Number Of Properties Acquired

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Number Of Properties Included In Joint Venture Agreement

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Number Of Real Estate Properties Closed

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Number Of States

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Number Of Third Party Institutional Investors

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Number Of Unconsolidated Joint Ventures

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Percentage Of Equity Method Investment Sold

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Properties Held For Sale, Sales Price

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This element represents the aggregate sales price excluding closing costs, of real estate properties sold by the entity.

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Real Estate Property Fair Value

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No definition available.

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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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 other assets.

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

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The number of states the entity operates in as of the balance sheet date.

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The cash inflow from the sale of an investment interest in a joint venture that the reporting entity has not previously accounted for using consolidation or the equity method of accounting.

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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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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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Real Estate Investments - Narrative (Details) $ in Thousands	1 Months Ended				3 Months Ended		9 Months Ended
	Feb. 28, 2023 USD ($) property	Jun. 30, 2022 USD ($)	Jan. 31, 2022 USD ($) property investor	Dec. 31, 2021 USD ($)	Sep. 30, 2023 USD ($) property jointVenture state	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) property jointVenture state	Sep. 30, 2022 USD ($)	Oct. 31, 2023 USD ($) property	Oct. 27, 2023 USD ($) property	Jun. 28, 2022
Real Estate
Number of Properties					376		376
Number of states in which properties are located \| state					36		36
Number of states \| state							5
Number of properties acquired							0
Impairment of assets \| $					$ 1,156	$ 0	$ 18,380	$ 0
Seaport Innovation LLC
Real Estate
Real estate property fair value \| $				$ 1,700,000
Aggregate principal amount of mortgage debt \| $				$ 620,000
Corporate Joint Venture
Real Estate
Number of Properties					11		11
Real estate property fair value \| $			$ 702,500
Aggregate principal amount of mortgage debt \| $			456,600
Corporate Joint Venture \| Seaport Innovation LLC
Real Estate
Number of Properties					1		1
Additional equity joint venture percentage		10.00%		35.00%
DHC Ownership				55.00%	10.00%		10.00%				20.00%
Proceeds from sale of interest in joint venture, net \| $		$ 108,000		$ 378,000
Joint Venture
Real Estate
Number of unconsolidated joint ventures \| jointVenture					2		2
Life Science And Medical Office And Senior Living Communities
Real Estate
Impairment of assets \| $							$ 14,763
Senior Living Communities
Real Estate
Number of Properties					1		1
Number of properties closed					5		5
Impairment of assets \| $							$ 3,617
Senior Living Communities \| Skilled nursing bed license
Real Estate
(Loss) gain on transaction \| $		$ (1,226)	322,468
Life Science and Medical Office
Real Estate
Number of Properties					4		4
Medical Office Building and Life Science Building \| Corporate Joint Venture
Real Estate
Proceeds from sale of interest in joint venture, net \| $			$ 653,300
Number of third party institutional investors \| investor			2
Number of properties included in joint venture agreement			10
Medical Office Building and Life Science Building \| Corporate Joint Venture \| Seaport Innovation LLC
Real Estate
DHC Ownership		10.00%
Medical Office Building and Life Science Building \| Corporate Joint Venture \| Diversified Healthcare Trusts
Real Estate
DHC Ownership			20.00%
Medical Office Building and Life Science Building \| Corporate Joint Venture \| Diversified Healthcare Trusts \| Unrelated Investor One
Real Estate
DHC Ownership			41.00%
Medical Office Building and Life Science Building \| Corporate Joint Venture \| Diversified Healthcare Trusts \| Unrelated Investor Two
Real Estate
DHC Ownership			39.00%
Skilled Nursing Bed Licenses
Real Estate
(Loss) gain on transaction \| $							$ 940
Disposal Group, Held-for-Sale, Not Discontinued Operations
Real Estate
Number of Properties					6		6
Disposal Group, Held-for-Sale, Not Discontinued Operations \| Senior Living Communities
Real Estate
Number of Properties					2		2
Disposal Group, Held-for-Sale, Not Discontinued Operations \| Senior Living Communities \| Subsequent Event
Real Estate
Number of Properties									2
Disposal Group, Held-for-Sale, Not Discontinued Operations \| Life Science and Medical Office
Real Estate
Number of Properties					4		4
Disposal Group, Held-for-Sale, Not Discontinued Operations \| Life Science and Medical Office \| Subsequent Event
Real Estate
Number of Properties									4
Disposal Group, Held-for-Sale, Not Discontinued Operations \| Properties Under Agreement To Sell \| Subsequent Event
Real Estate
Number of Properties										1
Aggregate sales price \| $										$ 1,800
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Life Science And Medical Office And Senior Living Communities \| Subsequent Event
Real Estate
Aggregate sales price \| $									$ 10,830
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Senior Living Communities \| Subsequent Event
Real Estate
Number of Properties									1
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Senior Living Communities \| Pennsylvania and South Carolina
Real Estate
Number of Properties	3				3		3
Sales price \| $	$ 2,800						$ 2,800
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Life Science and Medical Office \| Subsequent Event
Real Estate
Number of Properties									2