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v3.25.1

Allowance for Credit Losses, Credit Quality and Other - Additional Information (Detail) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 31, 2025 USD ($) loan | Mar. 31, 2024 USD ($) loan | Dec. 31, 2024 USD ($) | Dec. 31, 2024 USD ($) loan
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Net recoveries | $ 4,064,000 | $ (3,440,000) | $ (57,314,000) |
Provision for credit losses on loans | 0 | 5,500,000 |  |
Recovery of credit losses - unfunded commitments | 0 | (1,000,000) |  |
Financing receivable, modified specific reserve | 4,200,000 |  |  |
Nonaccrual | 86,383,000 |  | 93,853,000 | $ 93,853,000
Loans Past Due Over 90 Days Still Accruing | 3,264,000 |  | 5,034,000 | 5,034,000
Nonaccrual loans with specific reserve | 28,400,000 |  | 28,800,000 | 28,800,000
Interest income on nonaccrual loans | 0 | 0 |  |
Amortized cost | 241,100,000 |  | 268,000,000.0 | 268,000,000.0
Financing receivable, individually evaluated for credit loss, interest income | 3,000,000.0 | 685,000 |  |
Amount of loan assessed for impairment on a quarterly basis | 2,000,000.0 |  |  |
Revolver loans converted to term loans | $ 15,200,000 | $ 10,300,000 |  |
Number of revolving loans convert to term loans | loan | 44 | 61 |  |
Number of loans | loan | 4 | 3 |  |
Loans, ending balance | $ 3,900,000 | $ 656,000 |  |
Postmodification balance | 122,180,000 |  |  | $ 122,675,000
Financing receivable, modifications, underwritten the interest rate basis points |  |  |  | 0.0012
Loans payable | 113,300,000 |  |  |
Hurricane Deferred Loans |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Financing receivable, modified specific reserve | 6,000,000 |  | 33,400,000 | $ 33,400,000
13 Modified Loan Borrowers |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Financial receivable, excluding accrued interest, modified in period, premodification | 4,000,000.0 | 668,000 |  |
Borrowers Experiencing Financial Difficulty |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Financial receivable, excluding accrued interest, modified in period, premodification | $ 112,300,000 |  |  |
Number of loans | loan | 16 |  |  |
Loans, ending balance | $ 100,200,000 |  |  |
Loan balance, nonaccrual | $ 1,200,000 |  |  |
Three Modified Loans |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Number of loans | loan |  |  |  | 3
Postmodification balance |  |  |  | $ 95,000,000
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 |  |  |
Total Past Due | Borrowers Experiencing Financial Difficulty |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Loans, ending balance | $ 99,000,000 |  |  |
Residential real estate loans |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Net recoveries | (24,000) | (140,000) | (6,747,000) |
Provision for credit losses on loans | 2,597,000 |  |  |
Commercial and industrial |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Net recoveries | 797,000 | $ (1,645,000) | (8,816,000) |
Provision for credit losses on loans | 9,704,000 |  |  |
Nonaccrual | 7,619,000 |  | 10,931,000 | 10,931,000
Loans Past Due Over 90 Days Still Accruing | 2,380,000 |  | $ 2,263,000 | 2,263,000
Postmodification balance | $ 65,936,000 |  |  | $ 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% |  |  |
Minimum | Commercial and industrial | Loans Past Due 30-59 Days |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Accounts receivable financed percentage | 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% |  |  |
Maximum | Commercial and industrial | Loans Past Due 30-59 Days |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Accounts receivable financed percentage | 80.00% |  |  |

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