CURRENT EXPECTED CREDIT LOSSES - Internal Credit Risk Rating (Details) - Loans Held for Investment $ in Thousands	Jun. 30, 2022 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
2022	$ 466,693
2021	981,484
2020	322,152
2019	381,487
2018	271,562
Prior	182,515
Total	2,605,893
1 - Very Low Risk
Financing Receivable, Credit Quality Indicator [Line Items]
2022	18,937
2021	28,515
2020	0
2019	33,966
2018	0
Prior	0
Total	81,418
2 - Low Risk
Financing Receivable, Credit Quality Indicator [Line Items]
2022	123,646
2021	377,227
2020	0
2019	83,976
2018	0
Prior	34,916
Total	619,765
3 - Medium Risk
Financing Receivable, Credit Quality Indicator [Line Items]
2022	260,682
2021	575,742
2020	322,152
2019	263,545
2018	170,004
Prior	147,599
Total	1,739,724
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]
2022	63,428
2021	0
2020	0
2019	0
2018	101,558
Prior	0
Total	164,986
5 - Impaired/Loss Likely: A loan that has significantly increased probability of default or principal loss
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
Prior	0
Total	$ 0