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Share-Based Compensation and Non-Qualified Deferred Compensation Plan (Tables)
9 Months Ended
Sep. 30, 2013
Share-based Compensation [Abstract]  
Schedule Of Share Based Compensation Shares Authorized Under Stock Option Plans By Exercise Price Range And Intrinsic Value
The following table summarizes outstanding share options and exercisable options at September 30, 2013:
 
 
Outstanding Options (1)
 
Exercisable Options (1)
Range of Exercise Prices
Number
 
Weighted
Average Price
 
Number
 
Weighted
Average Price
$30.06-$41.16
228,012

 
$
33.14

 
130,107

 
$
35.46

$42.90-$43.94
108,947

 
43.43

 
108,947

 
43.43

$45.53-$62.32
298,609

 
47.39

 
298,609

 
47.39

Total options
635,568

 
$
41.60

 
537,663

 
$
43.70

 
(1)
The aggregate intrinsic value of outstanding and exercisable options at September 30, 2013 was $12.6 million and $9.6 million, respectively. The aggregate intrinsic values were calculated as the excess, if any, between our closing share price of $61.44 per share on September 30, 2013 and the strike price of the underlying award.
Summary Of Share Incentive Plans
The following table summarizes activity under our share incentive plans for the nine months ended September 30, 2013:
 
 
Options
Outstanding
 
Weighted
Average
Exercise
Price
 
Nonvested
Share
Awards
Outstanding
 
Weighted
Average
Grant  Price
Total options and nonvested share awards outstanding at December 31, 2012
838,754

 
$
42.36

 
862,253

 
$
52.64

Granted

 

 
349,565

 
69.59

Exercised/vested
(182,664
)
 
41.52

 
(296,373
)
 
50.43

Forfeited
(20,522
)
 
73.32

 
(65,076
)
 
57.90

Total options and nonvested share awards outstanding at September 30, 2013
635,568

 
$
41.60

 
850,369

 
$
59.98

Summary of non-qualified deferred compensation share award activity
The following table summarizes the share award activity since the effective date of the amended and restated Plan through September 30, 2013:
(in thousands)
 
 
Balance at December 31, 2012
 
$

Change in classification
 
34,517

Change in redemption value
 
12,928

Diversification of share awards
 
(353
)
Balance at September 30, 2013
 
$
47,092