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Stock Compensation - Options (Tables)
 12 Months Ended
Dec. 31, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of stock option activity
The following is a summary of the Company’s stock option activity and related information for the twelve month periods ended December 31:
 
2012
 
2011
 
2010
 
Options
 
Weighted-Average
Exercise Prices Per
Share
 
Options
 
Weighted-Average
Exercise Prices Per
Share
 
Options
 
Weighted-Average
Exercise Prices Per
Share
Outstanding beginning of year
66,693

 
$
27.32

 
271,858

 
$
25.97

 
354,294

 
$
25.18

Granted
—

 
—

 
—

 
—

 
—

 
—

Exercised
(13,641
)
 
26.52

 
(205,165
)
 
(25.57
)
 
(78,894
)
 
(22.47
)
Forfeited/Cancelled
(46,746
)
 
27.48

 
—

 
—

 
(3,542
)
 
(24.71
)
Outstanding end of year
6,306

 
$
27.90

 
66,693

 
$
27.32

 
271,858

 
$
25.97

Options exercisable end of year
6,306

 
$
27.90

 
66,693

 
$
27.32

 
271,858

 
$
25.97