REAL ESTATE INVESTMENTS - Schedule of Gross Carrying Value of Operating Properties (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Long Lived Assets Held-for-sale [Line Items]
Total	$ 3,649,875	$ 3,617,240
Discontinued Operations
Long Lived Assets Held-for-sale [Line Items]
Total	52,664	0
Continuing Operations
Long Lived Assets Held-for-sale [Line Items]
Land	398,536	403,998
Building and improvements	2,725,168	2,760,357
Tenant improvements	473,507	452,885
Total	$ 3,597,211	$ 3,617,240