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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 29, 2012
Summary of Significant Accounting Policies [Abstract]  
Depreciation and amortization over the estimated useful lives, using the straight-line method
Depreciation and amortization are generally provided over the estimated useful lives, using the straight-line method, as follows:

Computer equipment and related software
2-7 years
Buildings
25-32 years
Leasehold and building improvements
Shorter of the lease term
or the estimated useful life
Furniture and fixtures
3-5 years
Equipment
3-5 years