Senior Living Community Management Agreements - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue
Revenue	$ 1,283,566	$ 1,383,212	$ 1,632,026
Senior Living Communities
Disaggregation of Revenue
Revenue	1,022,826	974,623	1,204,811
Residents fees and services
Disaggregation of Revenue
Revenue	1,022,826	974,623	1,204,811
Residents fees and services \| Basic housing and support services \| Senior Living Communities
Disaggregation of Revenue
Revenue	806,500	750,644	856,687
Residents fees and services \| Medicare and Medicaid programs \| Senior Living Communities
Disaggregation of Revenue
Revenue	82,106	98,273	173,878
Residents fees and services \| Private pay and other third party payer SNF services \| Senior Living Communities
Disaggregation of Revenue
Revenue	$ 134,220	$ 125,706	$ 174,246

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Section 50
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-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9031-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Section 50
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-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9038-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599

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-Publisher FASB
-Name Accounting Standards Codification
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
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-Publisher FASB
-Name Accounting Standards Codification
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-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045

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-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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-URI https://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856

+ Details