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LOANS AND LEASES - Additional Information (Detail) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 USD ($) loans | Dec. 31, 2021 USD ($) | Dec. 31, 2022 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Unused Commitments to Extend Credit | $ 3,982,599,000 |  | $ 3,904,732,000
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loans | 18 |  |
Financing Receivable, Troubled Debt Restructuring, Subsequent Default | $ 4,400,000 | $ 29,000 |
Restructured Loans, Nonaccrual Status |  | $ 16,000,000 | $ 10,000,000
Financial Difficulty Modification |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Unused Commitments to Extend Credit | 0 |  |
Residential real estate |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Restructured Loans, Loan Relationships, Review Threshold Amount Minimum | $ 250,000 |  |

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