Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v3.3.0.814
Stock-Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2015
Share-based Compensation [Abstract]  
Schedule Of Stock-Based Compensation Expense
Stock-based compensation expense consisted of the following (in thousands):
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2015
 
2014
 
2015
 
2014
Stock options
$
898

 
$
909

 
$
2,727

 
$
2,652

Restricted stock units
1,894

 
2,019

 
6,004

 
5,484

Total
$
2,792

 
$
2,928

 
$
8,731

 
$
8,136

Schedule Of Weighted Average Assumptions For Employee Stock Options
The following table presents the weighted average assumptions for stock options granted in the periods:
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2015
 
2014
 
2015
 
2014
Expected option term
4.37 years
 
4.41 years
 
4.60 years
 
4.70 years
Expected stock price volatility
29.37%
 
27.24%
 
26.56%
 
27.65%
Risk-free interest rate
1.27%
 
1.32%
 
1.20%
 
1.22%
Expected annual dividend yield
0.84%
 
1.49%
 
1.26%
 
1.34%
Weighted average grant date fair value
$17.12
 
$7.84
 
$10.36
 
$8.72
Schedule Of Weighted Average Assumptions For Restricted Stock Units
The following table presents the weighted average assumptions for restricted stock units granted in the periods:
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2015
 
2014
 
2015
 
2014
Vesting period
4.00 years
 
4.01 years
 
3.82 years
 
3.83 years
Expected annual dividend yield
0.93%
 
1.49%
 
1.14%
 
1.33%
Estimated average grant date fair value per restricted stock unit
$62.53
 
$35.47
 
$51.09
 
$39.02