Additional Balance Sheet Information (Details 1) - USD ($) $ in Thousands	Dec. 28, 2017	Dec. 29, 2016
Property, Plant and Equipment, Gross	$ 1,356,652	$ 1,246,688
Less accumulated depreciation and amortization	496,588	457,490
Property and equipment, net	860,064	789,198
Land and improvements [Member]
Property, Plant and Equipment, Gross	146,887	134,306
Buildings and improvements [Member]
Property, Plant and Equipment, Gross	759,166	699,828
Leasehold improvements [Member]
Property, Plant and Equipment, Gross	93,451	80,522
Furniture, fixtures and equipment [Member]
Property, Plant and Equipment, Gross	351,879	312,334
Construction in progress [Member]
Property, Plant and Equipment, Gross	$ 5,269	$ 19,698

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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