SEGMENT INFORMATION - Operating Income of Reportable Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Net service revenue	$ 2,223,199	$ 2,214,112	$ 2,071,519
Other operating income	0	13,300	34,372
Cost of service, excluding depreciation and amortization	1,260,425	1,233,356	1,185,369
General and administrative expenses, excluding depreciation and amortization and impairment charge	754,100	711,200	668,200
Depreciation and amortization	24,935	30,901	28,802
Impairment charge	3,009	0	4,152
Operating expenses	2,042,427	1,975,497	1,886,623
Operating income (loss)	180,772	251,915	219,268
Home Health [Member] | Reportable Business Segments [Member]
Segment Reporting Information [Line Items]
Net service revenue	1,355,500	1,353,800	1,249,200
Other operating income		7,300	20,200
Cost of service, excluding depreciation and amortization	769,000	756,600	729,900
General and administrative expenses, excluding depreciation and amortization and impairment charge	348,500	328,500	307,200
Depreciation and amortization	4,000	4,300	3,900
Impairment charge	0		3,400
Operating expenses	1,121,500	1,089,400	1,044,400
Operating income (loss)	234,000	271,700	225,000
Hospice [Member] | Reportable Business Segments [Member]
Segment Reporting Information [Line Items]
Net service revenue	787,800	791,800	750,100
Other operating income		6,000	13,100
Cost of service, excluding depreciation and amortization	426,500	425,200	400,600
General and administrative expenses, excluding depreciation and amortization and impairment charge	203,300	198,400	175,400
Depreciation and amortization	2,300	2,700	2,200
Impairment charge	0		800
Operating expenses	632,100	626,300	579,000
Operating income (loss)	155,700	171,500	184,200
Personal Care [Member]
Segment Reporting Information [Line Items]
Other operating income			1,000
Personal Care [Member] | Reportable Business Segments [Member]
Segment Reporting Information [Line Items]
Net service revenue	61,400	65,000	72,200
Other operating income		0	1,100
Cost of service, excluding depreciation and amortization	46,700	49,100	54,900
General and administrative expenses, excluding depreciation and amortization and impairment charge	9,200	11,200	12,400
Depreciation and amortization	100	200	200
Impairment charge	0		0
Operating expenses	56,000	60,500	67,500
Operating income (loss)	5,400	4,500	5,800
High Acuity Care [Member] | Reportable Business Segments [Member]
Segment Reporting Information [Line Items]
Net service revenue	18,500	3,500	0
Other operating income		0	0
Cost of service, excluding depreciation and amortization	18,200	2,500	0
General and administrative expenses, excluding depreciation and amortization and impairment charge	33,100	10,000	0
Depreciation and amortization	3,300	1,300	0
Impairment charge	3,000		0
Operating expenses	57,600	13,800	0
Operating income (loss)	(39,100)	(10,300)	0
Other [Member] | Other Segment [Member]
Segment Reporting Information [Line Items]
Net service revenue	0	0	0
Other operating income		0	0
Cost of service, excluding depreciation and amortization	0	0	0
General and administrative expenses, excluding depreciation and amortization and impairment charge	160,000	163,100	173,200
Depreciation and amortization	15,200	22,400	22,500
Impairment charge	0		0
Operating expenses	175,200	185,500	195,700
Operating income (loss)	$ (175,200)	$ (185,500)	$ (195,700)