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Business and Property Management Agreements with RMR (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) employee	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) employee jointVenture_arrangement agreement	Sep. 30, 2023 USD ($)
Related person transactions
Number of employees | employee	0		0
Property management and construction supervision fees	$ 1,787	$ 2,209	$ 5,411	$ 6,403
Property management and construction supervision fees paid	4,007	3,671	11,448	10,765
RMR
Related person transactions
Business management fees incurred	11,249	3,692	19,255	10,283
Reversal of estimated incentive fees	6,934		$ 6,934
Period of actual amount of incentive fees			3 years
Property management and construction supervision fees	1,358	1,363	$ 4,342	4,226
Party transaction property management and construction supervision fees capitalized	$ 429	$ 846	$ 1,069	$ 2,177
Number joint venture arrangements | jointVenture_arrangement			2
Senior Living Communities | RMR
Related person transactions
Number of consecutive renewal terms of agreement | agreement			2

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Number of persons employed by the Entity

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- Definition

Represents the business management fees incurred pursuant to business management agreement with related parties.

+ References

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- Definition

Incentive Fee Expense (Reversal)

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Number Joint Venture Arrangements

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- Definition

Represents the property management and construction supervision fees incurred pursuant to business and property management agreements with related parties.

+ References

No definition available.

+ Details

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- Definition

Property Management And Construction Supervision Fees, Capitalized

+ References

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- Definition

Represents the property management and construction supervision fees paid to related parties.

+ References

No definition available.

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- Definition

Represents the number of consecutive renewal terms of agreement that the entity has the option to renew.

+ References

No definition available.

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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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c)(2)(i))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c)(2)(ii))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(g)(3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

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