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Stock-Based Compensation (Tables)
 6 Months Ended
Jun. 30, 2013
Share-based Arrangements with Employees and Nonemployees [Abstract]  
Stock-Based Compensation Expense And Related Income Tax Benefit Recognized
The following table summarizes the stock-based compensation expense and related income tax benefit recognized in the Consolidated Statements of Income (in thousands):
 
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
2013
 
2012
 
2013
 
2012
Stock options:
 
 
 
 
 
 
 
Pre-tax compensation expense
$
66

 
$
84

 
$
132

 
$
186

Tax benefit
26

 
34

 
52

 
75

Stock option expense, net of tax
$
40

 
$
50

 
$
80

 
$
111

Restricted stock:
 
 
 
 
 
 
 
Pre-tax compensation expense
$
1,223

 
$
1,027

 
$
2,458

 
$
2,047

Tax benefit
486

 
416

 
977

 
829

Restricted stock expense, net of tax
$
737

 
$
611

 
$
1,481

 
$
1,218
Schedule Of Share-Based Compensation Stock Options Activity
The following table summarizes stock option activity for the six months ended June 30, 2013:
 
 
Number of
Options
(in thousands)
 
Weighted
Average
Exercise
Price ($)
 
Weighted
Average
Remaining
Contractual
Term
(Years)
 
Aggregate
Intrinsic Value
(in thousands)
Outstanding at beginning of period
800

 
$
17.92

 

 

Options granted
—

 
$
—

 

 

Options exercised
(41
)
 
$
17.93

 

 

Options forfeited
(5
)
 
$
20.39

 

 

Options expired
—

 
$
—

 

 

Outstanding at end of period
754

 
$
17.90

 
3.54
 
$
4,727

Exercisable at end of period
571

 
$
17.60

 
2.75
 
$
3,750
Schedule Of Share-Based Compensation Restricted Stock Activity
The following table summarizes restricted stock activity for the six months ended June 30, 2013:
 
 
Number of
Restricted
Shares (in
thousands)
 
Weighted
Average Grant
Date Fair
Value ($)
Nonvested at beginning of period
815

 
$
20.69

Shares granted
—

 
$
—

Shares vested
(21
)
 
$
23.27

Shares forfeited
(1
)
 
$
20.64

Nonvested at end of period
793

 
$
20.62
Schedule Of Share Based Payment Award Restricted Stock Valuation Assumptions
The present value of estimated future dividends for the 2012 grant was calculated using the following assumptions:
Dividends per share (quarterly amounts)
 
 
 
 
 
 
$
0.05

Risk-free interest rate
 
 
 
 
 
 
0.9
%