Income Taxes (Reconciliation Of The Beginning And Ending Amount Of Unrecognized Tax Benefits) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2010
Income Tax Disclosure [Abstract]
Unrecognized tax benefits - beginning of year	$ 5.7	$ 7.1	$ 5.5
Gross increases - tax positions in prior periods	1.1	0.7	1.6
Gross increases - tax positions in the current period	0.3	0	0.2
Settlements with taxing authorities	2.1	(1.6)	0.2
Lapse of statute of limitations	(0.6)	(0.5)	0
Unrecognized tax benefits - end of year	$ 4.4	$ 5.7