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Loans and Allowance for Credit Losses - Schedule of the Risk Category of Loans by Class of Loans (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | $ 2,937,900 |  | $ 2,367,170
Originated, four years before current fiscal year | 495,364 |  | 614,362
Originated, three years before current fiscal year | 1,215,951 |  | 525,985
Originated, two years before current fiscal year | 1,471,860 |  | 1,185,099
Originated, fiscal year before current fiscal year | 723,714 |  | 1,391,290
Originated, current fiscal year | 59,319 |  | 750,863
Revolving Loans Amort. Cost Basis | 1,048,700 |  | 1,103,437
Revolving Loans Convert. to Term | 29,894 |  | 30,489
Loans | 7,982,702 |  | 7,968,695
Financial Asset, Write Offs [Abstract] |  |  |
Prior | (21,468) |  | (12,888)
Originated, four years before current fiscal year | 0 |  | (5,500)
Originated, three years before current fiscal year | 0 |  | 0
Originated, two years before current fiscal year | 0 |  | 0
Originated, fiscal year before current fiscal year | 0 |  | 0
Originated, current fiscal year | 0 |  | 0
Revolving Loans Amort. Cost Basis | (100) |  | 0
Revolving Loans Convert. to Term | (1) |  | (1,135)
YTD Gross Charge-offs | (21,569) | $ (1,054) | (19,523)
Commercial |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 216,019 |  | 172,775
Originated, four years before current fiscal year | 44,822 |  | 48,582
Originated, three years before current fiscal year | 175,641 |  | 49,470
Originated, two years before current fiscal year | 141,462 |  | 196,064
Originated, fiscal year before current fiscal year | 187,057 |  | 149,542
Originated, current fiscal year | 24,604 |  | 191,889
Revolving Loans Amort. Cost Basis | 609,950 |  | 659,613
Revolving Loans Convert. to Term | 9,212 |  | 5,831
Loans | 1,408,767 |  | 1,473,766
Financial Asset, Write Offs [Abstract] |  |  |
Prior | (396) |  | (885)
Originated, four years before current fiscal year | 0 |  | 0
Originated, three years before current fiscal year | 0 |  | 0
Originated, two years before current fiscal year | 0 |  | 0
Originated, fiscal year before current fiscal year | 0 |  | 0
Originated, current fiscal year | 0 |  | 0
Revolving Loans Amort. Cost Basis | (100) |  | 0
Revolving Loans Convert. to Term | 0 |  | (1,135)
YTD Gross Charge-offs | (496) | (868) | (2,020)
Commercial | Pass |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 193,755 |  | 157,563
Originated, four years before current fiscal year | 35,451 |  | 48,524
Originated, three years before current fiscal year | 174,103 |  | 39,133
Originated, two years before current fiscal year | 141,181 |  | 194,555
Originated, fiscal year before current fiscal year | 187,057 |  | 149,320
Originated, current fiscal year | 24,604 |  | 191,889
Revolving Loans Amort. Cost Basis | 569,226 |  | 623,684
Revolving Loans Convert. to Term | 1,154 |  | 5,207
Loans | 1,326,531 |  | 1,409,875
Commercial | Special Mention |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 8,493 |  | 1,415
Originated, four years before current fiscal year | 0 |  | 0
Originated, three years before current fiscal year | 0 |  | 0
Originated, two years before current fiscal year | 0 |  | 0
Originated, fiscal year before current fiscal year | 0 |  | 0
Originated, current fiscal year | 0 |  | 0
Revolving Loans Amort. Cost Basis | 4,286 |  | 2,259
Revolving Loans Convert. to Term | 8,058 |  | 0
Loans | 20,837 |  | 3,674
Commercial | Substandard |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 13,771 |  | 13,797
Originated, four years before current fiscal year | 9,371 |  | 58
Originated, three years before current fiscal year | 1,538 |  | 10,337
Originated, two years before current fiscal year | 281 |  | 1,509
Originated, fiscal year before current fiscal year | 0 |  | 222
Originated, current fiscal year | 0 |  | 0
Revolving Loans Amort. Cost Basis | 36,438 |  | 33,670
Revolving Loans Convert. to Term | 0 |  | 624
Loans | 61,399 |  | 60,217
PPP loans |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Loans | 467 |  | 528
PPP loans | Pass |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 0 |  | 0
Originated, four years before current fiscal year | 0 |  | 0
Originated, three years before current fiscal year | 467 |  | 0
Originated, two years before current fiscal year | 0 |  | 528
Originated, fiscal year before current fiscal year | 0 |  | 0
Originated, current fiscal year | 0 |  | 0
Revolving Loans Amort. Cost Basis | 0 |  | 0
