Senior Living Community Management Agreements - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue
Revenue	$ 1,410,308	$ 1,283,566	$ 1,383,212
Senior Living Communities
Disaggregation of Revenue
Revenue	1,151,908	1,022,826	974,623
Residents fees and services
Disaggregation of Revenue
Revenue	1,151,908	1,022,826	974,623
Residents fees and services | Basic housing and support services | Senior Living Communities
Disaggregation of Revenue
Revenue	915,528	806,500	750,644
Residents fees and services | Medicare and Medicaid programs | Senior Living Communities
Disaggregation of Revenue
Revenue	89,613	82,106	98,273
Residents fees and services | Private pay and other third party payer SNF services | Senior Living Communities
Disaggregation of Revenue
Revenue	$ 146,767	$ 134,220	$ 125,706