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Loans and Leases Receivable and Allowance for Credit Losses on Loans and Leases - Analysis of Loans Modified in Troubled Debt Restructuring by Type of Concession (Detail) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 USD ($) loan | Jun. 30, 2022 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Number of loans | loan | 71 | 113
Recorded investment | $ | $ 867 | $ 1,664
Interest-rate reductions |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Number of loans | loan | 4 | 14
Recorded investment | $ | $ 124 | $ 470
Other |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Number of loans | loan | 67 | 99
Recorded investment | $ | $ 743 | $ 1,194

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