SEGMENT INFORMATION - Capital Expenditures (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting Information
Payments to Acquire Productive Assets	$ 170,216	$ 112,656
Operating Segments | SHOP
Segment Reporting Information
Payments to Acquire Productive Assets	106,540	68,132
Operating Segments | Outpatient Medical and Research Portfolio
Segment Reporting Information
Payments to Acquire Productive Assets	62,770	40,804
Operating Segments | Triple-Net Leased Properties
Segment Reporting Information
Payments to Acquire Productive Assets	$ 906	$ 3,720