Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation Plans and Awards (Tables)

v3.8.0.1
Stock-based Compensation Plans and Awards (Tables)
 3 Months Ended
Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of assumptions used for determining the per-share fair value of shares granted under the ESPP The following assumptions for the Black-Scholes option pricing model were used to determine the per-share fair value of shares to be granted under the ESPP:

 
Three months ended March 31,
 
2017
 
2018
Expected life (in years)
0.5

 
0.5

Risk-free interest rate
0.44 - 0.65%

 
1.13 - 1.83%

Expected volatility
39 - 52%

 
45 - 57%

Expected dividend yield
0
%
 
0
%
The per-share fair value of each stock option was determined on the grant date using the Black-Scholes option pricing model using the following assumptions:

 
Three months ended March 31,
 
2017
 
2018
Expected life (in years)
5.93 - 6.05

 
6.25

Risk-free interest rate
2.03 - 2.18%

 
2.64
%
Expected volatility
61
%
 
60
%
Expected dividend yield
0
%
 
0
%
Schedule of stock-based compensation expenses related to all employee and non-employee stock-based awards Stock-based compensation expense related to all employee and non-employee stock-based awards was as follows:
 
 
Three months ended 
 March 31,
 
2017
 
2018
 
(in thousands)
Stock-based compensation expense
 

 
 

Cost of revenue—Other
$
815

 
$
742

Cost of revenue—Ticketing service
29

 
—

Product development
7,915

 
6,417

Sales and marketing
13,496

 
11,817

General and administrative
7,363

 
7,460

Total stock-based compensation expense
$
29,618

 
$
26,436