Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation Plans and Awards (Tables)

v3.2.0.727
Stock-based Compensation Plans and Awards (Tables)
 6 Months Ended
Jun. 30, 2015
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 per-share fair value of shares to be granted under the ESPP is determined on the first day of the offering period using the Black-Scholes option pricing model using the following assumptions:
Three months ended June 30,
 
Six months ended June 30,
 
2014

2015
 
2014
 
2015
Expected life (in years)
0.5

 
0.5

 
0.5

 
0.5

Risk-free interest rate
0.08
%
 
0.07
%
 
0.08
%
 
0.05% - 0.07%

Expected volatility
42
%
 
42
%
 
42
%
 
42
%
Expected dividend yield
0
%
 
0
%
 
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 
 June 30,
 
Six months ended 
 June 30,
 
2014
 
2015
 
2014
 
2015
 
(in thousands)
(unaudited)
 
(in thousands)
(unaudited)
Stock-based compensation expense
 

 
 

 
 
 
 
Cost of revenue - Other
$
1,032

 
$
1,406

 
$
1,913

 
$
2,613

Product development
4,426

 
5,354

 
7,887

 
9,959

Sales and marketing
9,922

 
13,327

 
18,233

 
24,671

General and administrative
5,233

 
7,397

 
9,972

 
13,436

Total stock-based compensation expense
$
20,613

 
$
27,484

 
$
38,005

 
$
50,679