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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Effect of Derivative Financial Instruments on Net Income and Comprehensive Income (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Derivatives designated as fair value hedges: | Fair Value Hedging |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amount of Income (Loss) Recognized in Earnings | $ 237 | $ 0 | $ 336 | $ 0
Derivatives designated as fair value hedges: | Interest rate swaps | Fair Value Hedging |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amount of Income (Loss) Recognized in Earnings | (2,322) | 3,563 | (4,290) | 11,736
Derivatives designated as fair value hedges: | AFS debt securities | Fair Value Hedging |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amount of Income (Loss) Recognized in Earnings | 0 | (256) | 0 | (433)
Derivatives designated as fair value hedges: | Deposits | Fair Value Hedging |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amount of Income (Loss) Recognized in Earnings | 1,563 | (1,686) | 2,736 | (1,686)
Derivatives designated as fair value hedges: | FHLB advances | Fair Value Hedging |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amount of Income (Loss) Recognized in Earnings | 996 | (1,621) | 1,890 | (9,617)
Derivatives not designated as hedging instruments: | Interest rate swaps, caps and collars |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amount of Income (Loss) Recognized in Earnings | $ 892 | $ 63 | $ 1,671 | $ 735

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