DESCRIPTION OF BUSINESS - Schedule of Reportable Business Segments and Non-Segment Assets (Details) $ in Thousands	3 Months Ended
Mar. 31, 2025 USD ($) segment property	Mar. 31, 2024 USD ($)
Real estate properties
NOI \| $	$ 569,287	$ 503,884
Percentage of Total NOI	100.00%
Number of real estate properties \| property	1,372
Number of Reportable Segments \| segment	3
Operating Segments
Real estate properties
Number of real estate properties \| property	1,372
Operating Segments \| Senior housing operating portfolio (SHOP)
Real estate properties
Number of real estate properties \| property	654
Operating Segments \| Senior housing operating portfolio (SHOP) \| Net Operating Income Benchmark \| Customer Concentration Risk
Real estate properties
Concentration percentage	46.50%
Operating Segments \| OM&R
Real estate properties
Number of real estate properties \| property	426
Operating Segments \| OM&R \| Net Operating Income Benchmark \| Customer Concentration Risk
Real estate properties
Concentration percentage	25.70%
Operating Segments \| NNN
Real estate properties
Number of real estate properties \| property	292
Operating Segments \| NNN \| Net Operating Income Benchmark \| Customer Concentration Risk
Real estate properties
Concentration percentage	26.80%
Operating Segments \| Senior housing operating portfolio (SHOP)
Real estate properties
NOI \| $	$ 264,504
Operating Segments \| OM&R
Real estate properties
NOI \| $	146,042	145,570
Operating Segments \| NNN
Real estate properties
NOI \| $	152,586	151,630
Operating Segments \| SHOP
Real estate properties
NOI \| $		203,483
Non-Segment
Real estate properties
NOI \| $	$ 6,155	$ 3,201
Number of real estate properties \| property	34
Non-Segment \| Non-Segment
Real estate properties
Percentage of Total NOI	1.10%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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