SEGMENT AND RELATED INFORMATION - Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
SEGMENT AND RELATED INFORMATION
Net revenues	$ 236,419	$ 233,995
Material costs	78,377	76,356
Personnel expenses	86,711	86,108
Depreciation & amortization	8,773	9,330
Segment income from operations	(1,979)	623
Purchase of property, plant and equipment	6,897	4,388
Patient Care
SEGMENT AND RELATED INFORMATION
Net revenues	190,601	188,507
Material costs	59,150	57,899
Personnel expenses	73,709	73,613
Other expenses	37,433	35,004
Depreciation & amortization	4,552	4,898
Segment income from operations	15,757	17,093
Patient Care \| Operating segments
SEGMENT AND RELATED INFORMATION
Net revenues	190,601	188,507
Material costs	53,355	52,175
Patient Care \| Intersegments
SEGMENT AND RELATED INFORMATION
Material costs	5,795	5,724
Products & Services
SEGMENT AND RELATED INFORMATION
Net revenues	90,697	88,010
Material costs	64,106	60,979
Personnel expenses	13,002	12,495
Other expenses	6,948	6,155
Depreciation & amortization	2,543	2,502
Segment income from operations	4,098	5,879
Products & Services \| Operating segments
SEGMENT AND RELATED INFORMATION
Net revenues	45,818	45,488
Material costs	25,022	24,181
Products & Services \| Intersegments
SEGMENT AND RELATED INFORMATION
Net revenues	44,879	42,522
Material costs	$ 39,084	$ 36,798

Cost of material used for good produced and service rendered.

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