SEGMENT INFORMATION - Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Segment Reporting Information
Total Assets	$ 25,347,189	$ 24,725,433
Percentage of consolidated assets	100.00%	100.00%
Operating Segments | OM&R
Segment Reporting Information
Total Assets	$ 6,879,036	$ 6,943,446
Percentage of consolidated assets	27.10%	28.10%
Operating Segments | NNN
Segment Reporting Information
Total Assets	$ 4,022,354	$ 4,120,691
Percentage of consolidated assets	15.90%	16.70%
Operating Segments | SHOP
Segment Reporting Information
Total Assets	$ 12,854,462	$ 12,864,029
Percentage of consolidated assets	50.70%	52.00%
Non-Segment
Segment Reporting Information
Total Assets	$ 1,591,337	$ 797,267
Percentage of consolidated assets	6.30%	3.20%