CURRENT EXPECTED CREDIT LOSSES - Internal Credit Risk Rating (Details) - Loans Held for Investment $ in Thousands	Mar. 31, 2024 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
2024	$ 0
2023	114,754
2022	613,409
2021	760,788
2020	262,779
Prior	262,770
Total	2,014,500
1 - Very Low Risk
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0
2022	37,800
2021	0
2020	0
Prior	0
Total	37,800
2 - Low Risk
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	103,751
2022	11,446
2021	163,851
2020	0
Prior	20,320
Total	299,368
3 - Medium Risk
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	11,003
2022	378,815
2021	589,351
2020	108,815
Prior	111,804
Total	1,199,788
4 - High Risk/Potential for Loss: Asset performance is trailing underwritten expectations. Loan at risk of impairment without material improvement to performance
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0
2022	185,348
2021	7,586
2020	153,964
Prior	84,160
Total	431,058
5 - Impaired/Loss Likely: A loan that has significantly increased probability of default or principal loss
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0
2022	0
2021	0
2020	0
Prior	46,486
Total	$ 46,486