LOANS RECEIVABLE AND OTHER INVESTMENTS - Composition of Loans Receivable and Other Investments (Details) $ in Thousands	Mar. 31, 2022 USD ($) loan investment preferredEquityInvestment	Dec. 31, 2021 USD ($)
Loans Receivable:
Quantity | loan	16
Principal balance	$ 351,463	$ 352,159
Book Value	347,675	348,375
Allowance for loan losses	(6,851)	(6,344)
Book Value	$ 340,824	342,031
Weighted Average Contractual Interest Rate / Rate of Return	7.60%
Weighted Average Annualized Effective Interest Rate / Rate of Return	7.50%
Other Investments:
Quantity | preferredEquityInvestment	7
Principal Balance	$ 56,034	56,805
Book Value	$ 56,250	57,055
Weighted Average Contractual Interest Rate / Rate of Return	11.00%
Weighted Average Annualized Effective Interest Rate / Rate of Return	10.90%
Total Quantity | investment	23
Total Principal Balance	$ 407,497
Total Book Value	$ 397,074	399,086
Total Weighted Average Contractual Interest Rate / Rate of Return	8.00%
Total Weighted Average Annualized Effective Interest Rate / Rate of Return	8.00%
Mortgage
Loans Receivable:
Quantity | loan	2
Principal balance	$ 309,000
Book Value	$ 309,000	309,000
Weighted Average Contractual Interest Rate / Rate of Return	7.70%
Weighted Average Annualized Effective Interest Rate / Rate of Return	7.70%
Construction
Loans Receivable:
Quantity | loan	1
Principal balance	$ 3,343
Book Value	$ 3,345	3,347
Weighted Average Contractual Interest Rate / Rate of Return	8.00%
Weighted Average Annualized Effective Interest Rate / Rate of Return	7.80%
Other
Loans Receivable:
Quantity | loan	13
Principal balance	$ 39,120
Book Value	$ 35,330	$ 36,028
Weighted Average Contractual Interest Rate / Rate of Return	6.80%
Weighted Average Annualized Effective Interest Rate / Rate of Return	6.10%