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Property and Equipment, Net (Tables)
12 Months Ended
Dec. 30, 2017
Property, Plant and Equipment [Abstract]  
Property and equipment, including related estimated useful lives
December 30,December 31,
20172016
Land $21,019$19,438
Buildings and permanent improvements 143,250127,097
Leasehold improvements 106,23695,048
Machinery and warehouse equipment 138,478121,395
Furniture, fixtures and other 149,136129,444
Computer equipment and software 432,379372,322
990,498864,744
Less accumulated depreciation (615,497)(530,838)
Property and equipment, net $375,001$333,906
Estimated Useful
Lives (in years)
Buildings and permanent improvements 40
Machinery and warehouse equipment 5-10
Furniture, fixtures and other 3-10
Computer equipment and software 3-10