Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2016

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock-Based Compensation Expense

The following table shows total stock-based compensation expense included in the condensed consolidated statements of operations for the three and six months ended June 30, 2016 and 2015 (in thousands):

	Three months ended				Six months ended
	June 30,				June 30,
	2016		2015		2016		2015
Research and development	$	1,728	$	1,734	$	3,578	$	3,425
General and administrative		5,471		1,149		6,815		2,411
Total stock-based compensation expense	$	7,199	$	2,883	$	10,393	$	5,836