Revolving Loans Convert. to Term | 0 |  | 0
Loans | 467 |  | 528
Income-producing - commercial real estate |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 1,822,342 |  | 1,482,483
Originated, four years before current fiscal year | 315,317 |  | 434,112
Originated, three years before current fiscal year | 559,404 |  | 335,483
Originated, two years before current fiscal year | 755,375 |  | 517,957
Originated, fiscal year before current fiscal year | 299,264 |  | 732,291
Originated, current fiscal year | 26,251 |  | 327,126
Revolving Loans Amort. Cost Basis | 243,343 |  | 263,317
Revolving Loans Convert. to Term | 19,359 |  | 1,845
Loans | 4,040,655 |  | 4,094,614
Financial Asset, Write Offs [Abstract] |  |  |
Prior | (20,943) |  | (11,817)
Originated, four years before current fiscal year | 0 |  | 0
Originated, three years before current fiscal year | 0 |  | 0
Originated, two years before current fiscal year | 0 |  | 0
Originated, fiscal year before current fiscal year | 0 |  | 0
Originated, current fiscal year | 0 |  | 0
Revolving Loans Amort. Cost Basis | 0 |  | 0
Revolving Loans Convert. to Term | 0 |  | 0
YTD Gross Charge-offs | (20,943) | 0 | (11,817)
Income-producing - commercial real estate | Pass |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 1,452,244 |  | 1,257,937
Originated, four years before current fiscal year | 308,573 |  | 326,999
Originated, three years before current fiscal year | 559,404 |  | 328,743
Originated, two years before current fiscal year | 755,375 |  | 517,957
Originated, fiscal year before current fiscal year | 299,264 |  | 732,291
Originated, current fiscal year | 26,251 |  | 327,126
Revolving Loans Amort. Cost Basis | 243,343 |  | 263,317
Revolving Loans Convert. to Term | 19,359 |  | 1,845
Loans | 3,663,813 |  | 3,756,215
Income-producing - commercial real estate | Special Mention |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 170,118 |  | 84,585
Originated, four years before current fiscal year | 6,744 |  | 44,424
Originated, three years before current fiscal year | 0 |  | 6,740
Originated, two years before current fiscal year | 0 |  | 0
Originated, fiscal year before current fiscal year | 0 |  | 0
Originated, current fiscal year | 0 |  | 0
Revolving Loans Amort. Cost Basis | 0 |  | 0
Revolving Loans Convert. to Term | 0 |  | 0
Loans | 176,862 |  | 135,749
Income-producing - commercial real estate | Substandard |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 199,980 |  | 139,961
Originated, four years before current fiscal year | 0 |  | 62,689
Originated, three years before current fiscal year | 0 |  | 0
Originated, two years before current fiscal year | 0 |  | 0
Originated, fiscal year before current fiscal year | 0 |  | 0
Originated, current fiscal year | 0 |  | 0
Revolving Loans Amort. Cost Basis | 0 |  | 0
Revolving Loans Convert. to Term | 0 |  | 0
Loans | 199,980 |  | 202,650
Owner-occupied - commercial real estate |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 753,971 |  | 625,980
Originated, four years before current fiscal year | 35,968 |  | 116,382
Originated, three years before current fiscal year | 222,361 |  | 36,659
Originated, two years before current fiscal year | 41,514 |  | 202,776
Originated, fiscal year before current fiscal year | 126,663 |  | 41,907
Originated, current fiscal year | 4,590 |  | 125,934
Revolving Loans Amort. Cost Basis | 515 |  | 673
Revolving Loans Convert. to Term | 0 |  | 21,928
Loans | 1,185,582 |  | 1,172,239
Financial Asset, Write Offs [Abstract] |  |  |
YTD Gross Charge-offs | 0 | 0 |
Owner-occupied - commercial real estate | Pass |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 628,063 |  | 534,525
Originated, four years before current fiscal year | 34,703 |  | 103,034
Originated, three years before current fiscal year | 222,361 |  | 35,385
Originated, two years before current fiscal year | 41,514 |  | 202,776
Originated, fiscal year before current fiscal year | 126,663 |  | 41,907
Originated, current fiscal year | 4,590 |  | 125,934
Revolving Loans Amort. Cost Basis | 515 |  | 673
Revolving Loans Convert. to Term | 0 |  | 55
Loans | 1,058,409 |  | 1,044,289
Owner-occupied - commercial real estate | Special Mention |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 61,117 |  | 54,288
Originated, four years before current fiscal year | 0 |  | 13,348
Originated, three years before current fiscal year | 0 |  | 0
Originated, two years before current fiscal year | 0 |  | 0
