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Loans and Leases and the Allowance for Credit Losses - Summary of Loan grades applied various classes of Commercial and Real Estate Loans (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Year one | $ 9,545,000 |  | $ 9,545,000 |  | $ 18,423,000
Year two | 16,667,000 |  | 16,667,000 |  | 21,683,000
Year three | 19,766,000 |  | 19,766,000 |  | 15,025,000
Year four | 13,567,000 |  | 13,567,000 |  | 10,555,000
Year five | 9,431,000 |  | 9,431,000 |  | 10,062,000
Prior | 33,184,000 |  | 33,184,000 |  | 27,464,000
Total | 135,002,000 |  | 135,002,000 |  | 134,068,000
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |  |  |
Year one | 6,000 |  | 7,000 |  |
Year two | 20,000 |  | 35,000 |  |
Year three | 20,000 |  | 41,000 |  |
Year four | 19,000 |  | 32,000 |  |
Year five | 15,000 |  | 24,000 |  |
Prior | 53,000 |  | 88,000 |  |
Total | 180,000 | $ 162,000 | 343,000 | $ 257,000 |
Commercial and industrial |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Year one | 4,305,000 |  | 4,305,000 |  | 9,010,000
Year two | 7,933,000 |  | 7,933,000 |  | 8,434,000
Year three | 7,647,000 |  | 7,647,000 |  | 5,133,000
Year four | 4,500,000 |  | 4,500,000 |  | 2,465,000
Year five | 2,123,000 |  | 2,123,000 |  | 2,332,000
Prior | 7,258,000 |  | 7,258,000 |  | 5,474,000
Revolving Loans | 26,130,000 |  | 26,130,000 |  | 24,048,000
Revolving Loans Converted to Term Loans | 131,000 |  | 131,000 |  | 114,000
Total | 60,027,000 |  | 60,027,000 |  | 57,010,000
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |  |  |
Year one | 1,000 |  | 1,000 |  |
Year two | 7,000 |  | 14,000 |  |
Year three | 10,000 |  | 19,000 |  |
Year four | 11,000 |  | 15,000 |  |
Year five | 7,000 |  | 10,000 |  |
Prior | 9,000 |  | 14,000 |  |
Revolving Loans | 33,000 |  | 83,000 |  |
Revolving Loans Converted to Term Loans | 0 |  | 0 |  |
Total | 78,000 |  | 156,000 |  |
Commercial and industrial | Pass |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Year one | 4,226,000 |  | 4,226,000 |  | 8,689,000
Year two | 7,554,000 |  | 7,554,000 |  | 8,087,000
Year three | 7,107,000 |  | 7,107,000 |  | 4,800,000
Year four | 4,199,000 |  | 4,199,000 |  | 2,248,000
Year five | 1,932,000 |  | 1,932,000 |  | 2,169,000
Prior | 6,299,000 |  | 6,299,000 |  | 4,843,000
Revolving Loans | 24,139,000 |  | 24,139,000 |  | 22,345,000
Revolving Loans Converted to Term Loans | 73,000 |  | 73,000 |  | 70,000
Total | 55,529,000 |  | 55,529,000 |  | 53,251,000
Commercial and industrial | Criticized accrual |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Year one | 74,000 |  | 74,000 |  | 292,000
Year two | 334,000 |  | 334,000 |  | 279,000
Year three | 443,000 |  | 443,000 |  | 277,000
Year four | 244,000 |  | 244,000 |  | 142,000
Year five | 129,000 |  | 129,000 |  | 127,000
Prior | 738,000 |  | 738,000 |  | 481,000
Revolving Loans | 1,690,000 |  | 1,690,000 |  | 1,460,000
Revolving Loans Converted to Term Loans | 41,000 |  | 41,000 |  | 31,000
Total | 3,693,000 |  | 3,693,000 |  | 3,089,000
Commercial and industrial | Criticized nonaccrual |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Year one | 5,000 |  | 5,000 |  | 29,000
Year two | 45,000 |  | 45,000 |  | 68,000
Year three | 97,000 |  | 97,000 |  | 56,000
Year four | 57,000 |  | 57,000 |  | 75,000
Year five | 62,000 |  | 62,000 |  | 36,000
Prior | 221,000 |  | 221,000 |  | 150,000
Revolving Loans | 301,000 |  | 301,000 |  | 243,000
Revolving Loans Converted to Term Loans | 17,000 |  | 17,000 |  | 13,000
Total | 805,000 |  | 805,000 |  | 670,000
Commercial Real Estate |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |  |  |
Total | 43,000 | $ 99,000 | 68,000 | $ 128,000 |
