis by Origination Year 2021 | 616,901 | 160,553
Amortized Cost Basis by Origination Year 2020 | 111,176 | 64,283
Amortized Cost Basis by Origination Year 2019 | 44,191 | 38,505
Amortized Cost Basis by Origination Year 2018 | 40 | 203
Amortized Cost Basis by Origination Year Prior to 2018 | 428 | 256
Amortized Cost - Revolving Loans | 13,298 | 29,219
Total Loans | 952,939 | 732,992
Consumer Real Estate Portfolio [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 387,571 | 839,875
Amortized Cost Basis by Origination Year 2021 | 786,521 | 719,110
Amortized Cost Basis by Origination Year 2020 | 648,142 | 203,855
Amortized Cost Basis by Origination Year 2019 | 185,770 | 60,458
Amortized Cost Basis by Origination Year 2018 | 52,833 | 63,107
Amortized Cost Basis by Origination Year Prior to 2018 | 156,157 | 110,659
Amortized Cost - Revolving Loans | 309,802 | 320,446
Amortized Cost - Revolving Loans Converted to Term Loans | 2,096 | 2,523
Total Loans | 2,528,892 | 2,320,033
Consumer Real Estate Portfolio [Member] | HELOC [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 181 | 248
Amortized Cost Basis by Origination Year 2021 |  | 547
Amortized Cost Basis by Origination Year 2020 | 657 | 327
Amortized Cost Basis by Origination Year 2019 | 296 | 574
Amortized Cost Basis by Origination Year 2018 | 556 | 646
Amortized Cost Basis by Origination Year Prior to 2018 | 6,292 | 6,363
Amortized Cost - Revolving Loans | 309,724 | 320,410
Amortized Cost - Revolving Loans Converted to Term Loans | 2,096 | 2,523
Total Loans | 319,802 | 331,638
Consumer Real Estate Portfolio [Member] | First Lien: 1-4 Family [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 382,504 | 830,513
Amortized Cost Basis by Origination Year 2021 | 777,416 | 712,264
Amortized Cost Basis by Origination Year 2020 | 642,288 | 200,167
Amortized Cost Basis by Origination Year 2019 | 182,611 | 58,734
Amortized Cost Basis by Origination Year 2018 | 51,162 | 61,641
Amortized Cost Basis by Origination Year Prior to 2018 | 148,059 | 102,997
Amortized Cost - Revolving Loans | 16 | 19
Total Loans | 2,184,056 | 1,966,335
Consumer Real Estate Portfolio [Member] | Junior Lien: 1-4 Family [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 4,886 | 9,114
Amortized Cost Basis by Origination Year 2021 | 9,105 | 6,299
Amortized Cost Basis by Origination Year 2020 | 5,197 | 3,361
Amortized Cost Basis by Origination Year 2019 | 2,863 | 1,150
Amortized Cost Basis by Origination Year 2018 | 1,115 | 820
Amortized Cost Basis by Origination Year Prior to 2018 | 1,806 | 1,299
Amortized Cost - Revolving Loans | 62 | 17
Total Loans | 25,034 | 22,060
Consumer Portfolio [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 19,063 | 42,251
Amortized Cost Basis by Origination Year 2021 | 37,491 | 9,816
Amortized Cost Basis by Origination Year 2020 | 7,329 | 7,411
Amortized Cost Basis by Origination Year 2019 | 5,367 | 2,650
Amortized Cost Basis by Origination Year 2018 | 1,901 | 3,021
Amortized Cost Basis by Origination Year Prior to 2018 | 2,612 | 928
Amortized Cost - Revolving Loans | 97,667 | 62,938
Amortized Cost - Revolving Loans Converted to Term Loans | 1,161 | 120
Total Loans | 172,591 | 129,135
Consumer Portfolio [Member] | Revolving Line [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 1,381 | 974
Amortized Cost Basis by Origination Year 2021 | 906 |
Amortized Cost - Revolving Loans | 57,100 | 60,049
Amortized Cost - Revolving Loans Converted to Term Loans | 1,161 | 120
Total Loans | 60,548 | 61,143
Consumer Portfolio [Member] | Auto [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 5,395 | 9,886
Amortized Cost Basis by Origination Year 2021 | 8,247 | 7,775
Amortized Cost Basis by Origination Year 2020 | 5,883 | 5,462
Amortized Cost Basis by Origination Year 2019 | 3,891 | 1,107
Amortized Cost Basis by Origination Year 2018 | 616 | 479
Amortized Cost Basis by Origination Year Prior to 2018 | 348 | 220
Total Loans | 24,380 | 24,929
Consumer Portfolio [Member] | Other [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 12,287 | 31,391
Amortized Cost Basis by Origination Year 2021 | 28,338 | 2,041
Amortized Cost Basis by Origination Year 2020 | 1,446 | 1,949
Amortized Cost Basis by Origination Year 2019 | 1,476 | 1,543
Amortized Cost Basis by Origination Year 2018 | 1,285 | 2,542
Amortized Cost Basis by Origination Year Prior to 2018 | 2,264 | 708
Amortized Cost - Revolving Loans | 40,567 | 2,889
Total Loans | 87,663 | 43,063
Credit Cards Portfolio [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost - Revolving Loans | 397,292 | 391,389
Total Loans | 397,292 | 391,389
Credit Cards Portfolio [Member] | Consumer [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost - Revolving Loans | 178,456 | 180,296
Total Loans | 178,456 | 180,296
Credit Cards Portfolio [Member] | Commercial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost - Revolving Loans | 218,836 | 211,093
Total Loans | 218,836 | 211,093
Leases and Other Portfolio [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 45,839 | 99,952
Amortized Cost Basis by Origination Year 2021 | 96,193 | 44,113
Amortized Cost Basis by Origination Year 2020 | 42,556 | 58,978
Amortized Cost Basis by Origination Year 2019 | 32,254 | 22,344
Amortized Cost Basis by Origination Year 2018 | 18,406 | 6,370
Amortized Cost Basis by Origination Year Prior to 2018 | 2,423 | 1,393
Amortized Cost - Revolving Loans | 55,188 | 49,138
Total Loans | 292,859 | 282,288
Leases and Other Portfolio [Member] | Leases [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2020 |  | 814
Amortized Cost Basis by Origination Year 2019 | 814 |
Amortized Cost Basis by Origination Year 2018 |  | 739
Amortized Cost Basis by Origination Year Prior to 2018 | 1,306 | 614
Total Loans | 2,120 | 2,167
Leases and Other Portfolio [Member] | Other [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortized Cost Basis by Origination Year 2022 | 45,839 | 99,952
Amortized Cost Basis by Origination Year 2021 | 96,193 | 44,113
Amortized Cost Basis by Origination Year 2020 | 42,556 | 58,164
Amortized Cost Basis by Origination Year 2019 | 31,440 | 22,344
Amortized Cost Basis by Origination Year 2018 | 18,406 | 5,631
Amortized Cost Basis by Origination Year Prior to 2018 | 1,117 | 779
Amortized Cost - Revolving Loans | 55,188 | 49,138
Total Loans | $ 290,739 | $ 280,121

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