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Stock-Based Compensation (Tables)
 3 Months Ended
Mar. 24, 2013
Stock-Based Compensation [Abstract]  
Stock Option Activity
The following table summarizes the stock option activities for the nine months ended March 24, 2013 (in thousands, except per share price data):
 
 
Stock Option Shares
 
 
Weighted Average
Option Exercise
Price per Share
 
 
Weighted Average
Grant Date
Fair Value per Share
 
 
Aggregate
Intrinsic Value
 
Outstanding, June 24, 2012  
 
 
2,044
 
 
$
16.76
 
 
 
—
 
 
$
7,031
 
Granted  
 
 
111
 
 
$
19.89
 
 
$
5.56
 
 
 
—
 
Exercised  
 
 
(294
)
 
$
19.69
 
 
 
—
 
 
$
1,447
 
Expired or forfeited  
 
 
(34
)
 
$
18.41
 
 
 
—
 
 
 
—
 
Outstanding, March 24, 2013
 
 
1,827
 
 
$
17.24
 
 
 
—
 
 
$
7,209
 
Restricted Stock Unit Activity
The following table summarizes the RSU activity for the nine months ended March 24, 2013 (in thousands, except per share price data):
 
 
Restricted
Stock
Units
 
 
Weighted Average
Grant Date
Fair Value per Share
 
 
Aggregate
Intrinsic Value
 
Outstanding, June 24, 2012  
 
 
2,905
 
 
$
21.72
 
 
$
57,932
 
Granted  
 
 
110
 
 
$
18.23
 
 
 
—
 
Vested  
 
 
(267
)
 
$
19.66
 
 
$
5,024
 
Forfeited
 
 
(307
)
 
$
20.38
 
 
 
—
 
Outstanding, March 24, 2013
 
 
2,441
 
 
$
21.93
 
 
$
51,181
 
Additional Information Relating to Stock Options and RSU's
Additional information relating to the Company's stock based compensation plans, including employee stock options and RSUs (including RSUs with performance based and market-based vesting criteria) at March 24, 2013 and June 24, 2012 is as follows (in thousands):
 
 
 
March 24, 2013
 
 
June 24, 2012
 
Outstanding options exercisable  
 
 
1,666
 
 
 
1,749
 
Options and RSUs available for grant  
 
 
8,724
 
 
 
8,505
 
Total reserved common stock shares for stock option plans  
 
 
12,992
 
 
 
13,454
 
Stock-Based Compensation Expense
For the three and nine months ended March 24, 2013 and March 25, 2012, stock‑based compensation expense associated with the Company's stock options and RSUs (including RSUs with performance-based vesting and market-based vesting criteria) was as follows (in thousands):
 
 
Three Months Ended
 
 
Nine Months Ended
 
 
 
March 24, 2013
 
 
March 25, 2012
 
 
March 24, 2013
 
 
March 25, 2012
 
Selling, general and administrative expense  
 
$
2,693
 
 
$
2,166
 
 
$
8,711
 
 
$
7,097
 
Research and development expense  
 
 
1,583
 
 
 
1,155
 
 
 
4,401
 
 
 
3,054
 
Cost of sales
 
 
1,021
 
 
 
819
 
 
 
3,302
 
 
 
1,958
 
Total stock‑based compensation expense  
 
$
5,297
 
 
$
4,140
 
 
$
16,414
 
 
$
12,109
 
Stock Options Valuation Assumptions
The fair value of the Company stock options issued during the nine months ended March 24, 2013 and March 25, 2012, was determined at the grant date using the Black‑Scholes option pricing model with the following weighted average assumptions:
 
 
Nine Months Ended
 
 
 
March 24, 2013
 
 
March 25, 2012
 
Expected life  
 
3.5 years
 
 
3.5 years
 
Risk free interest rate  
 
 
0.40
%
 
 
0.37
%
Volatility  
 
 
37.57
%
 
 
46.3
%
Dividend yield  
 
 
0.0
%
 
 
0.0
%