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Significant Accounting Policies (Tables)
12 Months Ended
Dec. 29, 2018
Accounting Policies [Abstract]  
Estimated useful lives of property, plant and equipment
Property and Equipment

Property and equipment are carried at cost.  Depreciation is recorded using the straight-line method over the estimated useful lives of the assets.  Improvements to leased premises are amortized using the straight-line method over the initial term of the lease or the useful life of the improvement, whichever is less. The following estimated useful lives are generally applied:
 
Life
Buildings
30 – 35 years
Leasehold and building improvements
1 – 35 years
Furniture, fixtures and equipment
5 – 10 years
Computer software and hardware
2 – 7 years