ACQUISITIONS - Narrative (Details) $ in Thousands											3 Months Ended		6 Months Ended	12 Months Ended
	Oct. 18, 2021 USD ($)	Aug. 01, 2021 USD ($)	Jul. 12, 2021 USD ($)	Jul. 01, 2021 USD ($)	May 01, 2021 USD ($)	Oct. 01, 2020 USD ($)	Jun. 01, 2020 USD ($) care_center	Apr. 18, 2020 USD ($)	Mar. 01, 2020 USD ($)	Jan. 01, 2020 USD ($) care_center	Dec. 31, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Goodwill recorded during period														$ 263,400	$ 274,200
Net service revenue														2,214,112	2,071,519	$ 1,955,633
Operating income (loss)														251,915	219,268	177,472
Depreciation and amortization														$ 30,901	28,802	$ 18,428
Noncompete Agreements [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Weighted-average amortization period														1 year 3 months 18 days
Technology-Based Intangible Assets
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Weighted-average amortization period														6 years 7 months 6 days
Amortizable acquired names [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Weighted-average amortization period														3 months 18 days
Home Health [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Goodwill recorded during period														$ 27,800	3,300
Home Health [Member] | WASHINGTON
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Payments to Acquire Businesses, Gross									$ 3,000
Goodwill recorded during period															2,800
Home Health [Member] | WASHINGTON | Certificate of Need [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquisition, other intangibles recorded									$ 200
Home Health [Member] | KENTUCKY
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Payments to Acquire Businesses, Gross								$ 700
Goodwill recorded during period															500
Home Health [Member] | KENTUCKY | Certificate of Need [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquisition, other intangibles recorded								$ 200
Home Health [Member] | NORTH CAROLINA
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Payments to Acquire Businesses, Gross	$ 4,500
Goodwill recorded during period														4,300
Home Health [Member] | NORTH CAROLINA | Certificate of Need [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquisition, other intangibles recorded	$ 200
Home Health [Member] | NEW YORK
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Payments to Acquire Businesses, Gross			$ 1,500
Goodwill recorded during period														1,400
Home Health [Member] | NEW YORK | Certificate of Need [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquisition, other intangibles recorded			$ 100
Home Health [Member] | Randolph County, North Carolina
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Payments to Acquire Businesses, Gross					$ 2,500
Goodwill recorded during period														2,400
Home Health [Member] | Randolph County, North Carolina | Certificate of Need [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquisition, other intangibles recorded					$ 100
Hospice [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Goodwill recorded during period														1,700	270,900
Personal Care [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Goodwill recorded during period														0	0
High Acuity Care [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Goodwill recorded during period														233,900	0
Asana Hospice [Member] | Hospice [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquisition, number of care centers acquired | care_center										8
Payments to Acquire Businesses, Gross										$ 66,300
Cash Acquired from Acquisition										$ 700
Business Acquisition Working Capital Adjustment												$ 700
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables															4,600
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment															200
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease Right of Use Assets															900
Acquisition, other intangibles recorded															5,600
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets															11,300
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable															(3,200)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Payroll and Employee Benefits															(1,500)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accrued Expenses															(500)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease Liabilities															(900)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities															(6,100)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net															5,200
Goodwill recorded during period															60,400
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net															65,600
Period of time goodwill is expected to be deductible for income tax purposes										15 years
Net service revenue															23,400
Operating income (loss)															(3,300)
Business Combination, Integration Related Costs															2,000
Asana Hospice [Member] | Hospice [Member] | Noncompete Agreements [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquisition, other intangibles recorded										$ 2,300
Weighted-average amortization period										2 years
Asana Hospice [Member] | Hospice [Member] | Medicare Licenses [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquisition, other intangibles recorded										$ 2,000
Asana Hospice [Member] | Hospice [Member] | Acquired Names [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Weighted-average amortization period										2 years
Asana Hospice [Member] | Hospice [Member] | Amortizable acquired names [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquisition, other intangibles recorded										$ 1,300
Asana Hospice [Member] | Hospice [Member] | Amortizable acquired name and noncompete agreements
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Depreciation and amortization															2,600
AseraCare Hospice [Member] | Hospice [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquisition, number of care centers acquired | care_center							44
Payments to Acquire Businesses, Gross							$ 230,400
