Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-based compensation expense

Total compensation expense by award type and line item in our consolidated financial statements was as follows (in thousands):

	For the Three				For the Nine
	Months Ended				Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
Award Type
Stock options	$	2,139	$	4,291	$	7,009	$	12,452
Performance-based stock options	113		113		334		335
RSUs	1,795		1,304		5,217		3,385
Total	$	4,047	$	5,708	$	12,560	$	16,172
Line Item
Cost of revenue	$	376	$	401	$	1,130	$	1,143
Selling, general and
administrative expenses	3,671		5,307		11,430		15,029
Total	$	4,047	$	5,708	$	12,560	$	16,172

Stock-based awards granted

Stock-based awards were granted as follows (in thousands):

	For the Three		For the Nine
	Months Ended		Months Ended
	September 30,		September 30,
	2018	2017	2018	2017
Stock options	3	84	1,054	961
RSUs	18	37	857	461