PROPERTY AND EQUIPMENT (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 202,912		$ 202,912		$ 211,820
Less: accumulated depreciation	85,283		85,283		78,622
Property and equipment, net	117,629		117,629		133,198
Depreciation expense	11,159	$ 5,946	24,220	$ 11,799
Infusion pumps
Property, Plant and Equipment [Line Items]
Property and equipment, gross	33,546		33,546		30,416
Equipment, furniture and other
Property, Plant and Equipment [Line Items]
Property and equipment, gross	48,177		48,177		51,454
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	79,589		79,589		80,916
Computer software, purchased and internally developed
Property, Plant and Equipment [Line Items]
Property and equipment, gross	35,079		35,079		34,884
Assets under development
Property, Plant and Equipment [Line Items]
Property and equipment, gross	6,521		6,521		$ 14,150
Depreciation expense in cost of revenue
Property, Plant and Equipment [Line Items]
Depreciation expense	1,747	691	3,489	1,471
Depreciation expense in operating expenses
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 9,412	$ 5,255	$ 20,731	$ 10,328