XML 37 R19.htm IDEA: XBRL DOCUMENT v2.4.0.6
Stock-Based Compensation Plans (Tables)
6 Months Ended
Jun. 30, 2012
Stock-Based Compensation Plans [Abstract]  
Weighted-Average Assumptions For The Employee Stock Option Plan

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended June 30,

 

Six Months Ended June 30,

 

 

2012

2011

 

2012

2011

Dividend Yield

 

 

2.63%

 

2.68%

 

 

2.62%

 

2.71%

Expected volatility

 

 

44.51%

 

40.80%

 

 

44.29%

 

40.59%

Risk-free interest rate

 

 

0.72%

 

1.62%

 

 

0.87%

 

1.93%

Expected term of options (years)

 

 

 4.04 

 

 4.05 

 

 

 4.04 

 

 4.05 

Weighted-avg. grant date fair value

 

$

 5.91 

$

 8.13 

 

$

 6.44 

$

 8.24