Goodwill and Other Intangible Assets - Long-lived asset impairment disclosure (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Sep. 26, 2015	Jun. 27, 2015	Sep. 27, 2014	Jun. 28, 2014	Sep. 26, 2015	Sep. 27, 2014	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Impairment of long-lived assets and goodwill	$ 0.0		$ 0.0		$ 1.2	$ 80.4
Goodwill impairment loss					0.0
Percentage of fair value in excess of carrying amount							100.00%
Amortization of intangible assets	$ 17.1		$ 14.9		49.0	$ 43.7
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
Impairment of property and equipment				$ 1.3
Impairment of property and equipment to be disposed of		$ 1.2
RCH
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment loss					$ 0.0
Reduction in useful lives of intangible assets due to impairment (percent)	20.00%
Estimated cash flows in excess of carrying value of long-lived assets (percent)	100.00%
Change in Service Life | RCH
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 0.3
Change in annual amortization expense	$ 3.1
Minimum | RCH
Finite-Lived Intangible Assets [Line Items]
Percentage of fair value in excess of carrying amount	20.00%				20.00%
Maximum | RCH
Finite-Lived Intangible Assets [Line Items]
Percentage of fair value in excess of carrying amount	30.00%				30.00%