Goodwill and Other Intangible Assets - Long-lived asset impairment disclosure (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 27, 2015	Jun. 28, 2014	Jun. 27, 2015		Jun. 28, 2014
Finite-Lived Intangible Assets [Line Items]
Impairment of long-lived assets and goodwill		$ 1.2	$ 80.4	$ 1.2		$ 80.4
Goodwill impairment loss	[1]			0.0
AVC
Finite-Lived Intangible Assets [Line Items]
Impairment of long-lived assets and goodwill			80.4
Impairment of intangible assets			74.7
Goodwill impairment loss			4.4	$ 0.0	[1]
Impairment of property and equipment			$ 1.3
Impairment of property and equipment to be disposed of		$ 1.2

[1] Acquisition adjustments recorded during the first half of 2015 for the ERG and RCH segments relate to the acquisition of Anthro and Reznor, respectively. See Note B, “Acquisitions and Dispositions”.