Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 25, 2016
Components of property, plant and equipment [Abstract]
Gross property, plant and equipment	$ 602,499	$ 569,500
Less accumulated depreciation	422,052	383,713
Net property, plant and equipment less tools, dies and molds	180,447	185,787
Tools, dies and molds, net of accumulated depreciation	79,263	81,611
Net property, plant and equipment	259,710	267,398
Land and Improvements [Member]
Components of property, plant and equipment [Abstract]
Gross property, plant and equipment	3,350	3,096
Buildings and Improvements [Member]
Components of property, plant and equipment [Abstract]
Gross property, plant and equipment	193,940	175,684
Machinery, Equipment and Software [Member]
Components of property, plant and equipment [Abstract]
Gross property, plant and equipment	$ 405,209	$ 390,720