XML 28 R42.htm IDEA: XBRL DOCUMENT v2.4.0.8
Share-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2013
Share-based Compensation [Abstract]  
Assumptions used for the grants
The following table illustrates the valuation assumptions used for the 2013, 2012 and 2011 grants:
 
2013
 
2012
 
2011
Expected volatility
51%
 
51 - 52%
 
49 - 50%
Weighted-average expected volatility
51%
 
52%
 
49%
Expected dividend yield
1.6%
 
1.6 - 1.7%
 
1.7 - 1.8%
Weighted-average expected dividend yield
1.6%
 
1.7%
 
1.8%
Expected term, in years
6
 
0.2 - 6
 
6
Risk-free interest rate
0.9 - 1.1%
 
0.1 - 1.1%
 
1.3 - 2.5%
Stock option activity
The following table summarizes the activity during the year ended December 31, 2013 for stock option awards:
 
Shares
 
Weighted-Average Exercise Price
Outstanding at beginning of year
1,191,421

 
$
24.16

Granted
142,755

 
46.96

Exercised
(445,266
)
 
18.67

Forfeited
(11,588
)
 
42.34

Outstanding at end of year
877,322

 
$
30.42

Exercisable at end of year
601,747

 
$
23.89
Nonvested restricted shares activity
The following table summarizes the activity during the year ended December 31, 2013, for nonvested restricted share awards:
 
Shares
 
Weighted-Average Grant Date Fair Value
Nonvested at beginning of year
142,354

 
$
33.40

Granted
34,508

 
48.04

Vested
(24,866
)
 
26.06

Forfeited
(1,053
)
 
40.02

Nonvested at end of year
150,943

 
$
37.89