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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 16, 2020 | Dec. 31, 2023 USD ($) Segment Family ResidentialHouse | Dec. 31, 2022 USD ($) | Mar. 27, 2020 USD ($)
Property, Plant and Equipment [Line Items] |  |  |  |
Number of families secured by loans of real estate | Family |  | 4 |  |
Number of housing units secured by loans from segment | ResidentialHouse |  | 5 |  |
Goodwill impairment |  | $ 0 |  |
Number of operating segments | Segment |  | 1 |  |
Number of reportable operating segments | Segment |  | 1 |  |
Decrease to retained earnings |  | $ 156,878,000 | $ 137,565,000 |
Core Deposits [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Core deposit amortization period |  | 10 years |  |
COVID-19 |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Maximum authorized amount of coronavirus aid, relief and economic security |  |  |  | $ 2,000,000,000,000
Description of federal fund interest rate |  | Due to the COVID-19 pandemic, market interest rates declined significantly, with the 10-year Treasury bond falling below 1.00% on March 3, 2020 for the first time. On March 16, 2020, the Federal Open Market Committee ("FOMC") reduced the target federal funds rate range to 0.00% to 0.25%, at which it remained until March 2022, when the FOMC began to rapidly increase market interest rates in response to high levels of inflation that arose in the U.S. economy. From March 2022 through July 31, 2023, the FOMC increased market rates from 0.00% to a target range of 5.25% to 5.50%. |  |
COVID-19 | Minimum |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Federal open market committee reduced target federal funds interest rate. | 0.00% |  |  |
Federal Open Market Committee Increased Market Rates |  | 5.25% |  |
COVID-19 | Maximum |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Federal open market committee reduced target federal funds interest rate. | 0.25% |  |  |
Federal Open Market Committee Increased Market Rates |  | 5.50% |  |

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