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v3.25.3

Allowance for Credit Losses, Credit Quality and Other - Additional Information (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Mar. 31, 2024 USD ($) | Sep. 30, 2025 USD ($) loan | Sep. 30, 2024 USD ($) loan | Dec. 31, 2024 USD ($) loan
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Provision for credit losses on loans | $ 6,700,000 | $ 18,200,000 |  | $ 9,700,000 | $ 31,700,000 |
Recovery of credit losses - unfunded commitments | (1,000,000) | 1,000,000 |  | (1,000,000) | 0 |
Recording (recovery) of provision for unfunded commitments of credit losses |  | 1,000,000.0 | $ (1,000,000) |  |  |
Financing receivable, modified specific reserve | 3,400,000 |  |  | 3,400,000 |  |
Nonaccrual | 81,087,000 |  |  | 81,087,000 |  | $ 93,853,000
Loans Past Due Over 90 Days Still Accruing | 4,125,000 |  |  | 4,125,000 |  | 5,034,000
Nonaccrual loans with specific reserve | 32,000,000.0 |  |  | 32,000,000.0 |  | 28,800,000
Interest income on nonaccrual loans |  |  |  | 0 | 0 |
Amortized cost | 225,900,000 |  |  | 225,900,000 |  | 268,000,000.0
Financing receivable, individually evaluated for credit loss, interest income | 2,800,000 | 1,300,000 |  | 8,400,000 | 3,700,000 |
Amount of loan assessed for impairment on a quarterly basis |  |  |  | 2,000,000.0 |  |
Revolver loans converted to term loans |  |  |  | $ 49,800,000 | $ 45,300,000 |
Number of revolving loans convert to term loans | loan |  |  |  | 186 | 180 |
Number of loans | loan |  |  |  | 7 | 8 |
Loans, ending balance | 4,200,000 | $ 1,100,000 |  | $ 4,200,000 | $ 1,100,000 |
Postmodification balance |  |  |  | 115,554,000 |  | $ 122,675,000
Financing receivable, modifications, underwritten the interest rate basis points |  |  |  |  |  | 0.0012
Loans payable | 109,300,000 |  |  | 109,300,000 |  |
Hurricane Deferred Loans |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Financing receivable, modified specific reserve | 6,000,000 |  |  | 6,000,000 |  | $ 33,400,000
13 Modified Loan Borrowers |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Financial receivable, excluding accrued interest, modified in period, premodification |  |  |  | 4,300,000 | $ 1,200,000 |
Borrowers Experiencing Financial Difficulty |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Financial receivable, excluding accrued interest, modified in period, premodification |  |  |  | $ 112,100,000 |  |
Number of loans | loan |  |  |  | 11 |  |
Loans, ending balance | 95,800,000 |  |  | $ 95,800,000 |  |
Loan balance, nonaccrual | 85,656 |  |  | $ 85,656 |  |
Three Modified Loans |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Number of loans | loan |  |  |  |  |  | 3
Postmodification balance |  |  |  |  |  | $ 91,400,000
Three New Loans Underwritten |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Number of loans | loan |  |  |  |  |  | 3
One Loan Charged-Off |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Number of loans | loan |  |  |  |  |  | 1
Financing receivable, modified ,one of loans charged off |  |  |  |  |  | $ 26,100,000
Modified Loans Collateral Dependent |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Number of loans | loan |  |  |  | 6 |  |
Hurricane |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Provision for credit losses on loans |  |  |  |  |  | 16,700,000
Total Past Due | Borrowers Experiencing Financial Difficulty |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Loans, ending balance | 95,700,000 |  |  | $ 95,700,000 |  |
Residential real estate loans |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Provision for credit losses on loans | 4,903,000 |  |  | 12,106,000 |  |
Commercial and industrial |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Provision for credit losses on loans | 2,632,000 |  |  | 14,549,000 |  |
Nonaccrual | 4,349,000 |  |  | 4,349,000 |  | 10,931,000
Loans Past Due Over 90 Days Still Accruing | $ 1,456,000 |  |  | 1,456,000 |  | 2,263,000
Postmodification balance |  |  |  | $ 59,990,000 |  | $ 69,871,000
Minimum | Construction / Land Development and Other Commercial Real Estate Loans |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Loans collateralized by first liens on real estate amortized period |  |  |  | 15 years |  |
Loans collateralized by first liens on real estate balloon payments due period |  |  |  | 1 year |  |
Minimum | Commercial and industrial |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Commercial loans terms |  |  |  | 1 year |  |
Inventory financing percentage | 50.00% |  |  | 50.00% |  |
Minimum | Commercial and industrial | Loans Past Due 30-59 Days |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Accounts receivable financed percentage | 50.00% |  |  | 50.00% |  |
Maximum | Construction / Land Development and Other Commercial Real Estate Loans |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Loans collateralized by first liens on real estate amortized period |  |  |  | 30 years |  |
Loans collateralized by first liens on real estate balloon payments due period |  |  |  | 5 years |  |
Percentage of loan value of improved property |  |  |  | 85.00% |  |
Percentage of loan value of raw land |  |  |  | 65.00% |  |
Percentage of loan value of land to be acquired and developed |  |  |  | 75.00% |  |
Maximum | Residential real estate loans |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Loan-to-value ratio |  |  |  | 90.00% |  |
Maximum | Commercial and industrial |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Commercial loans terms |  |  |  | 7 years |  |
Inventory financing percentage | 80.00% |  |  | 80.00% |  |
Maximum | Commercial and industrial | Loans Past Due 30-59 Days |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Accounts receivable financed percentage | 80.00% |  |  | 80.00% |  |

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