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Share-Based Compensation and Non-Qualified Deferred Compensation Plan (Tables)
3 Months Ended
Mar. 31, 2014
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 March 31, 2014:
 
 
Options Outstanding and Exercisable (1) (2)
Range of Exercise Prices
Number
 
Weighted
Average Price
$30.06-$41.16
207,036

 
$
33.46

$43.90-$45.53
151,837

 
44.94

$48.02-$64.75
158,086

 
56.96

Total options
516,959

 
$
44.02

 
(1)
As of March 31, 2014, all options outstanding are also exercisable.
(2)
The aggregate intrinsic value of options outstanding and exercisable at March 31, 2014 was $12.1 million. The aggregate intrinsic values were calculated as the excess, if any, between our closing share price of $67.34 per share on March 31, 2014 and the strike price of the underlying award.
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The following assumptions were used for the reload options granted during the three months ended March 31, 2014:
 
Three Months Ended March 31,
 
2014
Weighted average fair value of options granted
$3.55 - $8.17
Expected volatility
22.6% - 23.2%
Risk-free interest rate
0.1% - 1.1%
Expected dividend yield
3.5%
Expected life
6 months - 4 years
Summary Of Share Incentive Plans
The following table summarizes activity under our share incentive plans for the three months ended March 31, 2014:
 
 
Options
Outstanding
 
Weighted
Average
Exercise
Price
 
Nonvested
Share
Awards
Outstanding
 
Weighted
Average
Grant  Price
Total options and nonvested share awards outstanding at December 31, 2013
634,361

 
$
41.59

 
831,298

 
$
59.77

Granted
84,452

 
64.75

 
286,484

 
65.22

Exercised/vested
(180,168
)
 
42.98

 
(281,828
)
 
55.11

Forfeited
(21,686
)
 
62.32

 
(2,847
)
 
64.03

Total options and nonvested share awards outstanding at March 31, 2014
516,959

 
$
44.02

 
833,107

 
$
63.20

Summary of non-qualified deferred compensation share award activity
The following table summarizes the eligible share award activity as recorded in temporary equity for the three months ended March 31, 2014:
(in thousands)
 
 
Balance at December 31, 2013
 
$
47,180

Change in classification
 
(606
)
Change in redemption value
 
11,352

Diversification of share awards
 
(2,428
)
Balance at March 31, 2014
 
$
55,498