Annual report pursuant to Section 13 and 15(d)

Other Employee Benefit Plans (Details) (Narrative)

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Other Employee Benefit Plans (Details) (Narrative) (USD $)
12 Months Ended
Dec. 29, 2012
Dec. 31, 2011
Dec. 25, 2010
Defined Contribution Plans Disclosures [Line Items]      
Amount of the Company's contributions to the 401(k) plan $ 22,000,000 $ 20,000,000 $ 9,000,000
Maximum allowed percentage of employee's pre-tax salary contributed to the 401(k) plan 100.00%    
401(k) matching policy 75% of employees' contributions up to 6% of their compensation    
Amount of annual maximum allowed employer matching contributions $ 11,250 $ 11,025 $ 11,025