Property, Plant, and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 26, 2015
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 802,530	$ 786,323
Less accumulated depreciation	(507,299)	(506,099)
Property, plant and equipment, net	295,231	280,224
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	19,928	13,046
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	144,914	128,322
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	607,344	597,209
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 30,344	$ 47,746