PROPERTY AND EQUIPMENT (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 207,031		$ 211,820
Less: accumulated depreciation	81,245		78,622
Property and equipment, net	125,786		133,198
Depreciation expense	13,061	$ 5,853
Infusion pumps
Property, Plant and Equipment [Line Items]
Property and equipment, gross	33,386		30,416
Equipment, furniture and other
Property, Plant and Equipment [Line Items]
Property and equipment, gross	50,988		51,454
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	82,140		80,916
Computer software, purchased and internally developed
Property, Plant and Equipment [Line Items]
Property and equipment, gross	35,079		34,884
Assets under development
Property, Plant and Equipment [Line Items]
Property and equipment, gross	5,438		$ 14,150
Depreciation expense in cost of revenue
Property, Plant and Equipment [Line Items]
Depreciation expense	1,742	780
Depreciation expense in operating expenses
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 11,319	$ 5,073