MORTGAGE LOANS RECEIVABLE - Schedule of Mortgage Loans Receivable (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)
Financing Receivable [Roll Forward]
Beginning balance	$ 41,589
Ending balance	85,084
Mortgage Loans Receivable
Financing Receivable [Roll Forward]
Beginning balance	0
Genesis acquisition (Note 3)	1,505,635
Initial loan advances	60,125
Construction holdbacks and draws	12,856
Paydowns and payoffs	(60,867)
Changes in instrument-specific credit risk	0
Other factors	(1,987)
Ending balance	$ 1,515,762