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Loans and Allowance for Credit Losses - Schedule of Activity in Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Balance at Beginning of Period | $ 401,932 | $ 319,713 | $ 392,522 | $ 307,610
Charge-offs | (29,954) | (17,041) | (54,494) | (31,061)
Recoveries | 3,426 | 2,996 | 6,350 | 5,266
Provision for Loan Losses | 99,263 | 36,745 | 130,289 | 60,598
Balance at End of Period | 565,109 | 366,335 | 565,109 | 366,335
Allowance Established for Acquired PCD Loans |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance Established for Acquired PCD Loans | 90,442 | 23,922 | 90,442 | 23,922
Commercial |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Balance at Beginning of Period | 157,587 | 123,437 | 148,722 | 118,333
Charge-offs | (16,805) | (9,927) | (26,116) | (13,586)
Recoveries | 973 | 462 | 2,253 | 796
Provision for Loan Losses | 43,670 | 9,895 | 60,566 | 18,324
Balance at End of Period | 215,917 | 138,460 | 215,917 | 138,460
Commercial | Allowance Established for Acquired PCD Loans |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance Established for Acquired PCD Loans | 30,492 | 14,593 | 30,492 | 14,593
Commercial real estate |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Balance at Beginning of Period | 198,110 | 160,640 | 200,309 | 155,099
Charge-offs | (9,438) | (3,101) | (21,098) | (9,742)
Recoveries | 123 | 542 | 393 | 1,577
Provision for Loan Losses | 45,897 | 23,347 | 55,088 | 34,494
Balance at End of Period | 294,303 | 189,911 | 294,303 | 189,911
Commercial real estate | Allowance Established for Acquired PCD Loans |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance Established for Acquired PCD Loans | 59,611 | 8,483 | 59,611 | 8,483
BBCC |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Balance at Beginning of Period | 2,695 | 3,163 | 2,813 | 2,887
Charge-offs | (53) | (935) | (57) | (1,011)
Recoveries | 99 | 230 | 399 | 248
Provision for Loan Losses | (253) | 439 | (667) | 773
Balance at End of Period | 2,488 | 2,897 | 2,488 | 2,897
BBCC | Allowance Established for Acquired PCD Loans |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance Established for Acquired PCD Loans | 0 | 0 | 0 | 0
Residential real estate |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Balance at Beginning of Period | 24,214 | 21,899 | 22,922 | 20,837
Charge-offs | (247) | 0 | (277) | 0
Recoveries | 150 | 762 | 238 | 781
Provision for Loan Losses | 7,585 | 340 | 8,819 | 1,383
Balance at End of Period | 31,850 | 23,135 | 31,850 | 23,135
Residential real estate | Allowance Established for Acquired PCD Loans |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance Established for Acquired PCD Loans | 148 | 134 | 148 | 134
Indirect |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Balance at Beginning of Period | 9,063 | 1,218 | 8,434 | 1,236
Charge-offs | (1,766) | (1,084) | (3,700) | (2,222)
Recoveries | 905 | 335 | 1,344 | 667
Provision for Loan Losses | 222 | 764 | 2,346 | 1,552
Balance at End of Period | 8,430 | 1,233 | 8,430 | 1,233
Indirect | Allowance Established for Acquired PCD Loans |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance Established for Acquired PCD Loans | 6 | 0 | 6 | 0
Direct |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Balance at Beginning of Period | 2,053 | 2,952 | 2,304 | 3,169
Charge-offs | (1,480) | (1,884) | (3,081) | (4,312)
Recoveries | 701 | 565 | 1,213 | 1,052
Provision for Loan Losses | 1,243 | 1,439 | 2,081 | 3,163
Balance at End of Period | 2,564 | 3,131 | 2,564 | 3,131
Direct | Allowance Established for Acquired PCD Loans |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance Established for Acquired PCD Loans | 47 | 59 | 47 | 59
Home equity |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Balance at Beginning of Period | 8,210 | 6,404 | 7,018 | 6,049
Charge-offs | (165) | (110) | (165) | (188)
Recoveries | 475 | 100 | 510 | 145
Provision for Loan Losses | 899 | 521 | 2,056 | 909
Balance at End of Period | 9,557 | 7,568 | 9,557 | 7,568
Home equity | Allowance Established for Acquired PCD Loans |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance Established for Acquired PCD Loans | $ 138 | $ 653 | $ 138 | $ 653

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