SEGMENT INFORMATION - Operating Income of Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information [Line Items]
Net service revenue	$ 399,262	$ 364,661
Cost of service, excluding depreciation and amortization	238,309	216,329
General and administrative expenses	121,400	118,800
Depreciation and amortization	3,593	4,417
Operating expenses	363,257	339,496
Operating income	36,005	25,165
Home Health
Segment Reporting Information [Line Items]
Net service revenue	284,100	267,600
Cost of service, excluding depreciation and amortization	174,400	163,000
General and administrative expenses	68,000	68,000
Depreciation and amortization	800	900
Operating expenses	243,200	231,900
Operating income	40,900	35,700
Hospice
Segment Reporting Information [Line Items]
Net service revenue	97,300	83,600
Cost of service, excluding depreciation and amortization	50,100	42,900
General and administrative expenses	20,000	18,000
Depreciation and amortization	200	300
Operating expenses	70,300	61,200
Operating income	27,000	22,400
Personal Care
Segment Reporting Information [Line Items]
Net service revenue	17,900	13,500
Cost of service, excluding depreciation and amortization	13,800	10,400
General and administrative expenses	3,200	3,300
Depreciation and amortization	100	0
Operating expenses	17,100	13,700
Operating income	800	(200)
Other
Segment Reporting Information [Line Items]
Net service revenue	0	0
Cost of service, excluding depreciation and amortization	0	0
General and administrative expenses	30,200	29,500
Depreciation and amortization	2,500	3,200
Operating expenses	32,700	32,700
Operating income	$ (32,700)	$ (32,700)