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FAIR VALUE MEASUREMENTS - Schedule of Quantitative Information about the Significant Unobservable Inputs within Level 3 (Details) $ in Thousands | Dec. 31, 2022 USD ($) uSDPerLoan | Dec. 31, 2021 USD ($) uSDPerLoan
--- | --- | ---
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Trading security | $ 6,708 | $ 8,354
Securities available for sale, at fair value | 1,423,200 | 1,877,585
Commitments | 54,241 | 79,528
Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Securities available for sale, at fair value | 4,000 | 4,030
Level 3 | Recurring |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Trading security | 6,708 | 8,354
Loans held for investment | 605 | 1,200
Total | 13,184 | 15,808
Level 3 | Recurring | Commitments to Lend |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Commitments | 17 | 124
Level 3 | Recurring | Forward Commitments |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Commitments | 8 | 134
Level 3 | Recurring | Capitalized Servicing Rights |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Capitalized Servicing Rights | 1,846 | 1,966
Level 3 | Recurring | Securities Available for Sale |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Securities available for sale, at fair value | $ 4,000 | $ 4,030
Level 3 | Recurring | Discount Rate | Discounted Cash Flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Trading security, significant unobservable input value | 0.0592 | 0.0335
Loans held for investment, Significant Unobservable Input Value | 0.2500 | 0.2500
Level 3 | Recurring | Discount Rate | Discounted Cash Flow | Capitalized Servicing Rights |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Capitalized Servicing Rights, Significant Unobservable Input Value | 0.0956 | 0.0950
Level 3 | Recurring | Price | Indication from Market Maker | Securities Available for Sale |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Securities Available for Sale, Significant Unobservable Input Value | 1.0000 | 1.0100
Level 3 | Recurring | Collateral Value | Discounted Cash Flow | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Loans held for investment, Significant Unobservable Input Value | 0 | 6.3
Level 3 | Recurring | Collateral Value | Discounted Cash Flow | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Loans held for investment, Significant Unobservable Input Value | 20.4 | 19.8
Level 3 | Recurring | Closing Ratio | Historical Trend | Commitments to Lend |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Commitments, Significant Unobservable Input Value | 0.8063 | 0.8209
Level 3 | Recurring | Closing Ratio | Historical Trend | Forward Commitments |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Commitments, Significant Unobservable Input Value | 0.8063 | 0.8209
Level 3 | Recurring | Origination Costs, per loan | Pricing Model | Commitments to Lend |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Commitments, Significant Unobservable Input Value | uSDPerLoan | 2,000 | 3,000
Level 3 | Recurring | Origination Costs, per loan | Pricing Model | Forward Commitments |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Commitments, Significant Unobservable Input Value | uSDPerLoan | 2,000 | 3,000
Level 3 | Recurring | Constant prepayment rate (CPR) | Discounted Cash Flow | Capitalized Servicing Rights |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Capitalized Servicing Rights, Significant Unobservable Input Value | 0.1107 | 0.1941

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