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Senior Living Community Management Agreements - Narrative (Details) $ in Thousands			3 Months Ended		9 Months Ended
	Nov. 01, 2022 USD ($)	Jun. 09, 2021 USD ($) unit community	Sep. 30, 2022 USD ($) community property	Sep. 30, 2021 USD ($) unit community	Sep. 30, 2022 USD ($) community property	Sep. 30, 2021 USD ($) unit community	Dec. 31, 2021 community unit
Number of properties (property) | property			379		379
Affiliated Entity
Lease income			$ 380	$ 399	$ 1,147	$ 1,194
Five Star
Property management agreement expense			9,477	11,220	27,380	37,997
Related party transaction capitalized amount			876	702	2,363	2,251
Five Star | Rehabilitation Services
Expenses from transactions with related party			1,590	1,508	5,242	9,579
Five Star | Operating Expense
Property management agreement expense			8,601	10,518
Related party transaction capitalized amount					25,017	35,746
Five Star Management | Subsequent Event
Termination fees paid	$ 350
Senior Living Communities | Third Party Investor
Property management agreement expense			5,108	$ 1,678	15,434	$ 1,678
Number of communities managed | community						69
Senior Living Communities | Five Star
Number of properties (property) | community		120
Related party transactions, termination percentage		10.00%
Percentage target EBITDA of new management agreement not earned		80.00%
Senior Living Communities | Five Star | Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations
Number of properties (property) | community		108
Number of property units (units) | unit		7,500		4,800		4,800	7,340
Amounts of transaction		$ 682,000	$ 220	$ 3,123	$ 1,665	$ 15,037
Number of properties transitioned | community			107	69	107	69	107
Senior Living Communities | Five Star | Closed
Number of properties (property) | community							108
Number of property units (units) | unit		1,500
Senior Living Communities | Affiliated Entity | Five Star
Number of communities managed | community					120	159

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Amount of lease income from operating, direct financing, and sales-type leases. Includes, but is not limited to, variable lease payments, interest income, profit (loss) recognized at commencement, and lease payments paid and payable to lessor.

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