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Stock-Based Awards - Stock Options (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 25, 2016
Dec. 27, 2015
Dec. 28, 2014
Options (number of shares):      
Exercised (shares) (114,652) (341,362) (169,286)
Weighted Average Exercise Price (in dollars per share):      
Total intrinsic value $ 700 $ 2,700 $ 1,500
Employee Stock Option [Member]      
Options (number of shares):      
Options outstanding at beginning of year (shares) 6,390,000    
Granted (shares) 0 0 0
Exercised (shares) (115,000)    
Forfeited/Expired (shares) (1,757,000)    
Options outstanding at end of period (shares) 4,518,000 6,390,000  
Options expected to vest at end of period (shares) 4,518,000    
Options exercisable at end of period (shares) 4,518,000    
Weighted Average Exercise Price (in dollars per share):      
Options outstanding at beginning of year (in dollars per share) $ 16    
Granted (in dollars per share) 0    
Exercised (in dollars per share) 7    
Forfeited/Expired (in dollars per share) 24    
Options outstanding at end of period (in dollars per share) 14 $ 16  
Options expected to vest at end of period 14    
Options exercisable at end of period $ 14    
Outstanding weighted average remaining contractual term, beginning of period 3 years 3 years  
Outstanding weighted average remaining contractual term, end of period 3 years 3 years  
Outstanding aggregate intrinsic value, beginning of period $ 13,938    
Outstanding aggregate intrinsic value, end of period $ 12,797 $ 13,938  
Options expected to vest weighted average remaining contractual term 3 years    
Options exercisable weighted average remaining contractual term 3 years    
Options expected to vest aggregate intrinsic value $ 12,797    
Options exercisable aggregate intrinsic value $ 12,797