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Stock-Based Compensation and Directors Stock Purchase Plan (Tables)
 12 Months Ended
Dec. 31, 2013
Share-based Compensation [Abstract]  
Summary Of The Status Of Nonvested Share Awards
A summary of the status of the Company’s nonvested share awards as of December 31, 2013 and changes during the year then ended is presented below.

  
 

Shares
Weighted Average Grant Date Fair Value
Nonvested at January 1, 2013
926,871

32.97

Granted
421,803

36.67

Vested
(54,922
)
32.72

Forfeited
(28,729
)
33.03

Canceled
(121,268
)
33.64

Nonvested at December 31, 2013
1,143,755

34.27
Schedule Of Share Based Payment Award Stock Options Valuation Assumptions [Table Text Block]
The per share average fair value and the model assumptions for SARs granted in 2013 are shown in the table below.
Weighted per share average fair value at grant date

$6.82

Assumptions:
 
Dividend yield
2.3
%
Volatility
23.2
%
Risk-free interest rate
1.2
%
Expected term
7.3 years
Summary Of Option Activity
A summary of option activity during 2013 is presented below.
(Dollars in thousands, except per share data)
Shares
Weighted Average Exercise Price
Weighted Average Remaining Contractual Term
Aggregate Intrinsic Value
Outstanding at January 1, 2013
807,121

$
30.01

 
 
 
Granted
—

—

 
 
 
Forfeited
—

—

 
 
 
Expired
—

—

 
 
 
Exercised
(354,798
)
29.32

 
 
 
Outstanding, exercisable and vested at December 31, 2013
452,323

$
30.55

0.8
years
$
6,494
Summary Of SAR Activity
A summary of SAR activity during 2013 is presented below.
(Dollars in thousands, except per share data)
Shares
Weighted Average Exercise Price
Weighted Average Remaining Contractual Term
Aggregate Intrinsic Value
Outstanding at January 1, 2013
1,876,523

$
34.35

 
 
 
Granted
224,282

37.17

 
 
 
Forfeited
(2,954
)
33.19

 
 
 
Expired
—

—

 
 
 
Exercised
(339,597
)
34.54

 
 
 
Outstanding at December 31, 2013
1,758,254

$
34.68

4.0
years
$
17,993

Exercisable at December 31, 2013
1,535,329

$
34.32

3.2
years
$
16,267

Vested and expected to vest at December 31, 2013
1,748,676

$
34.66

4.0
years
$
17,919
Schedule Of Additional Information About Stock Options and SARs Exercises
Additional information about stock options and SARs exercised is presented below.
(In thousands)
2013
2012
2011
Intrinsic value of options and SARs exercised
$
6,580

$
7,769

$
6,722

Cash received from options and SARs exercised
$
9,426

$
14,820

$
14,604

Tax benefit realized from options and SARs exercised
$
335

$
1,269

$
847