Commercial Real Estate | Commercial |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Year one | 339,000 |  | 339,000 |  | 2,275,000
Year two | 2,041,000 |  | 2,041,000 |  | 2,679,000
Year three | 2,125,000 |  | 2,125,000 |  | 1,835,000
Year four | 1,655,000 |  | 1,655,000 |  | 2,580,000
Year five | 2,592,000 |  | 2,592,000 |  | 4,118,000
Prior | 13,611,000 |  | 13,611,000 |  | 11,340,000
Revolving Loans | 403,000 |  | 403,000 |  | 450,000
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 0
Total | 22,766,000 |  | 22,766,000 |  | 25,277,000
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |  |  |
Year one | 0 |  | 0 |  |
Year two | 4,000 |  | 4,000 |  |
Year three | 0 |  | 0 |  |
Year four | 0 |  | 0 |  |
Year five | 5,000 |  | 5,000 |  |
Prior | 30,000 |  | 43,000 |  |
Revolving Loans | 0 |  | 0 |  |
Revolving Loans Converted to Term Loans | 0 |  | 0 |  |
Total | 39,000 |  | 52,000 |  |
Commercial Real Estate | Commercial | Pass |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Year one | 339,000 |  | 339,000 |  | 2,048,000
Year two | 1,747,000 |  | 1,747,000 |  | 1,742,000
Year three | 1,377,000 |  | 1,377,000 |  | 1,367,000
Year four | 1,178,000 |  | 1,178,000 |  | 2,011,000
Year five | 1,860,000 |  | 1,860,000 |  | 3,059,000
Prior | 10,663,000 |  | 10,663,000 |  | 8,491,000
Revolving Loans | 395,000 |  | 395,000 |  | 440,000
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 0
Total | 17,559,000 |  | 17,559,000 |  | 19,158,000
Commercial Real Estate | Commercial | Criticized accrual |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Year one | 0 |  | 0 |  | 227,000
Year two | 294,000 |  | 294,000 |  | 891,000
Year three | 726,000 |  | 726,000 |  | 465,000
Year four | 445,000 |  | 445,000 |  | 456,000
Year five | 695,000 |  | 695,000 |  | 966,000
Prior | 2,333,000 |  | 2,333,000 |  | 2,238,000
Revolving Loans | 7,000 |  | 7,000 |  | 7,000
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 0
Total | 4,500,000 |  | 4,500,000 |  | 5,250,000
Commercial Real Estate | Commercial | Criticized nonaccrual |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Year one | 0 |  | 0 |  | 0
Year two | 0 |  | 0 |  | 46,000
Year three | 22,000 |  | 22,000 |  | 3,000
Year four | 32,000 |  | 32,000 |  | 113,000
Year five | 37,000 |  | 37,000 |  | 93,000
Prior | 615,000 |  | 615,000 |  | 611,000
Revolving Loans | 1,000 |  | 1,000 |  | 3,000
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 0
Total | 707,000 |  | 707,000 |  | 869,000
Commercial Real Estate | Residential builder and developer |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Year one | 240,000 |  | 240,000 |  | 531,000
Year two | 431,000 |  | 431,000 |  | 270,000
Year three | 164,000 |  | 164,000 |  | 74,000
Year four | 35,000 |  | 35,000 |  | 6,000
Year five | 4,000 |  | 4,000 |  | 61,000
Prior | 43,000 |  | 43,000 |  | 12,000
Revolving Loans | 113,000 |  | 113,000 |  | 119,000
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 0
Total | 1,030,000 |  | 1,030,000 |  | 1,073,000
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |  |  |
Year one | 0 |  | 0 |  |
Year two | 0 |  | 0 |  |
Year three | 0 |  | 0 |  |
Year four | 0 |  | 0 |  |
Year five | 0 |  | 0 |  |
Prior | 1,000 |  | 2,000 |  |
Revolving Loans | 0 |  | 0 |  |
Revolving Loans Converted to Term Loans | 0 |  | 0 |  |
Total | 1,000 |  | 2,000 |  |
Commercial Real Estate | Residential builder and developer | Pass |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Year one | 234,000 |  | 234,000 |  | 530,000
Year two | 379,000 |  | 379,000 |  | 252,000
Year three | 119,000 |  | 119,000 |  | 41,000
Year four | 24,000 |  | 24,000 |  | 6,000
