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Employee Benefits And Stock-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2012
Share-based Compensation [Abstract]  
Classification Of Stock-Based Compensation
The following table presents the classification of stock-based compensation:
 
Year Ended December 31,
 
2012
 
2011
 
2010
 
(In thousands)
Stock-based compensation:
 
 
 
 
 
     Cost of revenues
$
5,754

 
$
6,655

 
$
4,473

     Sales and marketing
6,091

 
6,062

 
4,419

     Research and development
6,023

 
4,926

 
4,989

     General and administrative
15,494

 
19,928

 
20,136

     Restructuring charges
—

 
5,701

 
2,321

Stock-based compensation for continuing operations
$
33,362

 
$
43,272

 
$
36,338

Discontinued operations
—

 
—

 
15,840

Total stock-based compensation
$
33,362

 
$
43,272

 
$
52,178
Nature Of Total Stock-Based Compensation
The following table presents the nature of the Company’s total stock-based compensation:
 
Year Ended December 31,
 
2012
 
2011
 
2010
 
(In thousands)
RSUs
$
30,807

 
$
33,305

 
$
26,175

ESPP
4,436

 
3,904

 
9,287

Stock options
956

 
3,528

 
7,741

RSUs/Stock options acceleration
—

 
5,701

 
11,023

Capitalization (Included in Property and equipment, net)
(2,837
)
 
(3,166
)
 
(2,048
)
Total stock-based compensation expense
$
33,362

 
$
43,272

 
$
52,178
Weighted-Average Assumptions Used To Estimate Fair Value
The following table sets forth the weighted-average assumptions used to estimate the fair value of the stock options and ESPP awards:

 
Year Ended December 31,
 
2012
 
2011
 
2010
Stock options:
 
 
 
 
 
Volatility
N/A

 
N/A

 
36
%
Risk-free interest rate
N/A

 
N/A

 
1.85
%
Expected term
N/A

 
N/A

 
3.6 years

Dividend yield
N/A

 
N/A

 
Zero

ESPP awards:
 
 
 
 
 
Volatility
26
%
 
26
%
 
35
%
Risk-free interest rate
0.16
%
 
0.30
%
 
0.40
%
Expected term
1.25 years

 
1.25 years

 
1.25 years

Dividend yield
Zero

 
Zero

 
Zero
Summary Of Unvested RSUs Activity
The following table summarizes unvested RSUs activity:
 
Year Ended December 31,
 
2012
 
2011
 
2010
Shares
 
Weighted-Average Grant-Date Fair Value
 
Shares
 
Weighted-Average Grant-Date Fair Value
 
Shares
 
Weighted-Average Grant-Date Fair Value
 
(Shares in thousands)
Unvested at beginning of period
2,345

 
$
27.33

 
2,719

 
$
23.50

 
3,087

 
$
25.39

Granted
1,341

 
38.20

 
1,860

 
34.29

 
2,037

 
25.67

Vested and settled
(881
)
 
27.57

 
(1,411
)
 
27.00

 
(1,349
)
 
26.34

Forfeited
(327
)
 
32.34

 
(1,025
)
 
24.94

 
(1,283
)
 
25.34

Dividend equivalents
—

 
—

 
202

 
—

 
227

 
—

 
2,478

 
$
32.07

 
2,345

 
$
27.33

 
2,719

 
$
23.50
Summary Of Stock Options Activity
The following table summarizes stock options activity:
 
Year Ended December 31,
 
2012
 
2011
 
2010
Shares
 
Weighted- Average Exercise Price
 
Shares
 
Weighted- Average Exercise Price
 
Shares
 
Weighted- Average Exercise Price
 
(In thousands, except average price amounts)
Outstanding at beginning of period
1,120

 
$
28.04

 
3,387

 
$
27.36

 
6,920

 
$
26.64

Granted
—

 
—

 
—

 
—

 
788

 
24.53

Exercised
(660
)
 
27.34

 
(1,473
)
 
26.34

 
(3,094
)
 
23.69

Forfeited
(38
)
 
23.99

 
(749
)
 
26.53

 
(1,188
)
 
28.88

Expired
(1
)
 
8.07

 
(45
)
 
48.33

 
(39
)
 
87.00

Outstanding at end of period
421

 
$
29.49

 
1,120

 
$
28.04

 
3,387

 
$
27.36

Exercisable at end of period
387

 
$
30.17

 
910

 
$
28.83

 
1,812

 
$
28.98

Expected to vest at end of period
32

 
$
21.66

 
 
 
 
 
 
 
 
Weighted-average fair value of options granted during the period
 
 
$
—

 
 
 
$
—

 
 
 
$
7.14

Total intrinsic value of options exercised during the period
 
 
$
9,157

 
 
 
$
12,599

 
 
 
$
22,125