NATURE OF OPERATIONS, CONSOLIDATION AND PRESENTATION OF FINANCIAL STATEMENTS - Narrative (Details) $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2022 USD ($) care_center numberOfJointVentures state	Mar. 31, 2022 USD ($)	Sep. 30, 2021	Jun. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) care_center numberOfJointVentures state	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Number of states with facilities | state	36				36
Minimum ownership percentage for controlling interest (percent)	50.00%				50.00%
Maximum ownership percentage for equity method investment (percent)	50.00%				50.00%
Equity method investment, aggregate cost	$ 41,500				$ 41,500		$ 48,100
Maximum ownership percentage for cost method investment (percent)	20.00%				20.00%
Purchase of cost method investment		$ 15,000			$ 15,000	$ 0
Investment Owned, at Cost	$ 20,000				20,000		5,000
Cash and cash equivalents	17,956				17,956		42,694
Patient accounts receivable	302,470				302,470		274,961
Other current assets	37,839				37,839		25,598
Total current assets	388,780				388,780		356,684
Property and equipment	17,248				17,248		18,435
Operating lease right of use assets	105,843				105,843		101,257
Goodwill	1,285,455				1,285,455		1,196,090
Intangible assets	103,678				103,678		111,190
Other assets	81,123				81,123		73,023
Total assets	1,982,127				1,982,127		1,856,968
Accounts payable	45,527				45,527		38,217
Payroll and employee benefits	145,073				145,073		141,001
Accrued expenses	130,100				130,100		150,836
Current portion of long-term obligations	12,628				12,628		12,995
Total current liabilities	367,200				367,200		374,282
Other long-term obligations	13,873				13,873		4,979
Total liabilities	912,517				912,517		880,645
Gain on equity method investments					0	31,092
Proceeds from sale of noncontrolling interest					3,941	$ 0
Gain Related to Sale of Noncontrolling Interest, Net of Tax	2,900
Medalogix [Member]
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Gain on equity method investments				$ 31,100
30% Interest Sold in Two Care Centers
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Proceeds from sale of noncontrolling interest	3,900
Variable Interest Entity, Primary Beneficiary
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Cash and cash equivalents	13,000				13,000		3,100
Patient accounts receivable	5,400				5,400		2,400
Other current assets	900				900		100
Total current assets	19,300				19,300		5,600
Property and equipment	200				200		100
Operating lease right of use assets	100				100		0
Goodwill	8,500				8,500		0
Intangible assets	400				400		0
Other assets	100				100		0
Total assets	28,600				28,600		5,700
Accounts payable	300				300		0
Payroll and employee benefits	600				600		300
Accrued expenses	5,100				5,100		3,400
Current portion of long-term obligations	200				200		800
Total current liabilities	6,200				6,200		4,500
Other long-term obligations	0				0		0
Total liabilities	$ 6,200				$ 6,200		$ 4,500
Home Health [Member]
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Number of owned and operated care centers | care_center	353				353
Home Health [Member] | Evolution Health
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Goodwill	$ 59,600				$ 59,600
Hospice [Member]
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Number of owned and operated care centers | care_center	172				172
Personal Care [Member]
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Number of owned and operated care centers | care_center	14				14
High Acuity Care
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Number of Joint Ventures | numberOfJointVentures	8				8
Revenue from Contract with Customer [Member] | Product Concentration Risk | Medicare Revenue [Member]
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Percent of net services revenue	74.00%		75.00%		74.00%	75.00%