Year five | 4,000 |  | 4,000 |  | 2,000
Prior | 11,000 |  | 11,000 |  | 12,000
Revolving Loans | 113,000 |  | 113,000 |  | 116,000
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 0
Total | 884,000 |  | 884,000 |  | 959,000
Commercial Real Estate | Residential builder and developer | Criticized accrual |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Year one | 6,000 |  | 6,000 |  | 1,000
Year two | 52,000 |  | 52,000 |  | 18,000
Year three | 45,000 |  | 45,000 |  | 30,000
Year four | 10,000 |  | 10,000 |  | 0
Year five | 0 |  | 0 |  | 59,000
Prior | 31,000 |  | 31,000 |  | 0
Revolving Loans | 0 |  | 0 |  | 3,000
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 0
Total | 144,000 |  | 144,000 |  | 111,000
Commercial Real Estate | Residential builder and developer | Criticized nonaccrual |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Year one | 0 |  | 0 |  | 0
Year two | 0 |  | 0 |  | 0
Year three | 0 |  | 0 |  | 3,000
Year four | 1,000 |  | 1,000 |  | 0
Year five | 0 |  | 0 |  | 0
Prior | 1,000 |  | 1,000 |  | 0
Revolving Loans | 0 |  | 0 |  | 0
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 0
Total | 2,000 |  | 2,000 |  | 3,000
Commercial Real Estate | Other commercial construction |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Year one | 43,000 |  | 43,000 |  | 866,000
Year two | 1,272,000 |  | 1,272,000 |  | 1,771,000
Year three | 1,878,000 |  | 1,878,000 |  | 1,051,000
Year four | 975,000 |  | 975,000 |  | 1,110,000
Year five | 645,000 |  | 645,000 |  | 1,261,000
Prior | 871,000 |  | 871,000 |  | 562,000
Revolving Loans | 52,000 |  | 52,000 |  | 32,000
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 0
Total | 5,736,000 |  | 5,736,000 |  | 6,653,000
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |  |  |
Year one | 0 |  | 0 |  |
Year two | 0 |  | 0 |  |
Year three | 0 |  | 2,000 |  |
Year four | 0 |  | 0 |  |
Year five | 0 |  | 0 |  |
Prior | 3,000 |  | 10,000 |  |
Revolving Loans | 0 |  | 2,000 |  |
Revolving Loans Converted to Term Loans | 0 |  | 0 |  |
Total | 3,000 |  | 14,000 |  |
Commercial Real Estate | Other commercial construction | Pass |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Year one | 43,000 |  | 43,000 |  | 813,000
Year two | 1,171,000 |  | 1,171,000 |  | 1,366,000
Year three | 1,184,000 |  | 1,184,000 |  | 651,000
Year four | 517,000 |  | 517,000 |  | 373,000
Year five | 242,000 |  | 242,000 |  | 646,000
Prior | 332,000 |  | 332,000 |  | 187,000
Revolving Loans | 44,000 |  | 44,000 |  | 30,000
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 0
Total | 3,533,000 |  | 3,533,000 |  | 4,066,000
Commercial Real Estate | Other commercial construction | Criticized accrual |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Year one | 0 |  | 0 |  | 53,000
Year two | 101,000 |  | 101,000 |  | 391,000
Year three | 693,000 |  | 693,000 |  | 390,000
Year four | 449,000 |  | 449,000 |  | 691,000
Year five | 358,000 |  | 358,000 |  | 565,000
Prior | 517,000 |  | 517,000 |  | 326,000
Revolving Loans | 8,000 |  | 8,000 |  | 0
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 0
Total | 2,126,000 |  | 2,126,000 |  | 2,416,000
Commercial Real Estate | Other commercial construction | Criticized nonaccrual |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Year one | 0 |  | 0 |  | 0
Year two | 0 |  | 0 |  | 14,000
Year three | 1,000 |  | 1,000 |  | 10,000
Year four | 9,000 |  | 9,000 |  | 46,000
Year five | 45,000 |  | 45,000 |  | 50,000
Prior | 22,000 |  | 22,000 |  | 49,000
Revolving Loans | 0 |  | 0 |  | 2,000
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 0
Total | $ 77,000 |  | $ 77,000 |  | $ 171,000

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