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Supplemental Balance Sheet Information Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 26, 2015	Dec. 27, 2014
Other Assets, Current [Line Items]
Gross property, plant and equipment	$ 1,322,772	$ 1,331,780
Less accumulated depreciation	(644,813)	(654,983)
Property, plant and equipment, net	677,959	676,797
Land
Other Assets, Current [Line Items]
Gross property, plant and equipment	39,846	40,314
Buildings
Other Assets, Current [Line Items]
Gross property, plant and equipment	713,841	682,495
Machinery and equipment
Other Assets, Current [Line Items]
Gross property, plant and equipment	362,695	384,713
Leasehold improvements
Other Assets, Current [Line Items]
Gross property, plant and equipment	41,477	37,270
Furniture and fixtures
Other Assets, Current [Line Items]
Gross property, plant and equipment	21,783	22,577
Vehicles
Other Assets, Current [Line Items]
Gross property, plant and equipment	3,819	3,967
Computer hardware and software
Other Assets, Current [Line Items]
Gross property, plant and equipment	113,466	119,474
Construction in progress
Other Assets, Current [Line Items]
Gross property, plant and equipment	$ 25,845	$ 40,970

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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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