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Loans and Leases Receivable and Allowance for Credit Losses on Loans and Leases - Summary of Amortized Cost of Loans and Leases on Nonaccrual Status (Detail) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | $ 14,717 | $ 12,564
Nonaccrual loans with related allowance | 11,432 | 11,967
Total nonaccrual loans | 26,149 | 24,531
Commercial and industrial, including specialty lending |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 3,742 | 1,731
Nonaccrual loans with related allowance | 144 | 30
Total nonaccrual loans | 3,886 | 1,761
Multifamily |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 881 | 1,143
Nonaccrual loans with related allowance | 0 | 0
Total nonaccrual loans | 881 | 1,143
Commercial real estate owner occupied |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 3,621 | 2,768
Nonaccrual loans with related allowance | 0 | 0
Total nonaccrual loans | 3,621 | 2,768
Residential real estate |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 6,473 | 6,922
Nonaccrual loans with related allowance | 0 | 0
Total nonaccrual loans | 6,473 | 6,922
Manufactured housing |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 0 | 0
Nonaccrual loans with related allowance | 2,568 | 2,410
Total nonaccrual loans | 2,568 | 2,410
Installment |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 0 | 0
Nonaccrual loans with related allowance | 8,720 | 9,527
Total nonaccrual loans | $ 8,720 | $ 9,527

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