v2.4.0.8
Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2013
Share-based Compensation [Abstract]  
Weighted-Average Assumptions For Valuation Of Stock Options Granted
 
Quarter ended
 
Year to date ended
 
June 30,
2013
 
July 1,
2012
 
June 30,
2013
 
July 1,
2012
Expected term
4.5 years

 
4.5 years

 
4.5 years

 
4.3 years

Expected volatility
54.0
%
 
59.0
%
 
56.9
%
 
59.1
%
Expected dividend yield
0.0
%
 
0.0
%
 
0.0
%
 
0.0
%
Risk-free interest rate
0.8
%
 
0.8
%
 
0.9
%
 
0.8
%
Estimated weighted-average fair value per stock option granted
$
15.54

 
$
14.05

 
$
14.68

 
$
15.48

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
117

 
31.67

 
 
Exercised
(22
)
 
21.56

 
 
Canceled
(66
)
 
35.19

 
 
Balance, June 30, 2013
2,228

 
$
38.45

5.38
$
10,969

Vested and expected to vest at June 30, 2013
2,153

 
$
38.56

5.26
$
10,641

Exercisable, June 30, 2013
1,674

 
$
39.14

4.31
$
8,772

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
95

 
31.85

 
 
Vested
(3
)
 
32.22

 
 
Canceled
(1
)
 
31.31

 
 
Balance, June 30, 2013
94

 
$
31.77

1.80
$
3,561

Vested and expected to vest at June 30, 2013
79

 
$
31.77

1.60
$
2,978