Originated, fiscal year before current fiscal year | 0 |  | 0
Originated, current fiscal year | 0 |  | 0
Revolving Loans Amort. Cost Basis | 0 |  | 0
Revolving Loans Convert. to Term | 0 |  | 0
Loans | 61,117 |  | 67,636
Owner-occupied - commercial real estate | Substandard |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 64,791 |  | 37,167
Originated, four years before current fiscal year | 1,265 |  | 0
Originated, three years before current fiscal year | 0 |  | 1,274
Originated, two years before current fiscal year | 0 |  | 0
Originated, fiscal year before current fiscal year | 0 |  | 0
Originated, current fiscal year | 0 |  | 0
Revolving Loans Amort. Cost Basis | 0 |  | 0
Revolving Loans Convert. to Term | 0 |  | 21,873
Loans | 66,056 |  | 60,314
Real estate mortgage - residential |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 33,666 |  | 27,047
Originated, four years before current fiscal year | 2,175 |  | 7,545
Originated, three years before current fiscal year | 15,668 |  | 2,186
Originated, two years before current fiscal year | 14,689 |  | 15,967
Originated, fiscal year before current fiscal year | 5,889 |  | 14,756
Originated, current fiscal year | 0 |  | 5,895
Revolving Loans Amort. Cost Basis | 0 |  | 0
Revolving Loans Convert. to Term | 0 |  | 0
Loans | 72,087 |  | 73,396
Financial Asset, Write Offs [Abstract] |  |  |
YTD Gross Charge-offs | 0 | 0 |
Real estate mortgage - residential | Pass |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 29,496 |  | 22,877
Originated, four years before current fiscal year | 2,175 |  | 7,545
Originated, three years before current fiscal year | 15,668 |  | 2,186
Originated, two years before current fiscal year | 14,689 |  | 15,967
Originated, fiscal year before current fiscal year | 5,889 |  | 14,756
Originated, current fiscal year | 0 |  | 5,895
Revolving Loans Amort. Cost Basis | 0 |  | 0
Revolving Loans Convert. to Term | 0 |  | 0
Loans | 67,917 |  | 69,226
Real estate mortgage - residential | Substandard |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 4,170 |  | 4,170
Originated, four years before current fiscal year | 0 |  | 0
Originated, three years before current fiscal year | 0 |  | 0
Originated, two years before current fiscal year | 0 |  | 0
Originated, fiscal year before current fiscal year | 0 |  | 0
Originated, current fiscal year | 0 |  | 0
Revolving Loans Amort. Cost Basis | 0 |  | 0
Revolving Loans Convert. to Term | 0 |  | 0
Loans | 4,170 |  | 4,170
Construction - commercial and residential |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 83,920 |  | 38,743
Originated, four years before current fiscal year | 40,902 |  | 3,440
Originated, three years before current fiscal year | 241,373 |  | 45,739
Originated, two years before current fiscal year | 485,461 |  | 251,038
Originated, fiscal year before current fiscal year | 89,757 |  | 419,393
Originated, current fiscal year | 3,874 |  | 87,400
Revolving Loans Amort. Cost Basis | 136,092 |  | 124,013
Revolving Loans Convert. to Term | 1,177 |  | 0
Loans | 1,082,556 |  | 969,766
Financial Asset, Write Offs [Abstract] |  |  |
Prior | (129) |  | (136)
Originated, four years before current fiscal year | 0 |  | (5,500)
Originated, three years before current fiscal year | 0 |  | 0
Originated, two years before current fiscal year | 0 |  | 0
Originated, fiscal year before current fiscal year | 0 |  | 0
Originated, current fiscal year | 0 |  | 0
Revolving Loans Amort. Cost Basis | 0 |  | 0
Revolving Loans Convert. to Term | 0 |  | 0
YTD Gross Charge-offs | (129) | (136) | (5,636)
Construction - commercial and residential | Pass |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 77,388 |  | 30,619
Originated, four years before current fiscal year | 11,101 |  | 3,440
Originated, three years before current fiscal year | 241,373 |  | 45,739
Originated, two years before current fiscal year | 485,461 |  | 251,038
Originated, fiscal year before current fiscal year | 89,757 |  | 419,393
Originated, current fiscal year | 3,874 |  | 87,400
Revolving Loans Amort. Cost Basis | 136,092 |  | 124,013
Revolving Loans Convert. to Term | 1,177 |  | 0
Loans | 1,046,223 |  | 961,642
Construction - commercial and residential | Special Mention |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 6,532 |  |
Originated, four years before current fiscal year | 0 |  |
Originated, three years before current fiscal year | 0 |  |
