Description of Business - Narrative (Details) - community		12 Months Ended
	Jul. 01, 2021	Dec. 31, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of communities leased		295
Current Property Ownership Status
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of senior living communities		673
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of senior living communities		673
Number of communities owned		346
Number of communities leased		295
Number of communities managed by third party		32
Securities Purchase Agreement | HCA Healthcare, Inc. | Health Care Services
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Percentage of ownership sold in transaction	80.00%
Percentage of ownership after transaction	20.00%	20.00%