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FAIR VALUE MEASUREMENTS - Information about Significant Unobservable Inputs Used for Recurring Fair Value Measurements for Level 3 MSRs (Detail) - Fair Value, Measurements, Recurring - Level 3 | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
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Discount rate | Mortgage Servicing Rights | Minimum |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
MSR measurement inputs | 0.070 | 0.084
Discount rate | Mortgage Servicing Rights | Maximum |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
MSR measurement inputs | 0.120 | 0.107
Discount rate | Mortgage Servicing Rights | Weighted Average |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
MSR measurement inputs | 0.086 | 0.097
Prepayment rate | Mortgage Servicing Rights | Minimum |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
MSR measurement inputs | 0.048 | 0.048
Prepayment rate | Mortgage Servicing Rights | Maximum |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
MSR measurement inputs | 0.110 | 0.081
Prepayment rate | Mortgage Servicing Rights | Weighted Average |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
MSR measurement inputs | 0.056 | 0.054
Delinquency rate | Mortgage Servicing Rights | Minimum |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
MSR measurement inputs | 0.002 | 0.002
Delinquency rate | Mortgage Servicing Rights | Maximum |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
MSR measurement inputs | 0.042 | 0.045
Delinquency rate | Mortgage Servicing Rights | Weighted Average |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
MSR measurement inputs | 0.013 | 0.013
Cost to service | Minimum |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
MSR measurement inputs | 84 | 86
Cost to service | Maximum |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
MSR measurement inputs | 111 | 118
Cost to service | Weighted Average |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
MSR measurement inputs | 94 | 95

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