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Loans and Allowance for Credit Losses - Summary of Allocation of Allowance for Loan Loss as well as Activity in Allowance for Loan Loss Attributed to Various Segments in Loan (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
ALLL beginning balance | $ 147,914 | $ 110,762 | $ 116,958 | $ 74,029 |
Provision for credit losses or (recapture) | 71,585 | 27,157 | 212,993 | 123,299 |
Loans receivable allowance including provision losses or (recapture) | 219,499 | 137,919 | 329,951 | 201,180 |
Loans charged-off | (53,305) | (37,879) | (167,506) | (104,345) |
Recoveries of loans previously charged-off | 4,069 | 1,045 | 7,818 | 4,250 |
Net charge-offs | (49,236) | (36,834) | (159,688) | (100,095) |
Ending ALLL Balance | 170,263 | 101,085 | 170,263 | 101,085 |
Gross loans receivable | 3,426,043 |  | 3,426,043 |  | $ 3,033,392
Accounting Standards Update 2016-13 |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
ALLL beginning balance |  |  |  | 3,852 |
Commercial and industrial loans |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
ALLL beginning balance | 12,103 | 9,551 | 8,877 | 4,831 |
Provision for credit losses or (recapture) | 1,804 | 2,771 | 13,183 | 7,247 |
Loans receivable allowance including provision losses or (recapture) | 13,907 | 12,322 | 22,060 | 13,506 |
Loans charged-off | (3,852) | (2,328) | (12,419) | (3,515) |
Recoveries of loans previously charged-off | 390 | 1 | 804 | 4 |
Net charge-offs | (3,462) | (2,327) | (11,615) | (3,511) |
Ending ALLL Balance | 10,445 | 9,995 | 10,445 | 9,995 |
Commercial and industrial loans | Accounting Standards Update 2016-13 |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
ALLL beginning balance |  |  |  | 1,428 |
Construction, land and land development loans |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
ALLL beginning balance | 6,110 | 6,539 | 6,386 | 7,425 |
Provision for credit losses or (recapture) | (2,558) | 132 | (2,834) | 835 |
Loans receivable allowance including provision losses or (recapture) | 3,552 | 6,671 | 3,552 | 6,671 |
Loans charged-off | 0 | 0 | 0 | 0 |
Recoveries of loans previously charged-off | 0 | 0 | 0 | 0 |
Net charge-offs | 0 | 0 | 0 | 0 |
Ending ALLL Balance | 3,552 | 6,671 | 3,552 | 6,671 |
Gross loans receivable |  |  |  |  |
Construction, land and land development loans | Accounting Standards Update 2016-13 |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
ALLL beginning balance |  |  |  | (1,589) |
Real Estate Portfolio Segment | Residential real estate loans |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
ALLL beginning balance | 15,532 | 8,849 | 13,049 | 4,142 |
Provision for credit losses or (recapture) | (1,580) | 3,517 | 2,906 | 8,283 |
Loans receivable allowance including provision losses or (recapture) | 13,952 | 12,366 | 15,955 | 14,048 |
Loans charged-off | (1,290) | (1,476) | (3,297) | (3,158) |
Recoveries of loans previously charged-off | 3 | 2 | 7 | 2 |
Net charge-offs | (1,287) | (1,474) | (3,290) | (3,156) |
Ending ALLL Balance | 12,665 | 10,892 | 12,665 | 10,892 |
Real Estate Portfolio Segment | Residential real estate loans | Accounting Standards Update 2016-13 |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
ALLL beginning balance |  |  |  | 1,623 |
Real Estate Portfolio Segment | Commercial real estate loans |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
ALLL beginning balance | 7,319 | 6,952 | 7,441 | 5,470 |
Provision for credit losses or (recapture) | 1,994 | 456 | 1,872 | 698 |
Loans receivable allowance including provision losses or (recapture) | 9,313 | 7,408 | 9,313 | 7,408 |
Loans charged-off | (223) | 0 | (223) | 0 |
Recoveries of loans previously charged-off | 0 | 0 | 0 | 0 |
Net charge-offs | (223) | 0 | (223) | 0 |
Ending ALLL Balance | 9,090 | 7,408 | 9,090 | 7,408 |
Real Estate Portfolio Segment | Commercial real estate loans | Accounting Standards Update 2016-13 |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
ALLL beginning balance |  |  |  | 1,240 |
Consumer and other loans: |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
ALLL beginning balance | 106,850 | 78,871 | 81,205 | 50,996 |
Provision for credit losses or (recapture) | 71,925 | 20,281 | 197,866 | 106,236 |
Loans receivable allowance including provision losses or (recapture) | 178,775 | 99,152 | 279,071 | 159,547 |
Loans charged-off | (47,940) | (34,075) | (151,567) | (97,672) |
Recoveries of loans previously charged-off | 3,676 | 1,042 | 7,007 | 4,244 |
Net charge-offs | (44,264) | (33,033) | (144,560) | (93,428) |
Ending ALLL Balance | 134,511 | 66,119 | 134,511 | 66,119 |
Consumer and other loans: | Accounting Standards Update 2016-13 |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
ALLL beginning balance |  |  |  | 2,315 |
Unallocated |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
ALLL beginning balance | 0 | 0 | 0 | 1,165 |
Provision for credit losses or (recapture) | 0 | 0 | 0 | 0 |
Loans receivable allowance including provision losses or (recapture) | 0 | 0 | 0 | 0 |
Loans charged-off | 0 | 0 | 0 | 0 |
Recoveries of loans previously charged-off | 0 | 0 | 0 | 0 |
Net charge-offs | 0 | 0 | 0 | 0 |
Ending ALLL Balance | $ 0 | $ 0 | $ 0 | 0 |
Unallocated | Accounting Standards Update 2016-13 |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
ALLL beginning balance |  |  |  | $ (1,165) |

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