DISCONTINUED OPERATIONS (Allowance for Doubtful Accounts) (Details) - Genetic Assays and Platforms and Patient Testing - Discontinued operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Disposal Group, Including Discontinued Operations, Allowance for Doubtful Accounts [Roll Forward]
Beginning Balance	$ 14,542	$ 9,173	$ 14,664	$ 7,927
Additions	0	1,198	0	2,730
Deductions	(4,080)	(1,965)	(4,202)	(2,251)
Ending Balance	$ 10,462	$ 8,406	$ 10,462	$ 8,406