Fair Value (Tables)

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Summary of Assets Measured at Fair Value on Recurring Basis

The following are the major categories of assets measured at fair value on a recurring basis as of September 30, 2017 and December 31, 2016, using quoted prices in active markets for identical assets (Level 1); significant other observable inputs (Level 2); and significant unobservable inputs (Level 3):

	September 30, 2017
	(In thousands)
	(unaudited)
Description	QuotedPrices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Assets measured at fair value
Cash and cash equivalents	$	24,483	$	—	$	—	$	24,483
Restricted cash		6,386		—		—		6,386
Total Assets measured at fair value	$	30,869	$	—	$	—	$	30,869
Liabilities measured at fair value
Contingent consideration	$	—	$	—	$	18,404	$	18,404
Warrant liabilities		—		—		31,156	$	31,156
Total liabilities measured at fair value	$	—	$	—	$	49,560	$	49,560

	December 31, 2016
	(In thousands)
Description	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Assets measured at fair value
Cash and cash equivalents	$	24,165	$	—	$	—	$	24,165
Restricted cash		10,425		—		—		10,425
Total Assets measured at fair value	$	34,590	$	—	$	—	$	34,590
Liabilities measured at fair value
Contingent consideration	$	—	$	—	$	22,800	$	22,800
Total liabilities measured at fair value	$	—	$	—	$	22,800	$	22,800

Quantitative Information about Inputs and Valuation Methodologies Used for Fair Value Measurements of Contingent Consideration Classified in Level 3

The following table presents quantitative information about the inputs and valuation methodologies used for the Company’s fair value measurements of Contingent consideration classified in Level 3 as of December 31, 2016 and September 30, 2017:

	Valuation Methodology	Significant Unobservable Input	WeightedAverage (range, if applicable)
Contingent  consideration	Probabilityweighted income approach	Milestone dates	2017 to2020
		Discount rate Probabilityofoccurrence	7.5% to 11.75% 100%

Change in Fair Value for All Assets and Liabilities Using Unobservable Level 3 Inputs As Determined By Level 3 Inputs

The following table summarizes the change in fair value, as determined by Level 3 inputs, for all assets and liabilities using unobservable Level 3 inputs for the nine months ended September 30, 2017:

	Fair Value Measurementat Reporting Date (Level 3)
	(In thousands)
	(unaudited)
	Common stock warrants			Contingent consideration
Balance at December 31, 2016	$	—		$	22,800
Issuance of common stock in exchange for contingent    consideration		—			(5,227	)
Issuance of warrants, net of financing costs		8,715			—
Payment of contingent consideration		—			(395	)
Exercise of warrants		(2,772	)		—
Change in fair value		25,213			1,226
Balance at September 30, 2017		31,156			18,404
Current portion		—			6,958
Long-term portion		31,156			11,446
Balance at September 30, 2017	$	31,156		$	18,404