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Commitments and Contingencies (Details) (USD $)
1 Months Ended9 Months Ended
May 31, 2008
Sep. 27, 2011
segment
officer
statement
rent
month
quarter
Jun. 20, 2011
Aug. 10, 2010
employee
May 10, 2010
employee
Jan. 09, 2007
employee
Commitments and Contingencies      
Threshold for certain compensation expense per year under IRS Code Section 162(m) $ 1,000,000    
Number of current executive officers to whom compensation expense, audited by IRS, was paid (in officers) 3    
Number of former executive officers to whom compensation expense, audited by IRS, was paid (in officers) 1    
Compensation expense disallowed as per notice issued by IRS5,100,000     
Reserve for estimated taxes, interest and penalties 1,400,000    
Number of unidentified employees who alleged being subjected to hostile work environment based on national origin (in employees)   15  
Number of former hourly restaurant employees who filed a lawsuit, alleging violations of California's wage and hour laws (in employees)     2
Maximum settlement amount of negotiated settlement agreement, combination of cash and gift cards  $ 1,275,000.00   
Number of current hourly restaurant employees who filed a class action lawsuit alleging violations of the California Labor Code (in employees)    3