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables													$ 15,300
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Current Assets Prepaid Expense													700
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment													600
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease Right of Use Assets													5,900
Acquisition, other intangibles recorded													24,300
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets													100
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets													46,900
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable													(6,300)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Payroll and Employee Benefits													(5,900)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accrued Expenses													(11,900)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease Liabilities													(5,400)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities													(29,500)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net													17,400
Goodwill recorded during period													212,200
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net													$ 229,600
Period of time goodwill is expected to be deductible for income tax purposes							15 years
Payments related to tax asset							$ 32,000
Business Acquisition Closing Payment Adjustment						$ 800
Net service revenue															64,500
Operating income (loss)															(8,200)
Business Combination, Integration Related Costs															7,600
AseraCare Hospice [Member] | Hospice [Member] | Maximum [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Business Acquisition Closing Payment Adjustment							1,000
AseraCare Hospice [Member] | Hospice [Member] | Certificates Of Need [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquisition, other intangibles recorded							700
AseraCare Hospice [Member] | Hospice [Member] | Noncompete Agreements [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquisition, other intangibles recorded							$ 9,200
Weighted-average amortization period							1 year 8 months 12 days
AseraCare Hospice [Member] | Hospice [Member] | Medicare Licenses [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquisition, other intangibles recorded							$ 8,700
AseraCare Hospice [Member] | Hospice [Member] | Acquired Names [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Weighted-average amortization period							2 years
AseraCare Hospice [Member] | Hospice [Member] | Amortizable acquired names [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquisition, other intangibles recorded							$ 5,700
AseraCare Hospice [Member] | Hospice [Member] | Amortizable acquired name and noncompete agreements
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Depreciation and amortization															$ 6,000
Visiting Nurse Association | Home Health And Hospice [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Payments to Acquire Businesses, Gross				$ 20,100
Goodwill recorded during period														19,700
Period of time goodwill is expected to be deductible for income tax purposes				15 years
Visiting Nurse Association | Home Health And Hospice [Member] | Medicare Licenses [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquisition, other intangibles recorded				$ 400
Contessa Health | High Acuity Care [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Payments to Acquire Businesses, Gross		$ 240,700
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables											$ 1,500			1,500
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Current Assets Prepaid Expense											300			300
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other											100			100
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment											300			300
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease Right of Use Assets											800			800
Acquisition, other intangibles recorded											54,300			54,300
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets											3,100			3,100
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets											60,400			60,400
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable											(100)			(100)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Payroll and Employee Benefits											(600)			(600)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accrued Expenses											(3,400)			(3,400)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities											(3,100)			(3,100)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt											(900)			(900)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other											(200)			(200)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease Liabilities											(800)			(800)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities											(9,100)			(9,100)
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value											(43,900)			(43,900)
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Equity											(43,900)			(43,900)
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Liabilities And Equity											(53,000)			(53,000)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net											7,400			7,400
Goodwill recorded during period														233,900
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net											241,300			241,300
Business Acquisition Closing Payment Adjustment											$ 600
Net service revenue														3,500
Operating income (loss)														(10,300)
Contessa Health | High Acuity Care [Member] | Unamortizable acquired names [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquisition, other intangibles recorded		28,300
Contessa Health | High Acuity Care [Member] | Noncompete Agreements [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquisition, other intangibles recorded		$ 6,200
Weighted-average amortization period		2 years
Contessa Health | High Acuity Care [Member] | Technology-Based Intangible Assets
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquisition, other intangibles recorded		$ 19,800
Weighted-average amortization period		7 years
Depreciation and amortization														$ 1,200