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

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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.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Net Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 30, 2018	Jan. 02, 2018	Dec. 31, 2017	Dec. 25, 2016
Property, Plant and Equipment
Property and equipment, gross	$ 665,172		$ 640,499
Accumulated depreciation and amortization	(438,278)		(406,168)	$ (386,884)
Net property and equipment	226,894	$ 234,331	234,331	$ 230,473
Land
Property, Plant and Equipment
Property and equipment, gross	33,833		33,994
Buildings and improvements
Property, Plant and Equipment
Property and equipment, gross	91,665		91,809
Leasehold improvements
Property, Plant and Equipment
Property and equipment, gross	125,192		125,204
Equipment and other
Property, Plant and Equipment
Property and equipment, gross	402,991		378,509
Construction in progress
Property, Plant and Equipment
Property and equipment, gross	$ 11,491		$ 10,983