Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2019

Disclosure of Compensation Related Costs, Share-based 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,
	2019		2018		2019		2018
Cost of goods sold	$	1,086	$	1,163	$	2,089	$	2,294
Research and development	15,430		12,990		31,870		25,084
General and administrative	8,006		6,506		15,948		13,230
Total stock-based compensation	$	24,522	$	20,659	$	49,907	$	40,608