SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue by Payor Class (Details)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Revenue by payor class as a percentage of total net service revenue	100.00%	100.00%
Home Health Medicare [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Revenue by payor class as a percentage of total net service revenue	41.00%	41.00%
Home Health Non-Medicare - Episodic Based [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Revenue by payor class as a percentage of total net service revenue	7.00%	6.00%
Home Health Non-Medicare - Non-Episodic Based [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Revenue by payor class as a percentage of total net service revenue	13.00%	14.00%
Hospice Medicare [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Revenue by payor class as a percentage of total net service revenue	34.00%	33.00%
Hospice Non-Medicare [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Revenue by payor class as a percentage of total net service revenue	2.00%	2.00%
Personal Care [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Revenue by payor class as a percentage of total net service revenue	3.00%	4.00%