Restructuring Activities (Reconciliation Of Expenses By Type) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 1.2	$ 3.0	$ 4.6	$ 10.8
Employee termination expenses
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	0.0	1.8	0.1	5.2
Facility related costs
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	0.2	0.8	0.7	3.7
Other expenses
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 1.0	$ 0.4	$ 3.8	$ 1.9