SEGMENT INFORMATION - Operating Income of Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information [Line Items]
Net service revenue	$ 537,144	$ 491,685
Other operating income	8,701	0
Cost of service, excluding depreciation and amortization	297,203	285,737
General and administrative expenses	172,200	156,800
Depreciation and amortization	7,555	5,338
Operating expenses	476,996	447,815
Operating income (loss)	68,849	43,870
Home Health [Member]
Segment Reporting Information [Line Items]
Net service revenue	328,600	303,600
Other operating income	5,000
Cost of service, excluding depreciation and amortization	183,000	179,800
General and administrative expenses	80,100	75,700
Depreciation and amortization	1,000	1,000
Operating expenses	264,100	256,500
Operating income (loss)	69,500	47,100
Hospice [Member]
Segment Reporting Information [Line Items]
Net service revenue	191,500	169,400
Other operating income	3,700
Cost of service, excluding depreciation and amortization	101,600	91,800
General and administrative expenses	46,500	38,700
Depreciation and amortization	600	600
Operating expenses	148,700	131,100
Operating income (loss)	46,500	38,300
Personal Care [Member]
Segment Reporting Information [Line Items]
Net service revenue	17,000	18,700
Other operating income	0
Cost of service, excluding depreciation and amortization	12,600	14,100
General and administrative expenses	3,000	3,400
Depreciation and amortization	100	0
Operating expenses	15,700	17,500
Operating income (loss)	1,300	1,200
Other
Segment Reporting Information [Line Items]
Net service revenue	0	0
Other operating income	0
Cost of service, excluding depreciation and amortization	0	0
General and administrative expenses	42,600	39,000
Depreciation and amortization	5,900	3,700
Operating expenses	48,500	42,700
Operating income (loss)	$ (48,500)	$ (42,700)