NOVEL CORONAVIRUS PANDEMIC "COVID-19" (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	9 Months Ended		12 Months Ended	15 Months Ended
	Apr. 30, 2020	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	Jun. 30, 2021	Oct. 31, 2021	Dec. 31, 2020	Mar. 27, 2020
NOVEL CORONAVIRUS PANDEMIC "COVID-19" [Line Items]
Funding for Healthcare Providers, Including Hospitals									$ 175,000,000
Funding Immediately Distributed to Healthcare Providers Based on Their 2019 Medicare Fee-For-Service Reimbursements									$ 30,000,000
Funding Received From CARES Act	$ 100,000
CARES Act Provider Relief Funds Utilized						$ 46,600
CARES Act Provider Relief Fund Amounts Repaid							$ 58,300
CARES Act Provider Relief Funds Utilized By Unconsolidated Joint Ventures						$ 1,300
CARES Act Provider Relief Fund Amounts Repaid By Unconsolidated Joint Ventures							600
Total CARES Act Provider Relief Funds Received					$ 106,800
CARES Act Interest Repaid to Government							$ 200
Payroll and employee benefits			$ 145,073		141,001
Extension of Temporary Suspension of Sequestration, Revenue Impact		$ 9,000	13,000	$ 27,000
COVID-19 Deferral of Social Security
NOVEL CORONAVIRUS PANDEMIC "COVID-19" [Line Items]
CARES Act Deferral of Employer Share Social Security Tax								$ 55,000
Payroll and employee benefits			$ 27,000
Payment Of Deferred Social Security Tax Under CARES Act					$ 27,000
AseraCare Hospice [Member]
NOVEL CORONAVIRUS PANDEMIC "COVID-19" [Line Items]
Funding Received From CARES Act	6,000
Equity Method Investments [Member]
NOVEL CORONAVIRUS PANDEMIC "COVID-19" [Line Items]
Funding Received From CARES Act	$ 2,000