Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013
Income Taxes [Abstract]
Amount of unrecognized tax benefits	$ 4.4		$ 4.4
Unrecognized tax benefits that would impact effective tax rate	2.9		2.9
Unrecognized tax benefits, net increase in penalties and interest expense	0.1		0.2
Unrecognized tax benefits, accrued interest and penalties	0.9		0.9
Provision for taxes on income	$ 14.4	$ 8.9	$ 24.8	$ 25.2
Effective income tax rate (in hundredths)			25.90%	27.80%