DISCONTINUED OPERATIONS (Allowance for Doubtful Accounts) (Details) - Genetic Assays and Platforms and Patient Testing - Included in assets held for sale - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Allowance for doubtful accounts, beginning balance	$ 14,664	$ 7,927
Provision	0	9,447
Write Offs	(14,664)	(2,710)
Allowance for doubtful accounts, ending balance	$ 0	$ 14,664