Restructuring and Other Charges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2016	Jun. 28, 2015	Jul. 03, 2016	Jun. 28, 2015	Dec. 31, 2014
Restructuring and Other Charges [Abstract]
Reduction in workforce					10.00%
Annualized savings from restructuring program			$ 11.5
Restructuring and Other Charges [Abstract]
Restructuring Charges	$ 10.3	$ 1.0	11.2	$ 1.0
Impairment of Assets	18.5	15.8	18.5	15.8
Total restructuring and other charges	28.8	$ 16.8	29.7	$ 16.8
Restructuring Reserve [Roll Forward]
Restructuring liability, beginning of period			7.9
Additional provisions			11.2
Cash payments			(6.1)
Other			(0.3)
Restructuring liability, July 3, 2016	$ 12.7		$ 12.7