PROPERTY AND EQUIPMENT (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 212,839		$ 212,839		$ 205,639
Less: accumulated depreciation	102,177		102,177		84,490
Property and equipment, net	110,662		110,662		121,149
Depreciation expense	8,958	$ 11,159	17,935	$ 24,220
Depreciation expense in cost of revenue
Property, Plant and Equipment [Line Items]
Depreciation expense	1,369	1,747	2,747	3,489
Depreciation expense in operating expenses
Property, Plant and Equipment [Line Items]
Depreciation expense	7,589	$ 9,412	15,188	$ 20,731
Infusion pumps
Property, Plant and Equipment [Line Items]
Property and equipment, gross	31,165		31,165		31,678
Equipment, furniture and other
Property, Plant and Equipment [Line Items]
Property and equipment, gross	52,605		52,605		47,886
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	91,448		91,448		87,483
Computer software, purchased and internally developed
Property, Plant and Equipment [Line Items]
Property and equipment, gross	29,086		29,086		27,799
Assets under development
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 8,535		$ 8,535		$ 10,793