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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 | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | $ 29,252 | $ 15,919
Nonaccrual loans with related allowance | 12,767 | 10,730
Total nonaccrual loans | 42,019 | 26,649
Commercial and industrial, including specialized lending |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 4,598 | 3,365
Nonaccrual loans with related allowance | 17 | 1,071
Total nonaccrual loans | 4,615 | 4,436
Multifamily |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 11,834 | 0
Nonaccrual loans with related allowance | 0 | 0
Total nonaccrual loans | 11,834 | 0
Commercial real estate owner occupied |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 4,590 | 5,869
Nonaccrual loans with related allowance | 4,023 | 0
Total nonaccrual loans | 8,613 | 5,869
Commercial real estate non-owner occupied |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 763 | 0
Nonaccrual loans with related allowance | 0 | 0
Total nonaccrual loans | 763 | 0
Residential real estate |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 7,467 | 6,685
Nonaccrual loans with related allowance | 530 | 117
Total nonaccrual loans | 7,997 | 6,802
Manufactured housing |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 0 | 0
Nonaccrual loans with related allowance | 1,869 | 2,331
Total nonaccrual loans | 1,869 | 2,331
Installment |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual loans with no related allowance | 0 | 0
Nonaccrual loans with related allowance | 6,328 | 7,211
Total nonaccrual loans | $ 6,328 | $ 7,211

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