Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v3.2.0.727
Stock-Based Compensation (Tables)
 6 Months Ended
Jun. 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 June 30,
 
Six Months Ended June 30,
 
2015
 
2014
 
2015
 
2014
Stock options
$
913

 
$
862

 
$
1,829

 
$
1,743

Restricted stock units
2,080

 
1,769

 
4,110

 
3,465

Total
$
2,993

 
$
2,631

 
$
5,939

 
$
5,208

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 June 30,
 
Six Months Ended June 30,
 
2015
 
2014
 
2015
 
2014
Expected option term
7.46 years
 
7.82 years
 
4.60 years
 
4.71 years
Expected stock price volatility
29.54%
 
28.63%
 
26.53%
 
27.67%
Risk-free interest rate
1.95%
 
2.29%
 
1.20%
 
1.21%
Expected annual dividend yield
1.04%
 
1.33%
 
1.26%
 
1.33%
Weighted average grant date fair value
$17.81
 
$12.77
 
$10.31
 
$8.76
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 June 30,
 
Six Months Ended June 30,
 
2015
 
2014
 
2015
 
2014
Vesting period
2.65 years
 
3.56 years
 
3.82 years
 
3.83 years
Expected annual dividend yield
1.05%
 
1.34%
 
1.14%
 
1.33%
Estimated average grant date fair value per restricted stock unit
$55.80
 
$39.91
 
$51.01
 
$39.08