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 assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

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

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Cash received for the sale of real estate that is not part of an investing activity during the current period.

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Equity Method Investment, Ownership Percentage By Other Owners

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Vacant Land Parcels Sold

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DISPOSITIONS AND IMPAIRMENTS - 2020 Dispositions Activity (Details) $ in Thousands	1 Months Ended		12 Months Ended
	Oct. 31, 2020 USD ($)	Mar. 31, 2020 USD ($) property	Dec. 31, 2022 USD ($) property	Dec. 31, 2021 USD ($) property	Dec. 31, 2020 USD ($) property senior_housing	Oct. 30, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on real estate dispositions					$ 262,200
Number of real estate properties \| property			1,300
Proceeds from real estate disposals			$ 112,926	$ 840,438	1,044,357
The Fund
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on real estate dispositions		$ 225,100
Proceeds from real estate disposals		$ 620,000
Ownership interests		21.00%
Research and Innovation Center \| GIC JV Project
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on real estate dispositions	$ 13,700
Ownership interests						50.00%
Research and Innovation Center \| GIC JV Project \| R&I JV
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership interest						45.00%
Triple-net leased properties
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of real estate properties \| property			326
Dispositions
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on real estate dispositions			$ 7,800	218,800	$ 23,400
Proceeds from real estate disposals			$ 115,100	$ 859,700
land parcels sold \| senior_housing					1
Proceeds from sale of real estate					$ 249,600
Dispositions \| The Fund
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of real estate properties \| property		6
Dispositions \| The Fund \| Same Campus
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of real estate properties \| property		2
Dispositions \| Medical Office Buildings
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of real estate properties \| property			2	34	4
Dispositions \| SHOP
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of real estate properties \| property				23	4
Dispositions \| Triple-net leased properties
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of real estate properties \| property			3	8	22