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Share-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2012
Share-Based Compensation [Abstract]  
Schedule Of Selected Financial Impact Of Share-Based Compensation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For the Years Ended December 31,

 

 

 
2012

 

 
2011

 

 
2010

 

 

 

 

 

 

 

 

 

 

 

Share-based compensation expense included in cost of revenue

$
1,770

 

$
1,439

 

$
1,290

 

Share-based compensation expense included in operating expenses

 
14,152

 

 
14,057

 

 
11,972

 

Total share-based compensation expense included in consolidated statements of income

 
15,922

 

 
15,496

 

 
13,262

 

Income tax benefit resulting from share-based compensation arrangements

 
(5,403

)

 
(5,245

)

 
(4,597

)

Net impact of share-based compensation on net income

$
10,519

 

$
10,251

 

$
8,665

 

 

Schedule Of Weighted Averages Of The Assumptions Used In Estimating The Fair Value Of Stock Option Awards

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For the Years Ended December 31,

 

 

 

 
2012 

 

 

 
2011 

 

 

 
2010 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Expected stock price volatility

 

 
34 

%

 

 
33 

%

 

 
31 

%

Expected term, in years

 

 
4.6 

 

 

 
4.8 

 

 

 
4.9 

 

Risk-free interest rate

 

 
0.8 

%

 

 
2.3 

%

 

 
2.3 

%

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted average fair value of options granted

 

$
26.38 

 

 

$
24.86 

 

 

$
16.56 

 

 

Schedule Of Stock Option Activity

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Number of Options (000)

 

Weighted Average Exercise Price

 

Weighted Average Remaining Contractual Term

 

Aggregate Intrinsic Value ($000)

 

 

 

 

 

 

 

 

 

 

Outstanding as of December 31, 2011
3,114 

 

$
43.31 

 

 

 

 

 

Granted
302 

 

 
87.76 

 

 

 

 

 

Exercised
(728)

 

 
27.62 

 

 

 

 

 

Forfeited
(19)

 

 
62.06 

 

 

 

 

 

Expired
(2)

 

 
15.00 

 

 

 

 

 

Outstanding as of December 31, 2012
2,667 

 

$
52.50 

 
3.3 

 

$
107,481 

 

 

 

 

 

 

 

 

 

 

Fully vested as of December 31, 2012
1,564 

 

$
41.22 

 
2.2 

 

$
80,652 

 

 

 

 

 

 

 

 

 

 

Fully vested and expected to vest as of December 31, 2012
2,612 

 

$
52.19 

 
3.2 

 

$
106,118 

 

Schedule Of Restricted Stock Unit Activity

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Number of Units (000)

 

Weighted Average Grant-Date Fair Value

 

 

 

 

 

 

 

 

 

Nonvested as of December 31, 2011

 

 

 

 

 
448 

 

$
54.66 

Granted

 

 

 

 

 
104 

 

 
87.89 

Vested

 

 

 

 

 
(151)

 

 
50.57 

Forfeited

 

 

 

 

 
(16)

 

 
59.60 

Nonvested as of December 31, 2012

 

 

 

 

 
385 

 

$
65.07 

 

 

 

 

 

 

 

 

 

 

Expected to vest as of December 31, 2012

 

 

 

 

 
363 

 

$
64.85 

 

Schedule Of Deferred Stock Unit Activity

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Number of Units (000)

 

Weighted Average Grant-Date Fair Value

 

 

 

 

 

 

 

 

 

Outstanding as of December 31, 2011

 

 

 

 

 
122 

 

$
39.91 

Granted

 

 

 

 

 
4 

 

 
88.49 

Settled

 

 

 

 

 
(5)

 

 
47.79 

Outstanding as of December 31, 2012

 

 

 

 

 
121 

 

$
41.28 

 

 

 

 

 

 

 

 

 

 

Vested as of December 31, 2012

 

 

 

 

 
119 

 

$
40.28 

 

 

 

 

 

 

 

 

 

 

Fully vested and expected to vest as of December 31, 2012

 

 

 

 

 
121 

 

$
41.28