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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property & Equipment and Patent Costs (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2016 USD ($) item	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Property and equipment
Assets under construction	$ 6,536		$ 8,038
Leasehold improvements	$ 13,308		7,118
Software Capitalization Policy
Software development stages | item	3
Patent Costs and Intangible Assets
Accrued liabilities	$ 26,104		22,253
Amortization of intangible assets	$ 150
MDx Health | Licensed Intellectual Property
Patent Costs and Intangible Assets
Estimated useful life	10 years
Intangible asset, net	$ 1,600		1,800
Accrued liabilities	1,000		$ 1,800
Amortization of intangible assets	$ 200	$ 0
Laboratory equipment | Minimum
Property and equipment
Estimated Useful Life	3 years
Laboratory equipment | Maximum
Property and equipment
Estimated Useful Life	5 years
Computer Equipment and Computer Software
Property and equipment
Estimated Useful Life	3 years
Leasehold Improvements
Property and equipment
Assets under construction	$ 100
Expected cost to complete construction of project	$ 200
Furniture and fixtures
Property and equipment
Estimated Useful Life	3 years
Buildings
Property and equipment
Estimated Useful Life	30 years
Software Development
Property and equipment
Assets under construction	$ 1,600
Machinery and Equipment
Property and equipment
Assets under construction	$ 4,800

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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