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Stock-Based Compensation (Tables)
 6 Months Ended
Jun. 30, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Stock-Based Compensation Expense

Total stock-based compensation expense was recognized in our Condensed Consolidated Statements of Operations as follows (in thousands):

 

 

Three months ended June 30,

 

 

Six months ended June 30,

 

 

2017

 

 

2016

 

 

2017

 

 

2016

 

Cost of goods sold

$

538

 

 

$

402

 

 

$

1,092

 

 

$

790

 

Research and development

 

4,620

 

 

 

3,125

 

 

 

9,217

 

 

 

6,324

 

General and administrative

 

2,941

 

 

 

2,737

 

 

 

5,974

 

 

 

5,513

 

Total stock-based compensation

$

8,099

 

 

$

6,264

 

 

$

16,283

 

 

$

12,627