BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Accounting Policies [Abstract]
Fixed lease income - operating leases	$ 56,673	$ 43,840
Variable lease income - operating leases	2,523	1,969
Revenue from contracts with customers	1,118	839
Total revenue	$ 60,314	$ 46,648