Summary of Significant Accounting Policies - Reconciliation of Assets and Liabilities Measured at Fair Value Using Significant Observable Inputs Level 3 (Detail) $ in Thousands	3 Months Ended
Mar. 31, 2016 USD ($)
Contingent Purchase Consideration
Liabilities
Beginning Balance	$ 51,000
Changes in fair value	1,300
Ending Balance	52,300
Common Stock Warrant Liabilities
Liabilities
Beginning Balance	6,196
Changes in fair value	(4,527)
Ending Balance	$ 1,669

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount of increase (decrease) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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- Definition

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

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