v2.4.0.6
Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2013
Share-based Compensation [Abstract]  
Weighted-Average Assumptions For Valuation Of Stock Options Granted
 
 
Quarter ended
 
 
March 31,
2013
 
April 1,
2012
Expected term
 
4.5 years

 
4.3 years

Expected volatility
 
57.1
%
 
59.2
%
Expected dividend yield
 
0.0
%
 
0.0
%
Risk-free interest rate
 
0.9
%
 
0.7
%
Estimated weighted-average fair value per stock option granted
 
$
14.61

 
$
16.03

Summary Of Stock Option Activity
 
Options
(in thousands)
 
Weighted
Average
Exercise Price
Weighted
Average
Remaining
Contractual
Term (in years)
Aggregate
Intrinsic Value
(in thousands)
Balance, December 31, 2012
2,199

 
$
38.55

 
 
Granted
109

 
31.42

 
 
Exercised
(10
)
 
22.37

 
 
Canceled
(50
)
 
33.12

 
 
Balance, March 31, 2013
2,248

 
$
38.39

5.56
$
6,297

Vested and expected to vest at March 31, 2013
2,158

 
$
38.51

5.43
$
6,138

Exercisable, March 31, 2013
1,621

 
$
39.07

4.38
$
5,288

Schedule of Share-based Compensation, Restricted Stock Units Award Activity
 
RSUs
(in thousands)
 
Weighted
Average Grant
Date Fair Value
Weighted
Average
Remaining
Contractual
Term (in years)
Aggregate
Intrinsic Value
(in thousands)
Balance, December 31, 2012
3

 
$
29.67

 
 
Granted
77

 
31.31

 
 
Vested
(2
)
 
31.94

 
 
Canceled

 

 
 
Balance, March 31, 2013
78

 
$
31.32

2.23
$
2,717

Vested and expected to vest at March 31, 2013
63

 
$
31.32

2.02
$
2,174