FAIR VALUE MEASUREMENT - Schedule of Loss on Impairment of Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Movement In Purchase Option Value [Roll Forward]
Loss on impairment and write-off of assets	$ (10,420)	$ (4,361)	$ (1,759)
Real Estate Loan 1
Movement In Purchase Option Value [Roll Forward]
Purchase option carrying amount, beginning balance	0	1,600
Loss on impairment and write-off of assets		(1,600)
Purchase option carrying amount, ending balance		0	1,600
Real Estate Loan 2
Movement In Purchase Option Value [Roll Forward]
Purchase option carrying amount, beginning balance	0	2,761
Loss on impairment and write-off of assets		(2,761)
Purchase option carrying amount, ending balance		0	2,761
Real Estate Loan 3
Movement In Purchase Option Value [Roll Forward]
Purchase option carrying amount, beginning balance	$ 2,800	2,800
Loss on impairment and write-off of assets		0	(1,800)
Purchase option carrying amount, ending balance		$ 2,800	$ 2,800