XML 15 R23.htm IDEA: XBRL DOCUMENT v2.3.0.15
Stock-Based Compensation (Details) (USD $)
3 Months Ended9 Months Ended
Sep. 27, 2011
Sep. 28, 2010
Sep. 27, 2011
Sep. 28, 2010
Apr. 30, 2011
Stock-Based Compensation     
Stock-based compensation expense$ 2,851,000$ 2,891,000$ 8,797,000$ 9,473,000 
Income tax benefit1,091,0001,096,0003,365,0003,593,000 
Capitalized stock-based compensation76,00019,000206,000151,000 
Shares awarded under share-based compensation plan (in shares)    4,800,000
Shares awarded under share-based compensation plan prior to amendment (in shares)    3,800,000
Restricted shares     
Outstanding at the end of the period (in shares)700,000500,000700,000500,000 
Stock options
     
Stock-Based Compensation     
Weighted average fair value at the grant date for options issued (in dollars per share)$ 11.88$ 9.93   
Weighted average assumptions under Black-Scholes valuation model     
Expected stock price volatility (as a percent)38.50%43.80%   
Risk free interest rate (as a percent)1.40%1.70%   
Expected option term (in years)6.05.8   
Stock option activity, shares     
Outstanding, at the beginning of the period (in shares)  9,159,000  
Granted (in shares)  767,000  
Exercised (in shares)  (457,000)  
Cancelled (in shares)  (286,000)  
Outstanding at the end of the period (in shares)9,183,000 9,183,000  
Exercisable at the end of the period (in shares)4,575,000 4,575,000  
Weighted Average Exercise price     
Outstanding at the beginning of the period (in dollars per share)  $ 22.63  
Granted (in dollars per share)$ 30.77 $ 30.77  
Exercised (in dollars per share)$ 20.34 $ 20.34  
Cancelled (in dollars per share)$ 21.90 $ 21.90  
Outstanding at the end of the period (in dollars per share)$ 23.42 $ 23.42  
Exercisable at the end of the period (in dollars per share)$ 26.92 $ 26.92  
Weighted Average Remaining Contractual Term     
Outstanding at the beginning of the period (in years)  5.4  
Outstanding at the end of the period (in years)4.9 4.9  
Exercisable at the end of the period (in years)  3.6  
Aggregate Intrinsic Value     
Outstanding at the beginning of the period  79,835,000  
Outstanding at the end of the period49,407,000 49,407,000  
Exercisable at the end of the period12,177,000 12,177,000  
Total intrinsic value of options exercised900,000400,0004,600,0004,300,000 
Total unrecognized stock-based compensation expense18,700,000 18,700,000  
Expected weighted average period for recognition of compensation expense (in years)  2.5  
Restricted shares
     
Aggregate Intrinsic Value     
Total unrecognized stock-based compensation expense9,000,000 9,000,000  
Expected weighted average period for recognition of compensation expense (in years)  3.2  
Restricted shares     
Outstanding at the beginning of the period (in shares)  537,000  
Granted (in shares)  267,000  
Vested (in shares)  (51,000)  
Forfeited (in shares)  (18,000)  
Outstanding at the end of the period (in shares)735,000 735,000  
Fair value of shares vested$ 300,000$ 600,000$ 1,200,000$ 4,400,000 
Weighted Average Fair Value     
Outstanding at the beginning of the period (in dollars per share)  $ 14.72  
Granted (in dollars per share)$ 26.98 $ 29.84  
Vested (in dollars per share)  $ 23.67  
Forfeited (in dollars per share)$ 14.55 $ 14.55  
Outstanding at the end of the period (in dollars per share)$ 19.57 $ 19.57