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Loans, Allowance for Credit Losses, and Asset Quality Information - Narrative (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 USD ($) loan | Dec. 31, 2023 USD ($) loan
Loans and Leases Receivable Disclosure [Line Items] |  |
Unamortized discount on acquired loans | $ 15,100 | $ 24,000
Loans | $ 8,094,676 | $ 8,150,102
Number of loans to debtors with nonperforming loans | loan | 2 | 1
Nonperforming loans, commitment to lend | $ 400 | $ 200
Interest income on nonaccrual loans | 0 | 0
Net book balance of individually evaluated loans on nonaccrual, threshold amount for designation as collateral dependent loans | 500 |
Total Loans Receivable | 8,093,488 | $ 8,150,280
Hurricane |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Total loans | 743,984 |
Allowance for loan and lease losses, period increase | $ 13,000 |
Financing receivable, allowance for credit loss to outstanding, percent | 1.51% |
Hurricane | Portions Of Western North And South Carolina |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing receivable, allowance for credit loss to outstanding, percent | 3.00% | 1.25%
Allowance for loan and lease losses, period increase, Percent | 0.0016 |
Special Mention Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Total Loans Receivable | $ 37,100 | $ 44,100
Classified |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Total Loans Receivable | $ 65,800 | 54,200
Real Estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Threshold percentage to write-off nonaccrual loans | 90.00% |
Real Estate | Receivable Benchmark | Collateral Type Concentration Risk |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Percentage | 88.00% |
Residential 1-4 family real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Presold mortgages in process of settlement | $ 1,200 | 1,000
Management |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | $ 62,900 | 63,700
Number of new loans to related parties | loan | 1 |
New loans to related parties | $ 1,200 |
Repayments received from related parties | (2,000) |
Management | Unused lines of Credit |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing receivable, excluding accrued interest, available credit | 1,000 | 2,700
Asset Pledged as Collateral without Right |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans | 6,700,000 | 6,500,000
SBA Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Unamortized discount on acquired loans | $ 2,900 | $ 3,500

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