SEGMENT INFORMATION - Capital Expenditures (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information
Total capital expenditures	$ 112,656	$ 418,111
Operating Segments | SHOP
Segment Reporting Information
Total capital expenditures	68,132	143,403
Operating Segments | Office Operations
Segment Reporting Information
Total capital expenditures	40,804	274,074
Operating Segments | Triple-Net Leased Properties
Segment Reporting Information
Total capital expenditures	$ 3,720	$ 634