The number of real estate properties owned as of the balance sheet date.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 275
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-Name Accounting Standards Codification
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-Paragraph 2
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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
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-Name Accounting Standards Codification
-Section 55
-Paragraph 47
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-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The net result for the period of deducting interest and other income, property-level operating expenses, and office building services costs from total revenues.

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No definition available.

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Net Operating Income, Percent

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DESCRIPTION OF BUSINESS - Schedule of Reportable Business Segments and Non-Segment Assets (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2026 USD ($) property	Sep. 30, 2025 USD ($)	Sep. 30, 2026 USD ($) property segment	Sep. 30, 2025 USD ($)
Real estate properties
NOI \| $	$ 723,474	$ 614,897	$ 2,059,760	$ 1,772,310
Percentage of Total NOI			100.00%
Number of real estate properties	1,454		1,454
Number of Reportable Segments \| segment			3
Operating Segments
Real estate properties
Number of real estate properties	1,454		1,454
Operating Segments \| Senior housing operating portfolio (SHOP)
Real estate properties
Number of real estate properties	848		848
Operating Segments \| OM&R
Real estate properties
Number of real estate properties	407		407
Operating Segments \| NNN
Real estate properties
Number of real estate properties	199		199
Operating Segments \| SHOP
Real estate properties
NOI \| $	$ 429,970	302,296	$ 1,207,927	853,212
Percentage of Total NOI			58.60%
Operating Segments \| OM&R
Real estate properties
NOI \| $	153,433	147,745	$ 455,568	440,273
Percentage of Total NOI			22.10%
Operating Segments \| NNN
Real estate properties
NOI \| $	126,283	157,038	$ 368,167	458,360
Percentage of Total NOI			17.90%
Non-Segment
Real estate properties
NOI \| $	$ 13,788	$ 7,818	$ 28,098	$ 20,465
Percentage of Total NOI			1.40%
Number of real estate properties	37		37