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BORROWINGS - Advances from the Federal Home Loan Bank (FHLB) - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Federal Home Loan Bank, Advances [Line Items] |  |
Average balance during the year | $ 500.1 | $ 541.0
Estimated value of U.S. government-sponsored agencies' obligations and U.S. agencies MBS pledged as collateral amount | 438.5 | 454.0
Additional capacity on credit facility based on collateral pledged | 950.9 |
Maximum [Member] |  |
Federal Home Loan Bank, Advances [Line Items] |  |
Maximum aggregate balance of advances from the FHLB outstanding at any month-end during period | 500.0 | 925.0
Federal Home Loan Bank Advances [Member] | Asset Pledged as Collateral [Member] |  |
Federal Home Loan Bank, Advances [Line Items] |  |
Loans pledged including collateral | $ 1,200.0 | $ 1,200.0

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- Definition Estimated value of U.S. government-sponsored agencies' obligations and U.S. agencies MBS pledged as collateral amount. + References No definition available. + Details
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- Definition The estimated value (including the collateral discount) as of the balance sheet date of loans that have been pledged as collateral for borrowings. + References No definition available. + Details
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- Definition The calculated average balance outstanding for the year for all Federal Home Loan Bank advances as of the Balance Sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)(3)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 + Details
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