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Loans and Lease Finance Receivables and Allowance for Credit Losses - Summary of Loans Modified as Troubled Debt Restructurings (Detail) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 USD ($) Agreement Contract | Sep. 30, 2021 USD ($) Contract | Sep. 30, 2022 USD ($) Contract | Sep. 30, 2021 USD ($) Contract
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |  |
Troubled debt restructurings, Number of Loans | [1] | 2 |  | 0 |  | 2 | 3 |
Troubled debt restructurings, Pre-Modification Outstanding Recorded Investment | [1] | $ 3,204 |  | $ 0 |  | $ 3,204 | $ 7,096 |
Troubled debt restructurings, Post-Modification Outstanding Recorded Investment | [1] | 3,204 |  | 0 |  | 3,204 | 7,096 |
Troubled debt restructurings, Outstanding Recorded Investment | [1] | 3,204 |  | 0 |  | 3,204 | 6,739 |
Troubled debt restructurings, Financial Effect Resulting From Modifications | [1] | $ 0 | [2] | $ 0 | [2] | $ 0 | $ 0 | [2]
Commercial Real Estate Owner Occupied [Member] | Interest rate reduction [Member] |  |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |  |
Troubled debt restructurings, Number of Loans | [1] | 0 |  | 0 |  | 0 | 1 |
Troubled debt restructurings, Pre-Modification Outstanding Recorded Investment | [1] | $ 0 |  | $ 0 |  | $ 0 | $ 2,453 |
Troubled debt restructurings, Post-Modification Outstanding Recorded Investment | [1] | 0 |  | 0 |  | 0 | 2,453 |
Troubled debt restructurings, Outstanding Recorded Investment | [1] | 0 |  | 0 |  | 0 | 2,446 |
Troubled debt restructurings, Financial Effect Resulting From Modifications | [1] | $ 0 | [2] | $ 0 | [2] | $ 0 | $ 0 | [2]
Commercial Real Estate Owner Occupied [Member] | Change in Amortization Period [Member] |  |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |  |
Troubled debt restructurings, Number of Loans | [1] | 0 |  | 0 |  | 0 | 0 |
Troubled debt restructurings, Pre-Modification Outstanding Recorded Investment | [1] | $ 0 |  | $ 0 |  | $ 0 | $ 0 |
Troubled debt restructurings, Post-Modification Outstanding Recorded Investment | [1] | 0 |  | 0 |  | 0 | 0 |
Troubled debt restructurings, Outstanding Recorded Investment | [1] | 0 |  | 0 |  | 0 | 0 |
Troubled debt restructurings, Financial Effect Resulting From Modifications | [1] | $ 0 | [2] | $ 0 | [2] | $ 0 | $ 0 | [2]
Commercial and Industrial Loans [Member] | Interest rate reduction [Member] |  |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |  |
Troubled debt restructurings, Number of Loans | Contract | [1] | 0 |  | 0 |  | 0 | 0 |
Troubled debt restructurings, Pre-Modification Outstanding Recorded Investment | [1] | $ 0 |  | $ 0 |  | $ 0 | $ 0 |
Troubled debt restructurings, Post-Modification Outstanding Recorded Investment | [1] | 0 |  | 0 |  | 0 | 0 |
Troubled debt restructurings, Outstanding Recorded Investment | [1] | 0 |  | 0 |  | 0 | 0 |
Troubled debt restructurings, Financial Effect Resulting From Modifications | [1] | $ 0 | [2] | $ 0 | [2] | $ 0 | $ 0 | [2]
Commercial and Industrial Loans [Member] | Change in Amortization Period [Member] |  |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |  |
Troubled debt restructurings, Number of Loans | [1] | 2 |  | 0 |  | 2 | 2 |
Troubled debt restructurings, Pre-Modification Outstanding Recorded Investment | [1] | $ 3,204 |  | $ 0 |  | $ 3,204 | $ 4,643 |
Troubled debt restructurings, Post-Modification Outstanding Recorded Investment | [1] | 3,204 |  | 0 |  | 3,204 | 4,643 |
Troubled debt restructurings, Outstanding Recorded Investment | [1] | 3,204 |  | 0 |  | 3,204 | 4,293 |
Troubled debt restructurings, Financial Effect Resulting From Modifications | [1] | $ 0 | [2] | $ 0 | [2] | $ 0 | $ 0 | [2]
SFR Mortgage [Member] | Interest rate reduction [Member] |  |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |  |
Troubled debt restructurings, Number of Loans | Contract | [1] | 0 |  | 0 |  | 0 | 0 |
Troubled debt restructurings, Pre-Modification Outstanding Recorded Investment | [1] | $ 0 |  | $ 0 |  | $ 0 | $ 0 |
Troubled debt restructurings, Post-Modification Outstanding Recorded Investment | [1] | 0 |  | 0 |  | 0 | 0 |
Troubled debt restructurings, Outstanding Recorded Investment | [1] | 0 |  | 0 |  | 0 | 0 |
Troubled debt restructurings, Financial Effect Resulting From Modifications | [1] | $ 0 | [2] | $ 0 | [2] | $ 0 | $ 0 | [2]
SFR Mortgage [Member] | Change in Amortization Period [Member] |  |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |  |
Troubled debt restructurings, Number of Loans | Contract | [1] | 0 |  | 0 |  | 0 | 0 |
Troubled debt restructurings, Pre-Modification Outstanding Recorded Investment | [1] | $ 0 |  | $ 0 |  | $ 0 | $ 0 |
Troubled debt restructurings, Post-Modification Outstanding Recorded Investment | [1] | 0 |  | 0 |  | 0 | 0 |
Troubled debt restructurings, Outstanding Recorded Investment | [1] | 0 |  | 0 |  | 0 | 0 |
Troubled debt restructurings, Financial Effect Resulting From Modifications | [1] | $ 0 | [2] | $ 0 | [2] | $ 0 | $ 0 | [2]
[1] | The tables above exclude modified loans that were paid off prior to the end of the period.
[2] | Financial effects resulting from modifications represent charge-offs and current allowance for credit losses at modification date.

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