Stock-based Awards (Tables)

9 Months Ended

Sep. 30, 2019

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

Summary of stock option activity

A summary of the Company’s stock option activity for the nine months ended September 30, 2019 is as follows:

	Number of Options		Weighted-Average Exercise Price		Weighted-Average Remaining Contractual Life
					(in years)
Outstanding at December 31, 2018	14,114,651		$	12.32	7.0
Granted	2,115,973		6.95
Exercised	(363,609	)	7.84
Forfeited/expired	(4,983,186	)	12.72
Outstanding at September 30, 2019	10,883,829		$	11.25	5.6

Schedule of activity in connection with restricted stock

Activity in connection with restricted stock units is as follows for the nine months ended September 30, 2019:

	Number of Shares		Weighted- Average Grant Date Fair Value
Non-vested — December 31, 2018	5,375,963		$	11.01
Granted	5,018,710		6.53
Vested	(2,252,523	)	9.54
Forfeited	(1,756,835	)	9.79
Non-vested — September 30, 2019	6,385,315		$	8.34

Schedule of stock-based compensation cost relating to stock options and restricted stock awards

The Company recorded stock-based compensation cost relating to stock options and restricted stock units in the following categories on the accompanying condensed consolidated statements of comprehensive loss (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
Cost of revenue	$	549	$	469	$	1,601	$	1,210
Sales and marketing	2,697		3,852		10,885		10,522
Technology and development	1,615		2,829		7,024		7,880
General and administrative	2,330		3,097		11,872		8,704
Total stock-based compensation expense	7,191		10,247		31,382		28,316
Amount capitalized to internal software use	431		551		1,409		1,358
Total stock-based compensation cost	$	7,622	$	10,798	$	32,791	$	29,674