Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v2.4.0.8
Stock-Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2013
Share-based Compensation [Abstract]  
Summary 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,
 
 
2013
 
2012
 
2013
 
2012
Stock options
 
$
873

 
$
607

 
$
2,583

 
$
2,384

Restricted stock units
 
1,377

 
797

 
3,949

 
3,323

Total
 
$
2,250

 
$
1,404

 
$
6,532

 
$
5,707

Schedule Of Weighted Average Assumptions
The following table presents the weighted average assumptions for stock options granted in the period:
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2013
 
2012
 
2013
 
2012
Expected term
4.49 years
 
4.51 years
 
4.71 years
 
4.78 years
Expected stock price volatility
26.87%
 
31.95%
 
30.63%
 
32.20%
Risk-free interest rate
1.01%
 
0.47%
 
0.70%
 
0.88%
Expected dividend yield
1.38%
 
1.63%
 
1.62%
 
1.80%
Weighted average grant date fair value
$13.04
 
$12.37
 
$12.34
 
$11.57
Schedule Of Weighted Average Assumptions For Restricted Stock Units
The following table presents the weighted average assumptions for restricted stock units granted in the period:
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2013
 
2012
 
2013
 
2012
Vesting period
4.01 years
 
4.00 years
 
3.93 years
 
3.86 years
Expected dividend yield
1.38%
 
1.63%
 
1.59%
 
1.77%
Estimated average grant date fair value per restricted stock unit
$60.27
 
$50.46
 
$51.97
 
$46.57