Schedule of Property Plant and Equipment (Detail) - USD ($) $ in Millions	Jun. 28, 2015	Dec. 28, 2014
Property, Plant and Equipment [Line Items]
Land and improvements	$ 19.8	$ 19.8
Buildings and improvements	399.5	397.5
Machinery and equipment	1,880.1	1,902.4
Construction in progress	52.2	52.1
Total property, plant and equipment	2,351.6	2,371.8
Less accumulated depreciation	1,761.7	1,744.1
Total property, plant, and equipment, net	$ 589.9	$ 627.7