CURRENT EXPECTED CREDIT LOSSES - Internal Credit Risk Rating (Details) - Loans Held for Investment $ in Thousands	Mar. 31, 2023 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
2023	$ 0
2022	574,382
2021	793,420
2020	330,830
2019	287,255
Prior	187,318
Total	2,173,205
1 - Very Low Risk
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	13,545
2021	5,588
2020	0
2019	0
Prior	0
Total	19,133
2 - Low Risk
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	34,863
2021	348,017
2020	0
2019	0
Prior	57,275
Total	440,155
3 - Medium Risk
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	450,076
2021	439,815
2020	138,920
2019	171,983
Prior	29,299
Total	1,230,093
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]
2023	0
2022	75,898
2021	0
2020	191,910
2019	115,272
Prior	17,385
Total	400,465
5 - Impaired/Loss Likely: A loan that has significantly increased probability of default or principal loss
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	83,359
Total	$ 83,359