Intangible Assets - Additional Information (Detail) - USD ($)		1 Months Ended	12 Months Ended
	Jul. 08, 2014	Dec. 31, 2015	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Extended period to commercialize certain products			2 years
Net revenue from products			$ 5,000,000
License agreement expiry date			Jan. 05, 2017
Milestone payment to be made upon incremental revenue		$ 500,000	$ 500,000
Amount of revenue recognized for milestone			2,000,000
Maximum milestone payment to be made		$ 5,000,000	$ 5,000,000
Royalty payable as a percentage of net revenue		6.50%	6.50%
Royalty payable as a percentage of sublicensing revenue		50.00%	50.00%
Milestone payments			$ 0
Clarient [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets		$ 84,000,000	84,000,000
Customer Relationships [Member] | Clarient [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets		$ 81,000,000	81,000,000
Intangible asset amortization period		15 years
Customer Relationships [Member] | Path Logic [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets	$ 1,930,000
Intangible asset amortization period	13 years
Trade Names [Member] | Clarient [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets		$ 3,000,000	$ 3,000,000
Intangible asset amortization period		2 years