SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Notes and Loans Receivable (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable [Roll Forward]
Beginning balance	$ 41,589
Ending balance	85,084	$ 41,589
Notes Receivable
Financing Receivable [Roll Forward]
Beginning balance	52,389	37,001
Fundings	6,688	11,500
Accrued interest paid-in-kind	5,298	3,074
Proceeds from repayments	(3,188)	0
Changes in instrument-specific credit risk	0	0
Other factors	(638)	814
Ending balance	60,549	52,389
Loans Receivable
Financing Receivable [Roll Forward]
Beginning balance	0	0
Fundings	250,000	0
Accrued interest paid-in-kind	4,135	0
Proceeds from repayments	(25,443)	0
Changes in instrument-specific credit risk	0	0
Other factors	939	0
Ending balance	229,631	0
Notes and Loans Receivable
Financing Receivable [Roll Forward]
Beginning balance	52,389	37,001
Fundings	256,688	11,500
Accrued interest paid-in-kind	9,433	3,074
Proceeds from repayments	(28,631)	0
Changes in instrument-specific credit risk	0	0
Other factors	301	814
Ending balance	$ 290,180	$ 52,389