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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of gain (loss) on sale or disposal of an equity method investment.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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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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Number Of Board Members Appointed

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INVESTMENT IN UNCONSOLIDATED ENTITIES - Narrative (Details) ft² in Thousands, $ in Thousands	1 Months Ended		3 Months Ended	12 Months Ended
	May 31, 2023 USD ($)	Dec. 31, 2022 USD ($) ft²	Dec. 31, 2022 USD ($) ft²	Dec. 31, 2023 USD ($) board_member	Dec. 31, 2022 USD ($) ft²	Dec. 31, 2021 USD ($)	Apr. 30, 2023
Equity method investments
Non-cash gain on sale				$ 33,500
Income recognized				13,626	$ 28,500	$ 4,973
Proceeds from sale of equity method investments	$ 50,100
Goodwill		$ 1,044,415	$ 1,044,415	1,045,176	$ 1,044,415
Outpatient Medical And Research Portfolio
Equity method investments
Goodwill				$ 463,796
Atria
Equity method investments
Ownership interests				34.00%
Number of board of directors members appointed \| board_member				2
Non-cash gain on sale			$ 26,100
Income recognized		$ 11,700
Ardent
Equity method investments
Ownership interests				7.50%			9.80%
Number of board of directors members appointed \| board_member				1
Equity Method Investment, Ownership Percentage, Disposed Of	0.24
Glennis Combined SaaS Company
Equity method investments
Ownership interests		10.00%	10.00%		10.00%
Ventas Fund
Equity method investments
Revenue from contracts with customers					$ 9,900
Area of Real Estate Property \| ft²		326	326		326
Management Service
Equity method investments
Revenue from contracts with customers				$ 14,700	$ 14,500	$ 12,400