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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Collateral Dependent Loans (Detail) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | $ 58,635 | $ 36,684
Commercial |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | 9,306 | 8,485
Residential |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | 41,723 | 20,484
Business Assets |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | 7,606 | 7,715
Commercial | Commercial and industrial |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | 10,292 | 10,457
Commercial | Commercial real estate |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | 5,835 | 4,654
Commercial | SBA |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | 3,964 | 3,596
Commercial | Commercial | Commercial and industrial |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | 5,368 | 5,492
Commercial | Commercial | Commercial real estate |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | 3,864 | 2,644
Commercial | Commercial | SBA |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | 74 | 349
Commercial | Residential | Commercial and industrial |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | 0 | 0
Commercial | Residential | Commercial real estate |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | 1,971 | 2,010
Commercial | Residential | SBA |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | 1,208 | 497
Commercial | Business Assets | Commercial and industrial |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | 4,924 | 4,965
Commercial | Business Assets | Commercial real estate |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | 0 | 0
Commercial | Business Assets | SBA |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | 2,682 | 2,750
Consumer | Single family residential mortgage |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | 38,544 | 17,820
Consumer | Other consumer |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans |  | 157
Consumer | Commercial | Single family residential mortgage |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | 0 | 0
Consumer | Commercial | Other consumer |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans |  | 0
Consumer | Residential | Single family residential mortgage |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | 38,544 | 17,820
Consumer | Residential | Other consumer |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans |  | 157
Consumer | Business Assets | Single family residential mortgage |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans | $ 0 | 0
Consumer | Business Assets | Other consumer |  |
Financing Receivable, Impaired [Line Items] |  |
Collateral dependent loans |  | $ 0

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