Equity and Equity Compensation Plans (Tables)

3 Months Ended

Mar. 31, 2020

Share-based Payment Arrangement [Abstract]

Schedule of Reserved Shares of Common Stock

We have reserved shares of common stock for future issuance under our ESPP as follows:

	Three Months Ended March 31, 2020	Year Ended December 31, 2019
Shares available for issuance at beginning of period	3,330,271	2,890,973
Shares issued during the period	—	490,717
Total shares available for future issuance at end of period	3,330,271	2,400,256

We have reserved shares of common stock for future issuance under our 2017 EIP as follows:

	March 31, 2020	December 31, 2019
Stock options issued and outstanding	7,028,719	7,792,181
Restricted stock units issued and outstanding	4,681,875	5,023,412
Shares available for future equity grants	11,899,400	7,100,499
Total shares reserved for future issuance	23,609,994	19,916,092

Schedule of Stock Option Activity

The following table summarizes activity for stock options for the three months ended March 31, 2020:

	Number of Options	Weighted- Average Exercise Price		Weighted-Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value
Outstanding as of January 1, 2020	7,792,181	$	7.00	5.28	$	111,122
Options exercised	(738,398)	5.30
Options forfeited	(20,798)	9.01
Options canceled	(4,266)	10.80
Outstanding as of March 31, 2020	7,028,719	$	7.17	5.12	$	59,786
Options exercisable as of March 31, 2020	6,472,555	$	6.54	4.93	$	57,443

Schedule of Nonvested Restricted Stock Units Activity

The following table summarizes activity for restricted stock units for the three months ended March 31, 2020:

	Restricted Stock Units		Weighted Average Grant-Date Fair Value
Outstanding as of January 1, 2020	5,023,412		$	18.69
Granted	141,413		27.06
Vested	(320,440	)	19.36
Forfeited or canceled	(162,510	)	19.29
Outstanding as of March 31, 2020	4,681,875		$	18.87

Schedule of Allocation of Share-based Compensation Costs

The following table details, for each period indicated, (i) our stock-based compensation, net of forfeitures, and the amount capitalized in internally developed software and (ii) changes to the probability of achieving outstanding performance-based equity awards, each as included in our consolidated statements of operations:

	Three Months Ended March 31,
	2020		2019
Cost of revenue	$	1,638	$	1,465
Technology and development	3,648		2,656
Marketing	375		286
General and administrative	1,550		1,999
Total stock-based compensation	$	7,211	$	6,406