SEGMENT INFORMATION - Operating Income of Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Net service revenue	$ 557,988	$ 553,485	$ 1,661,135	$ 1,654,795
Other operating income	0	(4)	0	13,300
Cost of service, excluding depreciation and amortization	322,227	310,294	943,258	916,188
General and administrative expenses	188,400	178,900	560,600	526,400
Depreciation and amortization	5,477	7,487	19,705	21,763
Investment impairment	3,009	0	3,009	0
Operating expenses	519,057	496,709	1,526,601	1,464,339
Operating income (loss)	38,931	56,772	134,534	203,756
Home Health [Member]
Segment Reporting Information [Line Items]
Net service revenue	337,200	338,600	1,012,800	1,016,500
Other operating income		0		7,300
Cost of service, excluding depreciation and amortization	195,300	190,100	573,300	563,500
General and administrative expenses	88,300	82,400	259,300	243,800
Depreciation and amortization	900	1,100	3,300	3,300
Investment impairment	0		0
Operating expenses	284,500	273,600	835,900	810,600
Operating income (loss)	52,700	65,000	176,900	213,200
Hospice [Member]
Segment Reporting Information [Line Items]
Net service revenue	198,700	197,500	590,200	586,900
Other operating income		0		6,000
Cost of service, excluding depreciation and amortization	109,400	107,600	323,200	314,400
General and administrative expenses	49,100	49,500	152,100	144,400
Depreciation and amortization	500	700	1,700	2,000
Investment impairment	0		0
Operating expenses	159,000	157,800	477,000	460,800
Operating income (loss)	39,700	39,700	113,200	132,100
Personal Care [Member]
Segment Reporting Information [Line Items]
Net service revenue	16,600	15,900	45,500	49,900
Other operating income		0		0
Cost of service, excluding depreciation and amortization	12,200	11,700	34,500	37,400
General and administrative expenses	2,400	2,600	6,800	8,800
Depreciation and amortization	0	100	100	200
Investment impairment	0		0
Operating expenses	14,600	14,400	41,400	46,400
Operating income (loss)	2,000	1,500	4,100	3,500
High Acuity Care
Segment Reporting Information [Line Items]
Net service revenue	5,500	1,500	12,600	1,500
Other operating income		0		0
Cost of service, excluding depreciation and amortization	5,300	900	12,300	900
General and administrative expenses	8,800	3,900	24,700	3,900
Depreciation and amortization	800	500	2,400	500
Investment impairment	3,000		3,000
Operating expenses	17,900	5,300	42,400	5,300
Operating income (loss)	(12,400)	(3,800)	(29,800)	(3,800)
Other
Segment Reporting Information [Line Items]
Net service revenue	0	0	0	0
Other operating income		0		0
Cost of service, excluding depreciation and amortization	0	0	0	0
General and administrative expenses	39,800	40,500	117,700	125,500
Depreciation and amortization	3,300	5,100	12,200	15,800
Investment impairment	0		0
Operating expenses	43,100	45,600	129,900	141,300
Operating income (loss)	$ (43,100)	$ (45,600)	$ (129,900)	$ (141,300)