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
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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

+ References

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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

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No definition available.

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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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Property, Plant and Equipment (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 25, 2017	Jun. 26, 2016	Dec. 25, 2016
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 872,427		$ 584,269
Accumulated depreciation	(370,820)		(356,866)
Property, plant and equipment, net	501,607		227,403
Depreciation expense	19,500	$ 17,300
Land and buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	134,030		67,915
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	681,324		485,185
Leasehold improvements and others
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	10,539		4,868
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	46,534		$ 26,301
Europe
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 253,700