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Share-Based Compensation (Details 3) (USD $)
12 Months Ended
Dec. 28, 2013
Share-based compensation  
Exercise price (in dollars per share) $ 18.48
1998 Plan
 
Share-based compensation  
Shares available for grant 1,000,000
1998 Plan | Options
 
Share-based compensation  
Aggregate options granted (in shares) 3,839,216
Shares available for grant 0
1998 Plan | Options | Minimum
 
Share-based compensation  
Termination period 7 years
1998 Plan | Options | Maximum
 
Share-based compensation  
Vesting period 5 years
Termination period 10 years
2004 Nonqualified Inducement Stock Option Plan | Options
 
Share-based compensation  
Aggregate options granted (in shares) 359,420
Shares available for grant 0
2009 Nonqualified Inducement Stock Option Plan | Options
 
Share-based compensation  
Aggregate options granted (in shares) 200,000
Vesting period 4 years
Termination period 7 years
Shares authorized 250,000
Shares available for grant 50,000
Exercise price (in dollars per share) $ 50.00