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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, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | $ 34,976 | $ 41,508
Nonaccrual loans with related allowance | 8,295 | 7,605
Total nonaccrual loans | 43,271 | 49,113
Multi-family |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 17,869 | 22,654
Nonaccrual loans with related allowance | 0 | 0
Total nonaccrual loans | 17,869 | 22,654
Commercial and industrial |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 5,490 | 5,837
Nonaccrual loans with related allowance | 0 | 259
Total nonaccrual loans | 5,490 | 6,096
Commercial real estate owner occupied |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 2,191 | 2,475
Nonaccrual loans with related allowance | 0 | 0
Total nonaccrual loans | 2,191 | 2,475
Commercial real estate non-owner occupied |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 1,302 | 2,815
Nonaccrual loans with related allowance | 0 | 0
Total nonaccrual loans | 1,302 | 2,815
Residential real estate |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 8,124 | 7,727
Nonaccrual loans with related allowance | 0 | 0
Total nonaccrual loans | 8,124 | 7,727
Manufactured housing |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 0 | 0
Nonaccrual loans with related allowance | 3,430 | 3,563
Total nonaccrual loans | 3,430 | 3,563
Installment |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 0 | 0
Nonaccrual loans with related allowance | 4,865 | 3,783
Total nonaccrual loans | $ 4,865 | $ 3,783

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