SEGMENT INFORMATION - Capital Expenditures (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information
Total capital expenditures	$ 143,066	$ 116,744	$ 561,177	$ 205,225
Operating Segments | SHOP
Segment Reporting Information
Total capital expenditures	55,540	51,156	198,943	99,873
Operating Segments | Office Operations
Segment Reporting Information
Total capital expenditures	85,752	56,667	359,826	88,213
Operating Segments | Triple-Net Leased Properties
Segment Reporting Information
Total capital expenditures	$ 1,774	$ 8,921	$ 2,408	$ 17,139