PROPERTY AND EQUIPMENT (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 209,653		$ 205,639
Less: accumulated depreciation	93,342		84,490
Property and equipment, net	116,311		121,149
Depreciation expense	8,975	$ 13,061
Infusion pumps
Property, Plant and Equipment [Line Items]
Property and equipment, gross	31,419		31,678
Equipment, furniture and other
Property, Plant and Equipment [Line Items]
Property and equipment, gross	50,281		47,886
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	87,711		87,483
Computer software, purchased and internally developed
Property, Plant and Equipment [Line Items]
Property and equipment, gross	28,331		27,799
Assets under development
Property, Plant and Equipment [Line Items]
Property and equipment, gross	11,911		$ 10,793
Depreciation expense in cost of revenue
Property, Plant and Equipment [Line Items]
Depreciation expense	1,377	1,742
Depreciation expense in operating expenses
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 7,598	$ 11,319