Originated, two years before current fiscal year | 0 |  |
Originated, fiscal year before current fiscal year | 0 |  |
Originated, current fiscal year | 0 |  |
Revolving Loans Amort. Cost Basis | 0 |  |
Revolving Loans Convert. to Term | 0 |  |
Loans | 6,532 |  |
Construction - commercial and residential | Substandard |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 0 |  | 8,124
Originated, four years before current fiscal year | 29,801 |  | 0
Originated, three years before current fiscal year | 0 |  | 0
Originated, two years before current fiscal year | 0 |  | 0
Originated, fiscal year before current fiscal year | 0 |  | 0
Originated, current fiscal year | 0 |  | 0
Revolving Loans Amort. Cost Basis | 0 |  | 0
Revolving Loans Convert. to Term | 0 |  | 0
Loans | 29,801 |  | 8,124
Construction - C&I (owner occupied) | Pass |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 26,151 |  | 18,551
Originated, four years before current fiscal year | 56,094 |  | 4,265
Originated, three years before current fiscal year | 615 |  | 56,361
Originated, two years before current fiscal year | 33,242 |  | 618
Originated, fiscal year before current fiscal year | 15,084 |  | 33,237
Originated, current fiscal year | 0 |  | 12,619
Revolving Loans Amort. Cost Basis | 7,193 |  | 6,370
Revolving Loans Convert. to Term | 0 |  | 0
Loans | 138,379 |  | 132,021
Home equity |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 1,829 |  | 1,590
Originated, four years before current fiscal year | 86 |  | 36
Originated, three years before current fiscal year | 422 |  | 87
Originated, two years before current fiscal year | 117 |  | 151
Originated, fiscal year before current fiscal year | 0 |  | 118
Originated, current fiscal year | 0 |  | 0
Revolving Loans Amort. Cost Basis | 50,651 |  | 49,097
Revolving Loans Convert. to Term | 146 |  | 885
Loans | 53,251 |  | 51,964
Financial Asset, Write Offs [Abstract] |  |  |
YTD Gross Charge-offs | 0 | 0 |
Home equity | Pass |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 1,758 |  | 1,590
Originated, four years before current fiscal year | 86 |  | 0
Originated, three years before current fiscal year | 185 |  | 87
Originated, two years before current fiscal year | 117 |  | 151
Originated, fiscal year before current fiscal year | 0 |  | 118
Originated, current fiscal year | 0 |  | 0
Revolving Loans Amort. Cost Basis | 50,589 |  | 49,035
Revolving Loans Convert. to Term | 146 |  | 643
Loans | 52,881 |  | 51,624
Home equity | Substandard |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 71 |  | 0
Originated, four years before current fiscal year | 0 |  | 36
Originated, three years before current fiscal year | 237 |  | 0
Originated, two years before current fiscal year | 0 |  | 0
Originated, fiscal year before current fiscal year | 0 |  | 0
Originated, current fiscal year | 0 |  | 0
Revolving Loans Amort. Cost Basis | 62 |  | 62
Revolving Loans Convert. to Term | 0 |  | 242
Loans | 370 |  | 340
Other consumer |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 2 |  | 1
Originated, four years before current fiscal year | 0 |  | 0
Originated, three years before current fiscal year | 0 |  | 0
Originated, two years before current fiscal year | 0 |  | 0
Originated, fiscal year before current fiscal year | 0 |  | 46
Originated, current fiscal year | 0 |  | 0
Revolving Loans Amort. Cost Basis | 956 |  | 354
Revolving Loans Convert. to Term | 0 |  | 0
Loans | 958 |  | 401
Financial Asset, Write Offs [Abstract] |  |  |
Prior | 0 |  | (50)
Originated, four years before current fiscal year | 0 |  | 0
Originated, three years before current fiscal year | 0 |  | 0
Originated, two years before current fiscal year | 0 |  | 0
Originated, fiscal year before current fiscal year | 0 |  | 0
Originated, current fiscal year | 0 |  | 0
Revolving Loans Amort. Cost Basis | 0 |  | 0
Revolving Loans Convert. to Term | (1) |  | 0
YTD Gross Charge-offs | (1) | $ (50) | (50)
Other consumer | Pass |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Prior | 2 |  | 1
Originated, four years before current fiscal year | 0 |  | 0
Originated, three years before current fiscal year | 0 |  | 0
Originated, two years before current fiscal year | 0 |  | 0
Originated, fiscal year before current fiscal year | 0 |  | 46
Originated, current fiscal year | 0 |  | 0
Revolving Loans Amort. Cost Basis | 956 |  | 354
Revolving Loans Convert. to Term | 0 |  | 0
Loans | $ 958 |  | $ 401

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