Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2018

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 months ended March 31, 2018 and 2017 (in thousands):

	Three Months Ended
	March 31,
	2018		2017
Research and development	$	1,759	$	1,218
General and administrative		1,291		1,570
Total stock-based compensation expense	$	3,050	$	2,788