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FAIR VALUE - Valuation Technique and Unobservable Inputs Used in the Valuation of Government Guaranteed HFI, at Fair Value (Details) $ in Thousands	Sep. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Government guaranteed loans HFI, at fair value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Government guaranteed loans HFI, at fair value	$ 86,441	$ 91,508	[1]
Fair Value, Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Government guaranteed loans HFI, at fair value	86,441	91,508
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Government guaranteed loans HFI, at fair value	86,441	91,508
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Government guaranteed loans HFI, at fair value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Government guaranteed loans HFI, at fair value	$ 86,441	$ 91,508
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Minimum | Discount rate | Government guaranteed loans HFI, at fair value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, measurement input (as a percent)	0.0656	0.0736
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Minimum | Conditional prepayment rate | Government guaranteed loans HFI, at fair value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, measurement input (as a percent)	0.1087	0.1038
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Maximum | Discount rate | Government guaranteed loans HFI, at fair value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, measurement input (as a percent)	0.0994	0.1086
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Maximum | Conditional prepayment rate | Government guaranteed loans HFI, at fair value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, measurement input (as a percent)	0.1263	0.1569
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Weighted Average | Discount rate | Government guaranteed loans HFI, at fair value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, measurement input (as a percent)	0.0851	0.0874
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Weighted Average | Conditional prepayment rate | Government guaranteed loans HFI, at fair value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, measurement input (as a percent)	0.1209	0.1391
[1] Derived from audited consolidated financial statements

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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
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-Name Accounting Standards Codification
-Section 55
-Paragraph 103
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482078/820-10-55-103

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
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